HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Maine

$106+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PWM
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Maine with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 22, 2024.

Round-trip from

$278
(American Airlines)

One-way from

$106
(Trip.com)
From Ontario to Maine
Search Deals
One-way flight from Ontario to Maine
Search Deals

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 December 22, 2024.

This Delta deal was found by Cheapflights users on 12/20. 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.
Sun 12/295:30 amONT - BOS
1 stop8h 22mDelta
Tue 1/75:40 pmBOS - ONT
1 stop9h 13mDelta
Deal found 12/20$436
This American Airlines deal was found by Cheapflights users on 12/20. 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 12/2112:45 pmONT - BOS
1 stop8h 11mAmerican Airlines
Sat 1/2512:25 pmBOS - ONT
1 stop10h 06mAmerican Airlines
Deal found 12/20$497
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:00 amONT - BOS
1 stop14h 59mAlaska Airlines
Fri 1/105:55 pmBOS - ONT
1 stop27h 18mAlaska Airlines
Deal found 12/21$529
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Sat 12/2810:39 amONT - BOS
1 stop8h 33mUnited Airlines
Tue 1/1411:00 amBOS - ONT
1 stop10h 04mUnited Airlines
Deal found 12/20$532
This Southwest deal was found by Cheapflights users on 12/21. 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 12/2511:25 amONT - BOS
1 stop7h 10mSouthwest
Sun 1/53:15 pmBOS - ONT
2 stops10h 45mSouthwest
Deal found 12/21$536
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/236:50 pmONT - PWM
2 stops12h 41mUnited Airlines
Mon 12/305:20 amPWM - ONT
2 stops20h 09mUnited Airlines
Deal found 12/21$1,058
This American Airlines deal was found by Cheapflights users on 12/21. 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.
Tue 12/2411:59 pmONT - PWM
1 stop15h 28mAmerican Airlines
Sun 12/295:25 amPWM - ONT
2 stops11h 33mAmerican Airlines
Deal found 12/21$1,084

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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 1/18

6:10 am-4:46 pm

1 stop7h 36m

Boston Logan Intl

Tue 1/21

12:25 pm-6:24 pm

1 stop8h 59m

$278

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 4/2

11:33 am-11:59 pm

1 stop9h 26m

Boston Logan Intl

Wed 4/9

12:55 pm-6:58 pm

1 stop9h 03m

$307

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 1/23

1:21 pm-12:19 am

1 stop7h 58m

Boston Logan Intl

Wed 1/29

5:40 am-11:50 am

1 stop9h 10m

$308

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 1/25

4:06 pm-11:59 pm

1 stop28h 53m

Boston Logan Intl

Mon 1/27

7:00 am-3:11 pm

1 stop11h 11m

$315

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 2/1

5:10 am-5:23 pm

2 stops9h 13m

Boston Logan Intl

Mon 2/3

12:12 pm-8:51 pm

2 stops11h 39m

$318

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 1/10

5:45 am-7:45 pm

2 stops11h 00m

Boston Logan Intl

Tue 1/14

2:05 pm-9:45 pm

2 stops10h 40m

$376

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Mon 1/6

6:40 pm-10:30 am

2 stops12h 50m

Portland

Fri 1/10

6:00 am-5:57 pm

2 stops14h 57m

$512

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 5/28

7:00 am-11:14 pm

2 stops13h 14m

Portland

Thu 6/5

5:40 am-11:24 am

1 stop8h 44m

$547

OntarioBangor

ONT - BGR

ONTBGR

Ontario

Fri 1/24

5:10 am-8:37 pm

2 stops12h 27m

Bangor

Tue 2/4

9:00 am-8:51 pm

2 stops14h 51m

$603

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 5/28

6:47 am-10:21 pm

2 stops12h 34m

Portland

Thu 6/5

11:20 am-5:46 pm

2 stops9h 26m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 23 results
1
2
3

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 December 22, 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 December 22, 2024.
To help decide which airline to fly from Ontario to Maine, see what other customers have to say about American Airlines, Delta 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
4,804 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

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
4,804 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

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
9,537 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

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
8,594 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

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
9,028 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

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

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

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 $106 on Frontier. Other airlines that offer cheap prices include American Airlines from $139 and Delta from $153 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Maine

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
Los Angeles to Honolulu flights
San Francisco to Las Vegas flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Las Vegas flights
Los Angeles to Miami flights
Los Angeles to Seattle flights
San Francisco to Los Angeles flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to LaGuardia flights
Los Angeles to Orlando flights
Santa Ana to Las Vegas flights
San Francisco to Newark flights
Los Angeles to O'Hare Intl flights
San Jose to Las Vegas flights
Los Angeles to Hobby flights
Burbank to Las Vegas flights
Los Angeles to Fort Lauderdale flights
San Francisco to Honolulu flights
Oakland to Las Vegas flights
Los Angeles to San Francisco flights
San Francisco to Miami flights
San Francisco to Seattle flights
Los Angeles to George Bush Intcntl flights
Los Angeles to Reagan-National flights
Los Angeles to Boston flights
San Jose to Los Angeles flights
Los Angeles to Portland flights
Oakland to Santa Ana flights
Los Angeles to Salt Lake City flights
Ontario to Seattle flights
Ontario to Dallas/Fort Worth flights
Los Angeles to San Jose flights
San Francisco to LaGuardia flights
Los Angeles to Baltimore flights
Los Angeles to Dulles Intl flights
Santa Ana to Newark flights
San Francisco to Dallas/Fort Worth flights
Los Angeles to New Orleans flights
Los Angeles to Atlanta flights
Los Angeles to Sky Harbor Intl flights
San Diego to John F Kennedy Intl flights
Santa Ana to Seattle flights
San Diego to Seattle flights
Santa Ana to Oakland flights
Ontario to Las Vegas flights
San Jose to Seattle flights
San Francisco to Ontario flights
Oakland to Los Angeles flights

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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$259Average$349FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$327Average$577FlexibilityNo cancel feeOn-time71%
DeltaCheapest$361Average$784FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$451Average$867FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.