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CA $210 Cheap Flights from Boston (BOS) to Ontario Intl. Airport (ONT)

View CA $210 flight on Tue, Aug 25, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Ontario Intl. Airport (ONT)

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Cheap flights from Boston (BOS) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at CA $210 for one-way flights and CA $478 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Sep 10 - Wed, Sep 16
BOS
Boston
ONT
Ontario
CA $478 Roundtrip, found 1 day ago
CA $478
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 10 from Boston to Ontario, returning Wed, Sep 16, priced at CA $478 found 1 day ago
Delta
Thu, Sep 10 - Wed, Sep 16
BOS
Boston
ONT
Ontario
CA $478 Roundtrip, found 1 day ago
CA $478
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 10 from Boston to Ontario, returning Wed, Sep 16, priced at CA $478 found 1 day ago
American Airlines
Fri, Sep 18 - Tue, Sep 22
BOS
Boston
ONT
Ontario
CA $506 Roundtrip, found 3 days ago
CA $506
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Sep 18 from Boston to Ontario, returning Tue, Sep 22, priced at CA $506 found 3 days ago
JetBlue Airways
Fri, Sep 18 - Tue, Sep 22
BOS
Boston
ONT
Ontario
CA $529 Roundtrip, found 3 days ago
CA $529
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Fri, Sep 18 from Boston to Ontario, returning Tue, Sep 22, priced at CA $529 found 3 days ago
Delta
Thu, Sep 10 - Wed, Sep 16
BOS
Boston
ONT
Ontario
CA $550 Roundtrip, found 1 day ago
CA $550
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 10 from Boston to Ontario, returning Wed, Sep 16, priced at CA $550 found 1 day ago
Alaska Airlines
Fri, Aug 28 - Mon, Aug 31
BOS
Boston
ONT
Ontario
CA $555 Roundtrip, found 6 days ago
CA $555
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Aug 28 from Boston to Ontario, returning Mon, Aug 31, priced at CA $555 found 6 days ago
Alaska Airlines
Fri, Aug 28 - Mon, Aug 31
BOS
Boston
ONT
Ontario
CA $563 Roundtrip, found 6 days ago
CA $563
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Aug 28 from Boston to Ontario, returning Mon, Aug 31, priced at CA $563 found 6 days ago
American Airlines
Fri, Sep 18 - Tue, Sep 22
BOS
Boston
ONT
Ontario
CA $602 Roundtrip, found 3 days ago
CA $602
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Sep 18 from Boston to Ontario, returning Tue, Sep 22, priced at CA $602 found 3 days ago
Delta
Fri, Jul 17 - Fri, Jul 24
BOS
Boston
ONT
Ontario
CA $621 Roundtrip, found 4 days ago
CA $621
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Jul 17 from Boston to Ontario, returning Fri, Jul 24, priced at CA $621 found 4 days ago
United
Fri, Jul 17 - Fri, Jul 24
BOS
Boston
ONT
Ontario
CA $704 Roundtrip, found 4 days ago
CA $704
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jul 17 from Boston to Ontario, returning Fri, Jul 24, priced at CA $704 found 4 days ago

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) cost?
You can find one-way and return flights from BOS to ONT with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when BOS to ONT ticket fares go up or down.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
September is typically the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT), with average return fares around CA$526. September often sees lower prices as the peak summer travel season winds down, and demand decreases. February and July are also good months to find deals on this route.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
Enter BOS to ONT and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Boston, MA (BOS) to Ontario Intl. Airport (ONT)?
To find a cheap flight from Boston, MA (BOS) to Ontario Intl. Airport (ONT), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Boston, MA (BOS) to Ontario Intl. Airport (ONT)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
There are approximately 101 connecting flights per day from Boston Logan International (BOS) to Ontario International Airport (ONT). Some common connection points include Seattle - Tacoma International (SEA), Baltimore Washington International Thurgood Marshall (BWI), and Midway International (MDW).
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
The earliest flight from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) typically departs around 5:00 AM local time. This service is operated by American Airlines and is seasonal, active in July and August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
You'll typically find the most flights from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) on a Friday, with around 63 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, American Airlines, and Southwest Airlines. Fridays and Thursdays offer notably more flight options compared to other days of the week, which tend to have a more consistent number of flights.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
The most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Southwest Airlines and Alaska Airlines, offer flights during this window. Many travellers prefer this because it allows for an early start to their journey, often arriving at their destination with plenty of time left in the day.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
There are no nonstop flights from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT). For this route, which covers a distance of approximately 4118 kilometres, flights with one stop typically take around 8 hours 48 minutes. If you opt for flights with two or more stops, your travel time will be longer, usually around 12 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and weather conditions.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT)?
Yes, you can fly business or first class between BOS and ONT. You can fly business class with Delta.First class cabins are available on Alaska Airlines, Delta, United, and American Airlines.
How do I earn miles on a Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ontario Intl. Airport (ONT) from Boston, MA (BOS)?
If you're planning to travel to Ontario from Logan International Airport (BOS), you can fly directly into Los Angeles - Ontario International Airport (ONT). Some flights may connect through major hubs like Midway International Airport (MDW), Baltimore Washington International Thurgood Marshall Airport (BWI), or Seattle - Tacoma International Airport (SEA) before reaching Ontario. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to Ontario Intl. Airport (ONT) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boston, MA (BOS) to Ontario Intl. Airport (ONT)?
If you booked your Boston, MA (BOS) to Ontario Intl. Airport (ONT) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Logan Intl.
Destination airport
Ontario Intl. Airport
Airlines serving
American Airlines, Delta, JetBlue Airways
Roundtrip price
CA $478
Distance
4094 km

Book with confidence

Boston to Los Angeles Flights

The easy way to book your flights from Boston to Ontario Intl. Airport 

With Expedia, it’s simple to find and book flights to Ontario Intl. Airport from Boston whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Ontario Intl. Airport, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Boston to Ontario Intl. Airport today, tomorrow, or this week.  

 

Save dollars with cheap flights from Logan Intl., BOS to Ontario Intl. Airport, ONT 

Sort your search results by price to find great deals on your flight from Boston to Ontario Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Ontario Intl. Airport from Boston currently is just CA $478 rising to CA $704.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Ontario Intl. Airport  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Ontario Intl. Airport from Boston 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Ontario Intl. Airport with Expedia today.

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