Cheap flights from Houston to Seattle

One-way fares from $118 · HOU → SEA · prices found by travellers in the last 48 hours

Compare all dates Seattle → Houston
Cheapest fare
$118

Frontier Airlines · Wed, Jan 13

Cheapest month
January

from $118

Direct flights
Yes

Alaska Airlines

Flight time
4h 41m

3,040 km

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Cheapest month to fly from Houston to Seattle

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $131
  2. January 2027 Cheapest $118
  3. April 2027 $273

Cheapest dates in January 2027

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart20:51 Wed, Jan 13IAH → SEA 6h 37m · 1 stop
$118one way, per person
View deal
Southwest Airlines
Depart05:10 Sat, Jan 2HOU → SEA 5h 55m · 1 stop
$155one way, per person
View deal
See every date in January 2027 →

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About flights from Houston to Seattle

Houston (HOU) and Seattle (SEA) are about 3,040 km apart. Direct flights take around 4h 41m, and recent direct fares were with Alaska Airlines. Over the next few months, one-way fares start from $118, and January 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Houston to Seattle?

The cheapest one-way fare we've seen recently is $118 with Frontier Airlines, departing Wednesday, January 13, 2027. Over the coming months, the lowest fare in each month ranges from $118 to $273.

What is the cheapest month to fly from Houston to Seattle?

January 2027 currently has the lowest fares, from $118 one way.

Are there direct flights from Houston to Seattle?

Yes. Recent direct fares were with Alaska Airlines.

How long is the flight from Houston to Seattle?

A direct flight takes about 4h 41m. Houston and Seattle are around 3,040 km apart.

Which airlines fly from Houston to Seattle?

Recent fares on this route were with Frontier Airlines, Alaska Airlines and Southwest Airlines.

More cheap flights from Houston

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