ONT - MRY

$197 Find Cheap Flights from Ontario to Monterey

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 Monterey departing on 5/2. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Monterey

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Monterey, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Monterey, as well as popular online travel agencies
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Cheap Flight Deals from Ontario to Monterey (ONT-MRY)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Monterey 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 flight deals from Ontario to Monterey

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Monterey.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
7:05 am - 10:28 amONT-MRY
3h 23m1 stop
2:35 pm - 8:21 pmMRY-ONT
5h 46m1 stop
$279United Airlines
Find Deal
Fri, Apr 18 - Mon, Apr 21
3:55 pm - 10:29 pmONT-MRY
6h 34m1 stop
2:35 pm - 8:21 pmMRY-ONT
5h 46m1 stop
$289United Airlines
Find Deal
Fri, Apr 11 - Tue, Apr 15
3:55 pm - 10:29 pmONT-MRY
6h 34m1 stop
2:35 pm - 8:21 pmMRY-ONT
5h 46m1 stop
$344United Airlines
Find Deal
Wed, Apr 16 - Sun, Apr 20
7:30 am - 11:31 pmONT-MRY
16h 01m2 stops
6:43 pm - 10:57 amMRY-ONT
16h 14m1 stop
$348Alaska Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 4
6:00 am - 10:28 amONT-MRY
4h 28m1 stop
6:30 am - 12:15 pmMRY-ONT
5h 45m1 stop
$349United Airlines
Find Deal
Mon, Apr 14 - Sun, Apr 20
11:51 am - 6:03 pmONT-MRY
6h 12m1 stop
6:43 pm - 10:57 amMRY-ONT
16h 14m1 stop
$353Alaska Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 4
6:15 am - 6:40 pmONT-MRY
12h 25m1 stop
6:00 am - 9:58 pmMRY-ONT
15h 58m1 stop
$377American Airlines
Find Deal
Tue, Apr 29 - Wed, Apr 30
3:10 pm - 7:59 pmONT-MRY
4h 49m1 stop
6:00 am - 3:50 pmMRY-ONT
9h 50m2 stops
Tue, May 13 - Tue, May 20
6:41 pm - 11:44 pmONT-MRY
5h 03m1 stop
6:00 am - 10:46 pmMRY-ONT
16h 46m2 stops
Sun, Jun 8 - Tue, Jun 10
1:14 pm - 2:20 pmONT-MRY
25h 06m2 stops
6:00 am - 9:57 pmMRY-ONT
15h 57m2 stops
$2,207American Airlines
Find Deal
Sat, May 24 - Mon, May 26

KAYAK's insights & trends for Ontario to Monterey flights

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

Which airlines provide the cheapest flights from Ontario to Monterey?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest round-trip tickets from Ontario to Monterey were found on United Airlines ($279) and Alaska Airlines ($348).

Good to know

Low season

October

High season

August

Cheapest flight

$197
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Ontario to Monterey

When to book flights from Ontario to Monterey

Are your dates flexible? Find out the best times to travel from Ontario to Monterey based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Monterey

  • What is the cheapest flight from Ontario to Monterey?

    In the last 3 days, the lowest price for a flight from Ontario to Monterey was $197 for a one-way ticket and $279 for a round-trip.

  • Do I need a passport to fly between Ontario and Monterey?

    A passport is not required to fly from Ontario to Monterey.

  • Which aircraft models fly most regularly from Ontario to Monterey?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Monterey?

    oneworld, and Star Alliance are the airline alliances operating flights between Ontario and Monterey, with oneworld being the most commonly used for this route.

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

    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 to Monterey.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Monterey 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 to Monterey?

    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 Monterey with an airline and back to Ontario with another airline. Booking your flights between Ontario and MRY can sometimes prove cheaper using this method.

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

    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 to Monterey 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 airline flying from Ontario to Monterey

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Monterey. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Monterey? 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.
7.4
United AirlinesOverall score based on 8603 reviews
8.1Crew
7.3Comfort
7.7Boarding
6.6Food
7.0Entertainment
Airline reviews

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

8.0 ExcellentMaryann, Mar 2025EWR - SFO
Read more United Airlines reviews

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We arrived early and finally made it to our gate almost an hour after.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

Everything good until we waited for jet bridge at SFO. Then pilot gets on speaker & said it won’t reach plane- too short, need to go to different gate. Then 5 min later, adjusted plane/jetbridge & all ok?!?

Everything you need to know for your flight from Ontario to Monterey

Information on your arrival and departure airports

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