What is the cheapest airline that flies from Harlingen Valley Intl to Washington?

American Airlines and United Airlines are the most popular carriers operating from Harlingen Valley Intl to Washington

What airlines fly to State of Washington?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to State of Washington from Harlingen, Texas according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 4 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 Harlingen Valley Intl Airport to Washington?

Prices for flights from Harlingen Valley Intl Airport to Washington refresh daily.

How many operators does momondo search for flights from Harlingen Valley Intl Airport to Washington?

There are 3 operators available for flights from Harlingen Valley Intl Airport to Washington as of March 2026.

How old do you have to be to fly from Harlingen Valley Intl Airport 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 Harlingen Valley Intl Airport to Washington.

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

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$99 Cheap Flights from Harlingen to Washington in 2026

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Find the cheapest flights from Harlingen, Texas to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:53 pm - 12:44 am

HRL

SEA

6h 51m

1 stop

2:10 pm - 10:51 pm

SEA

HRL

6h 41m

1 stop

$220American Airlines

Thu, Apr 30 - Wed, May 6

5:18 pm - 11:12 pm

HRL

SEA

7h 54m

1 stop

8:45 am - 9:59 pm

SEA

HRL

11h 14m

2 stops

$236United Airlines

Thu, Apr 23 - Tue, Apr 28

7:53 pm - 12:44 am

HRL

SEA

6h 51m

1 stop

12:59 am - 10:17 am

SEA

HRL

7h 18m

1 stop

$249American Airlines

Thu, Apr 23 - Mon, Apr 27

7:53 pm - 12:44 am

HRL

SEA

6h 51m

1 stop

11:55 pm - 10:17 am

SEA

HRL

8h 22m

1 stop

$253American Airlines

Fri, Apr 24 - Wed, Apr 29

12:10 pm - 11:29 pm

HRL

SEA

13h 19m

2 stops

11:59 pm - 11:23 am

SEA

HRL

9h 24m

1 stop

$267United Airlines

Sat, May 2 - Wed, May 6

12:10 pm - 7:48 pm

HRL

SEA

9h 38m

2 stops

5:05 am - 8:00 pm

SEA

HRL

12h 55m

2 stops

$278United Airlines

Sat, May 2 - Wed, May 6

8:06 pm - 12:55 am

HRL

SEA

6h 49m

1 stop

11:55 pm - 10:17 am

SEA

HRL

8h 22m

1 stop

$286American Airlines

Mon, Apr 6 - Thu, Apr 9

8:03 pm - 12:44 am

HRL

SEA

6h 41m

1 stop

11:55 pm - 10:17 am

SEA

HRL

8h 22m

1 stop

$287American Airlines

Wed, Apr 15 - Sun, Apr 19

6:00 pm - 12:55 am

HRL

SEA

8h 55m

2 stops

8:25 am - 8:55 pm

SEA

HRL

10h 30m

2 stops

$292Southwest

Thu, Apr 30 - Wed, May 6

11:55 am - 7:15 pm

HRL

PDX

9h 20m

2 stops

5:25 am - 4:05 pm

PDX

HRL

8h 40m

2 stops

$379Southwest

Fri, Aug 14 - Mon, Aug 17

American Airlines flights from Harlingen, Texas to State of Washington

Our best American Airlines deals on Harlingen, Texas to State of Washington flight tickets

American Airlines

Apr 30

HRL7:53 pmHarlingen Valley Intl

6h 51m

1 stop

SEA12:44 amSeattle/Tacoma Intl

May 6

SEA2:10 pmSeattle/Tacoma Intl

6h 41m

1 stop

HRL10:51 pmHarlingen Valley Intl

$220

American Airlines

Apr 23

HRL7:53 pmHarlingen Valley Intl

6h 51m

1 stop

SEA12:44 amSeattle/Tacoma Intl

Apr 27

SEA12:59 amSeattle/Tacoma Intl

7h 18m

1 stop

HRL10:17 amHarlingen Valley Intl

$249

American Airlines

Apr 24

HRL7:53 pmHarlingen Valley Intl

6h 51m

1 stop

SEA12:44 amSeattle/Tacoma Intl

Apr 29

SEA11:55 pmSeattle/Tacoma Intl

8h 22m

1 stop

HRL10:17 amHarlingen Valley Intl

$253

United Airlines flights from Harlingen, Texas to State of Washington

Our best United Airlines deals on Harlingen, Texas to State of Washington flight tickets

United Airlines

Apr 23

HRL5:18 pmHarlingen Valley Intl

7h 54m

1 stop

SEA11:12 pmSeattle/Tacoma Intl

Apr 28

SEA8:45 amSeattle/Tacoma Intl

11h 14m

2 stops

HRL9:59 pmHarlingen Valley Intl

$236

United Airlines

May 2

HRL12:10 pmHarlingen Valley Intl

13h 19m

2 stops

SEA11:29 pmSeattle/Tacoma Intl

May 6

SEA11:59 pmSeattle/Tacoma Intl

9h 24m

1 stop

HRL11:23 amHarlingen Valley Intl

$267

United Airlines

May 2

HRL12:10 pmHarlingen Valley Intl

9h 38m

2 stops

SEA7:48 pmSeattle/Tacoma Intl

May 6

SEA5:05 amSeattle/Tacoma Intl

12h 55m

2 stops

HRL8:00 pmHarlingen Valley Intl

$278

momondo Fare Finder

Use the filters below to find and compare flights from Harlingen, Texas to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Thu 4/30

7:53 pm-12:44 am

1 stop6h 51m

Seattle/Tacoma Intl

Wed 5/6

2:10 pm-10:51 pm

1 stop6h 41m

$220

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Thu 4/23

5:18 pm-11:12 pm

1 stop7h 54m

Seattle/Tacoma Intl

Tue 4/28

8:45 am-9:59 pm

2 stops11h 14m

$236

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Thu 4/23

7:53 pm-12:44 am

1 stop6h 51m

Seattle/Tacoma Intl

Mon 4/27

12:59 am-10:17 am

1 stop7h 18m

$249

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Fri 4/24

7:53 pm-12:44 am

1 stop6h 51m

Seattle/Tacoma Intl

Wed 4/29

11:55 pm-10:17 am

1 stop8h 22m

$253

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 5/2

12:10 pm-11:29 pm

2 stops13h 19m

Seattle/Tacoma Intl

Wed 5/6

11:59 pm-11:23 am

1 stop9h 24m

$267

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Sat 5/2

12:10 pm-7:48 pm

2 stops9h 38m

Seattle/Tacoma Intl

Wed 5/6

5:05 am-8:00 pm

2 stops12h 55m

$278

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Mon 4/6

8:06 pm-12:55 am

1 stop6h 49m

Seattle/Tacoma Intl

Thu 4/9

11:55 pm-10:17 am

1 stop8h 22m

$286

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 4/15

8:03 pm-12:44 am

1 stop6h 41m

Seattle/Tacoma Intl

Sun 4/19

11:55 pm-10:17 am

1 stop8h 22m

$287

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Thu 4/30

6:00 pm-12:55 am

2 stops8h 55m

Seattle/Tacoma Intl

Wed 5/6

8:25 am-8:55 pm

2 stops10h 30m

$292

HarlingenPortland

HRL - PDX

HRLPDX

Harlingen Valley Intl

Fri 8/14

11:55 am-7:15 pm

2 stops9h 20m

Portland

Mon 8/17

5:25 am-4:05 pm

2 stops8h 40m

$379

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 Harlingen, Texas 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

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

The month of February is, on average, the cheapest month to fly to State of Washington from Harlingen, Texas, with most prices found around $263. If you aren’t able to travel to State of Washington during the month of February, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $278.

Can stopping save me money on Harlingen, Texas to State of Washington flights?

You could potentially save up to 66% on your flight if you consider stops on a Harlingen, Texas to State of Washington flight.

Cheap Harlingen, Texas to State of Washington flight deals and tips

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

Fastest flight time	6h 50m
Direct flights	None

The fastest flight from Harlingen, Texas to State of Washington takes 6h 50m

There are no direct flights from Harlingen, Texas to State of Washington. There are no popular flight routes from Harlingen, Texas to State of Washington.

Search flight deals

When did momondo last update prices for flights from Harlingen Valley Intl Airport to Washington?
Prices for flights from Harlingen Valley Intl Airport to Washington refresh daily.
How many operators does momondo search for flights from Harlingen Valley Intl Airport to Washington?
There are 3 operators available for flights from Harlingen Valley Intl Airport to Washington as of March 2026.
How old do you have to be to fly from Harlingen Valley Intl Airport 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 Harlingen Valley Intl Airport to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Harlingen, Texas to State of Washington

Compare and see reviews for airlines that fly from Harlingen, Texas to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $225	Free Cancellation	Rating 7.1 11,369 reviews	Search American Airlines flights
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.4 9,375 reviews	Search United Airlines flights
Southwest	PriceFrom $328	Free Cancellation	Rating 8.0 4,306 reviews	Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harlingen to Washington for you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Harlingen to Washington.

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

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from Harlingen and alert you when they change.