SeattleHoustonFlight TimeSEA–IAH
Seattle (Seattle-Tacoma International Airport) to Houston (George Bush Intercontinental Airport).
The flight from Seattle (SEA) to Houston (IAH) takes 3h 47m on average, covering about 2,008 miles. Across 4 flights we tracked, the fastest was 3h 35m and the slowest 3h 57m, with Alaska Airlines flying it most often.
Plan this routeAt a glance
| Avg flight time | Distance | Fastest tracked | Airlines |
|---|---|---|---|
| 3h 47m | 2,008 mi | 3h 35m | 2 |
Airlines on this route
Captured airlines for SEA to IAH
Our current provider sample includes 7-8/day from SEA to IAH across 2 captured airlines.
- First departure
- 05:00
- Last departure
- 23:59
- Cadence
- ~every 2 hours
- Captured departures/day
- 12
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| United Airlines | 4-5/day | Boeing 737, Airbus A320 family · Seat map | 05:0007:00 |
Aircraft we tracked
Methodology: figures are aggregated from 4 real flights on this route tracked between 2026-06-06 and 2026-06-18, sourced from live flight data. Updated daily as new flights are observed.
Route FAQ
How long is the flight from SEA to IAH?
The SEA to IAH flight takes 3h 47m on average based on 4 tracked flights.
How far is SEA from IAH?
SEA to IAH is about 2,008 miles by air.
Which airlines fly from SEA to IAH?
Alaska Airlines, United Airlines fly the SEA to IAH route in our tracked route data.
What aircraft fly from SEA to IAH?
Aircraft observed on SEA to IAH include Boeing 737-900, Airbus A320, Boeing 737 MAX 9.