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SEA to HAN: distance & flight time
Seattle (Seattle Tacoma International Airport) → Hanoi (Noi Bai International Airport)
6,831 mi
10,994 km · 5,936 nm
13h 52m
estimated nonstop flight time
+14h
time difference · heading northwest
See live SEA→HAN fares Phone-only fares on this route — call free
Flight time details
6,831 miles nonstop takes roughly 13h 52m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- HAN — Noi Bai International Airport · Hanoi, Vietnam
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 HAN
- HPH · Cat Bi International Airport65 mi away
- SQH · Na-San Airport114 mi away
- NEU · Sam Neua Airport125 mi away
Frequently asked questions
How far is SEA from HAN?
The flight distance from Seattle (SEA) to Hanoi (HAN) is 6,831 miles (10,994 km, 5,936 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to HAN?
A nonstop flight takes about 13h 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 Hanoi?
Hanoi is 14 hours ahead of Seattle.
What is the cheapest way to fly from SEA to HAN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–HAN that never appear on search engines, with no booking fees.