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QLF to SEA: distance & flight time
Vesivehmaa (Lahti Vesivehmaa Airport) → Seattle (Seattle Tacoma International Airport)
4,725 mi
7,604 km · 4,106 nm
9h 44m
estimated nonstop flight time
-10h
time difference · heading northwest
See live QLF→SEA fares Phone-only fares on this route — call free
Flight time details
4,725 miles nonstop takes roughly 9h 44m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time set-back when reading arrival times on your ticket.
The two airports
- QLF — Lahti Vesivehmaa Airport · Vesivehmaa, Finland
- 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 QLF
- HYV · Hyvinkää Airfield43 mi away
- UTI · Utti Air Base45 mi away
- KEV · Halli Airport58 mi away
- HEL · Helsinki Vantaa Airport62 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 QLF from SEA?
The flight distance from Vesivehmaa (QLF) to Seattle (SEA) is 4,725 miles (7,604 km, 4,106 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from QLF to SEA?
A nonstop flight takes about 9h 44m 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 Vesivehmaa and Seattle?
Seattle is 10 hours behind Vesivehmaa.
What is the cheapest way to fly from QLF to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on QLF–SEA that never appear on search engines, with no booking fees.