Your next trip, last seen at €129
Lowest observedPorter Airlines Canada · 1 stop · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €129, departing 12 Dec 2026 (Last checked: 24 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 83Check live prices for this route
- Airlines seen
- Air Canada, Air Transat, Delta Air Lines, Flair Airlines, Porter Airlines Canada, United Airlines, WestJet (7)
- Reported fastest flight
- 5h 28m
- Non-stop
- Yes
About this route
Explore the fares we observed from Calgary to Boston. Prices move often, so pick your dates to see the latest options.
- Route distance
- 3,366 km
- Reported fastest flight
- 5h 28m
- Seen on fares with a connection
- Porter Airlines Canada, Air Canada, Air Transat, WestJet
- Alternative airports
- PSM
Route-level information; individual journeys vary.
A clearer picture of your fare
Airport to city: straight-line distance
- Calgary International Airport (YYC) → Calgary, city gazetteer reference point (51.0447, -114.0719): ≈ 9 km.
- Portsmouth International Airport at Pease (PSM) → Boston, city gazetteer reference point (42.3584, -71.0598): ≈ 82 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Calgary to Boston: December 2026, from €129 (checked 24 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| November 2026 | €139 | 27 |
| December 2026 | €129 | 31 |
| January 2027 | €129 | 23 |
Lowest fare by day of the week
Cheapest day of the week from Calgary to Boston: Tuesday, from €129 (checked 24 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €131 | 12 |
| Tuesday | €129 | 12 |
| Wednesday | €129 | 12 |
| Thursday | €130 | 12 |
| Friday | €130 | 12 |
| Saturday | €129 | 11 |
| Sunday | €129 | 12 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Calgary to Boston by days until departure (31 to 60 days): €129 (checked 24 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €245 | 7 |
| 8 to 30 days | €139 | 21 |
| 31 to 60 days | €129 | 29 |
| 61 days or more | €129 | 26 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Calgary to Boston: Porter Airlines Canada, from €129 (checked 24 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Porter Airlines Canada | €129Dec 12, 2026 | 50 |
| Air Canada | €132Jan 9, 2027 | 15 |
| Air Transat | €139Nov 24, 2026 | 13 |
| WestJet | €199Nov 30, 2026 | 4 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Calgary to Boston?
The lowest fare Routavio has observed is €129, found on 24 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Calgary to Boston?
Cheapest month from Calgary to Boston: December 2026, from €129 (checked 24 Oct 2026).
Which airlines fly from Calgary to Boston?
Routavio has seen these carriers on the route: Air Canada, Air Transat, Delta Air Lines, Flair Airlines, Porter Airlines Canada, United Airlines, WestJet (7).
How long does the flight from Calgary to Boston take?
Across the 82 fares Routavio observed, the average journey time is 9h 09m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which day of the week is cheapest from Calgary to Boston?
Cheapest day of the week from Calgary to Boston: Tuesday, from €129 (checked 24 Oct 2026).
Which airline has the lowest fare from Calgary to Boston?
Cheapest airline from Calgary to Boston: Porter Airlines Canada, from €129 (checked 24 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 24 Oct 2026