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RDG to BFI: distance & flight time
Reading (Reading Regional Carl A Spaatz Field) → Seattle (Boeing Field King County International Airport)
2,321 mi
3,735 km · 2,017 nm
5h 1m
estimated nonstop flight time
-3h
time difference · heading northwest
See live RDG→BFI fares Phone-only fares on this route — call free
Flight time details
2,321 miles nonstop takes roughly 5h 1m 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
- RDG — Reading Regional Carl A Spaatz Field · Reading, 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 RDG
- PHL · Philadelphia International Airport52 mi away
- LNS · Lancaster Airport25 mi away
- CTH · Chester County G O Carlson Airport28 mi away
- UKT · Quakertown Airport31 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 RDG from BFI?
The flight distance from Reading (RDG) to Seattle (BFI) is 2,321 miles (3,735 km, 2,017 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RDG to BFI?
A nonstop flight takes about 5h 1m 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 Reading and Seattle?
Seattle is 3 hours behind Reading.
What is the cheapest way to fly from RDG to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RDG–BFI that never appear on search engines, with no booking fees.