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STI to SEA: distance & flight time
Santiago (Cibao International Airport) → Seattle (Seattle Tacoma International Airport)
3,469 mi
5,583 km · 3,014 nm
7h 16m
estimated nonstop flight time
-3h
time difference · heading northwest
See live STI→SEA fares Phone-only fares on this route — call free
Flight time details
3,469 miles nonstop takes roughly 7h 16m 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
- STI — Cibao International Airport · Santiago, Dominican Republic
- SEA — Seattle Tacoma 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 STI
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is STI from SEA?
The flight distance from Santiago (STI) to Seattle (SEA) is 3,469 miles (5,583 km, 3,014 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STI to SEA?
A nonstop flight takes about 7h 16m 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 Santiago and Seattle?
Seattle is 3 hours behind Santiago.
What is the cheapest way to fly from STI to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STI–SEA that never appear on search engines, with no booking fees.