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DU9 to SEA: distance & flight time
Dunnville (Dunnville Airport) → Seattle (Seattle Tacoma International Airport)
2,078 mi
3,344 km · 1,806 nm
4h 32m
estimated nonstop flight time
—
time difference · heading northwest
See live DU9→SEA fares Phone-only fares on this route — call free
Flight time details
2,078 miles nonstop takes roughly 4h 32m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- DU9 — Dunnville Airport · Dunnville, 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 DU9
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 DU9 from SEA?
The flight distance from Dunnville (DU9) to Seattle (SEA) is 2,078 miles (3,344 km, 1,806 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DU9 to SEA?
A nonstop flight takes about 4h 32m 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 cheapest way to fly from DU9 to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DU9–SEA that never appear on search engines, with no booking fees.