Houston to Seattle flights

Routavio compares airline fares from several flight booking sites. Search Houston to Seattle to see the lowest price before you book.

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Lowest fare seen

€99Seen on 14 Oct 2026

Last checked

30 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €99

Lowest observed

9 Dec 2026

Frontier Airlines · 1 stop · One way

Cheapest observed day · Last checked: 14 Oct 2026

Departure

21:55

When to fly

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One-way fare

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Airlines seen: Alaska Airlines, United Airlines, Frontier Airlines
Reported fastest flight: 4h 56m
Non-stop: Yes

Short answer

Routavio has seen Alaska Airlines fares from Houston to Seattle, non-stop. These are prices Routavio's searches returned on the dates shown, not quotes; run a live search for today's fare. Lowest fare seen: €99 on 14 Oct 2026.

About this route

Explore the fares we observed from Houston to Seattle. Prices move often, so pick your dates to see the latest options.

Route distance: 3,039 km
Reported fastest flight: 4h 56m
Alternative airports: HOU, BFI

Route-level information; individual journeys vary.
Published schedules report non-stop service with Alaska Airlines, United Airlines. Check current timetables.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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How our prices work

Airport to city: straight-line distance

William P. Hobby Airport (HOU) → Houston, city gazetteer reference point (29.7628, -95.3831): ≈ 17 km.
George Bush Intercontinental Airport (IAH) → Houston, city gazetteer reference point (29.7628, -95.3831): ≈ 25 km.
King County International Airport - Boeing Field (BFI) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 9 km.
Seattle–Tacoma International Airport (SEA) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 18 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.

Frequently asked

How much was a flight from Houston to Seattle?

A fare of €99 was seen on 14 Oct 2026. Fares change, so search your dates for the current price.

Are there direct flights from Houston to Seattle?

Yes. Published schedules report non-stop flights on this route with Alaska Airlines, United Airlines.

Which airlines fly from Houston to Seattle?

Routavio has seen these carriers on the route: Alaska Airlines, United Airlines, Frontier Airlines.

How long does the flight from Houston to Seattle take?

Across the 84 fares Routavio observed, the average journey time is 16h, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

How many of the observed Houston to Seattle fares were non-stop?

6 of the 84 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide