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BFI to CSY: distance & flight time
Seattle (Boeing Field King County International Airport) → Cheboksary (Cheboksary Airport)
5,252 mi
8,453 km · 4,564 nm
10h 46m
estimated nonstop flight time
+10h
time difference · heading north
See live BFI→CSY fares Phone-only fares on this route — call free
Flight time details
5,252 miles nonstop takes roughly 10h 46m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- CSY — Cheboksary Airport · Cheboksary, Russia
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 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
Near CSY
- JOK · Yoshkar-Ola Airport47 mi away
- KZN · Kazan International Airport82 mi away
- ULY · Ulyanovsk East Airport130 mi away
- ULV · Ulyanovsk Baratayevka Airport131 mi away
Frequently asked questions
How far is BFI from CSY?
The flight distance from Seattle (BFI) to Cheboksary (CSY) is 5,252 miles (8,453 km, 4,564 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to CSY?
A nonstop flight takes about 10h 46m 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 Seattle and Cheboksary?
Cheboksary is 10 hours ahead of Seattle.
What is the cheapest way to fly from BFI to CSY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–CSY that never appear on search engines, with no booking fees.