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MRY - ONT

$238 Find cheap flights from Monterey to 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 Monterey to Ontario departing on 10/28. 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
0 bags
qua 7/10
qua 7/17

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Monterey to Ontario, 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 Monterey to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Cheap flight deals from Monterey to Ontario (MRY-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Monterey to 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:45 am - 12:17 pmMRY-ONT
4h 32m1 stop
1:30 pm - 11:46 pmONT-MRY
10h 16m1 stop
$358United Airlines
Find Deal
seg, jul 8 - seg, jul 15
7:06 am - 10:45 pmMRY-ONT
15h 39m1 stop
6:35 pm - 11:46 pmONT-MRY
5h 11m1 stop
$368United Airlines
Find Deal
sáb, jun 29 - ter, jul 2
8:30 am - 1:07 pmMRY-ONT
4h 37m1 stop
6:35 pm - 11:30 pmONT-MRY
4h 55m1 stop
$382United Airlines
Find Deal
qui, out 3 - sáb, out 5
5:10 am - 10:45 pmMRY-ONT
17h 35m2 stops
6:35 pm - 11:46 pmONT-MRY
5h 11m1 stop
$437United Airlines
Find Deal
sáb, jun 29 - ter, jul 2
7:06 am - 10:45 pmMRY-ONT
15h 39m1 stop
1:45 pm - 11:46 pmONT-MRY
10h 01m1 stop
$447United Airlines
Find Deal
sex, jun 28 - qui, jul 25
7:45 am - 10:45 pmMRY-ONT
15h 00m1 stop
1:30 pm - 11:46 pmONT-MRY
10h 16m1 stop
$454United Airlines
Find Deal
sex, jul 12 - seg, jul 15
7:45 am - 10:45 pmMRY-ONT
15h 00m1 stop
1:30 pm - 11:46 pmONT-MRY
10h 16m1 stop
$455United Airlines
Find Deal
sex, ago 2 - seg, ago 5
3:23 pm - 9:05 amMRY-ONT
17h 42m2 stops
7:55 pm - 1:26 pmONT-MRY
17h 31m2 stops
$551Alaska Airlines
Find Deal
seg, jul 8 - seg, jul 15
12:55 pm - 6:22 pmMRY-ONT
5h 27m1 stop
4:31 pm - 10:31 pmONT-MRY
6h 00m1 stop
$955American Airlines
Find Deal
sáb, jul 13 - qua, jul 17
4:06 pm - 9:40 pmMRY-ONT
5h 34m1 stop
9:24 am - 6:37 pmONT-MRY
9h 13m1 stop
$985American Airlines
Find Deal
dom, jun 23 - seg, jun 24

Flights from Monterey to Ontario - Travel Insights & Trends

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

What is the cheapest month to fly from Monterey to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Monterey to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Monterey to Ontario is April, where tickets cost $114 on average. On the other hand, the most expensive months are January and February, where the average cost of tickets is $230 and $188 respectively.

How far in advance should I book a flight from Monterey to Ontario?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Monterey to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Monterey to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 53 days before departure.

Which airlines provide the cheapest flights from Monterey to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Alaska Airlines offered the best one-way deal for that route, at $238. KAYAK users also found Monterey to Ontario round-trip flights on United Airlines from $358 and on Alaska Airlines from $551.

Good to know

Cheapest flight

$238
Flight from Monterey to Ontario

When to book flights from Monterey to Ontario

Are your dates flexible? Find out the best times to travel from Monterey to Ontario 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 Monterey to Ontario

  • What is the cheapest flight from Monterey to Ontario?

    In the last 3 days, the lowest price for a flight from Monterey to Ontario was $238 for a one-way ticket and $358 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Monterey to Ontario?

    Monterey and Ontario are both served by 1 main airport. You will leave Monterey from Monterey Regional and will be arriving at Ontario.

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

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

  • Which airline alliances offer flights from Monterey to Ontario?

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

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Monterey 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 Monterey to 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 Ontario with an airline and back to Monterey with another airline. Booking your flights between Monterey and ONT 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 Monterey to 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 to Ontario from Monterey 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 Monterey to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Monterey to Ontario. 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 Monterey to Ontario? 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 10647 reviews
7.1Entertainment
7.2Comfort
7.7Boarding
6.7Food
8.1Crew
Airline reviews

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

8.0 ExcellentSardar, Jun 2024IAH - SJC
Read more about United Airlines reviews

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Book cheap flights from Monterey to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Monterey to Ontario found on KAYAK in the last 72 hours.
10/28seg
2 stopsAlaska Airlines
16h 50mMRY-ONT
$238
7/30ter
1 stopUnited Airlines
8h 03mMRY-ONT
$242
7/6sáb
1 stopUnited Airlines
4h 30mMRY-ONT
$243
7/9ter
2 stopsAlaska Airlines
17h 59mMRY-ONT
$252
7/8seg
1 stopUnited Airlines
4h 32mMRY-ONT
$298
7/15seg
2 stopsAlaska Airlines
17h 59mMRY-ONT
$315
6/26qua
1 stopUnited Airlines
7h 28mMRY-ONT
$324
6/23dom
1 stopUnited Airlines
7h 28mMRY-ONT
$334
6/22sáb
1 stopAmerican Airlines
29h 34mMRY-ONT
$370
7/31qua
1 stopAmerican Airlines
12h 12mMRY-ONT
$468

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Last minute flights from Monterey to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Monterey to Ontario that are departing in the next 10 days.
6/15sáb
multi-stopUnited Airlines
16h 22mMRY-ONT
6/19qua
multi-stopUnited Airlines
17h 24mONT-MRY
$582
6/15sáb
multi-stopUnited Airlines
16h 22mMRY-ONT
6/19qua
multi-stopUnited Airlines
18h 29mONT-MRY
$636
6/14sex
multi-stopUnited Airlines
16h 22mMRY-ONT
6/20qui
multi-stopUnited Airlines
9h 49mONT-MRY
$848
6/14sex
multi-stopAlaska Airlines
9h 56mMRY-ONT
6/17seg
multi-stopAlaska Airlines
7h 26mONT-MRY
$1,302
6/15sáb
multi-stopAlaska Airlines
13h 31mMRY-ONT
6/19qua
multi-stopAlaska Airlines
11h 56mONT-MRY
$1,449

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Monterey - Ontario Flights

Departure:

Monterey (MRY)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Monterey

Cabin classes: