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

View AU$241 flight on Fri, 14 Aug 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 for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$519 Return, found 2 days ago
AU$519
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$519 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$619 Return, found 2 days ago
AU$619
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$619 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$649 Return, found 2 days ago
AU$649
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$649 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$678 Return, found 2 days ago
AU$678
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$678 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$777 Return, found 2 days ago
AU$777
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$777 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$784 Return, found 2 days ago
AU$784
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$784 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$807 Return, found 2 days ago
AU$807
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$807 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$937 Return, found 2 days ago
AU$937
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$937 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$942 Return, found 2 days ago
AU$942
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$942 found 2 days ago
American Airlines
Thu, 9 July - Sat, 11 July
BOS
Boston
ONT
Ontario
AU$1,037 Return, found 2 days ago
AU$1,037
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 July from Boston to Ontario, returning Sat, 11 July, priced at AU$1,037 found 2 days ago

Frequently asked questions

What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
September is typically the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), with average round-trip fares of approximately 920 CAD. This is about 12% lower than the average price throughout the year. September often sees lower prices as the summer travel rush ends and before the holiday season begins, leading to reduced demand. Other cheap months to fly from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) include February and July.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
To find a cheap flight from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), 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-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Based on booking data from the past year, the cheapest months to fly from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) are typically September and February, with average round-trip flights around 920 CAD. While August is the most popular month for this route, offering plenty of flight options, it's not the cheapest. If you're looking for the best value, aiming for September or February will likely get you a better deal on your round-trip flight.*Prices based on flights available on Expedia in the last year.
How many flights per day from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
There are approximately 100 connecting flights per day from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.). Some common connection points include Seattle - Tacoma Intl. (SEA), Baltimore Washington Intl. Thurgood Marshall (BWI), and Midway Intl. (MDW).
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The earliest flight from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) typically departs at approximately 5:00 AM local time. This is a seasonal service active in July and August, operated by American Airlines. An early departure like this can help maximize 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, CA (ONT-Los Angeles - Ontario Intl.)?
You'll typically find the most flights from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) on a Thursday, with around 59 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Southwest Airlines. Thursdays offer notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) are in the early morning, from 6am to 9am. About 30% of passengers prefer this time window. Many major carriers, including American Airlines, Southwest Airlines and Delta Air Lines, offer flights during this window. Many travelers prefer these early morning flights because they allow you to arrive at your destination with plenty of time to start your day.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
A flight from BOS to ONT with a layover takes around 8 hours 50 minutes, with the route covering approximately 2,559 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Select the "Business class" and "First class" filters when looking for BOS to ONT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) 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 from Logan Intl. (BOS)?
If you're planning to travel to Ontario from Logan Intl. (BOS), you can fly into Los Angeles - Ontario Intl. (ONT) Some flights may connect through major hubs like Midway Intl. (MDW), Baltimore Washington Intl. Thurgood Marshall (BWI), Seattle - Tacoma Intl. (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, CA (ONT-Los Angeles - Ontario Intl.) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) 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, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) 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-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
If you booked your Boston, MA (BOS-Logan Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) 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
Return price
AU$518
Distance
4094 km

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Your quick guide to flights from Boston to Ontario Intl. Airport

Pick up great flights from Boston to Ontario Intl. Airport

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Boston to Ontario Intl. Airport. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Boston to Ontario Intl. Airport that take around hours.

Find cheap flights from Boston to Ontario Intl. Airport

From the great flight deals with prices currently ranging from AU$519 to AU$1,037, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Boston to Ontario Intl. Airport around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Ontario Intl. Airport is normally in July.

Reasons to book your flight from Boston to Ontario Intl. Airport with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Boston to Ontario Intl. Airport across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Ontario Intl. Airport right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Boston to Ontario Intl. Airport

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