Find cheap airlines flights from Boston to Calgary

You can choose from 3 airlines that fly from Boston to Calgary, including WestJet, Porter Airlines, and Air Canada. WestJet has lowest fares on this route.
WestJet logo WestJet
Porter Airlines logo Porter Airlines
Air Canada logo Air Canada
Airlines are determined based on actual purchased flight tickets from Boston to Calgary according to previous 12 months data from Trip.com.

Book direct flights from Boston to Calgary: One way flights from $88, round trip flights from $297. Find flight deals for the next 3 months below.

Displayed flight fares from Boston to Calgary are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Boston to Calgary

The distance between Boston and Calgary is approximately 3,365.98 km. It takes around 5 hours 25 minutes on average to fly from Boston to Calgary. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price$88
Cheapest round-trip ticket price$280
Off-season for travelOctober
Peak season for travelJuly
Flight distance3,365.98 km
Average flight time5 hours 25 minutes
Popular airlineWestJet
Flight statistics for the Boston–Calgary route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Boston to Calgary

Which month has the cheapest one-way flights from Boston to Calgary?

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

Based on Trip.com’s data, the cheapest month for flights from Boston to Calgary is September, with an average price of $137; while the month with the highest flight price is usually March, with an average price of up to $617.

$617
$377
$137
0
    Cheapest
  • $464
    Feb
  • $617
    Mar
  • $152
    Apr
  • $142
    May
  • $199
    Jun
  • $335
    Jul
  • $193
    Aug
  • $137
    Sep
  • $168
    Oct
  • $566
    Nov
  • $291
    Dec
  • $327
    Jan

When is the cheapest day to fly from Boston to Calgary during Juneteenth National Independence Day?

Data is based on the lowest one-way price from Boston to Calgary during Juneteenth National Independence Day on Trip.com in the past 3 days.

Juneteenth National Independence Day is scheduled for Jun 19. The cheapest flights from Boston to Calgary are available on Jun 21, with fares starting at $101.

$478
$290
$101
0
    Cheapest
  • $443
    15
    Jun
  • $151
    16
  • $150
    17
  • $478
    18
  • $227
    19
  • $253
    20
  • $101
    21

Frequently Asked Questions

  • What are the cheapest flights from Boston to Calgary (BOS-YYC)?

    Based on Trip.com data, WestJet offers one-way fares as low as $88 on Cheapest nonstop routes (e.g. BOS to YYC on Wed, Aug 12), while WestJet offers Cheapest nonstop round-trips from $280 departing on Tue, Jul 28 and returning on Tue, Aug 4.
  • At the moment, you can catch a nonstop flight from Boston to Calgary with the following airlines, including: WestJet Delta Air Lines Air Canada Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 5 hours 25 minutes to fly from Boston (BOS) to Calgary (YYC).
  • 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 Calgary 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 7 flight per week flying from Boston to Calgary. You can check the weekly schedule for popular airlines on this route below: WestJet: S/M/T/W/T/F/S -- WS1625 (18:46) Delta Air Lines: S/M/T/W/T/F/S -- DL6874 (18:46)
  • To find best deals on flights from Boston to Calgary, 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 Wed, Aug 12, with one-way flights priced at just $88.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is WestJet.
    · 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 Calgary travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to Calgary is October, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Boston to Calgary on June 30, 2026 with WestJet, with prices starting at $222.
  • You can land at any one of the following hubs in Calgary, with Boston Logan International Airport to Calgary International Airport (BOS-YYC) is by far the most common option on this route: Calgary International Airport (YYC).
  • The time difference between Calgary and Boston is 2h.
  • Tickets can only be changed or canceled 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.

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

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
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.
Cancellation/change due to a flight schedule change:
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.