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SEA to SIN: distance & flight time
Seattle (Seattle Tacoma International Airport) → Singapore (Singapore Changi Airport)
8,065 mi
12,979 km · 7,008 nm
16h 17m
estimated nonstop flight time
+15h
time difference · heading northwest
See live SEA→SIN fares Phone-only fares on this route — call free
Flight time details
8,065 miles nonstop takes roughly 16h 17m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- SIN — Singapore Changi Airport · Singapore, Singapore
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
Near SIN
- QPG · Paya Lebar Air Base6 mi away
- XSP · Seletar Airport10 mi away
- BTH · Hang Nadim International Airport18 mi away
- TGA · Tengah Air Base20 mi away
Frequently asked questions
How far is SEA from SIN?
The flight distance from Seattle (SEA) to Singapore (SIN) is 8,065 miles (12,979 km, 7,008 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to SIN?
A nonstop flight takes about 16h 17m 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 Singapore?
Singapore is 15 hours ahead of Seattle.
What is the cheapest way to fly from SEA to SIN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–SIN that never appear on search engines, with no booking fees.