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CND to BFI: distance & flight time
Constanta (Mihail Kogălniceanu International Airport) → Seattle (Boeing Field King County International Airport)
5,844 mi
9,405 km · 5,078 nm
11h 56m
estimated nonstop flight time
-10h
time difference · heading north
See live CND→BFI fares Phone-only fares on this route — call free
Flight time details
5,844 miles nonstop takes roughly 11h 56m gate to gate, flying north. 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
- CND — Mihail Kogălniceanu International Airport · Constanta, Romania
- 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 CND
- TCE · Tulcea Airport50 mi away
- VAR · Varna Airport85 mi away
- BBU · Băneasa International Airport118 mi away
- OTP · Henri Coandă International Airport119 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 CND from BFI?
The flight distance from Constanta (CND) to Seattle (BFI) is 5,844 miles (9,405 km, 5,078 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CND to BFI?
A nonstop flight takes about 11h 56m 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 Constanta and Seattle?
Seattle is 10 hours behind Constanta.
What is the cheapest way to fly from CND to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CND–BFI that never appear on search engines, with no booking fees.