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BFI to KTM: distance & flight time
Seattle (Boeing Field King County International Airport) → Kathmandu (Tribhuvan International Airport)
6,962 mi
11,204 km · 6,050 nm
14h 7m
estimated nonstop flight time
+12.8h
time difference · heading northwest
See live BFI→KTM fares Phone-only fares on this route — call free
Flight time details
6,962 miles nonstop takes roughly 14h 7m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12.8-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- KTM — Tribhuvan International Airport · Kathmandu, Nepal
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 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
Near KTM
- SIF · Simara Airport44 mi away
- RHP · Ramechhap Airport48 mi away
- BHR · Bharatpur Airport57 mi away
- MEY · Meghauli Airport70 mi away
Frequently asked questions
How far is BFI from KTM?
The flight distance from Seattle (BFI) to Kathmandu (KTM) 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 BFI to KTM?
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 Seattle and Kathmandu?
Kathmandu is 12.8 hours ahead of Seattle.
What is the cheapest way to fly from BFI to KTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–KTM that never appear on search engines, with no booking fees.