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CTT to BFI: distance & flight time
Le Castellet (Le Castellet Airport) → Seattle (Boeing Field King County International Airport)
5,413 mi
8,711 km · 4,704 nm
11h 5m
estimated nonstop flight time
-9h
time difference · heading northwest
See live CTT→BFI fares Phone-only fares on this route — call free
Flight time details
5,413 miles nonstop takes roughly 11h 5m 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
- CTT — Le Castellet Airport · Le Castellet, France
- 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 CTT
- TLN · Toulon-Hyères Airport21 mi away
- MRS · Marseille Provence Airport31 mi away
- LTT · La Môle Airport35 mi away
- FRJ · Fréjus Airport49 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 CTT from BFI?
The flight distance from Le Castellet (CTT) to Seattle (BFI) is 5,413 miles (8,711 km, 4,704 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CTT to BFI?
A nonstop flight takes about 11h 5m 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 Le Castellet and Seattle?
Seattle is 9 hours behind Le Castellet.
What is the cheapest way to fly from CTT to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CTT–BFI that never appear on search engines, with no booking fees.