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BFI to SIG: distance & flight time
Seattle (Boeing Field King County International Airport) → San Juan (Fernando Luis Ribas Dominicci Airport)
3,721 mi
5,989 km · 3,234 nm
7h 46m
estimated nonstop flight time
+3h
time difference · heading east
See live BFI→SIG fares Phone-only fares on this route — call free
Flight time details
3,721 miles nonstop takes roughly 7h 46m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- SIG — Fernando Luis Ribas Dominicci Airport · San Juan, Puerto Rico
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 SIG
- SJU · Luis Munoz Marin International Airport6 mi away
- FAJ · Diego Jimenez Torres Airport30 mi away
- NRR · José Aponte de la Torre Airport33 mi away
- ARE · Antonio Nery Juarbe Pol Airport38 mi away
Frequently asked questions
How far is BFI from SIG?
The flight distance from Seattle (BFI) to San Juan (SIG) is 3,721 miles (5,989 km, 3,234 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to SIG?
A nonstop flight takes about 7h 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 San Juan?
San Juan is 3 hours ahead of Seattle.
What is the cheapest way to fly from BFI to SIG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–SIG that never appear on search engines, with no booking fees.