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KTM to BFI: distance & flight time
Kathmandu (Tribhuvan International Airport) → Seattle (Boeing Field King County International Airport)
6,962 mi
11,204 km · 6,050 nm
14h 7m
estimated nonstop flight time
-12.7h
time difference · heading north
See live KTM→BFI fares Phone-only fares on this route — call free
Flight time details
6,962 miles nonstop takes roughly 14h 7m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12.7-hour time set-back when reading arrival times on your ticket.
The two airports
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
- BFI — Boeing Field King County 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 KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is KTM from BFI?
The flight distance from Kathmandu (KTM) to Seattle (BFI) is 6,962 miles (11,204 km, 6,050 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KTM to BFI?
A nonstop flight takes about 14h 7m 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 Kathmandu and Seattle?
Seattle is 12.7 hours behind Kathmandu.
What is the cheapest way to fly from KTM to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KTM–BFI that never appear on search engines, with no booking fees.