SEA - IAH

$178 Find Cheap Flights from Seattle to Houston George Bush Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$267
Typical prices: $300-$557
Frontier
Mon 10/15Sat 10/20
SEA - IAH • 1 stop
Cheapest non-stop
$337
Typical prices: $334-$584
Alaska Airlines
Sun 9/30Sat 10/6
SEA - IAH • Non-stop
Nonstop flights
You can fly direct with United Airlines and Alaska Airlines. Average duration is 4h 24m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 19 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $208 (round-trip)
Shortest trip • 6h 35m (one-way)
Insights
Insights
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We hope you love your trip to Houston George Bush Intcntl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to George Bush Intcntl (SEA-IAH)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to George Bush Intcntl

Thu, Oct 15 - Tue, Oct 20
Frontier Logo
4:27 pm - 12:40 amSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
6h 13m1 stop Denver Intl
Frontier Logo
2:41 pm - 6:45 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
30h 04m2 stops Las Vegas Harry Reid Intl Los Angeles Los Angeles
$267Frontier
Wed, Oct 14 - Sat, Oct 17
Frontier Logo
8:00 pm - 11:26 amSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
13h 26m1 stop Los Angeles Los Angeles
Frontier Logo
7:20 am - 8:58 amIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
27h 38m1 stop Las Vegas Harry Reid Intl
$268Frontier
Wed, Sep 30 - Tue, Oct 6
Multiple Airlines Logo
5:34 pm - 11:59 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 25mnonstop
Multiple Airlines Logo
10:30 am - 3:08 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
6h 38m1 stop Denver Intl
$298Multiple Airlines
Tue, Sep 22 - Tue, Oct 6
Multiple Airlines Logo
5:34 pm - 11:59 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 25mnonstop
Multiple Airlines Logo
10:30 am - 3:08 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
6h 38m1 stop Denver Intl
$298Multiple Airlines
Tue, Sep 29 - Wed, Sep 30
United Airlines Logo
7:17 am - 1:40 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 23mnonstop
United Airlines Logo
9:57 am - 12:48 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
4h 51mnonstop
$337United Airlines
Tue, Sep 22 - Tue, Oct 6
United Airlines Logo
5:00 pm - 11:24 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 24mnonstop
United Airlines Logo
9:57 am - 12:48 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
4h 51mnonstop
$337United Airlines
Tue, Sep 22 - Sat, Oct 3
Alaska Airlines Logo
10:41 am - 5:13 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 32mnonstop
Alaska Airlines Logo
2:55 pm - 5:42 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
4h 47mnonstop
$337Alaska Airlines
Mon, Sep 21 - Tue, Oct 6
Alaska Airlines Logo
5:34 pm - 11:59 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
4h 25mnonstop
Alaska Airlines Logo
2:55 pm - 5:42 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
4h 47mnonstop
$337Alaska Airlines
Thu, Dec 24 - Tue, Jan 5
American Airlines Logo
2:04 pm - 11:59 pmSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
7h 55m1 stop Dallas/Fort Worth
American Airlines Logo
4:34 pm - 10:31 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
7h 57m1 stop Los Angeles Los Angeles
$357American Airlines
Fri, Nov 6 - Mon, Nov 9
American Airlines Logo
3:41 pm - 12:06 amSEA  Seattle/Tacoma Intl-IAH Houston George Bush Intcntl
6h 25m1 stop Dallas/Fort Worth
American Airlines Logo
6:56 pm - 11:42 pmIAH  Houston George Bush Intcntl-SEA Seattle/Tacoma Intl
6h 46m1 stop Dallas/Fort Worth
$372American Airlines
Booking Insights

Price, demand and travel trends for Seattle to Houston George Bush Intcntl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Houston George Bush Intcntl Airport with more confidence.

How much is a round-trip flight from Seattle to Houston George Bush Intcntl Airport?

Round-trip flights from Seattle to Houston George Bush Intcntl Airport start at $267. Prices are below average for this route right now, with typical round-trip fares ranging from $300 to $557. The lowest price found in the past 5 days was $267 on Frontier.

What's the cheapest day of the week to fly from Seattle to Houston George Bush Intcntl Airport?

Tuesday is the cheapest day of the week to fly from Seattle to Houston George Bush Intcntl Airport, it is 7% cheaper than the average day. Monday is the most expensive day with flight prices 18% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Seattle to Houston George Bush Intcntl Airport?

  • October is the cheapest month to fly from Seattle to Houston George Bush Intcntl Airport at $338 round-trip.
  • June ($495) and July ($484) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 46% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Houston George Bush Intcntl Airport the cheapest?

Flights from Seattle to Houston George Bush Intcntl Airport are cheapest 19 weeks before departure. Booking in this window typically costs about 52% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Seattle to George Bush Intcntl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Key details for Seattle to Houston George Bush Intcntl Airport flights

Low season

July

Cheapest flight

$178
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from Seattle to Houston George Bush Intcntl Airport

When to book flights from Seattle to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Seattle to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Houston George Bush Intcntl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Is IAH accessible for reduced mobility travelers?

    Yes. IAH offers services for easy use by reduced mobility travelers. It has accessible concourses and platforms alongside wheelchair lifts for easy access. Its inter-terminal connector trains are also wheelchair accessible. All the airport restrooms are also wheelchair accessible. Service restrooms are also welcome at the airport. The airport also provides TTY phones for customers in wheelchairs and with vision and hearing problems.

  • How do I get from IAH to the city center?

    From IAH, you can get to the city center with several options. You can take the metro from the airport to downtown. Alternatively, you can take a shuttle, a taxi or car rental from the airport to the city center. Car rentals are available at the Consolidated Rental Car Facility available onsite.

  • Are there direct flights from SEA to IAH?

    Yes. Several airlines provide direct flights. They include Spirit Airlines, Alaska Airlines, and United Airlines. Alternatively, you can catch one-stop flights provided by Spirit Airlines with a layover in Los Angeles.

  • Does SEA have a lounge?

    SEA has 12 passenger lounges. Some are airline lounges that are exclusively for first and business-class travelers. They include Delta Sky Club in South satellite Terminal near Gate S9 and one in Concourse A near Gate A1. Others include British Airways Terraces Lounge in the South Terminal near Gate S9 and Concourse B alongside the Centurion Lounge. Alaska Airlines Lounge and The Club at SEA let you pay at the entrance gate regardless of your travel class.

  • Which airlines offer extra legroom and free seat selection on Seattle to Houston George Bush Intcntl Airport flights?

    Among airlines operating Seattle to Houston George Bush Intcntl Airport flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Seattle to Houston George Bush Intcntl Airport?

    2 airlines operate flights between Seattle and Houston George Bush Intcntl Airport. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Alaska Airlines

  • Which airports can I use when flying from Seattle to Houston George Bush Intcntl Airport?

    Flights from Seattle to Houston George Bush Intcntl Airport usually depart from Seattle/Tacoma Intl (SEA) and arrive at Houston George Bush Intcntl (IAH).

  • Which airlines include bags at no extra cost on Seattle to Houston George Bush Intcntl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Seattle to Houston George Bush Intcntl Airport?

    Four cabin classes are available on flights from Seattle to Houston George Bush Intcntl Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from Seattle to Houston George Bush Intcntl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $208 round-trip via Los Angeles Los Angeles (LAX), compared to $445 for nonstop.

  • What is the standard checked-bag allowance on flights from Seattle to Houston George Bush Intcntl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Seattle to Houston George Bush Intcntl Airport?

    The Boeing 737-800 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Boeing 737-900 variants.

  • Which airports do connecting flights from Seattle to Houston George Bush Intcntl Airport pass through?

    One-stop flights from Seattle to Houston George Bush Intcntl Airport most commonly connect through:

    • Denver Intl (DEN) - 73% of one-stop connections
    • Dallas/Fort Worth (DFW) - 12% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 6% of one-stop connections
    • Salt Lake City (SLC) - 4% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Houston George Bush Intcntl Airport?

    Yes. Being flexible with your travel dates can save you up to 22% on the Seattle to Houston George Bush Intcntl Airport route. Tuesday is the cheapest departure day at $394 round-trip on average, while Monday is the most expensive at $499, a difference of $105. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Seattle to Houston George Bush Intcntl Airport spread across the day?

    Morning is the busiest departure period on Seattle to Houston George Bush Intcntl Airport flights, with 34% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 17%, and night flights for 16%.

  • What popular places can I visit in Houston George Bush Intcntl Airport?

    Some of the most popular sights in Houston George Bush Intcntl Airport are Downtown Houston, George R. Brown Convention Center and Galleria Mall. These are among the most viewed places in Houston George Bush Intcntl Airport on KAYAK.

  • What are the earliest and latest flights from Seattle to Houston George Bush Intcntl Airport?

    These are the earliest and latest flight times available from Seattle to Houston George Bush Intcntl Airport:

    • Earliest: departs at 7:00 am and lands at 11:24 am
    • Latest: departs at 11:59 pm and lands at 4:23 am.

    The flight takes about 4h 24m.

  • How expensive are last-minute Seattle to Houston George Bush Intcntl Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 66% above the route average of $421. Book 19 weeks before departure for the lowest fares.

  • How long is a flight from Seattle to Houston George Bush Intcntl Airport?

    A nonstop flight from Seattle to Houston George Bush Intcntl Airport takes 4h 24m, covering 1,871 miles.

  • Do I need a passport to fly from Seattle to Houston George Bush Intcntl Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Seattle to Houston George Bush Intcntl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $267 to $2,399. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Seattle to Houston George Bush Intcntl Airport looking right now?

    One-way fares from Seattle to Houston George Bush Intcntl Airport are currently lower than usual. Average one-way flight prices are about $183, which is 28% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Seattle to Houston George Bush Intcntl Airport?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 6h 35m, compared with 6h 43m via Dallas/Fort Worth (DFW) and 10h 35m via Phoenix Sky Harbor Intl (PHX).

  • What is the time difference between Seattle and Houston George Bush Intcntl Airport?

    Houston George Bush Intcntl Airport is 2 hours ahead of Seattle (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Houston George Bush Intcntl Airport (IAH)?

    Houston George Bush Intcntl Airport (IAH) hosts 5 major car rental companies, with daily rates starting from around $3 for economy cars. Top options include:
    · ACO Rent A Car
    · Easirent
    · America Car Rental
    · Hertz
    · Thrifty

  • How much should I expect to pay for a Seattle to Houston George Bush Intcntl Airport flight?

    Round-trip flights from Seattle to Houston George Bush Intcntl Airport range from $300 to $557, with an average of $421 over the past 12 months. Anything below $300 counts as a good deal.

  • Which airlines offer Wi-Fi on Seattle to Houston George Bush Intcntl Airport flights?

    Alaska Airlines is the only airline on the Seattle to Houston George Bush Intcntl Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking Seattle to Houston George Bush Intcntl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Monday. On this route, Tuesday flights average $394 - about $105 less than Monday (21% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 19 weeks before you fly. On this route, that window historically saves about 52% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Houston George Bush Intcntl Airport trip for October. Fares historically average $338 round-trip in that month - typically $157 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Los Angeles Los Angeles Airport (LAX) can be cheaper than flying direct. The cheapest layover option averages $208 round-trip on this route - about $237 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Houston George Bush Intcntl Airport.
    - Houston Airport Marriott at George Bush Intercontinental
  • Seattle Tacoma International airport (SEA) offers a variety of transport means to and from the airport. From downtown Seattle, you can take bus lines 165 and 150 to get to the facility. You can also take the tram, which offers rides to and from the airport. You can also take the shuttle or a taxi to the airport. Alternatively, you can also rent a car and drive to the facility.
  • SEA offers quiet nursing rooms where parents can feed or change their babies if they are traveling with a baby. Nursing rooms are inside the kid’s playroom in the main terminal. It features adjustable lighting, rocking chairs, side tables, footstools, and electric outlets.
  • SEA has one main terminal with six concourses, including A, B, C, D, and north and south gates. Concourse A serves seven airlines, B three airlines, while C and D each one airline. The South concourse operates 18 airlines and is the most immense concourse.
  • Travelers with late arrivals at George Bush Intercontinental Airport (IAH) can find an onsite hotel to rest and spend the night. The Houston Airport Marriott lies between Terminal B and C. You will find a complimentary underground train service that provides rides from all airline gates to the hotel within minutes.
  • U.S. citizen travelers do not need a visa when traveling from SEA to IAH. However, they must provide proof of identity. If you are not a U.S. citizen, you must provide a temporary visa when getting on flights from SEA to IAH. The visa or passport has to be valid throughout your travel period.

Prefer to fly direct from Seattle to Houston George Bush Airport?

 
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Houston George Bush Intcntl Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Houston George Bush Intcntl

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

Direct returns

Houston George Bush Intcntl to Seattle/Tacoma Intl

Monday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Tuesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Wednesday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Thursday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Friday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Saturday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

Sunday

Alaska Airlines,United Airlines

Alaska Airlines,United Airlines

See more direct flights

Everything you need to know for your flight from Seattle to George Bush Intcntl

Information on your arrival and departure airports