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SEA to IAH: distance & flight time
Seattle (Seattle Tacoma International Airport) → Houston (George Bush Intercontinental Houston Airport)
1,872 mi
3,013 km · 1,627 nm
4h 8m
estimated nonstop flight time
+2h
time difference · heading southeast
See live SEA→IAH fares Phone-only fares on this route — call free
Flight time details
1,872 miles nonstop takes roughly 4h 8m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- IAH — George Bush Intercontinental Houston Airport · Houston, 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 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
Near IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
Frequently asked questions
How far is SEA from IAH?
The flight distance from Seattle (SEA) to Houston (IAH) is 1,872 miles (3,013 km, 1,627 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to IAH?
A nonstop flight takes about 4h 8m 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 Houston?
Houston is 2 hours ahead of Seattle.
What is the cheapest way to fly from SEA to IAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–IAH that never appear on search engines, with no booking fees.