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KLU to SEA: distance & flight time
Klagenfurt (Klagenfurt Airport) → Seattle (Seattle Tacoma International Airport)
5,429 mi
8,737 km · 4,718 nm
11h 7m
estimated nonstop flight time
-9h
time difference · heading northwest
See live KLU→SEA fares Phone-only fares on this route — call free
Flight time details
5,429 miles nonstop takes roughly 11h 7m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- KLU — Klagenfurt Airport · Klagenfurt, Austria
- 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 KLU
- LJU · Ljubljana Jože Pučnik Airport29 mi away
- GRZ · Graz Airport57 mi away
- MBX · Maribor Airport65 mi away
- TRS · Trieste–Friuli Venezia Giulia Airport70 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 KLU from SEA?
The flight distance from Klagenfurt (KLU) to Seattle (SEA) is 5,429 miles (8,737 km, 4,718 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLU to SEA?
A nonstop flight takes about 11h 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 Klagenfurt and Seattle?
Seattle is 9 hours behind Klagenfurt.
What is the cheapest way to fly from KLU to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLU–SEA that never appear on search engines, with no booking fees.