$44 Find Deals on Flights from Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Anywhere departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

Search hundreds of travel sites at once for cheap international flights from Ontario

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Find Cheap Flights from Ontario

Where can I fly from Ontario?Prices from ONT, departing Sat 3/1 and returning Sat 3/8

Flights from Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to help you find the cheapest flights, the best time to fly and much more.

Which are the most popular places to fly to from Ontario?

The domestic destinations KAYAK users have most searched for when searching for flights from Ontario.
Based on KAYAK flight searches, the most popular place to fly from Ontario is New York (8% of total searches). The next most popular destinations are Seattle/Tacoma Intl (7%) and Honolulu (6%).

What are the most popular international flights out of Ontario?

The international destinations KAYAK users have most searched for when searching for flights from Ontario.
There are many international destinations you can fly to from Ontario. The most popular international destinations among KAYAK users are San Salvador, Manila and Guadalajara.

What are the most popular countries to fly to from Ontario?

The most popular countries KAYAK users have searched for from Ontario along with the average round-trip price for the route clicked by KAYAK users in the last 2 weeks.
Based on KAYAK flight searches, the most popular country to fly to from Ontario is Mexico (25% of total searches). The next most popular destinations are Taiwan (62%) and El Salvador (13%).

Which cities can I fly to direct from Ontario?

There are loads of places you can fly direct to from Ontario. The most popular destinations for direct flights among KAYAK users are Phoenix, Portland, Honolulu, Salt Lake City and Denver. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Denver at $98, while the most expensive was San Jose, at $259.

Which international cities can I fly to direct from Ontario?

There are many international destinations you can fly to non-stop from Ontario. The most popular international destinations from KAYAK users are Taipei City, Guadalajara and San Salvador. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Guadalajara at $199, while the most expensive was Taipei City, at $627.

What is the longest direct flight from Ontario?

The longest direct flight you can take from Ontario is to Taipei City Taiwan Taoyuan Intl Airport, with a duration of 14h 45m. The next longest is Honolulu at 6h 10m, followed by a flight to New York at 5h 20m.

Good to know

Low season

February

High season

August

Cheapest flight

$44
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Ontario to Dallas/Fort Worth Airport

Flights from Ontario: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew from Ontario to anywhere 
LeoFlew with American AirlinesONT-CLTSep 2024
Have plenty of patience for the casual travelers! They are oblivious of rules and etiquettes that slows down the process for everyone. Case in point, a guy held up the line trying to place both his personal item (should be UNDER the seat in front of you) and his carry on case horizontally. Obviously not aware of the big poster right in front of his displaying the proper way of placing his case on it's side. Slowed the whole line of people behind him. Also be mindful the agents in Ontario airport (or any smaller airports) might not be the most knowledgeable on the rules and regulations of air travel, luggage specification allowances etc. Stay patient!! Also the seats do not recline that well anymore on AA flights. So if you have back problems, be sure to bring some back supports.
Verified travelerFlew with Hawaiian AirlinesONT-HNLJul 2024
TSA was super fast. Easy airport to navigate.
ShonelleFlew with FrontierONT-DENAug 2024
Don't choose Frontiet Airlines as your flight provider.
WILLIAMFlew with American AirlinesONT-DFWMar 2024
Check in counter is small, limited staffs for early flights. Also, limited Kiosk stations as well.
MariFlew with American AirlinesONT-CLTJan 2024
Bring a blanket it's very cold on plane

FAQs for booking flights out of Ontario

  • Do flights from Ontario via Ontario International Airport (ONT) consider persons with reduced mobility?

    Special needs passengers, such as those with restricted mobility or impaired vision, will find it easier to fly from Ontario via ONT. To assist these passengers, all airlines have workers stationed throughout the airport. Anyone who requires special airport services should make their request while making their travel arrangements.

  • Can I park my car at Ontario International Airport?

    Different types of parking indicate the probability of parking your car at the airport. If you've arrived at the airport and have a to-and-fro flight from Ontario, consider parking your car at private, public, or valet parking lots with a surcharge both for short and long parking.

  • Are there nursing rooms at Ontario International Airport?

    Lactating mothers are much considered on flights from Ontario via ONT, for it features two nursing rooms for them. One of these nursing rooms is situated in Terminal 2 on the second floor past the TSA screening across from gate 204, next to the women's restroom. The other one is at Terminal 4 on the second floor across from gate 407, next to the family restroom.

  • Which airlines have lounges at Ontario International Airport in Ontario?

    Consider using the Aspire Lounge in Terminal 2, open to guests traveling with United, Alaska, Frontier, and Delta airlines. The lounge provides unparalleled airfield views, excellent food, and comfortable seating to work or relax.

  • What is Ontario also known as?

    Ontario Airport’s airport code is ONT. It can also be referred to as Ontario, Ontario Intl.

  • How does KAYAK find such low prices on flights from Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to your destination with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight out of Ontario

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Denver $86 one-way - $124 round-trip; Dallas $171 one-way - $315 round-trip; Las Vegas $59 one-way - $73 round-trip
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly from Ontario is April.
  • Morning departure is around 6% cheaper than an evening flight, on average*.
  • Flights from Ontario depart from Ontario International Airport (ONT). Most passengers use Ontario International Airport from Ontario to Mexico and Las Vegas.
  • It would take you approximately 5 minutes to cover the 3 miles connecting the Ontario city center to Ontario International Airport. If you are in a hurry, consider using a private means of transport such as a taxi, Uber, or car rental. A bus or a train is an alternative means of transport if you are not in a hurry to catch your flight.
  • Travelers with the earliest flight from the airport should consider staying in one of the hotels close to it. For instance, you can book a room at Holiday Inn Ontario Airport. This hotel is a 3-minute walk to ONT and provides a complimentary airport shuttle to its guests who are connecting to the airport for a flight and have pieces of luggage.
  • Never leave your pet behind if you have a flight from Ontario through Ontario International Airport. The airport considers animals by building several pet relief areas inside and outside. These areas are close to gates 210 in Terminal 2 and 410 in Terminal 4. The outside pet relief area is located at the end of the terminal building.
  • Everyone understands how stressful it is to travel with children on long vacations. JetBlue Airlines is a good option if you are flying with children from Ontario. This airline provides kid-friendly amenities such as video games, subscribed cartoon channels, plane toys, and free refreshments to keep kids entertained during the flight. This airline's planes boast big, pleasant seats with ample legroom, making it ideal for parents with children on their laps.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Ontario to Anywhere

Need help choosing which airline to fly with from Ontario to Anywhere? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
China AirlinesOverall score based on 726 reviews
8.0Comfort
8.3Boarding
8.5Crew
7.8Food
8.0Entertainment
Airline reviews

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

10.0 ExcellentAnonymous, Jan 2025TPE - YVR
Read more China Airlines reviews

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

staff are super nice and effiecient! It was a very comfortable and relaxing flight

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

Didn't like on this return inbound flights (from Hong Kong to Vancouver) Outbound to the Hong Kong was good.

I was ordered vegetarian food, but didn't services to me :(

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

Airline itself is great. While food was being taken off of my tray my beer spilled which was a total accident and I wasn’t upset about that, what was frustrating was I had to ask for towels to clean up and wipe my leg. It would have been left as is if I hadn’t.

The food was the only thing that could have made the experience even better. Everything was stellar but the food. The staff was superb. I’ve been flying with ANA for years as my go-to and I think I may have found my new favorite. 😍

Short lay over. Seat assignment was terrible. Was traveling as a family and end up being seated separately. Will not use underpricer ever again.

Unable to set seat assignment. Got a call from presumably “China airlines representative” but was asking for an exorbitant amount for the seat assignment. Was traveling as a family end up being assigned to different seats as a result. Will never use underpricer again.

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

Old and out of date plane, it seem like every time I fly with united there’s and issue. We were delayed,

We took off an hour late due to arrival airport not having enough gates. That was followed by 1:30 wait to get our bags delivered for the entire flight.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Checkin was painful and slow! Lady didn’t seem to know what was going on and couldn’t explain the delay. Seemed ahe couldnt see the computer scree and we couldn’t hear her talk through her mask.

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

DO NOT BOOK THROUGH AMERICAN AIRLINES IF YOU HAVE ANY ADDITIONAL NEEDS. Great flight, crew etc. it wasn’t full so had space to stretch out Only downside was there was no GF option for my partner. We booked through American and it was a Qantas flight so despite contacting both airlines to confirm, she didn’t have a gluten free meal for the 16 hour flight (nor the flight in the other direction). The flight attendants did their best to accommodate but it was not super substantial.

After several delays and being rebooked onto a layer flight, I had to speak to three AA agents for baggage claim to get an attendant. All were in foul mode and reluctant to assist or offer any assistance.

Multiple maintenance delays and the missed and rebooked connection changed gates at least 6 times including one which had us walking 20 minutes to another terminal and then back again. Seated our family of three in different middle seats throughout the plane and then there was an empty seat next to me. Very long travel day which I would have never agreed to if I knew the itinerary would be changed at 5 am, 2 hours before takeoff.

It was as expected for such a short flight. No complaints

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Crazy seating issues. We got seated far apart. Offered middle seats at a premium rate. Why is a middle seat now the expensive seat? Baffling.

The boarding process was a nightmare and though we were traveling business class, we were in Group 2 and the organization was terrible. The Business Class on this flight was crowded and did not feel clean and nice. Overall, I would not travel Business again on the American Airline flight through British Airways Not nearly special enough for the considerable cost .

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

The flight left over two hours late. They charged me $180 to bring a carry on. There was an error with the spelling of my name and Frontair agent lied that I would need to pay $200 for her to fix the spelling, and pressured me that if I don't do it quick I would lose the flight. I called back and another agent said it costs $75 to fix. All in all, this company is a complete scam.

Very easy with the app to board and staff skills

I took my first and last flight with FRONTIER. The seats are not able to be reclined so it’s not a very comfortable experience when you take a flight of 3 hours or longer. You must pay for your luggage either carry on or check in, so taking all this in consideration at the end what you think you’re saving your paying in services that should be included. Not a beverage in sight. . You’re seriously better off getting on a proper airline such as Delta, AA, United, etc.

After waiting several minutes to be acknowledged by 3 employees on their phones, was told we had missed our flight because the doors were closed at that literal moment. Had they given any actual service or help while we were standing there we would have been on with time to spare. More than 10 people were turned away in this fashion claiming there was no way they could let us on the plane, even though it was still sitting connected to the terminal. After the desk agents let us know they didn't care about the situation we were forced to pay more than twice the price of our original tickets as no credits were given for the price of the "missed" flight. And the icing on the cake was after being treated poorly, fleeced for another few hundred dollars for new tickets? We waited on the next plane for 25 minutes passed the "doors closed" time, letting almost an extra dozen passengers on board. You're company has lazy, disinterested employees and your lack of any real help will ensure this was the first and last time we fly Frontier. Awful.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

With frontier you get what you pay for. The flight was two hours late. It’s a tight fit for the number of people they bring but you get to where you’re going cheap. Sometimes that’s more important than a nifty drink and cool TV..

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

Book cheap domestic flights from Ontario

Recent round-trip flight deals

3/25Tue
nonstopFrontier
1h 15mONT-LAS
3/27Thu
nonstopFrontier
1h 06mLAS-ONT
$41
2/20Thu
nonstopFrontier
1h 13mONT-LAS
2/24Mon
nonstopFrontier
1h 04mLAS-ONT
$42
2/15Sat
nonstopUnited Airlines
1h 33mONT-SFO
2/19Wed
nonstopUnited Airlines
1h 30mSFO-ONT
$57
2/11Tue
nonstopUnited Airlines
1h 31mONT-SFO
2/12Wed
nonstopUnited Airlines
1h 26mSFO-ONT
$67
3/18Tue
nonstopAlaska Airlines
2h 50mONT-SEA
3/26Wed
nonstopAlaska Airlines
2h 38mSEA-ONT
$177
2/26Wed
nonstopDelta
2h 55mONT-SEA
3/1Sat
nonstopDelta
2h 47mSEA-ONT
$187
3/1Sat
nonstopAlaska Airlines
2h 50mONT-SEA
3/8Sat
nonstopAlaska Airlines
2h 37mSEA-ONT
$197
4/7Mon
nonstopDelta
2h 55mONT-SEA
4/8Tue
nonstopDelta
2h 43mSEA-ONT
$213
2/27Thu
1 stopAmerican Airlines
6h 08mONT-SFO
3/3Mon
1 stopAmerican Airlines
5h 59mSFO-ONT
$217
3/11Tue
1 stopAmerican Airlines
7h 39mONT-HOU
3/25Tue
1 stopAmerican Airlines
5h 37mHOU-ONT
$237

Search by stops

Search by airline

Search by price

Recent one-way flight deals

4/6Sun
nonstopFrontier
1h 10mONT-LAS
$34
2/24Mon
nonstopFrontier
1h 36mONT-SFO
$34
2/15Sat
nonstopUnited Airlines
1h 33mONT-SFO
$59
2/6Thu
nonstopUnited Airlines
1h 31mONT-SFO
$69
3/4Tue
nonstopAlaska Airlines
2h 50mONT-SEA
$89
3/11Tue
1 stopAlaska Airlines
4h 16mONT-SEA
$98
3/1Sat
nonstopDelta
2h 55mONT-SEA
$99
3/22Sat
1 stopAmerican Airlines
3h 05mONT-LAS
$116
2/25Tue
1 stopAmerican Airlines
3h 20mONT-LAS
$119
3/1Sat
1 stopDelta
5h 43mONT-DFW
$119

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Anywhere

Last minute flight, train and bus deals

2/1Sat
nonstopFrontier
1h 11mONT-LAS
2/6Thu
nonstopFrontier
1h 06mLAS-ONT
$94
2/1Sat
nonstopFrontier
1h 11mONT-LAS
3/2Sun
nonstopFrontier
1h 06mLAS-ONT
$98
2/2Sun
nonstopUnited Airlines
1h 31mONT-SFO
2/4Tue
nonstopUnited Airlines
1h 29mSFO-ONT
$117
2/4Tue
nonstopUnited Airlines
1h 31mONT-SFO
2/6Thu
nonstopUnited Airlines
1h 26mSFO-ONT
$157
2/1Sat
multi-stopAmerican Airlines
6h 11mONT-SFO
2/2Sun
multi-stopAmerican Airlines
6h 11mSFO-ONT
$198
1/31Fri
multi-stopAmerican Airlines
6h 20mONT-SFO
2/2Sun
multi-stopAmerican Airlines
6h 11mSFO-ONT
$199
2/4Tue
nonstopDelta
2h 55mONT-SEA
2/7Fri
nonstopDelta
2h 47mSEA-ONT
$257
2/4Tue
multi-stopAlaska Airlines
4h 16mONT-SEA
2/6Thu
nonstopAlaska Airlines
2h 34mSEA-ONT
$287
2/3Mon
multi-stopDelta
14h 24mONT-EWR
2/10Mon
multi-stopDelta
8h 21mEWR-ONT
$302
2/1Sat
nonstopAlaska Airlines
2h 54mONT-SEA
2/7Fri
nonstopAlaska Airlines
2h 34mSEA-ONT
$332

Search by stops

Search by airline

Search by price

Book cheap international flights from Ontario

Recent round-trip flight deals

5/6Tue
multi-stopFrontier
11h 11mONT-CUN
5/14Wed
multi-stopFrontier
10h 44mCUN-ONT
$245
5/9Fri
multi-stopFrontier
11h 11mONT-CUN
5/14Wed
multi-stopFrontier
10h 44mCUN-ONT
$262
3/8Sat
multi-stopVolaris
10h 28mONT-CUN
3/12Wed
multi-stopVolaris
13h 23mCUN-ONT
$391
3/28Fri
multi-stopVolaris
11h 17mONT-CUN
4/2Wed
multi-stopVolaris
13h 17mCUN-ONT
$399
2/11Tue
multi-stopUnited Airlines
18h 15mONT-MAD
2/18Tue
multi-stopUnited Airlines
23h 30mMAD-ONT
$546
3/2Sun
multi-stopUnited Airlines
18h 35mONT-MAD
3/12Wed
multi-stopUnited Airlines
20h 32mMAD-ONT
$575
4/29Tue
multi-stopDelta
18h 25mONT-MAD
5/8Thu
multi-stopDelta
19h 01mMAD-ONT
$740
4/29Tue
multi-stopDelta
23h 51mONT-MAD
5/7Wed
multi-stopDelta
19h 01mMAD-ONT
$744
7/29Tue
multi-stopAmerican Airlines
33h 28mONT-DEL
7/31Thu
multi-stopAmerican Airlines
34h 55mDEL-ONT
$1,313
6/14Sat
multi-stopAmerican Airlines
33h 21mONT-DEL
6/30Mon
multi-stopAmerican Airlines
35h 09mDEL-ONT
$1,586

Search by stops

Search by airline

Search by price

Recent one-way flight deals

4/4Fri
multi-stopVolaris
9h 51mONT-CUN
$182
2/11Tue
multi-stopFrontier
10h 35mONT-CUN
$183
3/17Mon
multi-stopAlaska Airlines
17h 46mONT-CUN
$235
3/12Wed
multi-stopAmerican Airlines
11h 33mONT-CUN
$236
4/16Wed
multi-stopAlaska Airlines
23h 15mONT-CUN
$248
3/2Sun
multi-stopAmerican Airlines
18h 16mONT-CUN
$275
4/28Mon
multi-stopUnited Airlines
6h 15mONT-CUN
$280
4/10Thu
multi-stopUnited Airlines
18h 38mONT-CUN
$285
2/27Thu
multi-stopDelta
7h 10mONT-CUN
$296
5/9Fri
multi-stopDelta
52h 35mONT-DEL
$423

Search by stops

Search by airline

Search by price

Everything you need to know for your flight from Ontario

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.