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.

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).

What is the cheapest time of day to fly from BGR to ONT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangor, Maine to Ontario as you normally would.

Most accurate provider : When it comes to deals on Bangor, Maine-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bangor, Maine-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bangor, Maine-Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Bangor, Maine-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bangor, Maine-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Bangor to Ontario?

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

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

Yes. Cheapflights offers flight deals from Bangor 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.

$251+ Flights from Bangor, ME to Ontario

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Cheap flight deals from Bangor to Ontario

Cheapest flights from Bangor to Ontario
Explore the most affordable flight options available from Bangor to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2026.

sáb. 1/248:14 am

BGR

ONT

2 stops16h 44m

United Airlines

mié. 1/286:00 am

ONT

BGR

2 stops11h 12m

United Airlines

Deal found 1/21

$1,094

Last-minute flights from Bangor to Ontario
Discover last-minute flight deals from Bangor to Ontario. Data last updated enero 21, 2026 and is based on user searches.

sáb. 1/248:14 am

BGR

ONT

2 stops16h 44m

United Airlines

mié. 1/286:00 am

ONT

BGR

2 stops11h 12m

United Airlines

Deal found 1/21

$1,094

One-way flights from Bangor to Ontario
Search for one-way flight options from Bangor to Ontario. Find affordable one-way fares based on user searches. Data last updated enero 21, 2026.

jue. 4/27:53 pm

BGR

ONT

2 stops55h 03m

Multiple Airlines

Deal found 1/21

$251

sáb. 5/166:00 am

BGR

ONT

2 stops15h 15m

Delta

Deal found 1/21

$296

mié. 3/46:35 am

BGR

ONT

2 stops14h 06m

United Airlines

Deal found 1/20

$326

sáb. 5/163:15 pm

BGR

ONT

1 stop8h 51m

American Airlines

Deal found 1/21

$341

lun. 5/183:15 pm

BGR

ONT

2 stops20h 24m

American Airlines

Deal found 1/21

$425

dom. 5/173:15 pm

BGR

ONT

1 stop8h 51m

American Airlines

Deal found 1/21

$436

Find flight deals from Bangor to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Popular in	May
Cheapest in	January
Average price	$373

Provider with most accurate pricing for Bangor-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for Bangor-Ontario flights.

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($100 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

BangorOntario

BGR - ONT

BGRONT

Bangor

jue. 4/2

7:53 pm-11:56 pm

2 stops55h 03m

$251

BangorOntario

BGR - ONT

BGRONT

Bangor

sáb. 5/16

6:00 am-6:15 pm

2 stops15h 15m

$296

BangorOntario

BGR - ONT

BGRONT

Bangor

mié. 3/4

6:35 am-5:41 pm

2 stops14h 06m

$326

BangorOntario

BGR - ONT

BGRONT

Bangor

lun. 5/18

3:15 pm-9:06 pm

1 stop8h 51m

$341

BangorOntario

BGR - ONT

BGRONT

Bangor

sáb. 5/16

3:15 pm-9:06 pm

1 stop8h 51m

$341

BangorOntario

BGR - ONT

BGRONT

Bangor

dom. 5/17

3:15 pm-9:06 pm

1 stop8h 51m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Most accurate provider: When it comes to deals on Bangor, Maine-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bangor, Maine-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bangor, Maine-Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Bangor, Maine-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bangor, Maine-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bangor to Ontario

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

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

Currently, September is the cheapest month in which you can book a flight from Bangor, Maine to Ontario (average of $297). Flying from Bangor, Maine to Ontario in May is currently the most expensive (average of $611). 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.

Reviews of airlines servicing Ontario

Peruse reviews from past customers who have flown with American Airlines from Bangor to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

11,169 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

American Airlines

7.2

Good

11,169 reviews

American Airlines

7.2

Good

11,169 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

Related info for your journey

Can I find deals for flights from Bangor to Ontario that include hotel bookings?
Yes. In addition to deals on Bangor to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Bangor to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangor to Ontario.
Can I find deals for business class flights from Bangor to Ontario?
Yes. Cheapflights offers flight deals from Bangor 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 Bangor, Maine to Ontario?
Currently, September is the cheapest month in which you can book a flight from Bangor, Maine to Ontario (average of $297). Flying from Bangor, Maine to Ontario in May is currently the most expensive (average of $611). 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

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Other flights to Ontario

Top airline flying from Bangor to Ontario

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$308	Average$538	FlexibilityNo cancel fee	On-time71%

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$251+ Cheap flights from Bangor, ME to Ontario (BGR - 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Bangor to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Bangor to Ontario

Cheapest flights from Bangor to OntarioExplore the most affordable flight options available from Bangor to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2026.

Explore the most affordable flight options available from Bangor to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2026.

Find flight deals from Bangor to Ontario

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Bangor to Ontario that are best for you.

Best time to book a flight from Bangor to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Bangor with our price prediction graph.

Cheapflights Insights

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

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

Reviews of airlines servicing Ontario

Peruse reviews from past customers who have flown with American Airlines from Bangor to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Bangor to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How can I find direct flights from Bangor to Ontario?

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

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

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 Bangor to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Bangor to Ontario

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Book with Flexibility

Travel Smart

Cheapest flights from Bangor to Ontario
Explore the most affordable flight options available from Bangor to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2026.