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TGA to SEA: distance & flight time
Tengah (Tengah Air Base) → Seattle (Seattle Tacoma International Airport)
8,073 mi
12,993 km · 7,016 nm
16h 18m
estimated nonstop flight time
-15h
time difference · heading northeast
See live TGA→SEA fares Phone-only fares on this route — call free
Flight time details
8,073 miles nonstop takes roughly 16h 18m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- TGA — Tengah Air Base · Tengah, Singapore
- 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 TGA
- SIN · Singapore Changi Airport20 mi away
- XSP · Seletar Airport11 mi away
- QPG · Paya Lebar Air Base14 mi away
- JHB · Senai International Airport18 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 TGA from SEA?
The flight distance from Tengah (TGA) to Seattle (SEA) is 8,073 miles (12,993 km, 7,016 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TGA to SEA?
A nonstop flight takes about 16h 18m 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 Tengah and Seattle?
Seattle is 15 hours behind Tengah.
What is the cheapest way to fly from TGA to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TGA–SEA that never appear on search engines, with no booking fees.