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Cheap Flights from Boston to Toronto

Explore the cheapest flights from Boston to Toronto in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at S$ 122, and round-trip direct tickets start at S$ 256.

      • Cheapest nonstop
        BOS 20:30
        1h 47m
        Direct
        YTZ 22:17
        Boston - Toronto | Thu, May 21 | Porter Airlines
        YTZ 13:00
        1h 41m
        Direct
        BOS 14:41
        Toronto - Boston | Thu, May 28 | Porter Airlines
        S$ 256 S$ 345
        26% off
        26% off
        S$ 345 S$ 256
      • BOS 07:10
        1h 47m
        Direct
        YTZ 08:57
        Boston - Toronto | Sat, May 30 | Porter Airlines
        YTZ 13:00
        1h 41m
        Direct
        BOS 14:41
        Toronto - Boston | Fri, Jun 5 | Porter Airlines
        S$ 264 S$ 345
        23% off
        23% off
        S$ 345 S$ 264
      • BOS 05:10
        1h 53m
        Direct
        YYZ 07:03
        Boston - Toronto | Thu, May 21 | Air Canada
        YTZ 13:00
        1h 41m
        Direct
        BOS 14:41
        Toronto - Boston | Thu, May 28 | Porter Airlines
        S$ 266 S$ 345
        23% off
        23% off
        S$ 345 S$ 266
      • BOS 05:10
        1h 53m
        Direct
        YYZ 07:03
        Boston - Toronto | Tue, May 19 | Air Canada
        YTZ 09:00
        1h 41m
        Direct
        BOS 10:41
        Toronto - Boston | Tue, May 26 | Porter Airlines
        S$ 269
        22% off
        S$ 345 S$ 269
      • BOS 05:10
        1h 53m
        Direct
        YYZ 07:03
        Boston - Toronto | Wed, May 20 | Air Canada
        YTZ 09:00
        1h 41m
        Direct
        BOS 10:41
        Toronto - Boston | Wed, May 27 | Porter Airlines
        S$ 269
        22% off
        S$ 345 S$ 269
      • BOS 12:30
        1h 58m
        Direct
        YYZ 14:28
        Boston - Toronto | Mon, May 25 | Air Canada
        YYZ 20:55
        1h 44m
        Direct
        BOS 22:39
        Toronto - Boston | Mon, Jun 1 | Air Canada
        S$ 271
        21% off
        S$ 345 S$ 271
      • BOS 18:55
        1h 48m
        Direct
        YYZ 20:43
        Boston - Toronto | Sat, May 23 | Air Canada
        YTZ 09:00
        1h 41m
        Direct
        BOS 10:41
        Toronto - Boston | Wed, May 27 | Porter Airlines
        S$ 272
        21% off
        S$ 345 S$ 272
      • BOS 15:25
        6h 23m
        1 stop
        YTZ 21:48
        Boston - Toronto | Wed, May 20 | Porter Airlines
        YTZ 09:00
        1h 41m
        Direct
        BOS 10:41
        Toronto - Boston | Wed, May 27 | Porter Airlines
        S$ 257
        26% off
        S$ 345 S$ 257
      • BOS 15:25
        4h 59m
        1 stop
        YYZ 20:24
        Boston - Toronto | Tue, May 19 | Porter Airlines
        YTZ 09:00
        1h 41m
        Direct
        BOS 10:41
        Toronto - Boston | Tue, May 26 | Porter Airlines
        S$ 261
        24% off
        S$ 345 S$ 261
      • BOS 15:25
        4h 59m
        1 stop
        YYZ 20:24
        Boston - Toronto | Sat, May 23 | Porter Airlines
        YTZ 09:00
        1h 41m
        Direct
        BOS 10:41
        Toronto - Boston | Wed, May 27 | Porter Airlines
        S$ 263
        24% off
        S$ 345 S$ 263
      • BOS 13:00
        17h 25m
        1 stop
        YTO 14:00
        Boston - Toronto | Tue, May 19 | Normal Airline
        YTO 15:00
        6h
        Direct
        BOS 16:00
        Toronto - Boston | Thu, May 21 | Normal Airline
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      • Cheapest nonstop
        BOS 10:45
        1h 50m
        Direct
        YYZ 12:35
        Boston - Toronto | Mon, May 25 | Air Canada
        S$ 122 S$ 184
        34% off
        34% off
        S$ 184 S$ 122
      • BOS 10:50
        1h 55m
        Direct
        YYZ 12:45
        Boston - Toronto | Tue, Jun 23 | Air Canada
        S$ 126 S$ 184
        32% off
        32% off
        S$ 184 S$ 126
      • BOS 18:35
        1h 55m
        Direct
        YYZ 20:30
        Boston - Toronto | Thu, Jun 11 | Porter Airlines
        S$ 134 S$ 184
        27% off
        27% off
        S$ 184 S$ 134
      • BOS 07:10
        1h 47m
        Direct
        YTZ 08:57
        Boston - Toronto | Mon, Jun 15 | Porter Airlines
        S$ 139
        24% off
        S$ 184 S$ 139
      • BOS 18:35
        1h 55m
        Direct
        YYZ 20:30
        Boston - Toronto | Mon, May 25 | Apg Airlines
        S$ 140
        24% off
        S$ 184 S$ 140
      • BOS 18:55
        1h 48m
        Direct
        YYZ 20:43
        Boston - Toronto | Sun, Jun 7 | Air Canada
        S$ 140
        24% off
        S$ 184 S$ 140
      • BOS 09:35
        1h 54m
        Direct
        YTZ 11:29
        Boston - Toronto | Thu, Jul 2 | Air Canada
        S$ 143
        22% off
        S$ 184 S$ 143
      • BOS 18:55
        1h 48m
        Direct
        YYZ 20:43
        Boston - Toronto | Thu, Jun 11 | Air Canada
        S$ 144
        22% off
        S$ 184 S$ 144
      • BOS 05:10
        1h 53m
        Direct
        YYZ 07:03
        Boston - Toronto | Mon, Jun 15 | Air Canada
        S$ 145
        21% off
        S$ 184 S$ 145
      • BOS 15:25
        3h 33m
        1 stop
        YTZ 18:58
        Boston - Toronto | Tue, Jun 23 | Apg Airlines
        S$ 141
        23% off
        S$ 184 S$ 141
      • BOS 13:00
        17h 25m
        1 stop
        YTO 14:00
        Boston - Toronto | Tue, May 19 | Normal Airline
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Trip.com Price Insights on Flights from Boston to Toronto.

What is the cheapest month for one-way flights from to Toronto?

The average price of one-way flights from to Toronto purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from to Toronto is June, with an average price of S$ 212, and the most expensive month is October, with an average price of up to S$ 297.

S$ 297
S$ 255
S$ 212
S$ 170
    Cheapest
  • S$ 247
    May
  • S$ 212
    Jun
  • S$ 243
    Jul
  • S$ 287
    Aug
  • S$ 217
    Sep
  • S$ 297
    Oct
  • S$ 273
    Nov
  • S$ 255
    Dec
  • S$ 263
    Jan
  • S$ 241
    Feb
  • S$ 268
    Mar
  • S$ 284
    Apr

What is the cheapest month for round-trip flights from to Toronto?

The average price of round-trip flights from to Toronto purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for round-trip flights from to Toronto is October, with an average price of S$ 293, and the most expensive month is November, with an average price of up to S$ 579.

S$ 579
S$ 436
S$ 293
S$ 150
    Cheapest
  • S$ 518
    May
  • S$ 446
    Jun
  • S$ 368
    Jul
  • S$ 379
    Aug
  • S$ 360
    Sep
  • S$ 293
    Oct
  • S$ 579
    Nov
  • S$ 572
    Dec
  • S$ 462
    Jan
  • S$ 476
    Feb
  • S$ 390
    Mar
  • S$ 465
    Apr

What is the cheapest day to fly from Boston to Toronto during Hari Raya Haji?

Based on Trip.com's data over the past 3 days, these are the lowest one-way airfares from Boston to Toronto during Hari Raya Haji.

Hari Raya Haji is scheduled on May 27. The flights from Boston to Toronto are cheapest on May 29, with the lowest fare of S$ 153.

S$ 267
S$ 210
S$ 153
S$ 96
    Cheapest
  • S$ 267
    23
    May
  • S$ 267
    24
  • S$ 264
    25
  • S$ 158
    26
  • S$ 154
    27
  • S$ 154
    28
  • S$ 153
    29

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Boston (BOS) to Toronto (YTO)?

    Based on Trip.com data, Air Canada offers one-way fares as low as S$ 122 on Cheapest nonstop routes (e.g. BOS to YYZ on Mon, May 25), while Porter Airlines offers Cheapest nonstop round-trips from S$ 256 departing on Thu, May 21 and returning on Thu, May 28.
  • At the moment, you can catch a direct flight from Boston to Toronto with the following airlines, including: Air Canada Porter Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 1 hour 54 minutes to fly from Boston (BOS) to Toronto (YTO).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Toronto is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 32 flight per week flying from Boston to Toronto. You can check the weekly schedule for popular airlines on this route below: Porter Airlines: S/M/T/W/T/F/S -- PD2942 (11:31)
  • To find best deals on flights from Boston to Toronto, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, May 25, with one-way flights priced at just S$ 122.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Canada.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Toronto travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to Toronto is October, when demand for travel is lower.
  • After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Boston to Toronto on May 21, 2026 with Porter Airlines, with prices starting at S$ 256.
  • You can land at any one of the following hubs in Toronto, with Boston Logan International Airport to Toronto Pearson International Airport (BOS-YYZ) is by far the most common option on this route: Toronto Pearson International Airport (YYZ) John C. Munro Hamilton International Airport (YHM) Region of Waterloo International Airport (YKF) Billy Bishop Toronto City Airport (YTZ).
  • The time difference between Toronto and Boston is 0h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Find Cheap Flights & Deals on Trip.com

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.