Need help booking?
Unpublished phone-only deals available
RIW to BFI: distance & flight time
Riverton WY (Riverton Regional Airport) → Seattle (Boeing Field King County International Airport)
739 mi
1,189 km · 642 nm
2h 4m
estimated nonstop flight time
-1h
time difference · heading northwest
See live RIW→BFI fares Phone-only fares on this route — call free
Flight time details
739 miles nonstop takes roughly 2h 4m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- RIW — Riverton Regional Airport · Riverton WY, United States
- 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 RIW
- LND · Hunt Field22 mi away
- WRL · Worland Municipal Airport67 mi away
- PWY · Ralph Wenz Field71 mi away
- BPI · Miley Memorial Field90 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 RIW from BFI?
The flight distance from Riverton WY (RIW) to Seattle (BFI) is 739 miles (1,189 km, 642 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RIW to BFI?
A nonstop flight takes about 2h 4m 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 Riverton WY and Seattle?
Seattle is 1 hour behind Riverton WY.
What is the cheapest way to fly from RIW to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RIW–BFI that never appear on search engines, with no booking fees.