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Cheap flights from Maine to Los Angeles from $124

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to Los Angeles departing on 4/29. 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
0 bags

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Find the cheapest flights from Maine to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:30 am - 12:20 pm
BOS
-
ONT
9h 50m
1 stop
United Airlines Logo
6:49 pm - 8:24 am
ONT
-
BOS
10h 35m
1 stop
$254United Airlines
Wed, Apr 1 - Sat, Apr 11
Alaska Airlines Logo
7:00 am - 3:08 pm
BOS
-
ONT
11h 08m
1 stop
Alaska Airlines Logo
4:02 pm - 6:54 am
ONT
-
BOS
11h 52m
1 stop
$258Alaska Airlines
Mon, Mar 2 - Tue, Mar 10
Alaska Airlines Logo
7:00 am - 3:08 pm
BOS
-
ONT
11h 08m
1 stop
Alaska Airlines Logo
4:02 pm - 6:54 am
ONT
-
BOS
11h 52m
1 stop
$259Alaska Airlines
Wed, Mar 11 - Tue, Mar 17
American Airlines Logo
2:40 pm - 10:07 pm
BOS
-
ONT
10h 27m
2 stops
American Airlines Logo
10:36 pm - 10:05 am
ONT
-
BOS
8h 29m
1 stop
$264American Airlines
Tue, Mar 17 - Tue, Mar 24
American Airlines Logo
2:40 pm - 10:07 pm
BOS
-
ONT
10h 27m
2 stops
American Airlines Logo
11:58 pm - 12:16 pm
ONT
-
BOS
9h 18m
2 stops
$269American Airlines
Tue, Mar 17 - Tue, Mar 24
Alaska Airlines Logo
4:36 pm - 11:52 pm
BOS
-
ONT
10h 16m
1 stop
Alaska Airlines Logo
12:02 pm - 11:59 pm
ONT
-
BOS
8h 57m
1 stop
$276Alaska Airlines
Wed, Mar 11 - Tue, Mar 17
Delta Logo
7:10 am - 5:13 pm
BOS
-
ONT
13h 03m
1 stop
Delta Logo
5:53 pm - 6:50 am
ONT
-
BOS
9h 57m
1 stop
$283Delta
Thu, Mar 26 - Tue, Mar 31
JetBlue Logo
2:18 pm - 10:09 pm
PWM
-
ONT
10h 51m
1 stop
JetBlue Logo
11:25 pm - 1:23 pm
ONT
-
PWM
10h 58m
1 stop
$303JetBlue
Tue, May 26 - Fri, May 29
Southwest Logo
5:30 am - 3:10 pm
PWM
-
ONT
12h 40m
1 stop
Southwest Logo
8:10 am - 11:25 pm
ONT
-
PWM
12h 15m
2 stops
$410Southwest
Sun, May 3 - Fri, May 8
Southwest Logo
5:30 am - 3:20 pm
PWM
-
ONT
12h 50m
2 stops
Southwest Logo
8:10 am - 11:25 pm
ONT
-
PWM
12h 15m
2 stops
$433Southwest
Sun, May 3 - Fri, May 8

Alaska Airlines flights from Maine to Ontario

Our best Alaska Airlines deals on Maine to Ontario flight tickets
Alaska Airlines
Mar 2
BOS7:00 amBoston Logan Intl
11h 08m
1 stop
ONT3:08 pmOntario
Mar 10
ONT4:02 pmOntario
11h 52m
1 stop
BOS6:54 amBoston Logan Intl
$258
Alaska Airlines
Mar 11
BOS7:00 amBoston Logan Intl
11h 08m
1 stop
ONT3:08 pmOntario
Mar 17
ONT4:02 pmOntario
11h 52m
1 stop
BOS6:54 amBoston Logan Intl
$259
Alaska Airlines
Mar 2
BOS7:00 amBoston Logan Intl
11h 08m
1 stop
ONT3:08 pmOntario
Mar 10
ONT4:02 pmOntario
11h 52m
1 stop
BOS6:54 amBoston Logan Intl
$264

Delta flights from Maine to Ontario

Our best Delta deals on Maine to Ontario flight tickets
Delta
Mar 26
BOS7:10 amBoston Logan Intl
13h 03m
1 stop
ONT5:13 pmOntario
Mar 31
ONT5:53 pmOntario
9h 57m
1 stop
BOS6:50 amBoston Logan Intl
$283
Delta
Mar 16
BOS6:44 pmBoston Logan Intl
8h 07m
1 stop
ONT11:51 pmOntario
Apr 10
ONT1:20 pmOntario
7h 39m
1 stop
BOS11:59 pmBoston Logan Intl
$297
Delta
Apr 25
BOS12:45 pmBoston Logan Intl
8h 48m
1 stop
ONT6:33 pmOntario
Apr 30
ONT2:20 pmOntario
30h 39m
1 stop
BOS11:59 pmBoston Logan Intl
$300

momondo Fare Finder

 
Customize your flight search to find flights from Maine 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 February 19, 2026.
Use the filters below to find and compare flights from Maine to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 4/1

5:30 am-12:20 pm

1 stop9h 50m

Ontario

Sat 4/11

6:49 pm-8:24 am

1 stop10h 35m

$254

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 3/2

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Tue 3/10

4:02 pm-6:54 am

1 stop11h 52m

$258

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 3/11

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Tue 3/17

4:02 pm-6:54 am

1 stop11h 52m

$259

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 3/17

2:40 pm-10:07 pm

2 stops10h 27m

Ontario

Tue 3/24

10:36 pm-10:05 am

1 stop8h 29m

$264

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 3/17

2:40 pm-10:07 pm

2 stops10h 27m

Ontario

Tue 3/24

11:58 pm-12:16 pm

2 stops9h 18m

$269

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 3/11

4:36 pm-11:52 pm

1 stop10h 16m

Ontario

Tue 3/17

12:02 pm-11:59 pm

1 stop8h 57m

$276

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 3/26

7:10 am-5:13 pm

1 stop13h 03m

Ontario

Tue 3/31

5:53 pm-6:50 am

1 stop9h 57m

$283

PortlandOntario

PWM - ONT

PWMONT

Portland

Tue 5/26

2:18 pm-10:09 pm

1 stop10h 51m

Ontario

Fri 5/29

11:25 pm-1:23 pm

1 stop10h 58m

$303

PortlandOntario

PWM - ONT

PWMONT

Portland

Sun 5/3

5:30 am-3:10 pm

1 stop12h 40m

Ontario

Fri 5/8

8:10 am-11:25 pm

2 stops12h 15m

$410

PortlandOntario

PWM - ONT

PWMONT

Portland

Sun 5/3

5:30 am-3:20 pm

2 stops12h 50m

Ontario

Fri 5/8

8:10 am-11:25 pm

2 stops12h 15m

$433

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 Maine 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

Can stopping save me money on Maine to Ontario flights?

You could potentially save up to 10% on your flight if you consider stops on a Maine to Ontario flight.

Cheap Maine to Ontario flight deals and tips

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

Fastest flight time

7h 43m

Direct flights

None
The fastest flight from Maine to Ontario takes 7h 43m
There are no direct flights from Maine to Ontario. There are no popular flight routes from Maine to Ontario.
Search flight deals

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

    Prices for flights from Maine to Ontario Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Maine 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 Maine to Ontario Airport.

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

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Maine to Ontario

Compare and see reviews for airlines that fly from Maine to Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $259Free CancellationRating
7.9
8,212 reviews
Search Delta flights
American AirlinesPriceFrom $279Free CancellationRating
7.2
11,313 reviews
Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Maine 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 Maine to Ontario with flexible booking policies on momondo?

Flights from Maine to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Maine and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Ontario from Maine. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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