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Ontario

$92+ Cheap flights from Boston to Ontario (BOS - 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ONT
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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The best prices from Boston Logan Intl to Ontario are usually found in January or September, booked 86 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Boston to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 January 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$223
(FlightHub)

One-way from

$92
(Trip.com)

Popular in

October

Cheapest in

January

Average price

$362
Provider with most accurate pricing for Boston Logan Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Ontario flights.
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From Boston Logan Intl to Ontario
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One-way flight from Boston Logan Intl to Ontario
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High demand for flights, 1% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Boston to Ontario

Cheapest flights from Boston to Ontario
Explore the most affordable flight options available from Boston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

This FlightHub deal was found by Cheapflights users on 1/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:00 amBOS - ONT
1 stop14h 59mFrontier
Tue 4/16:59 pmONT - BOS
1 stop13h 56mFrontier
Deal found 1/16$223
This American Airlines deal was found by Cheapflights users on 1/15. 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.
Wed 2/128:42 amBOS - ONT
1 stop9h 47mAmerican Airlines
Tue 2/1810:50 pmONT - BOS
1 stop9h 08mAmerican Airlines
Deal found 1/15$269
This United Airlines deal was found by Cheapflights users on 1/16. 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 2/101:30 pmBOS - ONT
1 stop9h 59mUnited Airlines
Wed 2/126:00 amONT - BOS
1 stop10h 33mUnited Airlines
Deal found 1/16$299
This Alaska Airlines deal was found by Cheapflights users on 1/16. 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 2/77:00 amBOS - ONT
1 stop30h 49mAlaska Airlines
Thu 2/277:14 pmONT - BOS
1 stop9h 30mAlaska Airlines
Deal found 1/16$325
This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/301:55 pmBOS - ONT
1 stop8h 34mDelta
Sat 9/610:59 pmONT - BOS
1 stop8h 07mDelta
Deal found 1/15$329
This JetBlue deal was found by Cheapflights users on 1/15. 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.
Thu 5/13:30 pmBOS - ONT
1 stop9h 52mJetBlue
Sun 5/1111:37 pmONT - BOS
1 stop11h 54mJetBlue
Deal found 1/15$466
This Southwest deal was found by Cheapflights users on 1/14. 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.
Thu 3/206:00 amBOS - ONT
1 stop10h 55mSouthwest
Mon 3/247:10 pmONT - BOS
2 stops9h 55mSouthwest
Deal found 1/14$472

Find flights from Boston to Ontario within your budget

Customize your flight search to find flights from Boston 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 January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 3/26

6:00 am-5:59 pm

1 stop14h 59m

Ontario

Tue 4/1

6:59 pm-11:55 am

1 stop13h 56m

$223

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 2/12

8:42 am-3:29 pm

1 stop9h 47m

Ontario

Tue 2/18

10:50 pm-10:58 am

1 stop9h 08m

$269

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 2/10

1:30 pm-8:29 pm

1 stop9h 59m

Ontario

Wed 2/12

6:00 am-7:33 pm

1 stop10h 33m

$299

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 2/7

7:00 am-10:49 am

1 stop30h 49m

Ontario

Thu 2/27

7:14 pm-7:44 am

1 stop9h 30m

$325

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 2/3

6:35 pm-11:51 pm

1 stop8h 16m

Ontario

Thu 2/6

1:21 pm-12:19 am

1 stop7h 58m

$338

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 5/1

3:30 pm-10:22 pm

1 stop9h 52m

Ontario

Sun 5/11

11:37 pm-2:31 pm

1 stop11h 54m

$466

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 3/20

6:00 am-1:55 pm

1 stop10h 55m

Ontario

Mon 3/24

7:10 pm-8:05 am

2 stops9h 55m

$472

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 2/4

6:00 am-11:47 pm

2 stops20h 47m

$92

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 2/19

5:24 am-1:58 pm

1 stop11h 34m

$135

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 2/19

3:50 pm-10:52 pm

1 stop10h 02m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 13 results
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Compare providers for flights from Boston to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Ontario in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

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

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

How far ahead should I book a flight from Boston to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Ontario. Price data was last updated on January 10, 2025.

The price you pay for your flight from Boston to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Boston to Ontario (average of $246). Flying from Boston to Ontario in March is currently the most expensive (average of $311). 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 BOS to ONT?

Find hourly flight availability from Boston to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 23% on flights from Boston to Ontario by exploring options for tickets at noon.

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 January 16, 2025.
Read through reviews of airlines operating flights from Boston to Ontario, such as Alaska Airlines, American Airlines and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

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
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

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
9,681 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

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
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

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

JetBlue
7.4
Good
3,199 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

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
8,965 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

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 Boston to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Boston to Ontario round-trip?

    Currently priced at $223, Frontier will fly you from Boston to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $269 and $299, respectively. Users have found that Frontier is 50% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $92. Users have also found prices from $135 and $155 on American Airlines and Delta, respectively.

  • Where are the most common layover locations when flying from Boston to Ontario?

    Boston to Ontario flights have a layover in Dallas most often.

  • What are some popular things to do or see while on a layover in Dallas?

    Most Dallas visitors opt to spend their time experiencing American Airlines Center, Dos Equis Pavilion, and Majestic Theatre. American Airlines Center, Dos Equis Pavilion and Majestic Theatre are located about 15.0 mi, 18.3 mi, and 16.1 mi, respectively from Dallas/Fort Worth if you are interested in checking them out. Travelers can book a car rental at Dallas/Fort Worth for about $53 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Boston to Ontario flights?

    Boston to Ontario flights have a layover in Phoenix least often.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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 Boston to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Boston to Ontario (average of $246). Flying from Boston to Ontario in March is currently the most expensive (average of $311). 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.

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Alternative routes for Boston to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Boston to Ontario

Discover the top 6 airlines that operate flights from Boston 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$159Average$282FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$176Average$325FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$286Average$446FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$294Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$484FlexibilityNo cancel feeOn-time69%
DeltaCheapest$295Average$458FlexibilityNo cancel feeOn-timeN/A
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