Browse by airline

A fast, easy-to-use flight route finder

Type in your origin and destination city and we will give you the best flight route options based on flight time and connection time along with airline and airports delays.

Flights from Houston to Seattle – Direct & connecting routes

Non-stop airlines Connecting flights Show map Price search

IAH to SEA flights and routes map IAH to SEA – All flight route options from George Bush Intcntl Houston, Texas, USA to Seattle Tacoma International, Washington, USA. These routes are operated by 8 airlines. Fly non-stop with Alaska Airlines or United Airlines, or choose from 28 different stopover flights. The shortest flight time is 4 hours and 42 minutes. See the full flight schedule and time table, including departure times, airlines and stopover details to find the best option for you.

From
To
USA IAH George Bush Intcntl Houston Houston, TX, USA
USA SEA Seattle Tacoma , WA, USA
IAH
George Bush Intcntl Houston
USAHouston, TX, USA
Seattle Tacoma
USASeattle, WA, USA
SEA
2 direct routes found »
SHOW FLIGHTS
44 routes with 1 stop found »
SHOW FLIGHTS

Non-stop route options:

Duration

Alaska Airlines
Non-stop with Alaska Airlines. 3 flights per day.

SHOW SCHEDULE
4h 42m

Alaska Airlines
Non-stop with Alaska Airlines.
4h 42m
3 flights per day.
SHOW SCHEDULE
United Airlines
Non-stop with United Airlines. 6-9 flights per day.

SHOW SCHEDULE
4h 47m

United Airlines
Non-stop with United Airlines.
4h 47m
6-9 flights per day.
SHOW SCHEDULE
CHECK PRICE FOR NON-STOP FLIGHTS
Ad

1 stop route options with the same airline:

Duration

Via Denver DEN
1 stop with Frontier Airlines. 0-1 flights per day.
Begins in 21/8

SHOW SCHEDULE
6h 25m

Begins in 21/8
Via Denver DEN
1 stop with Frontier Airlines.
6h 25m
0-1 flights per day.
Begins in 21/8
SHOW SCHEDULE
Via Portland PDX
1 stop with Alaska Airlines.

SHOW SCHEDULE
6h 30m

Via Portland PDX
1 stop with Alaska Airlines.
6h 30m
SHOW SCHEDULE
Via Dallas DFW
1 stop with American Airlines. 10 flights per day.

SHOW SCHEDULE
6h 54m

Via Dallas DFW
1 stop with American Airlines.
6h 54m
10 flights per day.
SHOW SCHEDULE
Via Salt Lake City SLC
1 stop with Delta Air Lines. 2-3 flights per day.

SHOW SCHEDULE
7h 07m

Via Salt Lake City SLC
1 stop with Delta Air Lines.
7h 07m
2-3 flights per day.
SHOW SCHEDULE
Via Denver DEN
1 stop with United Airlines. 7-8 flights per day.

SHOW SCHEDULE
7h 39m

Via Denver DEN
1 stop with United Airlines.
7h 39m
7-8 flights per day.
SHOW SCHEDULE
Via Los Angeles LAX
1 stop with American Airlines. 0-1 flights per day.
Begins in 2/11

SHOW SCHEDULE
7h 49m

Begins in 2/11
Via Los Angeles LAX
1 stop with American Airlines.
7h 49m
0-1 flights per day.
Begins in 2/11
SHOW SCHEDULE
Via Phoenix PHX
1 stop with American Airlines. 2 flights per day.

SHOW SCHEDULE
7h 54m

Via Phoenix PHX
1 stop with American Airlines.
7h 54m
2 flights per day.
SHOW SCHEDULE
Via Minneapolis MSP
1 stop with Delta Air Lines. 2-4 flights per day.

SHOW SCHEDULE
7h 59m

Via Minneapolis MSP
1 stop with Delta Air Lines.
7h 59m
2-4 flights per day.
SHOW SCHEDULE
Via San Francisco SFO
1 stop with United Airlines. 5-6 flights per day.

SHOW SCHEDULE
8h 09m

Via San Francisco SFO
1 stop with United Airlines.
8h 09m
5-6 flights per day.
SHOW SCHEDULE
Via Los Angeles LAX
1 stop with United Airlines. 5 flights per day.

SHOW SCHEDULE
8h 10m

Via Los Angeles LAX
1 stop with United Airlines.
8h 10m
5 flights per day.
SHOW SCHEDULE
Via Los Angeles LAX
1 stop with Delta Air Lines. 1-2 flights per day.

SHOW SCHEDULE
8h 23m

Via Los Angeles LAX
1 stop with Delta Air Lines.
8h 23m
1-2 flights per day.
SHOW SCHEDULE
Via Las Vegas LAS
1 stop with Spirit Airlines. 0-1 flights per day.
Only mondays

SHOW SCHEDULE
8h 31m

Only mondays
Via Las Vegas LAS
1 stop with Spirit Airlines.
8h 31m
0-1 flights per day.
Only mondays
SHOW SCHEDULE
Via Phoenix PHX
1 stop with United Airlines.
Begins in 1/9

SHOW SCHEDULE
8h 34m

Begins in 1/9
Via Phoenix PHX
1 stop with United Airlines.
8h 34m
Begins in 1/9
SHOW SCHEDULE
Via Santa Ana SNA
1 stop with United Airlines.
Begins in 25/9

SHOW SCHEDULE
10h 30m

Begins in 25/9
Via Santa Ana SNA
1 stop with United Airlines.
10h 30m
Begins in 25/9
SHOW SCHEDULE
Via Saint Louis STL
1 stop with United Airlines.
Begins in 1/8

SHOW SCHEDULE
12h 14m

Begins in 1/8
Via Saint Louis STL
1 stop with United Airlines.
12h 14m
Begins in 1/8
SHOW SCHEDULE
Via Las Vegas LAS
1 stop with United Airlines. 0-2 flights per day.

SHOW SCHEDULE
13h 21m

Via Las Vegas LAS
1 stop with United Airlines.
13h 21m
0-2 flights per day.
SHOW SCHEDULE
SELECT DATE & CHECK PRICE
Ad

1 stop route options with codeshare or different airlines:

Duration

Via Albuquerque ABQ With United Airlines & Alaska Airlines 0-1 flights per day.
Begins in 4/10

SHOW SCHEDULE
6h 40m

Begins in 4/10
Via Albuquerque ABQ
6h 40m
With United Airlines & Alaska Airlines 0-1 flights per day.
Begins in 4/10
SHOW SCHEDULE
Via Oklahoma City OKC With United Airlines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
6h 43m

Via Oklahoma City OKC
6h 43m
With United Airlines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Omaha OMA With United Airlines & American Airlines 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
6h 59m

Via Omaha OMA
6h 59m
With United Airlines & American Airlines 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via Salt Lake City SLC With Delta Air Lines & Alaska Airlines 1-2 flights per day.

SHOW SCHEDULE
6h 59m

Via Salt Lake City SLC
6h 59m
With Delta Air Lines & Alaska Airlines 1-2 flights per day.
SHOW SCHEDULE
Via Denver DEN With United Airlines & Alaska Airlines 5-6 flights per day.

SHOW SCHEDULE
7h 14m

Via Denver DEN
7h 14m
With United Airlines & Alaska Airlines 5-6 flights per day.
SHOW SCHEDULE
Via Kalispell FCA With United Airlines & Alaska Airlines 0-1 flights per day.
Only saturdays

SHOW SCHEDULE
7h 17m

Only saturdays
Via Kalispell FCA
7h 17m
With United Airlines & Alaska Airlines 0-1 flights per day.
Only saturdays
SHOW SCHEDULE
Via San Antonio SAT With United Airlines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
7h 18m

Via San Antonio SAT
7h 18m
With United Airlines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Kansas City MCI With United Airlines & American Airlines 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
7h 25m

Via Kansas City MCI
7h 25m
With United Airlines & American Airlines 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via Santa Ana SNA With United Airlines & American Airlines 0-2 flights per day.
CODESHARE

SHOW SCHEDULE
7h 28m

Via Santa Ana SNA
7h 28m
With United Airlines & American Airlines 0-2 flights per day.
CODESHARE
SHOW SCHEDULE
Via Las Vegas LAS With United Airlines & Alaska Airlines 3-4 flights per day.

SHOW SCHEDULE
7h 34m

Via Las Vegas LAS
7h 34m
With United Airlines & Alaska Airlines 3-4 flights per day.
SHOW SCHEDULE
Via Austin AUS With United Airlines & American Airlines 4 flights per day.
CODESHARE

SHOW SCHEDULE
7h 45m

Via Austin AUS
7h 45m
With United Airlines & American Airlines 4 flights per day.
CODESHARE
SHOW SCHEDULE
Via El Paso ELP With United Airlines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
7h 48m

Via El Paso ELP
7h 48m
With United Airlines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via New Orleans MSY With United Airlines & Alaska Airlines 0-2 flights per day.

SHOW SCHEDULE
7h 50m

Via New Orleans MSY
7h 50m
With United Airlines & Alaska Airlines 0-2 flights per day.
SHOW SCHEDULE
Via Dallas DFW With American Airlines & Alaska Airlines 6-8 flights per day.

SHOW SCHEDULE
7h 54m

Via Dallas DFW
7h 54m
With American Airlines & Alaska Airlines 6-8 flights per day.
SHOW SCHEDULE
Via Portland PDX With United Airlines & Alaska Airlines 3 flights per day.

SHOW SCHEDULE
7h 54m

Via Portland PDX
7h 54m
With United Airlines & Alaska Airlines 3 flights per day.
SHOW SCHEDULE
Via Tucson TUS With United Airlines & Alaska Airlines

SHOW SCHEDULE
8h 00m

Via Tucson TUS
8h 00m
With United Airlines & Alaska Airlines
SHOW SCHEDULE
Via Wichita ICT With United Airlines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
8h 07m

Via Wichita ICT
8h 07m
With United Airlines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Bozeman BZN With United Airlines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
8h 29m

Via Bozeman BZN
8h 29m
With United Airlines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via Los Angeles LAX With American Airlines & Alaska Airlines 0-1 flights per day.
Begins in 3/9

SHOW SCHEDULE
8h 30m

Begins in 3/9
Via Los Angeles LAX
8h 30m
With American Airlines & Alaska Airlines 0-1 flights per day.
Begins in 3/9
SHOW SCHEDULE
Via Phoenix PHX With American Airlines & Alaska Airlines 0-1 flights per day.

SHOW SCHEDULE
8h 32m

Via Phoenix PHX
8h 32m
With American Airlines & Alaska Airlines 0-1 flights per day.
SHOW SCHEDULE
Via San Francisco SFO With United Airlines & American Airlines 3-4 flights per day.
CODESHARE

SHOW SCHEDULE
8h 39m

Via San Francisco SFO
8h 39m
With United Airlines & American Airlines 3-4 flights per day.
CODESHARE
SHOW SCHEDULE
Via Palm Springs PSP With United Airlines & Alaska Airlines 0-1 flights per day.
Begins in 21/11

SHOW SCHEDULE
8h 55m

Begins in 21/11
Via Palm Springs PSP
8h 55m
With United Airlines & Alaska Airlines 0-1 flights per day.
Begins in 21/11
SHOW SCHEDULE
Via Sacramento SMF With United Airlines & American Airlines 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
8h 57m

Via Sacramento SMF
8h 57m
With United Airlines & American Airlines 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via San Jose SJC With United Airlines & American Airlines
Only saturdays
CODESHARE

SHOW SCHEDULE
9h 08m

Only saturdays
Via San Jose SJC
9h 08m
With United Airlines & American Airlines
Only saturdays
CODESHARE
SHOW SCHEDULE
Via Minneapolis MSP With Delta Air Lines & Alaska Airlines 1-2 flights per day.

SHOW SCHEDULE
9h 12m

Via Minneapolis MSP
9h 12m
With Delta Air Lines & Alaska Airlines 1-2 flights per day.
SHOW SCHEDULE
Via Saint Louis STL With United Airlines & American Airlines 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
9h 15m

Via Saint Louis STL
9h 15m
With United Airlines & American Airlines 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via San Diego SAN With United Airlines & American Airlines 0-1 flights per day.
CODESHARE

SHOW SCHEDULE
9h 20m

Via San Diego SAN
9h 20m
With United Airlines & American Airlines 0-1 flights per day.
CODESHARE
SHOW SCHEDULE
Via Medford MFR With United Airlines & Alaska Airlines
Begins in 25/9

SHOW SCHEDULE
11h 50m

Begins in 25/9
Via Medford MFR
11h 50m
With United Airlines & Alaska Airlines
Begins in 25/9
SHOW SCHEDULE
SELECT DATE & CHECK PRICE
Find the best prices on hotels and car rental near Seattle Tacoma

We got great deals on hotels and car rentals near the airport.

Seattle Airport HOTEL PRICES
Seattle Airport CAR-RENTAL
Ad

Houston to Seattle flights

There are over 30 airlines and as many as 1132 flights every week to this destination. You can fly non-stop to Seattle (SEA) from Houston (IAH) with Alaska Airlines or United Airlines but if a stopover option suits you better you can choose to fly via Denver, Albuquerque or any other of the 28 alternatives with connectiing airports.

Tip! You can also fly to Seattle from William P. Hobby Airport (HOU).

Houston to Seattle with Alaska Airlines

You can fly non-stop every weekday with flights departing between 6:00 am and 7:00 pm. You also have the option to do a transit flight via Portland. Alaska Airlines is a member of the air alliance OneWorld.

With Frontier Airlines

If you fly from Houston with Frontier Airlines you will do a stopover in Denver, DEN before reaching Seattle. This flight trip will take 6 hours and 25 minutes and you can fly every day of the week except Mondays and Tuesday with departures at 07:00 or 20:08.

Distance & flight times: Houston Airport to Seattle Airport

The shortest flight time between IAH and SEA is 4 hours and 42 minutes.

ViaTotal flight timeLayover timeDistance
Direct4h 42m-1883 miles (3030 km)
DEN Denver6h 25m40m1894 miles (3047 km)
ABQ Albuquerque6h 40m1h 6m1932 miles (3109 km)
OKC Oklahoma City6h 43m1h 7m1922 miles (3092 km)
DFW Dallas6h 54m2h 53m1892 miles (3044 km)
SLC Salt Lake City6h 59m1h 27m1892 miles (3044 km)
OMA Omaha6h 59m1h 0m2157 miles (3471 km)
FCA Kalispell7h 17m1h 31m2001 miles (3220 km)
SAT San Antonio7h 18m2h 0m1974 miles (3176 km)
MCI Kansas City7h 25m1h 24m2141 miles (3445 km)
SNA Santa Ana7h 28m1h 32m2335 miles (3757 km)
AUS Austin7h 45m1h 57m1919 miles (3088 km)
ELP El Paso7h 48m2h 19m2046 miles (3292 km)
LAX Los Angeles7h 49m44m2344 miles (3771 km)
MSY New Orleans7h 50m44m2400 miles (3862 km)
PDX Portland7h 54m1h 46m1962 miles (3157 km)
PHX Phoenix7h 54m1h 54m2126 miles (3421 km)
TUS Tucson8h 0m1h 55m2162 miles (3479 km)
ICT Wichita8h 7m2h 19m1980 miles (3186 km)
BZN Bozeman8h 29m2h 53m1937 miles (3117 km)
LAS Las Vegas8h 31m2h 28m2097 miles (3374 km)
SFO San Francisco8h 39m1h 54m2324 miles (3739 km)
PSP Palm Springs8h 55m2h 24m2268 miles (3649 km)
SMF Sacramento8h 57m2h 50m2225 miles (3580 km)
SJC San Jose9h 8m2h 47m2315 miles (3725 km)
MSP Minneapolis9h 12m47m2443 miles (3931 km)
STL Saint Louis9h 15m2h 33m2385 miles (3837 km)
SAN San Diego9h 20m2h 54m2364 miles (3804 km)
MFR Medford11h 50m2h 34m2109 miles (3393 km)
The flight times and layover times in the table above are approximate and may vary depending on flight number, aircraft, airline, weather, and time of day.IAH-SEA flight routesHouston to Seattle flight routes illustrated on a map.
Ad
Houston - Seattle route map and flight paths
CHECK PRICES FOR IAH - SEA
Quick copy and share this page
URL copied to clipboard!
Ad
Show all destinations from IAH Show all destinations from SEA

You can fly non-stop from Houston (IAH) to Seattle (SEA) with Alaska Airlines or United Airlines. The flight takes approximately 4 hours and 42 minutes. If you travel with a connecting flight instead, for example via Denver, the total flight time will be 6 hours and 25 minutes.

If you're interested in direct flights, Alaska Airlines or United Airlines is available. For flights with stopovers, Frontier Airlines, United Airlines, Alaska Airlines, American Airlines, Delta Air Lines or Spirit Airlines is also an option.

The flight time between George Bush Intcntl Houston (IAH) and Seattle Tacoma International (SEA) is approximately 4 hours and 42 minutes. The distance between the two airports is 2344 miles (or 3771 kilometers).

Yes, you can fly non-stop to SEA from IAH with Alaska Airlines or United Airlines.

A codeshare agreement means that cooperating airlines are able to sell seats on each other’s flights. This means that you are able to travel to more destinations than your airline of choice normally offers. Codeshare flights are also beneficial because of the seamless transits you can get with connecting flights from the same airline. The downside of choosing a codeshare flight can be that you in some cases can’t upgrade codeshare flights or use elite benefits.

A connecting or transit flight means that you reach your final destination through two or more flights – in other words a non-direct flight. You will change to a new aircraft after your first flight, this may include moving to another terminal at the airport aswell. The time required to transfer passengers and luggage between flights is called Minimum Connecting Time (MCT) and are always taken into account here on Flightroutes.com.

If you bought your whole flight on a single ticket, the airline will book you on the next available connecting flight.

With connecting flights, checked in luggage is most commonly forwarded to your final destination when buying a single ticket for both flights.

If you miss your connecting flight due to circumstances outside your control such as your first flight being delayed, you should turn to your airline who will provide you with a seat on the next available flight. This is usually done free of charge, and only applies if you purchased your trip as one ticket. If the next connecting flight is the following day, the airline usually provides accommodation and meals.
Ad
Search price