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Cheap flights from Maine to Los Angeles from $133

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 9/2. 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 Maine to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
2:49 pm - 10:35 pm
PWM
-
ONT
10h 46m
1 stop
JetBlue Logo
11:50 pm - 12:21 pm
ONT
-
PWM
9h 31m
1 stop
$275JetBlue
Fri, Aug 21 - Mon, Aug 24
JetBlue Logo
2:40 pm - 10:35 pm
PWM
-
ONT
10h 55m
1 stop
JetBlue Logo
11:50 pm - 1:45 pm
ONT
-
PWM
10h 55m
1 stop
$296JetBlue
Thu, Aug 20 - Sun, Aug 23
American Airlines Logo
8:00 am - 1:31 pm
PWM
-
ONT
8h 31m
1 stop
American Airlines Logo
7:05 am - 10:00 pm
ONT
-
PWM
11h 55m
2 stops
$302American Airlines
Thu, Aug 27 - Sat, Aug 29
JetBlue Logo
1:17 pm - 10:35 pm
PWM
-
ONT
12h 18m
1 stop
JetBlue Logo
11:24 pm - 12:21 pm
ONT
-
PWM
9h 57m
1 stop
$306JetBlue
Tue, Sep 1 - Sat, Sep 5
American Airlines Logo
7:05 am - 6:15 pm
PWM
-
ONT
14h 10m
2 stops
American Airlines Logo
6:15 am - 10:00 pm
ONT
-
PWM
12h 45m
2 stops
$307American Airlines
Thu, Aug 27 - Sat, Aug 29
Southwest Logo
7:05 am - 2:25 pm
BOS
-
ONT
10h 20m
2 stops
Southwest Logo
11:55 pm - 11:55 am
ONT
-
BOS
9h 00m
1 stop
$378Southwest
Wed, Dec 2 - Sun, Dec 6
Southwest Logo
9:25 am - 4:05 pm
BOS
-
ONT
9h 40m
2 stops
Southwest Logo
8:35 am - 9:25 pm
ONT
-
BOS
9h 50m
2 stops
$379Southwest
Wed, Aug 19 - Wed, Aug 26
Delta Logo
12:59 pm - 10:14 pm
BGR
-
ONT
12h 15m
2 stops
Delta Logo
7:00 am - 11:23 pm
ONT
-
BGR
13h 23m
2 stops
$379Delta
Fri, Nov 6 - Fri, Nov 13
Alaska Airlines Logo
7:00 am - 6:03 pm
BOS
-
ONT
14h 03m
1 stop
Alaska Airlines Logo
11:13 am - 11:54 pm
ONT
-
BOS
9h 41m
1 stop
$381Alaska Airlines
Wed, Oct 21 - Tue, Oct 27
Delta Logo
6:05 am - 12:16 pm
BOS
-
ONT
9h 11m
1 stop
Delta Logo
5:05 pm - 6:30 am
ONT
-
BOS
10h 25m
1 stop
$383Delta
Tue, Aug 11 - Sat, Aug 29

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JetBlue flights from Maine to Ontario

Our best JetBlue deals on Maine to Ontario flight tickets
JetBlue
Aug 21
PWM2:49 pmPortland
10h 46m
1 stop
ONT10:35 pmOntario
Aug 24
ONT11:50 pmOntario
9h 31m
1 stop
PWM12:21 pmPortland
$275
JetBlue
Aug 20
PWM2:40 pmPortland
10h 55m
1 stop
ONT10:35 pmOntario
Aug 23
ONT11:50 pmOntario
10h 55m
1 stop
PWM1:45 pmPortland
$296
JetBlue
Sep 1
PWM1:17 pmPortland
12h 18m
1 stop
ONT10:35 pmOntario
Sep 5
ONT11:24 pmOntario
9h 57m
1 stop
PWM12:21 pmPortland
$306

Southwest flights from Maine to Ontario

Our best Southwest deals on Maine to Ontario flight tickets
Southwest
Dec 2
BOS7:05 amBoston Logan Intl
10h 20m
2 stops
ONT2:25 pmOntario
Dec 6
ONT11:55 pmOntario
9h 00m
1 stop
BOS11:55 amBoston Logan Intl
$378
Southwest
Aug 19
BOS9:25 amBoston Logan Intl
9h 40m
2 stops
ONT4:05 pmOntario
Aug 26
ONT8:35 amOntario
9h 50m
2 stops
BOS9:25 pmBoston Logan Intl
$379
Southwest
Oct 22
BOS3:50 pmBoston Logan Intl
9h 45m
2 stops
ONT10:35 pmOntario
Oct 26
ONT11:55 pmOntario
8h 40m
1 stop
BOS11:35 amBoston Logan Intl
$382

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 June 20, 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

Cheapest round-trip

PortlandOntario

PWM - ONT

PWMONT

Portland

Fri 8/21

2:49 pm-10:35 pm

1 stop10h 46m

Ontario

Mon 8/24

11:50 pm-12:21 pm

1 stop9h 31m

$275

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 8/20

2:40 pm-10:35 pm

1 stop10h 55m

Ontario

Sun 8/23

11:50 pm-1:45 pm

1 stop10h 55m

$296

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 8/27

8:00 am-1:31 pm

1 stop8h 31m

Ontario

Sat 8/29

7:05 am-10:00 pm

2 stops11h 55m

$302

PortlandOntario

PWM - ONT

PWMONT

Portland

Tue 9/1

1:17 pm-10:35 pm

1 stop12h 18m

Ontario

Sat 9/5

11:24 pm-12:21 pm

1 stop9h 57m

$306

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 8/27

7:05 am-6:15 pm

2 stops14h 10m

Ontario

Sat 8/29

6:15 am-10:00 pm

2 stops12h 45m

$307
Quickest round-trip

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 12/2

7:05 am-2:25 pm

2 stops10h 20m

Ontario

Sun 12/6

11:55 pm-11:55 am

1 stop9h 00m

$378

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 8/19

9:25 am-4:05 pm

2 stops9h 40m

Ontario

Wed 8/26

8:35 am-9:25 pm

2 stops9h 50m

$379

BangorOntario

BGR - ONT

BGRONT

Bangor

Fri 11/6

12:59 pm-10:14 pm

2 stops12h 15m

Ontario

Fri 11/13

7:00 am-11:23 pm

2 stops13h 23m

$379

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 10/21

7:00 am-6:03 pm

1 stop14h 03m

Ontario

Tue 10/27

11:13 am-11:54 pm

1 stop9h 41m

$381

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 8/11

6:05 am-12:16 pm

1 stop9h 11m

Ontario

Sat 8/29

5:05 pm-6:30 am

1 stop10h 25m

$383

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 29% 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

8h 16m

Direct flights

None
The fastest flight from Maine to Ontario takes 8h 16m
There are no direct flights from Maine to Ontario. There are no popular flight routes from Maine to Ontario.
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Frequently asked questions about flying from Maine to Ontario

  • 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
American AirlinesPriceFrom $399Free CancellationRating
7.1
11,715 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.

An easier way to manage your Ontario trip

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