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$109+ Cheap flights from Ontario (ONT) to Maine

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PWM
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Ontario to Maine

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Maine (USME). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from Ontario to Maine

Cheapest flights from Ontario to Maine
Explore the most affordable flight options available from Ontario to Maine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:02 amONT - BOS
1 stop7h 21mAmerican Airlines
Fri 1/106:06 amBOS - ONT
1 stop8h 52mAmerican Airlines
Deal found 11/20$293
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2412:55 pmONT - BOS
1 stop7h 33mDelta
Wed 1/85:40 pmBOS - ONT
1 stop9h 13mDelta
Deal found 11/20$312
This Alaska Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/67:00 amONT - BOS
1 stop8h 54mAlaska Airlines
Mon 12/97:54 pmBOS - ONT
1 stop20h 04mAlaska Airlines
Deal found 11/19$334
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/259:05 amONT - BOS
2 stops10h 20mSouthwest
Fri 1/108:10 amBOS - ONT
2 stops10h 30mSouthwest
Deal found 11/20$392
This United deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:05 amONT - BOS
2 stops10h 41mUnited Airlines
Fri 1/1010:57 amBOS - ONT
2 stops12h 54mUnited Airlines
Deal found 11/20$403
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/37:15 amONT - PWM
2 stops13h 40mAmerican Airlines
Mon 12/162:24 pmPWM - ONT
2 stops10h 39mAmerican Airlines
Deal found 11/20$534
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:05 amONT - PWM
2 stops15h 00mSouthwest
Thu 1/22:15 pmPWM - ONT
2 stops12h 20mSouthwest
Deal found 11/20$581
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/286:00 amONT - PWM
2 stops11h 09mUnited Airlines
Wed 12/47:27 pmPWM - ONT
2 stops31h 31mUnited Airlines
Deal found 11/20$611
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/311:53 amONT - PWM
1 stop8h 54mDelta
Mon 12/1612:58 pmPWM - ONT
2 stops13h 04mDelta
Deal found 11/20$623
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2310:00 pmONT - BGR
2 stops13h 23mDelta
Wed 11/271:15 pmBGR - ONT
2 stops12h 46mDelta
Deal found 11/20$728
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/55:05 amONT - BGR
2 stops13h 20mUnited Airlines
Mon 12/99:30 amBGR - ONT
2 stops14h 17mUnited Airlines
Deal found 11/19$749
This Alaska Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:00 amONT - PWM
2 stops13h 46mAlaska Airlines
Mon 12/92:24 pmPWM - ONT
2 stops12h 35mAlaska Airlines
Deal found 11/19$1,268

Find flights from Ontario to Maine within your budget

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, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 1/15

7:45 am-4:20 pm

3 stops29h 35m

Boston Logan Intl

Sun 1/19

12:56 pm-11:24 pm

3 stops37h 28m

$269

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 12/25

10:02 am-8:23 pm

1 stop7h 21m

Boston Logan Intl

Fri 1/10

6:06 am-11:58 am

1 stop8h 52m

$293

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 1/9

11:33 am-11:59 pm

1 stop9h 26m

Boston Logan Intl

Thu 1/23

7:00 am-3:11 pm

1 stop11h 11m

$308

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 12/24

12:55 pm-11:28 pm

1 stop7h 33m

Boston Logan Intl

Wed 1/8

5:40 pm-11:53 pm

1 stop9h 13m

$312

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 1/10

5:10 am-5:23 pm

2 stops9h 13m

Boston Logan Intl

Mon 1/13

12:12 pm-8:51 pm

2 stops11h 39m

$318

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 12/25

9:05 am-10:25 pm

2 stops10h 20m

Boston Logan Intl

Fri 1/10

8:10 am-3:40 pm

2 stops10h 30m

$392

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Tue 1/21

6:15 am-10:30 pm

2 stops13h 15m

Portland

Wed 1/29

6:00 am-6:04 pm

2 stops15h 04m

$446

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 1/17

6:10 am-10:28 pm

2 stops13h 18m

Portland

Fri 1/24

7:10 am-6:24 pm

2 stops14h 14m

$486

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Mon 12/23

6:05 am-12:05 am

2 stops15h 00m

Portland

Thu 1/2

2:15 pm-11:35 pm

2 stops12h 20m

$581

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Tue 12/3

11:53 am-11:47 pm

1 stop8h 54m

Portland

Mon 12/16

12:58 pm-11:02 pm

2 stops13h 04m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 24 results
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Best time to book a flight from Ontario to Maine

Have a flexible travel schedule? Discover the best time to fly to Maine from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Maine

Get recent, data-driven insights about flights from Ontario to Maine including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Maine?

Currently, January is the cheapest month in which you can book a flight from Ontario to Maine (average of $295). Flying from Ontario to Maine in April is currently the most expensive (average of $497). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to ME?

Find hourly flight availability from Ontario to Maine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Maine as you normally would.

Rainfall in Maine by month

Plan your trip to Maine by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Maine when rainfall is around 2.9 in.

Temperature in Maine by month

Plan your trip to Maine by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Maine

Get insights into the airlines that provide service to Maine. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maine. Reviews last updated November 21, 2024.
To help decide which airline to fly from Ontario to Maine, see what other customers have to say about American Airlines, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,759 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,173 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Maine. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Maine?

    If you book a flight to Maine from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • What are the cheapest airlines to fly from Ontario to Maine one-way?

    One-way options have recently been found by users for as low as $109 on Frontier. Other airlines that offer cheap prices include American Airlines from $139 and Delta from $148 one-way.

  • What are the most popular routes from Ontario to Maine?

    When deciding which route to take from Ontario to Maine consider Ontario - Boston Logan Intl, Ontario - Portland or Ontario - Bangor as they are the most popular.

  • Can I find deals for flights from Ontario to Maine that include hotel bookings?

    Yes. In addition to deals on Ontario to Maine flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Maine?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Maine.

  • Can I find deals for business class flights from Ontario to Maine?

    Yes. Cheapflights offers flight deals from Ontario to Maine by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Maine?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Maine (average of $295). Flying from Ontario to Maine in April is currently the most expensive (average of $497). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to Maine

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ontario to Maine

Discover the top 4 airlines that operate flights from Ontario to Maine. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$259Average$349FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$327Average$576FlexibilityNo cancel feeOn-time71%
DeltaCheapest$361Average$784FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$451Average$867FlexibilityNo cancel feeOn-time69%
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