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Cheap flights from Monterey to Los Angeles from $269

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Monterey to Los Angeles departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Monterey to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:36 pm - 8:01 pmMRY  Monterey Regional-ONT Ontario
4h 25m1 stop San Francisco
United Airlines Logo
6:08 am - 10:15 amONT  Ontario-MRY Monterey Regional
4h 07m1 stop San Francisco
$289United Airlines
Sat, Sep 5 - Sun, Sep 6
United Airlines Logo
11:59 am - 3:22 pmMRY  Monterey Regional-ONT Ontario
3h 23m1 stop San Francisco
United Airlines Logo
9:25 am - 2:56 pmONT  Ontario-MRY Monterey Regional
5h 31m1 stop San Francisco
$289United Airlines
Thu, Oct 8 - Sun, Oct 11
United Airlines Logo
3:36 pm - 8:01 pmMRY  Monterey Regional-ONT Ontario
4h 25m1 stop San Francisco
United Airlines Logo
1:56 pm - 5:16 pmONT  Ontario-MRY Monterey Regional
3h 20m1 stop San Francisco
$289United Airlines
Fri, Sep 18 - Mon, Sep 21
United Airlines Logo
6:45 pm - 10:51 pmMRY  Monterey Regional-ONT Ontario
4h 06m1 stop San Francisco
United Airlines Logo
1:56 pm - 5:16 pmONT  Ontario-MRY Monterey Regional
3h 20m1 stop San Francisco
$289United Airlines
Fri, Sep 18 - Sat, Sep 19
United Airlines Logo
6:45 pm - 10:59 pmMRY  Monterey Regional-ONT Ontario
4h 14m1 stop San Francisco
United Airlines Logo
9:01 am - 3:01 pmONT  Ontario-MRY Monterey Regional
6h 00m1 stop San Francisco
$289United Airlines
Thu, Sep 3 - Sun, Sep 6
United Airlines Logo
3:36 pm - 8:01 pmMRY  Monterey Regional-ONT Ontario
4h 25m1 stop San Francisco
United Airlines Logo
6:08 am - 10:15 amONT  Ontario-MRY Monterey Regional
4h 07m1 stop San Francisco
$289United Airlines
Fri, Sep 11 - Sun, Sep 13
United Airlines Logo
3:38 pm - 8:01 pmMRY  Monterey Regional-ONT Ontario
4h 23m1 stop San Francisco
United Airlines Logo
1:18 pm - 9:10 pmONT  Ontario-MRY Monterey Regional
7h 52m1 stop Denver Intl
$359United Airlines
Sat, Sep 19 - Tue, Sep 22
United Airlines Logo
2:27 pm - 5:46 pmMRY  Monterey Regional-ONT Ontario
3h 19m1 stop San Francisco
United Airlines Logo
6:00 am - 10:55 amONT  Ontario-MRY Monterey Regional
4h 55m1 stop San Francisco
$359United Airlines
Sat, Oct 24 - Sun, Oct 25
Alaska Airlines Logo
6:00 am - 10:39 pmMRY  Monterey Regional-ONT Ontario
16h 39m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 11:28 pmONT  Ontario-MRY Monterey Regional
17h 28m2 stops Seattle/Tacoma Intl San Diego
$579Alaska Airlines
Wed, Jan 27 - Sat, Jan 30
Alaska Airlines Logo
6:23 pm - 11:16 amMRY  Monterey Regional-ONT Ontario
16h 53m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:27 pm - 2:06 pmONT  Ontario-MRY Monterey Regional
21h 39m2 stops Santa Rosa Sonoma County San Diego
$580Alaska Airlines
Fri, Sep 11 - Fri, Sep 18

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United Airlines flights from Monterey to Ontario

Our best United Airlines deals on Monterey to Ontario flight tickets
United Airlines
Sep 18
MRY3:36 pmMonterey Regional
4h 25m
1 stop
ONT8:01 pmOntario
Sep 21
ONT1:56 pmOntario
3h 20m
1 stop
MRY5:16 pmMonterey Regional
$289
United Airlines
Sep 4
MRY6:45 pmMonterey Regional
4h 14m
1 stop
ONT10:59 pmOntario
Sep 6
ONT9:01 amOntario
6h 00m
1 stop
MRY3:01 pmMonterey Regional
$359
United Airlines
Sep 3
MRY6:45 pmMonterey Regional
4h 14m
1 stop
ONT10:59 pmOntario
Sep 6
ONT9:01 amOntario
6h 00m
1 stop
MRY3:01 pmMonterey Regional
$360

Alaska Airlines flights from Monterey to Ontario

Our best Alaska Airlines deals on Monterey to Ontario flight tickets
Alaska Airlines
Jan 27
MRY6:00 amMonterey Regional
16h 39m
2 stops
ONT10:39 pmOntario
Jan 30
ONT6:00 amOntario
17h 28m
2 stops
MRY11:28 pmMonterey Regional
$579
Alaska Airlines
Sep 11
MRY6:23 pmMonterey Regional
16h 53m
1 stop
ONT11:16 amOntario
Sep 18
ONT4:27 pmOntario
21h 39m
2 stops
MRY2:06 pmMonterey Regional
$580
Alaska Airlines
Sep 19
MRY6:23 pmMonterey Regional
16h 53m
1 stop
ONT11:16 amOntario
Sep 22
ONT12:12 pmOntario
11h 47m
2 stops
MRY11:59 pmMonterey Regional
$589

momondo Fare Finder

 
Customize your flight search to find flights from Monterey to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 16, 2026.
Use the filters below to find and compare flights from Monterey to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Sat 9/5

3:36 pm-8:01 pm

1 stop4h 25m

Ontario

Sun 9/6

6:08 am-10:15 am

1 stop4h 07m

$289

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Thu 10/8

11:59 am-3:22 pm

1 stop3h 23m

Ontario

Sun 10/11

9:25 am-2:56 pm

1 stop5h 31m

$289

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Fri 9/18

3:36 pm-8:01 pm

1 stop4h 25m

Ontario

Mon 9/21

1:56 pm-5:16 pm

1 stop3h 20m

$289
Quickest round-trip

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Fri 9/18

6:45 pm-10:51 pm

1 stop4h 06m

Ontario

Sat 9/19

1:56 pm-5:16 pm

1 stop3h 20m

$289

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Thu 9/3

6:45 pm-10:59 pm

1 stop4h 14m

Ontario

Sun 9/6

9:01 am-3:01 pm

1 stop6h 00m

$289

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Fri 9/11

3:36 pm-8:01 pm

1 stop4h 25m

Ontario

Sun 9/13

6:08 am-10:15 am

1 stop4h 07m

$289

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Sat 9/19

3:38 pm-8:01 pm

1 stop4h 23m

Ontario

Tue 9/22

1:18 pm-9:10 pm

1 stop7h 52m

$359

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Sat 10/24

2:27 pm-5:46 pm

1 stop3h 19m

Ontario

Sun 10/25

6:00 am-10:55 am

1 stop4h 55m

$359

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Wed 1/27

6:00 am-10:39 pm

2 stops16h 39m

Ontario

Sat 1/30

6:00 am-11:28 pm

2 stops17h 28m

$579

MontereyOntario

MRY Monterey Regional - ONT Ontario

MRYONT

Monterey Regional

Fri 9/11

6:23 pm-11:16 am

1 stop16h 53m

Ontario

Fri 9/18

4:27 pm-2:06 pm

2 stops21h 39m

$580

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Monterey to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Monday when prices can be found for as low as $169. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Monterey to Ontario for around $250.

What is the cheapest time of day to depart on your flight to Ontario?

In the evening is the cheapest time of day to fly from Monterey to Ontario when you can find flight prices for as low as $168. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $256 on average. Flights to Ontario from Monterey in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Monterey to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Monterey to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Monterey to Ontario (MRY to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Monterey to Ontario

Fastest flight time

4h 06m

Direct flights

None
The fastest flight from Monterey to Ontario takes 4h 06m
There are no direct flights from Monterey to Ontario. There are no popular flight routes from Monterey to Ontario.
Search flight deals

Frequently asked questions about flying from Monterey to Ontario

  • How far is Monterey Regional to Ontario by plane?

    A flight from Monterey Regional to Ontario will travel around 296.3 mi. In terms of flight time, this usually takes a little over 4h 06m.

  • When did momondo last update prices for flights from Monterey Regional Airport to Ontario Airport?

    Prices for flights from Monterey Regional Airport to Ontario Airport refresh daily.

  • How many operators does momondo search for flights from Monterey Regional Airport to Ontario Airport?

  • How old do you have to be to fly from Monterey Regional Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Monterey Regional Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Monterey to Ontario?

Best airlines flying from Monterey to Ontario

Compare and see reviews for airlines that fly from Monterey to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $239Free CancellationRating
7.4
10,105 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Monterey to Ontario?

It is quick and easy to find Monterey to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

Can I find flights from Monterey to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Monterey to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Monterey to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Monterey to Ontario.

I’m not ready to book a flight from Monterey to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Monterey to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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