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$131+ Cheap flights from Maine to Ontario (ONT)

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — ONT
Nov 9 — Nov 161
Sat 11/9
Sat 11/16
1 adult, Economy
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Find flight deals from Maine to Ontario

Cheapest flights from Maine to Ontario
Explore the most affordable flight options available from Maine to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2024.

This Delta deal was found by Cheapflights users on 11/3. 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 12/109:15 amBOS - ONT
1 stop10h 15mDelta
Sun 12/1510:00 pmONT - BOS
1 stop8h 37mDelta
Deal found 11/3$308
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Fri 12/65:29 amBOS - ONT
1 stop9h 32mAmerican Airlines
Sun 12/87:30 pmONT - BOS
2 stops9h 26mAmerican Airlines
Deal found 11/4$313
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/45:55 amBOS - ONT
1 stop11h 38mUnited Airlines
Sat 12/710:35 amONT - BOS
1 stop8h 33mUnited Airlines
Deal found 11/3$331
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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 12/67:54 pmBOS - ONT
1 stop28h 10mAlaska Airlines
Thu 12/126:00 amONT - BOS
1 stop9h 59mAlaska Airlines
Deal found 11/3$335
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:00 amBOS - ONT
2 stops20h 44mFrontier
Mon 12/97:45 amONT - BOS
2 stops37h 45mFrontier
Deal found 11/2$337
This United Airlines deal was found by Cheapflights users on 11/4. 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 amPWM - ONT
2 stops11h 44mUnited Airlines
Fri 12/66:28 pmONT - PWM
2 stops13h 17mUnited Airlines
Deal found 11/4$437
This Southwest deal was found by Cheapflights users on 11/3. 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.
Tue 12/247:25 amBOS - ONT
1 stop11h 30mSouthwest
Thu 1/25:05 amONT - BOS
2 stops10h 00mSouthwest
Deal found 11/3$447
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/165:10 amBGR - ONT
2 stops11h 49mAmerican Airlines
Thu 12/127:30 pmONT - BGR
2 stops13h 32mAmerican Airlines
Deal found 11/3$448
This Southwest deal was found by Cheapflights users on 11/4. 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.
Thu 12/195:30 amPWM - ONT
2 stops12h 35mSouthwest
Tue 12/249:05 amONT - PWM
2 stops10h 25mSouthwest
Deal found 11/4$489
This American Airlines deal was found by Cheapflights users on 11/4. 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 11/205:22 amPWM - ONT
2 stops13h 01mAmerican Airlines
Mon 12/27:30 pmONT - PWM
2 stops13h 30mAmerican Airlines
Deal found 11/4$505
This Delta deal was found by Cheapflights users on 11/4. 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 11/1212:20 pmPWM - ONT
2 stops13h 41mDelta
Sat 11/1611:53 amONT - PWM
1 stop8h 54mDelta
Deal found 11/4$574
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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.
Sat 11/1612:43 pmBGR - ONT
2 stops23h 21mAlaska Airlines
Thu 12/127:00 amONT - BGR
3 stops26h 28mAlaska Airlines
Deal found 11/3$604

Find flights from Maine to Ontario within your budget

Customize your flight search to find flights from Maine to Ontario 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 2,455,398 searches. Data last updated November 4, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 2/7

6:00 am-5:28 pm

2 stops14h 28m

$131

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sun 12/15

6:25 pm-12:13 am

1 stop8h 48m

$154

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sun 11/10

4:17 pm-9:59 am

2 stops20h 42m

$155

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 11/25

11:12 am-6:29 pm

2 stops10h 17m

$173

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 1/11

7:00 am-5:04 pm

2 stops13h 04m

$186

PortlandOntario

PWM - ONT

PWMONT

Portland

Fri 1/10

1:55 pm-12:18 am

2 stops13h 23m

$203

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 3/19

2:00 pm-10:35 pm

2 stops11h 35m

$234

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 1/6

3:15 pm-8:49 pm

1 stop8h 34m

$204

PortlandOntario

PWM - ONT

PWMONT

Portland

Sun 3/2

2:29 pm-11:50 pm

2 stops12h 21m

$324

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 12/26

5:39 am-8:37 pm

1 stop17h 58m

$590

Flights are sorted by cheapest first

Deals found on 11/4

Showing 1-10 of 28 results
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Best time to book a flight from Maine to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Maine 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 Maine to Ontario

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

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

Currently, September is the cheapest month in which you can book a flight from Maine to Ontario (average of $236). Flying from Maine to Ontario in December is currently the most expensive (average of $298). 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated November 4, 2024.
Read through reviews of airlines operating flights from Maine to Ontario, such as American Airlines, United Airlines and Southwest. 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
5,089 reviews

Overall

8.1

Boarding

8.3

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,089 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,423 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,829 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,226 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Maine to Ontario. 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 into for flights to Ontario from Maine?

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

  • Can I find flights from Maine to Ontario for under $400 on Cheapflights?

    Yes, there are multiple flights from Maine to Ontario for under $400. The cheapest flight booked recently is on Delta for just $308, but on average you can expect to pay $488.

  • Are there last-minute flights available from Maine to Ontario for under $500?

    There are currently 7+ open flights from Maine to Ontario within the next 7 days for less than $500.

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

    $131 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $154 and $173, respectively.

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

    The most popular route from Maine to Ontario is Boston Logan Intl - Ontario. You may also consider Portland - Ontario or Bangor - Ontario.

  • What does PWM to ONT mean?

    Great question - PWM to ONT just means Portland Airport to Ontario Airport. Now you’ll know what these unique codes when you look for flights! Bangor Airport (BGR), Augusta Airport (AUG), Presque Isle Airport (PQI), Bar Harbor Airport (BHB), Rockland Knox County Regional Airport (RKD) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Maine to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Maine to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Maine to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Maine to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Maine to Ontario that allow pets onboard?

    Many airlines flying from Maine to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Maine to Ontario?

    Yes, you can often find last-minute deals on Maine to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Maine to Ontario flight deals updated?

    The Maine to Ontario flight deals you see on this page were last updated on 11/4.

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

    Currently, September is the cheapest month in which you can book a flight from Maine to Ontario (average of $236). Flying from Maine to Ontario in December is currently the most expensive (average of $298). 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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Top 2 airlines flying from Maine to Ontario

Discover the top 2 airlines that operate flights from Maine to Ontario. 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 2,455,398 searches. Data last updated November 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$547FlexibilityNo cancel feeOn-time71%
DeltaCheapest$295Average$847FlexibilityNo cancel feeOn-timeN/A
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