Wayfli › Houston (IAH) › To Seattle (SEA)
Houston (IAH) to Seattle (SEA) flights
There are direct flights from George Bush Intercontinental Houston Airport to Seattle Tacoma International Airport, sold by 2 airlines (including codeshares): Alaska 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 IAH → SEASee all routes on the map3,013 kmdistance
~4h 10mdirect flight time (estimate)
2direct airlines
26one-stop options
Direct flights from Houston to Seattle
| Route | Airlines (incl. codeshares) | Distance | Time (est.) |
|---|---|---|---|
| IAH → SEA | Alaska 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 United Airlines then American Airlines and Alaska Airlines | 3,030 km | ~6h 20m |
| DEN Denver | Frontier Airlines and United Airlines then American Airlines and Alaska 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 | Frontier Airlines and United Airlines then Alaska Airlines and Southwest Airlines | 3,358 km | ~6h 45m |
| SFO San Francisco | Copa Airlines and United Airlines then American Airlines and Alaska Airlines | 3,720 km | ~7h 10m |
| PHX Phoenix | American Airlines and United Airlines then American Airlines and Alaska Airlines | 3,403 km | ~6h 50m |
| YVR Vancouver | United Airlines then American Airlines and Air Canada | 3,374 km | ~6h 45m |
| YYC Calgary | Air Canada and United Airlines then Alaska Airlines | 3,538 km | ~7h |
| PDX Portland | United Airlines then Alaska Airlines and United Airlines | 3,142 km | ~6h 30m |
| SAN San Diego | United Airlines then American Airlines and Alaska Airlines | 3,785 km | ~7h 15m |
| STL St. Louis | United Airlines then American Airlines and Alaska Airlines | 3,820 km | ~7h 20m |
| MSP Minneapolis | United Airlines then Air France and Alaska Airlines | 3,912 km | ~7h 25m |
More from Houston and Seattle
- Seattle (SEA) to Houston (IAH) · return route
- All direct flights from Houston (IAH)
- All direct flights from Seattle (SEA)
- Houston to Istanbul (IST)
- Houston to Amsterdam (AMS)
- Houston to Paris (CDG)
- Houston to Frankfurt (FRA)
- Houston to Dubai (DXB)
- Houston to Beijing (PEK)
- Houston to Chicago (ORD)
- Houston to Dallas-Fort Worth (DFW)
- Houston to Rome (FCO)
- Houston to Munich (MUC)
- Houston to London (LHR)
- Houston to Atlanta (ATL)
- Istanbul (IST) to Seattle
- Amsterdam (AMS) to Seattle
- Paris (CDG) to Seattle
- Frankfurt (FRA) to Seattle
- Dubai (DXB) to Seattle
- Beijing (PEK) to Seattle
- Chicago (ORD) to Seattle
- Dallas-Fort Worth (DFW) to Seattle
- Shanghai (PVG) to Seattle
- London (LHR) to Seattle
- Atlanta (ATL) to Seattle
- New York (JFK) to Seattle
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.