$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 Worldwide departing on 7/26. 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.
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Find Cheap Flights from Ontario

Where can I fly from Ontario?Prices from ONT, departing Fri 5/2 and returning Fri 5/9

Book Cheap International Flights Deals from Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip international flight deals from Ontario

KAYAK's recommended round-trip international deals departing in the coming months from the most popular airlines that fly from Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Frontier Logo
10:53 am - 12:02 pmONT-LAS
1h 09mnonstop
Frontier Logo
2:25 pm - 3:35 pmLAS-ONT
1h 10mnonstop
$51Frontier
Find Deal
Thu, Apr 24 - Thu, Apr 24
Frontier Logo
2:43 pm - 3:53 pmONT-LAS
1h 10mnonstop
Frontier Logo
7:15 pm - 8:19 pmLAS-ONT
1h 04mnonstop
$53Frontier
Find Deal
Wed, Apr 16 - Wed, Apr 16
United Airlines Logo
6:00 am - 7:28 amONT-SFO
1h 28mnonstop
United Airlines Logo
9:30 am - 11:05 amSFO-ONT
1h 35mnonstop
$72United Airlines
Find Deal
Sat, Apr 19 - Sat, Apr 19
United Airlines Logo
6:00 am - 7:28 amONT-SFO
1h 28mnonstop
United Airlines Logo
9:25 pm - 10:55 pmSFO-ONT
1h 30mnonstop
$137United Airlines
Find Deal
Wed, Apr 16 - Fri, Apr 18
Southwest Logo
11:00 am - 4:15 pmONT-LAS
5h 15m2 stops
Southwest Logo
9:55 pm - 11:00 pmLAS-ONT
1h 05mnonstop
$142Southwest
Find Deal
Tue, Apr 22 - Thu, Apr 24
Southwest Logo
3:40 pm - 10:40 pmONT-SFO
7h 00m2 stops
Southwest Logo
5:15 am - 10:35 amSFO-ONT
5h 20m1 stop
$156Southwest
Find Deal
Wed, Apr 30 - Wed, May 7
Delta Logo
5:30 pm - 8:25 pmONT-SEA
2h 55mnonstop
Delta Logo
8:20 am - 11:04 amSEA-ONT
2h 44mnonstop
$167Delta
Find Deal
Mon, Apr 28 - Sat, May 10
Delta Logo
2:35 pm - 5:25 pmONT-SEA
2h 50mnonstop
Delta Logo
11:15 am - 1:55 pmSEA-ONT
2h 40mnonstop
$177Delta
Find Deal
Tue, Apr 22 - Wed, Apr 23
American Airlines Logo
2:44 pm - 10:40 pmONT-HOU
5h 56m1 stop
American Airlines Logo
8:16 pm - 11:43 pmHOU-ONT
5h 27m1 stop
$196American Airlines
Find Deal
Wed, Apr 30 - Wed, May 7
American Airlines Logo
2:44 pm - 10:40 pmONT-HOU
5h 56m1 stop
American Airlines Logo
8:16 pm - 11:43 pmHOU-ONT
5h 27m1 stop
$197American Airlines
Find Deal
Wed, Apr 30 - Wed, May 7

KAYAK's insights & trends for flights from Ontario

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 (11% of total searches). The next most popular destinations are Houston (7%) and Seattle/Tacoma Intl (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 Bangkok, London and Manila.

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 Taiwan (66% of total searches). The next most popular destinations are Mexico (20%) and El Salvador (14%).

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 Chicago, Phoenix, Portland, Honolulu and Charlotte. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Denver at $109, while the most expensive was Honolulu, at $339.

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 San José del Cabo, Guadalajara and San Salvador. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was San José del Cabo at $156, while the most expensive was San Salvador, at $314.

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 5h 55m, 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 with an average 3% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Ontario to Las Vegas

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 $121 one-way - $182 round-trip; Dallas $157 one-way - $251 round-trip; Taipei City $482 one-way - $853 round-trip
  • 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

Top 5 airlines serving from Ontario to Worldwide

Need help choosing which airline to fly with from Ontario to Worldwide? 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 724 reviews
8.5Crew
8.3Boarding
8.0Comfort
7.8Food
8.0Entertainment
Airline reviews

Most relaxing long distance flight I have been on. And I have flown on many.

10.0 ExcellentErlend, Mar 2025TPE - YVR
Read more China Airlines reviews

Most relaxing long distance flight I have been on. And I have flown on many.

Not great, will likely try to fly another or maybe I should have upgraded my ticket? Needed Air…

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

My ticket did not indication which group I was in for boarding; the gate attended help me

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

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.

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.

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

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.

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Seats were comfortable. It’s was so cold and very uncomfortable. I paid 2000 miles for wifi service that was choppy the whole flight. Would like to be reimbursed for my miles Food was so disappointing. Three cold and terrible meals for $3000 round trip. This needs to be better.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

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.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

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.

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

Bag should not be so much money. This is how Frontier takes advantage of customers

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

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.

Book cheap domestic flights from Ontario

Recent round-trip flight deals

4/24Thu
nonstopFrontier
1h 09mONT-LAS
4/24Thu
nonstopFrontier
1h 10mLAS-ONT
$51
4/16Wed
nonstopFrontier
1h 10mONT-LAS
4/16Wed
nonstopFrontier
1h 04mLAS-ONT
$53
4/19Sat
nonstopUnited Airlines
1h 28mONT-SFO
4/19Sat
nonstopUnited Airlines
1h 35mSFO-ONT
$72
4/16Wed
nonstopUnited Airlines
1h 28mONT-SFO
4/18Fri
nonstopUnited Airlines
1h 30mSFO-ONT
$137
4/22Tue
2 stopsSouthwest
5h 15mONT-LAS
4/24Thu
nonstopSouthwest
1h 05mLAS-ONT
$142
4/30Wed
2 stopsSouthwest
7h 00mONT-SFO
5/7Wed
1 stopSouthwest
5h 20mSFO-ONT
$156
4/28Mon
nonstopDelta
2h 55mONT-SEA
5/10Sat
nonstopDelta
2h 44mSEA-ONT
$167
4/22Tue
nonstopDelta
2h 50mONT-SEA
4/23Wed
nonstopDelta
2h 40mSEA-ONT
$177
4/30Wed
1 stopAmerican Airlines
5h 56mONT-HOU
5/7Wed
1 stopAmerican Airlines
5h 27mHOU-ONT
$196
4/30Wed
1 stopAmerican Airlines
5h 56mONT-HOU
5/7Wed
1 stopAmerican Airlines
5h 27mHOU-ONT
$197

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Recent one-way flight deals

7/26Sat
nonstopFrontier
1h 14mONT-LAS
$39
7/13Sun
nonstopFrontier
1h 33mONT-SFO
$39
4/9Wed
nonstopUnited Airlines
1h 28mONT-SFO
$49
5/6Tue
nonstopUnited Airlines
1h 27mONT-SFO
$69
5/5Mon
1 stopSouthwest
4h 30mONT-SFO
$76
5/1Thu
1 stopSouthwest
3h 50mONT-LAS
$79
5/10Sat
1 stopAmerican Airlines
6h 43mONT-HOU
$99
5/29Thu
nonstopAmerican Airlines
1h 15mONT-PHX
$100
5/22Thu
1 stopDelta
5h 55mONT-IAH
$119
5/9Fri
1 stopDelta
9h 33mONT-HOU
$119

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Last minute flights from Ontario to Worldwide

Last minute flight, train and bus deals

4/5Sat
nonstopFrontier
1h 10mONT-LAS
4/10Thu
nonstopFrontier
1h 05mLAS-ONT
$96
4/6Sun
nonstopFrontier
1h 10mONT-LAS
4/8Tue
nonstopFrontier
1h 11mLAS-ONT
$99
4/6Sun
nonstopUnited Airlines
1h 28mONT-SFO
4/23Wed
nonstopUnited Airlines
1h 26mSFO-ONT
$167
4/7Mon
nonstopUnited Airlines
1h 44mONT-SFO
4/9Wed
nonstopUnited Airlines
1h 26mSFO-ONT
$177
4/5Sat
multi-stopSouthwest
7h 05mONT-SFO
4/7Mon
multi-stopSouthwest
5h 25mSFO-ONT
$187
4/3Thu
multi-stopSouthwest
4h 35mONT-SFO
4/6Sun
multi-stopSouthwest
9h 15mSFO-ONT
$192
4/5Sat
multi-stopAmerican Airlines
6h 01mONT-SFO
4/5Sat
multi-stopAmerican Airlines
6h 04mSFO-ONT
$193
4/4Fri
multi-stopAmerican Airlines
6h 09mONT-SFO
4/6Sun
multi-stopAmerican Airlines
6h 14mSFO-ONT
$199
4/3Thu
multi-stopDelta
18h 13mONT-HNL
4/8Tue
multi-stopDelta
9h 31mHNL-ONT
$487
4/4Fri
multi-stopDelta
8h 02mONT-JFK
4/9Wed
multi-stopDelta
8h 26mJFK-ONT
$498

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Book cheap international flights from Ontario

Recent round-trip flight deals

4/20Sun
multi-stop
17h 10mONT-CUN
4/25Fri
multi-stop
28h 32mCUN-ONT
$324
4/19Sat
multi-stop
17h 05mONT-CUN
4/25Fri
multi-stop
28h 32mCUN-ONT
$327
4/29Tue
multi-stopUnited Airlines
8h 12mONT-CUN
5/6Tue
multi-stopUnited Airlines
14h 43mCUN-ONT
$411
4/18Fri
multi-stopFrontier
10h 39mONT-CUN
4/26Sat
multi-stopFrontier
22h 05mCUN-ONT
$416
4/12Sat
multi-stopFrontier
10h 34mONT-CUN
4/14Mon
multi-stopFrontier
8h 48mCUN-ONT
$417
5/20Tue
multi-stopAmerican Airlines
9h 04mONT-CUN
5/24Sat
multi-stopAmerican Airlines
13h 23mCUN-ONT
$442
9/12Fri
multi-stopAmerican Airlines
17h 16mONT-CUN
9/19Fri
multi-stopAmerican Airlines
17h 36mCUN-ONT
$452
4/21Mon
multi-stopDelta
9h 38mONT-CUN
4/24Thu
multi-stopDelta
12h 01mCUN-ONT
$465
4/16Wed
multi-stopDelta
7h 20mONT-CUN
4/23Wed
multi-stopDelta
9h 21mCUN-ONT
$490
9/12Fri
multi-stopUnited Airlines
13h 28mONT-CUN
9/19Fri
multi-stopUnited Airlines
17h 02mCUN-ONT
$498

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Search by price

Recent one-way flight deals

5/5Mon
multi-stopFrontier
11h 11mONT-CUN
$137
5/4Sun
multi-stopFrontier
11h 52mONT-CUN
$141
4/29Tue
multi-stopAmerican Airlines
8h 04mONT-CUN
$184
5/6Tue
multi-stopAlaska Airlines
26h 33mONT-CUN
$201
5/2Fri
multi-stopAlaska Airlines
19h 55mONT-CUN
$220
9/13Sat
multi-stopUnited Airlines
18h 02mONT-CUN
$233
8/18Mon
multi-stopUnited Airlines
24h 53mONT-CUN
$245
8/4Mon
multi-stopAmerican Airlines
10h 20mONT-CUN
$252
5/9Fri
multi-stopDelta
44h 40mONT-DEL
$486
5/15Thu
multi-stopDelta
64h 30mONT-DEL
$498

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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.