$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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
Jun 23 — Jun 301
1 adult, Economy
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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
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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
Keep the following information in mind while searching for Boston to Ontario flight deals. Data was last updated June 18, 2025.
Round-trip from | $221 (Flightnetwork) |
|---|---|
One-way from | $108 (SmartFares) |
Popular in | November |
Cheapest in | July |
Average price | $302 |
Good round-trip deal | $233 or less |
Good one-way deal | $128 or less |
Find 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 June 18, 2025.
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 June 18, 2025.
This Mytrip deal was found by Cheapflights users on 6/18. 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 8/75:50 amBOS - YYZ
1 stop4h 50mAir Canada
Tue 8/128:55 pmYYZ - BOS
Nonstop1h 43mAir Canada
Deal found 6/18![Air Canada logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/183:30 pmBOS - YTZ
1 stop4h 12mPorter Airlines
Mon 7/219:50 amYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 6/16![Porter Airlines logo]()
$222
This FlightHub deal was found by Cheapflights users on 6/16. 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.
Mon 7/75:25 pmBOS - YTZ
Nonstop1h 49mMultiple Airlines
Tue 7/89:50 amYTZ - BOS
Nonstop1h 41mMultiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$240
This FlightHub deal was found by Cheapflights users on 6/16. 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.
Tue 9/163:30 pmBOS - YOW
Nonstop1h 28mPorter Airlines
Sun 9/214:30 pmYOW - BOS
Nonstop1h 28mPorter Airlines
Deal found 6/16![Porter Airlines logo]()
$250
This Air Canada deal was found by Cheapflights users on 6/17. 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.
Sat 8/165:50 amBOS - YTZ
1 stop5h 56mAir Canada
Tue 8/195:25 pmYTZ - BOS
1 stop4h 31mAir Canada
Deal found 6/17![Air Canada logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/155:25 pmBOS - YUL
1 stop4h 50mPorter Airlines
Fri 7/1810:45 amYUL - BOS
1 stop3h 56mPorter Airlines
Deal found 6/16![Porter Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 6/15. 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.
Wed 9/1011:00 amBOS - YYZ
1 stop6h 59mDelta
Sun 9/146:15 amYYZ - BOS
1 stop4h 11mDelta
Deal found 6/15![Delta logo]()
$264
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/168:39 pmBOS - YYZ
1 stop17h 26mMultiple Airlines
Tue 7/226:30 amYYZ - BOS
1 stop13h 04mMultiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$276
This Flightnetwork deal was found by Cheapflights users on 6/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/287:00 pmBOS - YUL
1 stop5h 41mAir Canada
Sun 6/298:10 amYUL - BOS
Nonstop1h 25mAir Canada
Deal found 6/16![Air Canada logo]()
$283
This Flightnetwork deal was found by Cheapflights users on 6/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1612:15 pmBOS - YUL
1 stop6h 10mMultiple Airlines
Wed 7/238:10 amYUL - BOS
Nonstop1h 25mMultiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 8/209:35 amBOS - YYZ
1 stop4h 12mUnited Airlines
Wed 8/277:30 amYYZ - BOS
1 stop5h 54mUnited Airlines
Deal found 6/16![United Airlines logo]()
$290
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/163:30 pmBOS - YOW
Nonstop1h 28mMultiple Airlines
Sun 9/214:30 pmYOW - BOS
Nonstop1h 28mMultiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$298
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 June 18, 2025.
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
Thu 8/7
5:50 am-10:40 am
1 stop4h 50m
Toronto Pearson Intl
Tue 8/12
8:55 pm-10:38 pm
Nonstop1h 43m
$220
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Fri 7/18
3:30 pm-7:42 pm
1 stop4h 12m
Toronto Island
Mon 7/21
9:50 am-11:31 am
Nonstop1h 41m
$222
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Fri 8/1
3:30 pm-7:42 pm
1 stop4h 12m
Toronto Island
Fri 8/8
5:25 pm-9:56 pm
1 stop4h 31m
$239
BostonOttawa
BOS - YOW
BOSYOW
Boston Logan Intl
Tue 9/16
3:30 pm-4:58 pm
Nonstop1h 28m
Ottawa
Sun 9/21
4:30 pm-5:58 pm
Nonstop1h 28m
$250
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Sat 8/16
5:50 am-11:46 am
1 stop5h 56m
Toronto Island
Tue 8/19
5:25 pm-9:56 pm
1 stop4h 31m
$258
BostonMontreal
BOS - YUL
BOSYUL
Boston Logan Intl
Tue 7/15
5:25 pm-10:15 pm
1 stop4h 50m
Montreal Pierre Elliott Trudeau Intl
Fri 7/18
10:45 am-2:41 pm
1 stop3h 56m
$261
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Wed 9/10
11:00 am-5:59 pm
1 stop6h 59m
Toronto Pearson Intl
Sun 9/14
6:15 am-10:26 am
1 stop4h 11m
$264
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Wed 7/16
8:39 pm-2:05 pm
1 stop17h 26m
Toronto Pearson Intl
Tue 7/22
6:30 am-7:34 pm
1 stop13h 04m
$276
BostonMontreal
BOS - YUL
BOSYUL
Boston Logan Intl
Sat 6/28
7:00 pm-12:41 am
1 stop5h 41m
Montreal Pierre Elliott Trudeau Intl
Sun 6/29
8:10 am-9:35 am
Nonstop1h 25m
$283
BostonMontreal
BOS - YUL
BOSYUL
Boston Logan Intl
Wed 7/16
12:15 pm-6:25 pm
1 stop6h 10m
Montreal Pierre Elliott Trudeau Intl
Wed 7/23
8:10 am-9:35 am
Nonstop1h 25m
$288
Showing 1-10 of 57 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, January is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of $243). Flying from Boston to Region of Ontario in July is currently the most expensive (average of $350). 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 June 18, 2025.
When flying from Boston to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 June 18, 2025.
The most flights from BOS to CAON are scheduled on a Wednesday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
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 Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 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 Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 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 June 18, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta and Air Transat from Boston to Ontario to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Entertainment
7.0
Overall
8.0
Boarding
8.2
Comfort
8.1
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Crew
8.7
Entertainment
7.0
Overall
8.0
Boarding
8.2
Comfort
8.1
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Crew
8.7
Entertainment
7.0
Overall
8.0
Boarding
8.2
Comfort
8.1
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Crew
8.7
Entertainment
7.0
Overall
8.0
Boarding
8.2
Comfort
8.1
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Crew
8.7
Entertainment
7.0
Overall
8.0
Boarding
8.2
Comfort
8.1
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - YYZ
Crew
8.7
Entertainment
7.0
Overall
8.0
Boarding
8.2
Comfort
8.1
Food
7.6
Reviews
1 / 20
4.0
OkayMary,Jun 2025
FLL - 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.
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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.
Top 5 airlines flying from Boston to Ontario
Discover the top 5 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 June 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$127 | Average$415 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$139 | Average$543 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$165 | Average$360 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$240 | Average$377 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$263 | Average$337 | FlexibilityNo cancel fee | On-time50% |