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CNG to BFI: distance & flight time
Cognac (Cognac-Châteaubernard (BA 709) Air Base) → Seattle (Boeing Field King County International Airport)
5,105 mi
8,216 km · 4,436 nm
10h 29m
estimated nonstop flight time
-9h
time difference · heading northwest
See live CNG→BFI fares Phone-only fares on this route — call free
Flight time details
5,105 miles nonstop takes roughly 10h 29m 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
- CNG — Cognac-Châteaubernard (BA 709) Air Base · Cognac, 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 CNG
- ANG · Angoulême-Brie-Champniers Airport26 mi away
- RYN · Royan-Médis Airport32 mi away
- RCO · Rochefort-Saint-Agnant (BA 721) Airport36 mi away
- NIT · Niort-Souché Airport45 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 CNG from BFI?
The flight distance from Cognac (CNG) to Seattle (BFI) is 5,105 miles (8,216 km, 4,436 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CNG to BFI?
A nonstop flight takes about 10h 29m 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 Cognac and Seattle?
Seattle is 9 hours behind Cognac.
What is the cheapest way to fly from CNG to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CNG–BFI that never appear on search engines, with no booking fees.