Cheap flights from Seattle to Houston
1,872 mi · 45m average nonstop
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Quick answer: Seattle to Houston at a glance
Cheap flights from Seattle (SEA) to Houston (IAH) cover 1,872 miles (3,012 km) in about 45m nonstop, with 4 airlines flying direct — a long-haul international route. Search Kayak for today's cheapest live fare. Route difficulty 5/10.
Summary computed from real OpenFlights coordinates — not an estimate. Prices update live on Kayak.
Flying from Seattle to Houston covers 1,872 miles (3,012 km) in approximately 0 hour 45 minutes. 4 airlines offer direct flights on this long-haul international route. This is a long-haul international route requiring advance planning for connections and layovers.
Nonstop distance 1,872 miles. Direct carriers include AS, CM, DL and UA.
We don't track historical prices for this route yet. Search live fares on Kayak for today's best price across 100+ airlines and booking sites.
Airlines on this route
4 airlines fly Seattle → Houston. All are direct routes.
| Airline | Route type |
|---|---|
| AS | Direct |
| CM | Direct |
| DL | Direct |
| UA | Direct |
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Seattle to Houston — quick answers
How far is Seattle from Houston by plane?
The nonstop flight distance from Seattle (SEA) to Houston (IAH) is 1,872 miles (3,012 km), calculated as a great-circle line from published OpenFlights airport coordinates. Actual flown distance is slightly longer due to airways and winds.
How long is the flight from Seattle to Houston?
The average nonstop flight time from SEA to IAH is 45 minutes. Gate-to-gate time is usually 20–35 minutes longer; connecting itineraries add 1–4 hours depending on the layover.
Which airlines fly from Seattle to Houston?
4 airlines serve this route nonstop: AS, CM, DL, UA. Schedules and amenities differ by carrier — compare live frequencies and fare classes on Kayak before you book.