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BTC to SEA: distance & flight time
Batticaloa (Batticaloa Airport) → Seattle (Seattle Tacoma International Airport)
8,353 mi
13,443 km · 7,259 nm
16h 51m
estimated nonstop flight time
-12.5h
time difference · heading north
See live BTC→SEA fares Phone-only fares on this route — call free
Flight time details
8,353 miles nonstop takes roughly 16h 51m 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
- BTC — Batticaloa Airport · Batticaloa, 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 BTC
- ADP · Ampara Airport26 mi away
- HIM · Hingurakgoda Air Force Base53 mi away
- TRR · China Bay Airport67 mi away
- GIU · Sigiriya Air Force Base67 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 BTC from SEA?
The flight distance from Batticaloa (BTC) to Seattle (SEA) is 8,353 miles (13,443 km, 7,259 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BTC to SEA?
A nonstop flight takes about 16h 51m 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 Batticaloa and Seattle?
Seattle is 12.5 hours behind Batticaloa.
What is the cheapest way to fly from BTC to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BTC–SEA that never appear on search engines, with no booking fees.