$108+ Cheap flights from Boston (BOS) to Ontario
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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
Feb 26 — Mar 51
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boston to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Ontario
Cheapest flights from Boston to OntarioExplore 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 27, 2026.
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 27, 2026.
This Flightnetwork deal was found by Cheapflights users on 1/26. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:15 am
BOS
- YYZ
Nonstop2h 02m
Air Canada
Sun 3/18:20 am
YYZ
- BOS
Nonstop1h 42m
Air Canada
Deal found 1/26![Air Canada logo]()
$200
This Booking.com deal was found by Cheapflights users on 1/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:15 am
BOS
- YYZ
Nonstop2h 02m
Air Canada
Fri 3/202:15 pm
YYZ
- BOS
Nonstop1h 42m
Air Canada
Deal found 1/27![Air Canada logo]()
$203
This Mytrip deal was found by Cheapflights users on 1/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/263:30 pm
BOS
- YYZ
1 stop4h 41m
Multiple Airlines
Sun 3/18:20 am
YYZ
- BOS
Nonstop1h 42m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$231
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:15 am
BOS
- YYZ
Nonstop2h 02m
Air Canada
Thu 2/1910:30 am
YYZ
- BOS
Nonstop1h 42m
Air Canada
Deal found 1/27![Air Canada logo]()
$235
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:55 pm
BOS
- YYZ
1 stop18h 10m
Multiple Airlines
Fri 5/18:10 am
YYZ
- BOS
Nonstop1h 44m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$247
This Vliegwinkel deal was found by Cheapflights users on 1/26. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:55 pm
BOS
- YTZ
Nonstop1h 57m
Porter Airlines
Mon 3/21:10 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 1/26![Porter Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:05 am
BOS
- YTZ
Nonstop1h 59m
Porter Airlines
Tue 4/288:30 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 1/26![Porter Airlines logo]()
$249
This Trip.com deal was found by Cheapflights users on 1/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:00 am
BOS
- YTZ
Nonstop1h 52m
Porter Airlines
Mon 3/97:35 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 1/26![Porter Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:20 am
BOS
- YTZ
Nonstop1h 59m
Porter Airlines
Sun 5/108:50 am
YTZ
- BOS
Nonstop1h 41m
Porter Airlines
Deal found 1/26![Porter Airlines logo]()
$251
This Air Canada deal was found by Cheapflights users on 1/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/275:30 am
BOS
- YYZ
1 stop6h 10m
Air Canada
Sun 3/296:15 am
YYZ
- BOS
1 stop3h 37m
Air Canada
Deal found 1/26![Air Canada logo]()
$252
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:00 am
BOS
- YTZ
Nonstop1h 52m
Multiple Airlines
Mon 3/94:25 pm
YTZ
- BOS
1 stop5h 02m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$252
This Air Canada deal was found by Cheapflights users on 1/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1710:15 am
BOS
- YYZ
1 stop4h 25m
Air Canada
Wed 2/1811:00 am
YYZ
- BOS
1 stop3h 52m
Air Canada
Deal found 1/27![Air Canada logo]()
$253
Find flight deals from Boston to Ontario
Keep the following information in mind while searching for Boston to Ontario flight deals. Data was last updated January 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $200 (Flightnetwork) |
One-way from | $108 (Kiwi.com) |
Popular in | November |
Cheapest in | October |
Average price | $325 |
Good round-trip deal | $259 or less |
Good one-way deal | $172 or less |
Cheapflights Fare Finder
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 27, 2026.
Use the filters below to find and compare flights from Boston to Ontario that are best for you.
Fly from
Boston
Fly to
Ontario
Route
Depart
Return
Price
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Mon 4/27
6:45 pm-8:43 pm
Nonstop1h 58m
Toronto Pearson Intl
Wed 4/29
8:55 pm-10:38 pm
Nonstop1h 43m
$235
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Thu 4/23
6:15 am-8:08 am
Nonstop1h 53m
Toronto Pearson Intl
Sun 4/26
6:15 am-9:49 am
1 stop3h 34m
$244
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Tue 2/24
1:00 pm-3:00 pm
Nonstop2h 00m
Toronto Pearson Intl
Tue 3/3
2:00 pm-7:12 pm
1 stop5h 12m
$244
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Fri 4/3
6:15 am-8:08 am
Nonstop1h 53m
Toronto Pearson Intl
Sun 4/5
9:00 am-2:52 pm
1 stop5h 52m
$244
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Mon 2/23
9:00 am-10:57 am
Nonstop1h 57m
Toronto Island
Thu 2/26
9:30 am-11:05 am
Nonstop1h 35m
$254
BostonOttawa
BOS - YOW
BOSYOW
Boston Logan Intl
Mon 2/23
6:10 pm-5:25 pm
1 stop23h 15m
Ottawa
Mon 3/2
11:00 am-2:45 pm
1 stop3h 45m
$273
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Fri 5/1
6:15 pm-8:02 pm
Nonstop1h 47m
Toronto Island
Mon 5/4
3:50 pm-5:31 pm
Nonstop1h 41m
$274
BostonOttawa
BOS - YOW
BOSYOW
Boston Logan Intl
Thu 3/12
3:30 pm-4:59 pm
Nonstop1h 29m
Ottawa
Thu 3/19
8:40 am-2:45 pm
1 stop6h 05m
$276
BostonOttawa
BOS - YOW
BOSYOW
Boston Logan Intl
Wed 3/11
3:30 pm-4:59 pm
Nonstop1h 29m
Ottawa
Wed 3/18
4:40 pm-6:07 pm
Nonstop1h 27m
$280
BostonOttawa
BOS - YOW
BOSYOW
Boston Logan Intl
Mon 2/9
6:00 am-12:25 am
2 stops18h 25m
Ottawa
Wed 2/11
4:15 pm-10:26 am
1 stop18h 11m
$281
Showing 1-10 of 60 results
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.
Cheapflights Insights
Everything you need to know about your flight from Boston to Ontario
What is the cheapest month to book a flight from Boston to Region of Ontario?
Currently, March is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of $117). Flying from Boston to Region of Ontario in December is currently the most expensive (average of $217). 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 ON?
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 27, 2026.
A simple way to save on the total cost of your ticket is to fly from Boston to Region of Ontario in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the evening.
What is the cheapest day to fly from Boston to Region of Ontario?
Use this chart to determine the cheapest time to fly round-trip from Boston to Ontario. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their Boston to Region of Ontario flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Boston to Region of Ontario
Explore weekly flight availability from Boston to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 27, 2026.
The most flights from BOS to CAON are scheduled on a Monday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Boston to Region of Ontario?
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 27, 2026.
Read through reviews of airlines operating flights from Boston to Ontario, such as Porter Airlines, Delta, and Air Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.5
Boarding
8.2
Overall
7.9
Comfort
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Overall
7.9
Comfort
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Overall
7.9
Comfort
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Overall
7.9
Comfort
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Overall
7.9
Comfort
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
Food
7.5
Boarding
8.2
Overall
7.9
Comfort
7.9
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
8.0
ExcellentMohameed,Nov 2025
LAS - YYZ
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.
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 Boston to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
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 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$125 | Average$420 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$128 | Average$194 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$146 | Average$355 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$191 | Average$365 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$210 | Average$575 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$286 | Average$392 | FlexibilityNo cancel fee | On-time71% |