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SEA to YHM: distance & flight time
Seattle (Seattle Tacoma International Airport) → Hamilton (John C. Munro Hamilton International Airport)
2,054 mi
3,306 km · 1,785 nm
4h 30m
estimated nonstop flight time
+3h
time difference · heading east
See live SEA→YHM fares Phone-only fares on this route — call free
Flight time details
2,054 miles nonstop takes roughly 4h 30m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- YHM — John C. Munro Hamilton International Airport · Hamilton, Canada
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 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
Near YHM
- YYZ · Lester B. Pearson International Airport38 mi away
- DU9 · Dunnville Airport27 mi away
- YKF · Waterloo Airport30 mi away
- YCM · Niagara District Airport38 mi away
Frequently asked questions
How far is SEA from YHM?
The flight distance from Seattle (SEA) to Hamilton (YHM) is 2,054 miles (3,306 km, 1,785 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to YHM?
A nonstop flight takes about 4h 30m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from SEA to YHM?
Nonstop service on SEA–YHM depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 4h 30m nonstop estimate.
What is the time difference between Seattle and Hamilton?
Hamilton is 3 hours ahead of Seattle.
What is the cheapest way to fly from SEA to YHM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–YHM that never appear on search engines, with no booking fees.
Why are some SEA to YHM fares phone-only?
Consolidator contracts let us sell certain SEA–YHM tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.