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SEA to DEC: distance & flight time
Seattle (Seattle Tacoma International Airport) → Decatur (Decatur Airport)
1,738 mi
2,796 km · 1,510 nm
3h 52m
estimated nonstop flight time
+2h
time difference · heading east
See live SEA→DEC fares Phone-only fares on this route — call free
Flight time details
1,738 miles nonstop takes roughly 3h 52m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- DEC — Decatur Airport · Decatur, 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 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 SEA from DEC?
The flight distance from Seattle (SEA) to Decatur (DEC) is 1,738 miles (2,796 km, 1,510 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to DEC?
A nonstop flight takes about 3h 52m 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 Seattle and Decatur?
Decatur is 2 hours ahead of Seattle.
What is the cheapest way to fly from SEA to DEC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–DEC that never appear on search engines, with no booking fees.