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Maine

$95+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PWM
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
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 January 21, 2025.

Round-trip from

$191
(Frontier)

One-way from

$95
(Mytrip)
From Ontario to Maine
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One-way flight from Ontario to Maine
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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 January 21, 2025.

This Frontier deal was found by Cheapflights users on 1/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:59 pmONT - BOS
1 stop13h 56mFrontier
Wed 4/912:55 pmBOS - ONT
1 stop9h 03mFrontier
Deal found 1/21$191
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 2/1510:50 pmONT - BOS
1 stop9h 08mAmerican Airlines
Tue 2/182:31 pmBOS - ONT
1 stop9h 31mAmerican Airlines
Deal found 1/20$269
This JetBlue deal was found by Cheapflights users on 1/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2011:45 pmONT - PWM
1 stop10h 38mJetBlue
Sun 6/292:20 pmPWM - ONT
1 stop11h 10mJetBlue
Deal found 1/21$271
This Delta deal was found by Cheapflights users on 1/21. 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 8/210:59 pmONT - PWM
1 stop9h 40mDelta
Thu 8/1412:30 pmPWM - ONT
1 stop9h 59mDelta
Deal found 1/21$307
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/287:14 pmONT - BOS
1 stop9h 30mAlaska Airlines
Mon 3/36:24 pmBOS - ONT
1 stop19h 38mAlaska Airlines
Deal found 1/20$308
This Delta deal was found by Cheapflights users on 1/21. 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.
Fri 2/284:05 pmONT - BOS
1 stop11h 50mDelta
Mon 3/36:35 pmBOS - ONT
1 stop8h 16mDelta
Deal found 1/21$309
This Southwest deal was found by Cheapflights users on 1/21. 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 4/211:25 amONT - BOS
1 stop9h 40mSouthwest
Mon 4/75:50 amBOS - ONT
2 stops9h 55mSouthwest
Deal found 1/21$322
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Fri 2/75:10 amONT - BOS
1 stop7h 38mUnited Airlines
Tue 2/117:00 amBOS - ONT
1 stop8h 41mUnited Airlines
Deal found 1/20$336
This Southwest deal was found by Cheapflights users on 1/21. 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 6/189:00 amONT - PWM
2 stops11h 25mSouthwest
Tue 6/245:30 amPWM - ONT
2 stops10h 30mSouthwest
Deal found 1/21$469
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Sat 3/87:35 pmONT - BGR
2 stops12h 27mAmerican Airlines
Thu 3/1312:55 pmBGR - ONT
2 stops12h 32mAmerican Airlines
Deal found 1/21$529
This American Airlines deal was found by Cheapflights users on 1/21. 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 5/286:47 amONT - PWM
2 stops12h 34mAmerican Airlines
Thu 6/56:30 pmPWM - ONT
1 stop8h 03mAmerican Airlines
Deal found 1/21$538
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 2/56:15 amONT - PWM
2 stops13h 15mUnited Airlines
Sun 2/96:35 pmPWM - ONT
2 stops18h 16mUnited Airlines
Deal found 1/21$583

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 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 4/1

6:59 pm-11:55 am

1 stop13h 56m

Boston Logan Intl

Wed 4/9

12:55 pm-6:58 pm

1 stop9h 03m

$191

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 2/15

10:50 pm-10:58 am

1 stop9h 08m

Boston Logan Intl

Tue 2/18

2:31 pm-9:02 pm

1 stop9h 31m

$269

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 6/20

11:45 pm-1:23 pm

1 stop10h 38m

Portland

Sun 6/29

2:20 pm-10:30 pm

1 stop11h 10m

$271

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 2/28

7:14 pm-7:44 am

1 stop9h 30m

Boston Logan Intl

Mon 3/3

7:00 am-6:19 pm

1 stop14h 19m

$308

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 2/28

4:05 pm-6:55 am

1 stop11h 50m

Boston Logan Intl

Mon 3/3

6:35 pm-11:51 pm

1 stop8h 16m

$309

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 4/2

11:25 am-12:05 am

1 stop9h 40m

Boston Logan Intl

Mon 4/7

5:50 am-12:45 pm

2 stops9h 55m

$322

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 2/7

5:10 am-3:48 pm

1 stop7h 38m

Boston Logan Intl

Tue 2/11

7:00 am-12:41 pm

1 stop8h 41m

$336

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 6/18

9:00 am-11:25 pm

2 stops11h 25m

Portland

Tue 6/24

5:30 am-1:00 pm

2 stops10h 30m

$469

OntarioBangor

ONT - BGR

ONTBGR

Ontario

Sat 3/8

7:35 pm-11:02 am

2 stops12h 27m

Bangor

Thu 3/13

12:55 pm-10:27 pm

2 stops12h 32m

$529

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 5/28

6:47 am-10:21 pm

2 stops12h 34m

Portland

Thu 6/5

6:30 pm-11:33 pm

1 stop8h 03m

$538

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 33 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 $296). Flying from Ontario to Maine in April is currently the most expensive (average of $498). 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 January 21, 2025.

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 January 21, 2025.
To help decide which airline to fly from Ontario to Maine, see what other customers have to say about American Airlines, United Airlines and Alaska Airlines. 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
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

JetBlue
7.4
Good
3,201 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

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 $95 on Frontier. Other airlines that offer cheap prices include United Airlines from $135 and American Airlines from $136 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 $296). Flying from Ontario to Maine in April is currently the most expensive (average of $498). 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

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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 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$259Average$349FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$327Average$511FlexibilityNo cancel feeOn-time71%
DeltaCheapest$361Average$784FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$451Average$867FlexibilityNo cancel feeOn-time69%
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