Wayfli › Seattle (SEA) › To Houston (IAH)
Seattle (SEA) to Houston (IAH) flights
There are direct flights from Seattle Tacoma International Airport to George Bush Intercontinental Houston Airport, sold by 3 airlines (including codeshares): Alaska Airlines, Copa Airlines and United Airlines. The distance is 3,013 km, about 4h 10m in the air. There are also 26 one-stop options, via airports such as Dallas-Fort Worth, Denver and Los Angeles.
Live fares for SEA → IAHSee all routes on the map3,013 kmdistance
~4h 10mdirect flight time (estimate)
3direct airlines
26one-stop options
Direct flights from Seattle to Houston
| Route | Airlines (incl. codeshares) | Distance | Time (est.) |
|---|---|---|---|
| SEA → IAH | Alaska Airlines, Copa Airlines, United Airlines | 3,013 km | ~4h 10m |
Best one-stop connections
Through the biggest hubs first. Times include about 100 minutes to change planes.
| Via | Airlines | Distance | Time (est.) |
|---|---|---|---|
| DFW Dallas-Fort Worth | American Airlines and Alaska Airlines then American Airlines and United Airlines | 3,030 km | ~6h 20m |
| DEN Denver | American Airlines and Alaska Airlines then Frontier Airlines and United Airlines | 3,033 km | ~6h 20m |
| LAX Los Angeles | American Airlines and Alaska Airlines then American Airlines and Alaska Airlines | 3,752 km | ~7h 15m |
| LAS Las Vegas | Alaska Airlines and Southwest Airlines then United Airlines | 3,358 km | ~6h 45m |
| SFO San Francisco | American Airlines and Alaska Airlines then United Airlines | 3,720 km | ~7h 10m |
| PHX Phoenix | American Airlines and Alaska Airlines then American Airlines and United Airlines | 3,403 km | ~6h 50m |
| YVR Vancouver | American Airlines and Air Canada then United Airlines | 3,374 km | ~6h 45m |
| YYC Calgary | Alaska Airlines then Air Canada and United Airlines | 3,538 km | ~7h |
| PDX Portland | Alaska Airlines and United Airlines then Alaska Airlines and United Airlines | 3,142 km | ~6h 30m |
| SAN San Diego | American Airlines and Alaska Airlines then United Airlines | 3,785 km | ~7h 15m |
| STL St. Louis | American Airlines and Alaska Airlines then United Airlines | 3,820 km | ~7h 20m |
| MSP Minneapolis | Alaska Airlines and Sun Country Airlines then United Airlines | 3,912 km | ~7h 25m |
More from Seattle and Houston
- Houston (IAH) to Seattle (SEA) · return route
- All direct flights from Seattle (SEA)
- All direct flights from Houston (IAH)
- Seattle to Istanbul (IST)
- Seattle to Amsterdam (AMS)
- Seattle to Paris (CDG)
- Seattle to Frankfurt (FRA)
- Seattle to Dubai (DXB)
- Seattle to Beijing (PEK)
- Seattle to Chicago (ORD)
- Seattle to Dallas-Fort Worth (DFW)
- Seattle to Shanghai (PVG)
- Seattle to London (LHR)
- Seattle to Atlanta (ATL)
- Seattle to New York (JFK)
- Istanbul (IST) to Houston
- Amsterdam (AMS) to Houston
- Paris (CDG) to Houston
- Frankfurt (FRA) to Houston
- Dubai (DXB) to Houston
- Beijing (PEK) to Houston
- Chicago (ORD) to Houston
- Dallas-Fort Worth (DFW) to Houston
- Rome (FCO) to Houston
- Munich (MUC) to Houston
- London (LHR) to Houston
- Atlanta (ATL) to Houston
Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.