Flights Montréal → Boston
As of November 2026, economy flights from Montréal to Boston have a typical range USD 196–826, median USD 354. Full range across all 97 offers: USD 156–2085. We analyzed 97 offers from 11 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Montréal → Boston
Based on 97 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Montréal → Boston
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Porter Airlines | Included | Included | — |
| Air Canada | — | — | — |
| American | — | USD 40 | — |
| Delta | — | USD 33 | — |
| United | — | USD 36 | — |
| United | Included | USD 35 | — |
| Air Canada | — | USD 32 | — |
| American Airlines | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| Air Transat | Included | — | — |
| WestJet | Included | USD 30 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Montréal to Boston cost?
Based on 97 offers · November 2026
Montréal to Boston flights ranged from USD 156 to USD 2085 across 97 offers analyzed in November 2026. The chart below shows how prices distributed across all 97 offers.
These 97 offers (November 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 261 and USD 555
What hidden fees do Montréal to Boston flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Montréal to Boston routes. The breakdown below is based on 97 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| PD | 10 | 5% |
| AC | 25 | 5% |
| American | 40 | 22% |
| Delta | 33 | 16% |
| United | 36 | 17% |
| UA | 43 | 14% |
| Air Canada | 32 | 15% |
| AA | 45 | 9% |
| DL | 30 | 4% |
| TS | 25 | 7% |
| WS | 42 | 8% |
American: base ~USD 138 + fees USD 40 = ~USD 178 total. Porter Airlines: base ~USD 167 + fees USD 10 = ~USD 177 total.
American's USD 40 ancillary fees narrow the gap with Porter Airlines's lower-fee model — the USD 29 base difference shrinks to USD 1 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.AA charges 4.5x more in ancillary fees than PD on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Montréal to Boston?
11 airlines flew Montréal to Boston in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (Porter Airlines), fares ranged USD 162–260 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Porter Airlines | 6 | 162–260 | 177 | 10 (6%) |
 American | 2 | — | 178 | 40 (22%) |
 Delta | 2 | — | 201 | 33 (16%) |
 United | 1 | — | 211 | 36 (17%) |
 Air Canada | 5 | — | 213 | 32 (15%) |
 United Airlines | 12 | 214–412 | 314 | 43 (14%) |
 Air Transat | 4 | 349–358 | 355 | 25 (7%) |
 Air Canada | 28 | 221–723 | 459 | 25 (5%) |
 WestJet | 6 | 488–595 | 491 | 42 (9%) |
 American Airlines | 8 | 301–665 | 554 | 45 (8%) |
 Delta Air Lines | 23 | 266–1319 | 555 | 30 (5%) |
Where do the best Montréal → Boston prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Montréal to Boston flights
- Full-service carriers on Montréal–Boston cost 0.7x more than budget airlines (USD 322 vs USD 491 median; overall median USD 354).
- AA charges 4.5x more in ancillary fees than PD — USD 45 vs USD 10 avg per booking.
- The same route priced USD 276 apart depending on where it was booked — the lowest median was USD 212. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Montréal to Boston cost?
- Based on 97 offers analyzed, Montréal to Boston flights range from USD 156 to USD 2085, with a median price of USD 354. Search for your specific dates →
- What hidden fees should I expect on Montréal to Boston flights?
- On average, ancillary fees (bags, seat selection) add USD 31 to the base fare on Montréal to Boston flights. See itemized fees for your itinerary →
- Which airline is cheapest on Montréal to Boston including all fees?
- Porter Airlines has the lowest median fare on Montréal to Boston at USD 177 (median across 6 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Montréal–Boston flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 212. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Montréal to Boston routes?
- Montréal to Boston has 11 airlines competing, creating a price range from USD 156 to USD 2085 across 97 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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