What is the cheapest airline that flies from Ontario to Maine?

Delta, JetBlue, and Southwest are the most popular carriers operating from Ontario to Maine

What airlines fly to Maine?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Maine from Ontario according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Maine. Keep in mind that there are 5 different airlines that fly to Maine on a routine basis, so you have a few additional options to choose from.

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?

As of June 2026, there are 5 operators available to choose from 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.

$124 Cheap Flights from Ontario to Maine in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Maine

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:50 pm - 11:21 am

ONT

BOS

8h 31m

1 stop

2:45 pm - 10:35 pm

BOS

ONT

10h 50m

1 stop

$246JetBlue

Sun, Aug 9 - Tue, Aug 18

11:51 pm - 11:16 am

ONT

BOS

8h 25m

1 stop

4:30 pm - 10:35 pm

BOS

ONT

9h 05m

1 stop

$252JetBlue

Wed, Aug 5 - Wed, Aug 12

11:50 pm - 11:21 am

ONT

BOS

8h 31m

1 stop

4:43 pm - 10:05 pm

BOS

ONT

8h 22m

1 stop

$253JetBlue

Fri, Aug 14 - Sat, Aug 22

11:50 pm - 11:16 am

ONT

BOS

8h 26m

1 stop

4:30 pm - 10:35 pm

BOS

ONT

9h 05m

1 stop

$254JetBlue

Mon, Aug 17 - Thu, Aug 20

12:00 pm - 11:13 pm

ONT

PWM

8h 13m

1 stop

2:14 pm - 9:52 pm

PWM

ONT

10h 38m

1 stop

$328Delta

Wed, Aug 26 - Thu, Sep 3

12:00 pm - 11:13 pm

ONT

PWM

8h 13m

1 stop

12:47 pm - 10:23 pm

PWM

ONT

12h 36m

2 stops

$344Delta

Thu, Aug 27 - Wed, Sep 2

5:00 am - 7:53 pm

ONT

BGR

11h 53m

2 stops

4:15 pm - 10:26 pm

BGR

ONT

9h 11m

1 stop

$484United Airlines

Tue, Oct 27 - Sat, Oct 31

5:00 am - 7:53 pm

ONT

BGR

11h 53m

2 stops

9:15 am - 8:20 pm

BGR

ONT

14h 05m

2 stops

$489United Airlines

Tue, Oct 27 - Sat, Oct 31

8:01 pm - 12:05 pm

ONT

BGR

13h 04m

2 stops

5:45 am - 1:31 pm

BGR

ONT

10h 46m

2 stops

$526American Airlines

Sun, Aug 9 - Thu, Aug 13

1:05 pm - 10:20 am

ONT

BGR

18h 15m

2 stops

5:50 am - 1:25 pm

BGR

ONT

10h 35m

2 stops

$529American Airlines

Mon, Sep 14 - Sat, Sep 19

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Southwest flights from Ontario to Maine

Our best Southwest deals on Ontario to Maine flight tickets

Southwest

Jul 27

ONT2:30 pmOntario

7h 35m

1 stop

BOS1:05 amBoston Logan Intl

Jul 28

BOS5:25 amBoston Logan Intl

9h 40m

1 stop

ONT12:05 pmOntario

$353

Southwest

Aug 12

ONT11:55 pmOntario

9h 35m

2 stops

BOS12:30 pmBoston Logan Intl

Aug 15

BOS5:00 amBoston Logan Intl

12h 30m

1 stop

ONT2:30 pmOntario

$354

Southwest

Oct 28

ONT7:20 pmOntario

9h 40m

2 stops

BOS8:00 amBoston Logan Intl

Nov 1

BOS5:00 amBoston Logan Intl

12h 05m

1 stop

ONT2:05 pmOntario

$359

JetBlue flights from Ontario to Maine

Our best JetBlue deals on Ontario to Maine flight tickets

JetBlue

Aug 9

ONT11:50 pmOntario

8h 31m

1 stop

BOS11:21 amBoston Logan Intl

Aug 18

BOS2:45 pmBoston Logan Intl

10h 50m

1 stop

ONT10:35 pmOntario

$246

JetBlue

Aug 5

ONT11:51 pmOntario

8h 25m

1 stop

BOS11:16 amBoston Logan Intl

Aug 12

BOS4:30 pmBoston Logan Intl

9h 05m

1 stop

ONT10:35 pmOntario

$252

JetBlue

Aug 14

ONT11:50 pmOntario

8h 31m

1 stop

BOS11:21 amBoston Logan Intl

Aug 22

BOS4:43 pmBoston Logan Intl

8h 22m

1 stop

ONT10:05 pmOntario

$253

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sun 8/9

11:50 pm-11:21 am

1 stop8h 31m

Boston Logan Intl

Tue 8/18

2:45 pm-10:35 pm

1 stop10h 50m

$246

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 8/5

11:51 pm-11:16 am

1 stop8h 25m

Boston Logan Intl

Wed 8/12

4:30 pm-10:35 pm

1 stop9h 05m

$252

Quickest round-trip

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 8/14

11:50 pm-11:21 am

1 stop8h 31m

Boston Logan Intl

Sat 8/22

4:43 pm-10:05 pm

1 stop8h 22m

$253

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 8/17

11:50 pm-11:16 am

1 stop8h 26m

Boston Logan Intl

Thu 8/20

4:30 pm-10:35 pm

1 stop9h 05m

$254

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 8/26

12:00 pm-11:13 pm

1 stop8h 13m

Portland

Thu 9/3

2:14 pm-9:52 pm

1 stop10h 38m

$328

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Thu 8/27

12:00 pm-11:13 pm

1 stop8h 13m

Portland

Wed 9/2

12:47 pm-10:23 pm

2 stops12h 36m

$344

OntarioBangor

ONT - BGR

ONTBGR

Ontario

Tue 10/27

5:00 am-7:53 pm

2 stops11h 53m

Bangor

Sat 10/31

4:15 pm-10:26 pm

1 stop9h 11m

$484

OntarioBangor

ONT - BGR

ONTBGR

Ontario

Tue 10/27

5:00 am-7:53 pm

2 stops11h 53m

Bangor

Sat 10/31

9:15 am-8:20 pm

2 stops14h 05m

$489

OntarioBangor

ONT - BGR

ONTBGR

Ontario

Sun 8/9

8:01 pm-12:05 pm

2 stops13h 04m

Bangor

Thu 8/13

5:45 am-1:31 pm

2 stops10h 46m

$526

OntarioBangor

ONT - BGR

ONTBGR

Ontario

Mon 9/14

1:05 pm-10:20 am

2 stops18h 15m

Bangor

Sat 9/19

5:50 am-1:25 pm

2 stops10h 35m

$529

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $0, 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 September is also cheap. Prices for this month can be found on momondo for an average of $148.

Can stopping save me money on Ontario to Maine flights?

You could potentially save up to 49% 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

Fastest flight time	6h 45m
Direct flights	None

The fastest flight from Ontario to Maine takes 6h 45m

There are no direct flights from Ontario to Maine. There are no popular flight routes from Ontario to Maine.

Search flight deals

Frequently asked questions about flying from Ontario to Maine

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?
As of June 2026, there are 5 operators available to choose from 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
American Airlines	PriceFrom $256	Free Cancellation	Rating 7.1 11,716 reviews	Search American Airlines flights
Southwest	PriceFrom $383	Free Cancellation	Rating 7.9 4,241 reviews	Search Southwest flights
United Airlines	PriceFrom $396	Free Cancellation	Rating 7.4 9,865 reviews	Search United Airlines 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.