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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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PWM
abr. 20 — abr. 271
dom. 4/20
dom. 4/27
1 adult, Economy
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Cheap flight deals from Ontario to Maine

Keep the following information in mind while searching for Ontario to Maine flight deals. Data was last updated abril 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$253
(Expedia)

One-way from

$95
(Frontier)

Popular in

December

Cheapest in

January

Average price

$580
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From Ontario to Maine
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One-way flight from Ontario to Maine
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Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 abril 15, 2025.

This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/36:47 pmONT - BOS
1 stop14h 20mMultiple Airlines
mar. 5/67:00 amBOS - ONT
1 stop11h 32mMultiple Airlines
Deal found 4/14$253
This Frontier deal was found by Cheapflights users on 4/15. 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.
mié. 5/146:47 pmONT - BOS
1 stop14h 20mFrontier
lun. 6/211:56 amBOS - ONT
1 stop10h 16mFrontier
Deal found 4/15$260
This American Airlines deal was found by Cheapflights users on 4/14. 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.
sáb. 5/2410:40 pmONT - BOS
1 stop7h 40mAmerican Airlines
vie. 5/306:45 amBOS - ONT
1 stop8h 05mAmerican Airlines
Deal found 4/14$269
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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.
lun. 5/56:24 pmONT - BOS
1 stop10h 31mAlaska Airlines
mié. 5/77:00 amBOS - ONT
1 stop11h 32mAlaska Airlines
Deal found 4/14$288
This JetBlue deal was found by Cheapflights users on 4/13. 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.
mar. 6/310:59 pmONT - BOS
1 stop11h 12mJetBlue
mar. 6/1012:15 pmBOS - ONT
1 stop12h 07mJetBlue
Deal found 4/13$291
This JetBlue deal was found by Cheapflights users on 4/15. 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.
vie. 5/910:59 pmONT - PWM
1 stop11h 21mJetBlue
lun. 5/123:35 pmPWM - ONT
1 stop8h 36mJetBlue
Deal found 4/15$291
This Delta deal was found by Cheapflights users on 4/13. 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.
sáb. 5/244:57 pmONT - BOS
1 stop10h 28mDelta
vie. 5/306:47 pmBOS - ONT
1 stop7h 55mDelta
Deal found 4/13$297
This Delta deal was found by Cheapflights users on 4/13. 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.
mié. 7/912:00 pmONT - PWM
1 stop8h 59mDelta
mar. 7/156:00 amPWM - ONT
1 stop8h 07mDelta
Deal found 4/13$297
This American Airlines deal was found by Cheapflights users on 4/15. 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.
mié. 6/410:00 amONT - PWM
2 stops9h 45mAmerican Airlines
sáb. 6/76:18 pmPWM - ONT
1 stop8h 41mAmerican Airlines
Deal found 4/15$306
This United Airlines deal was found by Cheapflights users on 4/14. 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.
mié. 5/76:08 amONT - BOS
1 stop9h 03mUnited Airlines
mié. 5/141:33 pmBOS - ONT
1 stop11h 27mUnited Airlines
Deal found 4/14$307
This Southwest deal was found by Cheapflights users on 4/14. 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.
jue. 5/17:35 pmONT - PWM
2 stops12h 30mSouthwest
mié. 5/72:20 pmPWM - ONT
2 stops10h 25mSouthwest
Deal found 4/14$338
This Hawaiian Airlines deal was found by Cheapflights users on 4/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2211:30 amONT - BOS
1 stop9h 29mHawaiian Airlines
mié. 10/297:00 amBOS - ONT
1 stop11h 12mHawaiian Airlines
Deal found 4/14$362

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated abril 15, 2025.
Use the filters below to find and compare flights from Ontario to Maine that are best for you.

Fly from

Ontario

Fly to

Maine

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

sáb. 5/3

6:47 pm-12:07 pm

1 stop14h 20m

Boston Logan Intl

mar. 5/6

7:00 am-3:32 pm

1 stop11h 32m

$253

OntarioBoston

ONT - BOS

ONTBOS

Ontario

mié. 5/14

6:47 pm-12:07 pm

1 stop14h 20m

Boston Logan Intl

lun. 6/2

11:56 am-7:12 pm

1 stop10h 16m

$260

OntarioBoston

ONT - BOS

ONTBOS

Ontario

sáb. 5/24

10:40 pm-9:20 am

1 stop7h 40m

Boston Logan Intl

vie. 5/30

6:45 am-11:50 am

1 stop8h 05m

$269

OntarioBoston

ONT - BOS

ONTBOS

Ontario

lun. 5/5

6:24 pm-7:55 am

1 stop10h 31m

Boston Logan Intl

mié. 5/7

7:00 am-3:32 pm

1 stop11h 32m

$288

OntarioBoston

ONT - BOS

ONTBOS

Ontario

mar. 6/3

10:59 pm-1:11 pm

1 stop11h 12m

Boston Logan Intl

mar. 6/10

12:15 pm-9:22 pm

1 stop12h 07m

$291

OntarioPortland

ONT - PWM

ONTPWM

Ontario

vie. 5/9

10:59 pm-1:20 pm

1 stop11h 21m

Portland

lun. 5/12

3:35 pm-9:11 pm

1 stop8h 36m

$291

OntarioBoston

ONT - BOS

ONTBOS

Ontario

sáb. 5/24

4:57 pm-6:25 am

1 stop10h 28m

Boston Logan Intl

vie. 5/30

6:47 pm-11:42 pm

1 stop7h 55m

$297

OntarioPortland

ONT - PWM

ONTPWM

Ontario

mié. 7/9

12:00 pm-11:59 pm

1 stop8h 59m

Portland

mar. 7/15

6:00 am-11:07 am

1 stop8h 07m

$297

OntarioPortland

ONT - PWM

ONTPWM

Ontario

mié. 6/4

10:00 am-10:45 pm

2 stops9h 45m

Portland

sáb. 6/7

6:18 pm-11:59 pm

1 stop8h 41m

$306

OntarioBoston

ONT - BOS

ONTBOS

Ontario

mié. 5/7

6:08 am-6:11 pm

1 stop9h 03m

Boston Logan Intl

mié. 5/14

1:33 pm-10:00 pm

1 stop11h 27m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 35 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Maine

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 May is currently the most expensive (average of $416). 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 abril 15, 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 abril 15, 2025.
To help decide which airline to fly from Ontario to Maine, see what other customers have to say about Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
9,876 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,374 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 American Airlines from $135 and Hawaiian 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 May is currently the most expensive (average of $416). 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 5 airlines flying from Ontario to Maine

Discover the top 5 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 abril 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$259Average$392FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$327Average$488FlexibilityNo cancel feeOn-time71%
DeltaCheapest$353Average$707FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$384Average$812FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$523Average$796FlexibilityNo cancel feeOn-time63%

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