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ADP to SEA: distance & flight time
Galoya (Ampara Airport) → Seattle (Seattle Tacoma International Airport)
8,378 mi
13,484 km · 7,281 nm
16h 54m
estimated nonstop flight time
-12.5h
time difference · heading north
See live ADP→SEA fares Phone-only fares on this route — call free
Flight time details
8,378 miles nonstop takes roughly 16h 54m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12.5-hour time set-back when reading arrival times on your ticket.
The two airports
- ADP — Ampara Airport · Galoya, Sri Lanka
- 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 ADP
- BTC · Batticaloa Airport26 mi away
- HIM · Hingurakgoda Air Force Base66 mi away
- GIU · Sigiriya Air Force Base75 mi away
- WRZ · Weerawila Airport80 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 ADP from SEA?
The flight distance from Galoya (ADP) to Seattle (SEA) is 8,378 miles (13,484 km, 7,281 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ADP to SEA?
A nonstop flight takes about 16h 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 Galoya and Seattle?
Seattle is 12.5 hours behind Galoya.
What is the cheapest way to fly from ADP to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ADP–SEA that never appear on search engines, with no booking fees.