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IAG to SEA: distance & flight time
Niagara Falls (Niagara Falls International Airport) → Seattle (Seattle Tacoma International Airport)
2,102 mi
3,382 km · 1,826 nm
4h 35m
estimated nonstop flight time
-3h
time difference · heading northwest
See live IAG→SEA fares Phone-only fares on this route — call free
Flight time details
2,102 miles nonstop takes roughly 4h 35m gate to gate, flying northwest. 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
- IAG — Niagara Falls International Airport · Niagara Falls, United States
- 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 IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 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 IAG from SEA?
The flight distance from Niagara Falls (IAG) to Seattle (SEA) is 2,102 miles (3,382 km, 1,826 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAG to SEA?
A nonstop flight takes about 4h 35m 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 Niagara Falls and Seattle?
Seattle is 3 hours behind Niagara Falls.
What is the cheapest way to fly from IAG to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAG–SEA that never appear on search engines, with no booking fees.