What is the cheapest airline that flies from Houston to Washington?

Delta, Southwest, and Frontier are the most popular carriers operating from Houston to Washington

How many flights depart from Houston to State of Washington on average per week?

As of June 2026, 93 flights take off from Houston and land in State of Washington each week. The most common flight departure day for this route is Fri, with 24% of weekly flights taking off on this day.

How many flights depart from Houston to State of Washington on average per day?

As of June 2026, 13 flights take off from Houston and land in State of Washington each day. The most common flight departure time for this route is 8:00AM, with 57% of daily flights taking off at noon.

What airlines fly to State of Washington?

Alaska Airlines, United Airlines and Frontier are the top three most popular airlines that fly to State of Washington from Houston according to our data. Alaska Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 7 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Houston to Washington?

Prices for flights from Houston to Washington are updated daily.

How many operators does momondo search for flights from Houston to Washington?

As of June 2026, there are 7 operators available to choose from for flights from Houston to Washington.

How old do you have to be to fly from Houston to Washington?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$150 Cheap Flights from Houston to Washington in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Houston to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:14 pm - 4:51 pm

IAH

PDX

24h 37m

1 stop

5:16 pm - 10:34 am

PDX

IAH

15h 18m

1 stop

$286Frontier

Fri, Jul 10 - Tue, Jul 14

7:55 pm - 1:41 pm

IAH

BLI

19h 46m

1 stop

4:59 pm - 8:52 pm

BLI

IAH

49h 53m

2 stops

$287Multiple Airlines

Wed, Sep 2 - Sun, Sep 13

9:59 pm - 11:39 am

IAH

PDX

15h 40m

1 stop

5:35 pm - 7:03 pm

PDX

IAH

23h 28m

1 stop

$290Frontier

Fri, Oct 9 - Tue, Oct 13

6:02 am - 12:25 pm

IAH

GEG

8h 23m

1 stop

5:00 am - 1:35 pm

GEG

IAH

6h 35m

1 stop

$298Alaska Airlines

Sat, Aug 1 - Sat, Aug 8

6:16 pm - 11:11 pm

IAH

GEG

6h 55m

1 stop

5:52 am - 5:13 pm

GEG

IAH

9h 21m

1 stop

$299Alaska Airlines

Tue, Aug 25 - Wed, Aug 26

7:30 am - 3:19 pm

IAH

GEG

9h 49m

2 stops

6:16 am - 3:14 pm

GEG

IAH

6h 58m

1 stop

$304Delta

Sat, Aug 8 - Mon, Aug 10

2:28 pm - 9:35 pm

IAH

GEG

9h 07m

2 stops

6:16 am - 6:02 pm

GEG

IAH

9h 46m

2 stops

$309Delta

Sat, Aug 8 - Mon, Aug 10

9:33 am - 4:54 pm

HOU

PDX

9h 21m

1 stop

6:00 am - 3:43 pm

PDX

HOU

7h 43m

1 stop

$357American Airlines

Wed, Sep 16 - Wed, Sep 23

7:20 am - 12:51 pm

IAH

PSC

7h 31m

1 stop

5:14 am - 3:09 pm

PSC

IAH

7h 55m

1 stop

$431United Airlines

Tue, Jun 23 - Tue, Jun 30

5:41 am - 2:48 pm

HOU

PSC

11h 07m

2 stops

5:05 am - 5:42 pm

PSC

HOU

10h 37m

2 stops

$484American Airlines

Wed, Sep 2 - Thu, Sep 10

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Southwest flights from Houston to State of Washington

Our best Southwest deals on Houston to State of Washington flight tickets

Southwest

Aug 20

HOU8:05 amHouston Hobby

9h 30m

1 stop

GEG3:35 pmSpokane

Aug 23

GEG7:05 amSpokane

8h 40m

2 stops

HOU5:45 pmHouston Hobby

$344

Southwest

Aug 20

HOU4:00 pmHouston Hobby

8h 00m

2 stops

GEG10:00 pmSpokane

Aug 23

GEG7:05 amSpokane

8h 40m

2 stops

HOU5:45 pmHouston Hobby

$349

Southwest

Aug 18

HOU12:50 pmHouston Hobby

6h 55m

1 stop

PDX5:45 pmPortland

Aug 22

PDX6:00 amPortland

6h 00m

1 stop

HOU2:00 pmHouston Hobby

$363

Alaska Airlines flights from Houston to State of Washington

Our best Alaska Airlines deals on Houston to State of Washington flight tickets

Alaska Airlines

Aug 1

IAH6:02 amHouston George Bush Intcntl

8h 23m

1 stop

GEG12:25 pmSpokane

Aug 8

GEG5:00 amSpokane

6h 35m

1 stop

IAH1:35 pmHouston George Bush Intcntl

$298

Alaska Airlines

Aug 25

IAH6:16 pmHouston George Bush Intcntl

6h 55m

1 stop

GEG11:11 pmSpokane

Aug 26

GEG5:52 amSpokane

9h 21m

1 stop

IAH5:13 pmHouston George Bush Intcntl

$299

Alaska Airlines

Jul 25

IAH6:02 amHouston George Bush Intcntl

8h 24m

1 stop

GEG12:26 pmSpokane

Aug 1

GEG5:00 amSpokane

6h 35m

1 stop

IAH1:35 pmHouston George Bush Intcntl

$324

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonPortland

IAH - PDX

IAHPDX

Houston George Bush Intcntl

Fri 7/10

6:14 pm-4:51 pm

1 stop24h 37m

Portland

Tue 7/14

5:16 pm-10:34 am

1 stop15h 18m

$286

HoustonBellingham

IAH - BLI

IAHBLI

Houston George Bush Intcntl

Wed 9/2

7:55 pm-1:41 pm

1 stop19h 46m

Bellingham

Sun 9/13

4:59 pm-8:52 pm

2 stops49h 53m

$287

HoustonPortland

IAH - PDX

IAHPDX

Houston George Bush Intcntl

Fri 10/9

9:59 pm-11:39 am

1 stop15h 40m

Portland

Tue 10/13

5:35 pm-7:03 pm

1 stop23h 28m

$290

Quickest round-trip

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Sat 8/1

6:02 am-12:25 pm

1 stop8h 23m

Spokane

Sat 8/8

5:00 am-1:35 pm

1 stop6h 35m

$298

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Tue 8/25

6:16 pm-11:11 pm

1 stop6h 55m

Spokane

Wed 8/26

5:52 am-5:13 pm

1 stop9h 21m

$299

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Sat 8/8

7:30 am-3:19 pm

2 stops9h 49m

Spokane

Mon 8/10

6:16 am-3:14 pm

1 stop6h 58m

$304

HoustonSpokane

IAH - GEG

IAHGEG

Houston George Bush Intcntl

Sat 8/8

2:28 pm-9:35 pm

2 stops9h 07m

Spokane

Mon 8/10

6:16 am-6:02 pm

2 stops9h 46m

$309

HoustonPortland

HOU - PDX

HOUPDX

Houston Hobby

Wed 9/16

9:33 am-4:54 pm

1 stop9h 21m

Portland

Wed 9/23

6:00 am-3:43 pm

1 stop7h 43m

$357

HoustonPasco

IAH - PSC

IAHPSC

Houston George Bush Intcntl

Tue 6/23

7:20 am-12:51 pm

1 stop7h 31m

Pasco Tri Cities

Tue 6/30

5:14 am-3:09 pm

1 stop7h 55m

$431

HoustonPasco

HOU - PSC

HOUPSC

Houston Hobby

Wed 9/2

5:41 am-2:48 pm

2 stops11h 07m

Pasco Tri Cities

Thu 9/10

5:05 am-5:42 pm

2 stops10h 37m

$484

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of April is, on average, the cheapest month to fly to State of Washington from Houston, with most prices found around $88. If you aren’t able to travel to State of Washington during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $92.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Houston to State of Washington is on a Tuesday. Travelers who choose to depart for State of Washington on a Tuesday will often find tickets for as low as $447. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Houston to State of Washington for around $557.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the morning when flights can be purchased for as low as $470. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $536 on average. Flights to State of Washington from Houston in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Houston to Washington flight route?

Fly from Houston Hobby to Seattle/Tacoma Intl for the best Houston - Washington flight prices

How far in advance should I book a flight from Houston to Washington?

You are more likely to see cheaper flights to State of Washington from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Houston for as low as $313 on momondo.

What cabin class options are available on Houston to State of Washington flights?

There are 4 cabin classes available to choose from on Houston to State of Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Houston to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to State of Washington

Fastest flight time	4h 17m
Direct flights	Every day
Airports in State of Washington	96 airports

The fastest flight from Houston to State of Washington takes 4h 17m

Direct flights go from Houston to State of Washington every day.

There are 96 airports in State of Washington. From Houston there are direct flights to Portland (PDX), Spokane (GEG).

Search flight deals

Frequently asked questions about flying from Houston to Washington

When did momondo last update prices for flights from Houston to Washington?
Prices for flights from Houston to Washington are updated daily.
How many operators does momondo search for flights from Houston to Washington?
As of June 2026, there are 7 operators available to choose from for flights from Houston to Washington.
How old do you have to be to fly from Houston to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Houston to State of Washington

Compare and see reviews for airlines that fly from Houston to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $112	Free Cancellation	Rating 5.6 2,879 reviews	Search Frontier flights
Delta	PriceFrom $115	Free Cancellation	Rating 7.8 8,416 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $148	Free Cancellation	Rating 7.8 2,827 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $184	Free Cancellation	Rating 7.1 11,700 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $205	Free Cancellation	Rating 7.9 12,538 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $228	Free Cancellation	Rating 7.9 4,239 reviews	Search Southwest flights
United Airlines	PriceFrom $242	Free Cancellation	Rating 7.4 9,860 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Washington?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from Houston.

Can I find flights from Houston to Washington with flexible booking policies on momondo?

All flight searches from Houston to Washington on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Houston to Washington?

Once all potential Houston to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Houston to Washington right now. Can momondo alert me if prices change?

Price alerts on flights to Washington from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.