Need help booking?
Unpublished phone-only deals available
COZ to BFI: distance & flight time
Constanza (Constanza - Expedición 14 de Junio National Airport) → Seattle (Boeing Field King County International Airport)
3,490 mi
5,616 km · 3,033 nm
7h 19m
estimated nonstop flight time
-3h
time difference · heading northwest
See live COZ→BFI fares Phone-only fares on this route — call free
Flight time details
3,490 miles nonstop takes roughly 7h 19m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- COZ — Constanza - Expedición 14 de Junio National Airport · Constanza, Dominican Republic
- 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 COZ
- STI · Cibao International Airport35 mi away
- BRX · Maria Montez International Airport52 mi away
- JBQ · La Isabela International Airport53 mi away
- HEX · Herrera Airport58 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 COZ from BFI?
The flight distance from Constanza (COZ) to Seattle (BFI) is 3,490 miles (5,616 km, 3,033 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from COZ to BFI?
A nonstop flight takes about 7h 19m 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 Constanza and Seattle?
Seattle is 3 hours behind Constanza.
What is the cheapest way to fly from COZ to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on COZ–BFI that never appear on search engines, with no booking fees.