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YMX to SEA: distance & flight time
Montreal (Montreal International (Mirabel) Airport) → Seattle (Seattle Tacoma International Airport)
2,259 mi
3,636 km · 1,963 nm
4h 54m
estimated nonstop flight time
-3h
time difference · heading west
See live YMX→SEA fares Phone-only fares on this route — call free
Flight time details
2,259 miles nonstop takes roughly 4h 54m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- YMX — Montreal International (Mirabel) Airport · Montreal, Canada
- SEA — Seattle Tacoma International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near YMX
- YUL · Montreal / Pierre Elliott Trudeau International Airport20 mi away
- YHU · Montréal / Saint-Hubert Airport32 mi away
- YJN · St Jean Airport45 mi away
- YCC · Cornwall Regional Airport48 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is YMX from SEA?
The flight distance from Montreal (YMX) to Seattle (SEA) is 2,259 miles (3,636 km, 1,963 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YMX to SEA?
A nonstop flight takes about 4h 54m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Montreal and Seattle?
Seattle is 3 hours behind Montreal.
What is the cheapest way to fly from YMX to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YMX–SEA that never appear on search engines, with no booking fees.