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$145+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — ONT
Δεκ 24 — Δεκ 311
Τρι 12/24
Τρι 12/31
1 adult, Economy
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Cheap flight deals from Maine to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Maine (USME) to Ontario (ONT). 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 Δεκέμβριος 19, 2024.

Round-trip from

$268
(Frontier)

One-way from

$154
(Alaska Airlines)
From Maine to Ontario
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One-way flight from Maine to Ontario
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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 Δεκέμβριος 19, 2024.

This Delta deal was found by Cheapflights users on 12/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Τρι 12/316:00 amBOS - ONT
1 stop9h 08mDelta
Τετ 1/81:21 pmONT - BOS
1 stop7h 58mDelta
Deal found 12/19$382
This Southwest deal was found by Cheapflights users on 12/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Κυρ 12/222:15 pmPWM - ONT
2 stops9h 45mSouthwest
Κυρ 12/299:00 pmONT - PWM
2 stops13h 30mSouthwest
Deal found 12/19$605
This United Airlines deal was found by Cheapflights users on 12/19. 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.
Τρι 12/313:25 pmBOS - ONT
1 stop10h 04mUnited Airlines
Πεμ 1/306:15 amONT - BOS
1 stop10h 16mUnited Airlines
Deal found 12/19$623
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Κυρ 12/2212:56 pmPWM - ONT
2 stops12h 06mAmerican Airlines
Κυρ 1/511:59 pmONT - PWM
2 stops13h 38mAmerican Airlines
Deal found 12/19$694
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Σαβ 12/215:00 pmBOS - ONT
1 stop8h 02mAmerican Airlines
Παρ 1/312:45 pmONT - BOS
1 stop8h 11mAmerican Airlines
Deal found 12/19$727
This Southwest deal was found by Cheapflights users on 12/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Κυρ 12/223:15 pmBOS - ONT
2 stops10h 45mSouthwest
Κυρ 12/291:55 pmONT - BOS
1 stop8h 10mSouthwest
Deal found 12/19$731
This Delta deal was found by Cheapflights users on 12/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Κυρ 12/226:05 amPWM - ONT
2 stops13h 13mDelta
Κυρ 12/2911:56 amONT - PWM
1 stop9h 14mDelta
Deal found 12/19$743
This Alaska Airlines deal was found by Cheapflights users on 12/19. 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.
Πεμ 12/198:20 pmBOS - ONT
1 stop16h 25mAlaska Airlines
Τρι 12/241:28 pmONT - BOS
1 stop13h 02mAlaska Airlines
Deal found 12/19$1,028
This United deal was found by Cheapflights users on 12/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Κυρ 12/224:15 pmPWM - ONT
2 stops24h 01mUnited Airlines
Κυρ 1/55:05 amONT - PWM
3 stops15h 32mUnited Airlines
Deal found 12/19$1,202
This Alaska Airlines deal was found by Cheapflights users on 12/19. 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.
Κυρ 12/224:15 pmPWM - ONT
3 stops20h 30mAlaska Airlines
Κυρ 1/510:40 amONT - PWM
3 stops30h 29mAlaska Airlines
Deal found 12/19$3,676

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 2,558,603 searches. Data last updated Δεκέμβριος 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Πεμ 5/1

1:00 pm-6:58 pm

1 stop8h 58m

Ontario

Τετ 5/7

7:58 pm-12:00 pm

1 stop13h 02m

$268

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Σαβ 1/18

6:25 am-11:58 am

1 stop8h 33m

Ontario

Σαβ 1/25

10:00 am-8:23 pm

1 stop7h 23m

$277

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Σαβ 1/25

6:15 am-12:26 pm

1 stop9h 11m

Ontario

Παρ 1/31

5:10 pm-6:35 am

1 stop10h 25m

$308

PortlandOntario

PWM - ONT

PWMONT

Portland

Σαβ 2/8

5:24 am-6:37 pm

2 stops16h 13m

Ontario

Κυρ 2/16

11:59 pm-3:30 pm

2 stops12h 31m

$316

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Τρι 2/4

5:55 pm-10:38 am

1 stop19h 43m

Ontario

Πεμ 2/6

11:33 am-11:59 pm

1 stop9h 26m

$325

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Σαβ 1/18

7:00 am-12:43 pm

1 stop8h 43m

Ontario

Σαβ 1/25

10:47 am-9:43 pm

1 stop7h 56m

$378

PortlandOntario

PWM - ONT

PWMONT

Portland

Κυρ 1/26

1:25 pm-11:05 pm

2 stops12h 40m

Ontario

Παρ 1/31

9:20 am-10:15 pm

2 stops9h 55m

$388

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Παρ 5/16

5:50 am-11:05 am

1 stop8h 15m

Ontario

Κυρ 5/18

9:30 pm-2:35 pm

1 stop14h 05m

$416

PortlandOntario

PWM - ONT

PWMONT

Portland

Πεμ 1/9

5:34 am-11:50 am

1 stop9h 16m

Ontario

Κυρ 1/12

1:00 pm-11:51 pm

1 stop7h 51m

$420

PortlandOntario

PWM - ONT

PWMONT

Portland

Κυρ 1/26

4:00 pm-10:38 am

2 stops21h 38m

Ontario

Παρ 1/31

4:06 pm-10:12 pm

3 stops27h 06m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 23 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 Δεκέμβριος 19, 2024.
Read through reviews of airlines operating flights from Maine to Ontario, such as American Airlines, Alaska Airlines and United 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
4,821 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Southwest
8.1
Very good
4,821 reviews
Southwest
8.1
Very good
4,821 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,547 reviews
Southwest
8.1
Very good
4,821 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Delta
8.0
Very good
8,600 reviews
Southwest
8.1
Very good
4,821 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,048 reviews
Southwest
8.1
Very good
4,821 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

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
4,821 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

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.

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

    $154 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Frontier and Delta, with prices starting from $156 and $158, 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.

  • 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.

  • 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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Alternative routes for Maine to Ontario

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

Discover the top airline 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 2,558,603 searches. Data last updated Δεκέμβριος 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$352Average$592FlexibilityNo cancel feeOn-time71%
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