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Cheap flights from Ontario to Maine from $114

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Maine departing on 8/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Maine

Cheap round-trip flights

JetBlue Logo
10:56 pm - 9:34 amONT-BOS
7h 38m1 stop
JetBlue Logo
2:45 pm - 9:29 pmBOS-ONT
9h 44m1 stop
$266JetBlue
Find Deal
Sat, Sep 6 - Tue, Sep 16
American Airlines Logo
7:32 pm - 6:13 amONT-BOS
7h 41m1 stop
American Airlines Logo
2:38 pm - 10:33 pmBOS-ONT
10h 55m1 stop
$273American Airlines
Find Deal
Sun, Aug 31 - Thu, Sep 4
American Airlines Logo
8:15 am - 9:53 pmONT-BOS
10h 38m1 stop
American Airlines Logo
2:05 pm - 9:24 pmBOS-ONT
10h 19m1 stop
$277American Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9
JetBlue Logo
10:56 pm - 11:45 amONT-BOS
9h 49m1 stop
JetBlue Logo
12:20 pm - 9:29 pmBOS-ONT
12h 09m1 stop
$291JetBlue
Find Deal
Wed, Sep 10 - Tue, Sep 16
Delta Logo
11:45 am - 1:24 amONT-BOS
10h 39m1 stop
Delta Logo
1:35 pm - 7:11 pmBOS-ONT
8h 36m1 stop
$295Delta
Find Deal
Thu, Sep 4 - Wed, Sep 10
Delta Logo
11:45 am - 1:24 amONT-BOS
10h 39m1 stop
Delta Logo
5:35 am - 10:35 amBOS-ONT
8h 00m1 stop
$296Delta
Find Deal
Thu, Sep 4 - Wed, Sep 10
United Airlines Logo
7:00 am - 5:46 pmONT-BOS
7h 46m1 stop
United Airlines Logo
9:30 am - 5:37 pmBOS-ONT
11h 07m2 stops
$309United Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6
Southwest Logo
10:35 am - 10:35 pmONT-BOS
9h 00m1 stop
Southwest Logo
8:00 am - 3:45 pmBOS-ONT
10h 45m1 stop
$318Southwest
Find Deal
Fri, Aug 15 - Sat, Aug 23
Southwest Logo
10:35 am - 10:35 pmONT-BOS
9h 00m1 stop
Southwest Logo
9:25 am - 6:25 pmBOS-ONT
12h 00m2 stops
$321Southwest
Find Deal
Fri, Sep 5 - Wed, Sep 10
United Airlines Logo
7:00 am - 5:42 pmONT-PWM
7h 42m1 stop
United Airlines Logo
5:02 pm - 10:30 pmPWM-ONT
8h 28m1 stop
$344United Airlines
Find Deal
Tue, Aug 19 - Sat, Aug 30

Delta flights from Ontario to Maine

Our best Delta deals on Ontario to Maine flight tickets
Delta
Sep 4
ONT11:45 amOntario
10h 39m
1 stop
BOS1:24 amBoston Logan Intl
Sep 10
BOS1:35 pmBoston Logan Intl
8h 36m
1 stop
ONT7:11 pmOntario
$295
Find similar
Delta
Sep 4
ONT11:45 amOntario
10h 39m
1 stop
BOS1:24 amBoston Logan Intl
Sep 10
BOS5:35 amBoston Logan Intl
8h 00m
1 stop
ONT10:35 amOntario
$296
Find similar
Delta
Sep 10
ONT7:05 amOntario
8h 26m
1 stop
BOS6:31 pmBoston Logan Intl
Sep 17
BOS6:10 amBoston Logan Intl
9h 07m
1 stop
ONT12:17 pmOntario
$297
Find similar

JetBlue flights from Ontario to Maine

Our best JetBlue deals on Ontario to Maine flight tickets
JetBlue
Sep 6
ONT10:56 pmOntario
7h 38m
1 stop
BOS9:34 amBoston Logan Intl
Sep 16
BOS2:45 pmBoston Logan Intl
9h 44m
1 stop
ONT9:29 pmOntario
$266
Find similar
JetBlue
Sep 10
ONT10:56 pmOntario
9h 49m
1 stop
BOS11:45 amBoston Logan Intl
Sep 16
BOS12:20 pmBoston Logan Intl
12h 09m
1 stop
ONT9:29 pmOntario
$291
Find similar
JetBlue
Sep 17
ONT10:56 pmOntario
9h 49m
1 stop
BOS11:45 amBoston Logan Intl
Sep 18
BOS2:45 pmBoston Logan Intl
9h 44m
1 stop
ONT9:29 pmOntario
$305
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Maine 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 July 31, 2025.
Use the filters below to find and compare flights from Ontario to Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 9/6

10:56 pm-9:34 am

1 stop7h 38m

Boston Logan Intl

Tue 9/16

2:45 pm-9:29 pm

1 stop9h 44m

$266

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sun 8/31

7:32 pm-6:13 am

1 stop7h 41m

Boston Logan Intl

Thu 9/4

2:38 pm-10:33 pm

1 stop10h 55m

$273

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 9/3

8:15 am-9:53 pm

1 stop10h 38m

Boston Logan Intl

Tue 9/9

2:05 pm-9:24 pm

1 stop10h 19m

$277

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 9/10

10:56 pm-11:45 am

1 stop9h 49m

Boston Logan Intl

Tue 9/16

12:20 pm-9:29 pm

1 stop12h 09m

$291

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 9/4

11:45 am-1:24 am

1 stop10h 39m

Boston Logan Intl

Wed 9/10

1:35 pm-7:11 pm

1 stop8h 36m

$295

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 9/4

11:45 am-1:24 am

1 stop10h 39m

Boston Logan Intl

Wed 9/10

5:35 am-10:35 am

1 stop8h 00m

$296

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 8/30

7:00 am-5:46 pm

1 stop7h 46m

Boston Logan Intl

Sat 9/6

9:30 am-5:37 pm

2 stops11h 07m

$309

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 8/15

10:35 am-10:35 pm

1 stop9h 00m

Boston Logan Intl

Sat 8/23

8:00 am-3:45 pm

1 stop10h 45m

$318

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 9/5

10:35 am-10:35 pm

1 stop9h 00m

Boston Logan Intl

Wed 9/10

9:25 am-6:25 pm

2 stops12h 00m

$321

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Tue 8/19

7:00 am-5:42 pm

1 stop7h 42m

Portland

Sat 8/30

5:02 pm-10:30 pm

1 stop8h 28m

$344

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 Maine from

How to get the cheapest flight ticket from Ontario to Maine

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 month to fly to Maine?

The cheapest month to fly to Maine from Ontario is in January. Flight prices, which tend to average around $246, are often lower during this time because this is during the off-season. If you aren’t able to travel to Maine during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $332.

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

The cheapest day to depart from Ontario to Maine is on a Thursday. Travelers who choose to depart for Maine on a Thursday will often find tickets for as low as $451. Flights from Ontario to Maine on a Sunday will generally be more expensive and average around $989. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Maine is in the evening when flights can be purchased for as low as $439. Flights in the morning are often more expensive with an average ticket price of $683.

Can stopping save me money on Ontario to Maine flights?

You could potentially save up to 1% on your flight if you consider stops on a Ontario to Maine flight.

Cheap Ontario to Maine flight deals and tips

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

Best Price Found

$114

Fastest flight time

7h 15m

Direct flights

None

Airports in Maine

3 airports
The best one-way flight to Maine from Ontario in the past 72 hours is $114. The best round-trip flight deal from Ontario to Maine found on momondo in the last 72 hours is $266.
The fastest flight from Ontario to Maine takes 7h 15m
There are no direct flights from Ontario to Maine. Popular non-direct routes for this connection are Ontario Airport - Boston Logan Intl Airport, Ontario Airport - Bangor Airport and Ontario Airport - Portland Airport.
There are 3 airports near Maine: Boston Logan Intl (BOS), Portland (PWM), Bangor (BGR)
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  • When did momondo last update prices for flights from Ontario Airport to Maine?

    Prices for flights from Ontario Airport to Maine were last updated today.

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

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

    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 Ontario Airport to Maine.

  • What documentation or ID do you need to fly to Maine?

    The travel and health documents required for your trip to Maine can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Maine. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Maine

Compare and see reviews for airlines that fly from Ontario to Maine with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $259Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
DeltaPriceFrom $287Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $300Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $356Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
SouthwestPriceFrom $523Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Maine for you.

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

All flight searches from Ontario to Maine on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Maine from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Ontario to Maine flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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