flight_takeoff SEA → IAH

Cheap Flights from Seattle to Houston

Compare fares on the medium-haul flight from Seattle to Houston — a southeastbound route of about 1,872 miles, typically flown nonstop in around 4h 15m.

Fares from $165 one-way, economy · as of Jul 7, 2026

straighten

Distance

1,872 mi

3,013 km

schedule

Est. flight time

4h 15m

nonstop

flight

Nonstop service

Available

4 carriers

language

Time difference

2 hours ahead

Houston

Flying from Seattle to Houston

Flights from Seattle Tacoma International Airport (SEA) to George Bush Intercontinental Houston Airport (IAH) cover roughly 1,872 miles (3,013 km) on a southeastbound heading, a nonstop flight of about 4h 15m. The route crosses 2 time zones — Houston is 2 hours ahead of Seattle. It's served by 4 airlines.

Lets Fly Travel compares live fares across hundreds of airlines to find the best deal on this route — and every booking is reviewed by a real travel agent before ticketing.

Airlines on this route

Airlines with recent nonstop fares on the SEA–IAH route (as of Jul 7, 2026):

flightAlaska flightAmerican flightDelta flightFrontier flightJetBlue flightUnited

Airline availability and fares change over time — search your dates for current options.

Best time to fly Seattle to Houston

Fare patterns and travel conditions vary by season. Here's what to expect on the SEA–IAH route throughout the year.

Jan–Feb

Post-holiday lull means some of the lowest fares of the year on the Seattle–Houston route. Great for a spontaneous escape.

Mar–May

Spring break drives demand on transcontinental routes like SEA–IAH. Book at least 4–6 weeks ahead for the best prices.

Jun–Aug

Summer is the busiest season for Seattle to Houston travel. Mid-week flights (Tue/Wed) typically undercut weekend fares by 15–25%.

Sep–Oct

Fares often drop after Labor Day. September and October are among the cheapest months to fly this medium-haul flight.

Nov–Dec

Thanksgiving week and the Christmas/New Year period see significant fare increases. Flexibility on exact dates can save considerably.

flight_land Arriving at

George Bush Intercontinental Houston Airport

Houston is served by George Bush Intercontinental Houston Airport (IATA: IAH , ICAO: KIAH). Allow time for baggage claim and ground transportation after landing.

IATA Code

IAH

Flight Time

~4h 15m

Distance

1,872 mi

tips_and_updates Arrival tips

›Check in online to save time at the airport.
›Arrive 2 hours before departure.
›Compare fares across several nearby dates for best value.

Seattle to Houston — FAQs

How long is the flight from Seattle to Houston? expand_more

A nonstop flight from Seattle (SEA) to Houston (IAH) takes approximately 4h 15m, covering a distance of about 1872 miles (3013 km). Actual flight time varies with aircraft, routing and winds.

How much is a flight from Seattle to Houston? expand_more

Recent one-way economy fares from Seattle to Houston have started around $165 (as of July 2026). Prices change frequently, so search live results for current fares.

Which airlines fly from Seattle to Houston? expand_more

Airlines with recent nonstop fares on the SEA–IAH route include Alaska, American, Delta, Frontier, JetBlue, United. Use our search to compare current carriers, schedules and fares.

Is there a nonstop flight from Seattle to Houston? expand_more

Yes. The SEA–IAH route has nonstop service. Nonstop availability can vary by season and day of week, so check live results for your dates.

How far is Houston from Seattle? expand_more

The distance from Seattle (SEA) to Houston (IAH) is about 1872 miles (3013 km) as the crow flies.

What is the time difference between Seattle and Houston? expand_more

Houston is 2 hours ahead of Seattle. Factor the time change into your arrival and connection planning.

When is the best time to book flights from Seattle to Houston? expand_more

For domestic routes like Seattle to Houston, booking about 1–3 months ahead and choosing mid-week departures usually finds the best prices. Avoid peak Friday and Sunday travel where possible.