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Cheap flights from Harlingen, Texas to Washington from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to Washington departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Harlingen, Texas to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:44 pm - 11:51 pm
HRL
-
SEA
7h 07m1 stop
American Airlines Logo
11:55 am - 11:21 pm
SEA
-
HRL
9h 26m1 stop
$197American Airlines
Fri, Feb 6 - Tue, Feb 10
American Airlines Logo
6:44 pm - 11:51 pm
HRL
-
SEA
7h 07m1 stop
American Airlines Logo
8:35 am - 6:14 pm
SEA
-
HRL
7h 39m1 stop
$225American Airlines
Thu, Feb 5 - Tue, Feb 10
American Airlines Logo
11:06 am - 5:45 pm
HRL
-
SEA
8h 39m1 stop
American Airlines Logo
10:00 am - 11:21 pm
SEA
-
HRL
11h 21m2 stops
$229American Airlines
Fri, Feb 6 - Tue, Feb 10
United Airlines Logo
5:25 pm - 10:59 pm
HRL
-
SEA
7h 34m1 stop
United Airlines Logo
8:40 am - 9:59 pm
SEA
-
HRL
11h 19m2 stops
$252United Airlines
Thu, Feb 5 - Tue, Feb 10
American Airlines Logo
2:43 pm - 9:45 pm
HRL
-
PDX
9h 02m1 stop
American Airlines Logo
1:51 pm - 10:52 pm
PDX
-
HRL
7h 01m1 stop
$298American Airlines
Thu, Feb 19 - Fri, Feb 27
Southwest Logo
11:15 am - 6:40 pm
HRL
-
SEA
9h 25m2 stops
Southwest Logo
5:15 am - 5:05 pm
SEA
-
HRL
9h 50m2 stops
$319Southwest
Thu, Feb 5 - Tue, Feb 10
United Airlines Logo
5:25 pm - 10:59 pm
HRL
-
SEA
7h 34m1 stop
United Airlines Logo
12:40 pm - 9:59 pm
SEA
-
HRL
7h 19m1 stop
$327United Airlines
Wed, Jan 14 - Sat, Jan 17
United Airlines Logo
9:20 am - 9:12 pm
HRL
-
SEA
13h 52m2 stops
United Airlines Logo
12:40 pm - 9:59 pm
SEA
-
HRL
7h 19m1 stop
$332United Airlines
Wed, Jan 14 - Sat, Jan 17
American Airlines Logo
6:02 am - 2:48 pm
HRL
-
PDX
10h 46m2 stops
American Airlines Logo
2:18 pm - 11:21 pm
PDX
-
HRL
7h 03m1 stop
$338American Airlines
Wed, Jan 7 - Sun, Jan 11
Southwest Logo
6:35 am - 1:45 pm
HRL
-
PDX
9h 10m2 stops
Southwest Logo
10:15 am - 10:10 pm
PDX
-
HRL
9h 55m2 stops
$369Southwest
Thu, Feb 19 - Fri, Feb 27

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
Feb 6
HRL6:44 pmHarlingen Valley Intl
7h 07m
1 stop
SEA11:51 pmSeattle/Tacoma Intl
Feb 10
SEA11:55 amSeattle/Tacoma Intl
9h 26m
1 stop
HRL11:21 pmHarlingen Valley Intl
$197
Find similar
American Airlines
Feb 5
HRL6:44 pmHarlingen Valley Intl
7h 07m
1 stop
SEA11:51 pmSeattle/Tacoma Intl
Feb 10
SEA8:35 amSeattle/Tacoma Intl
7h 39m
1 stop
HRL6:14 pmHarlingen Valley Intl
$225
Find similar
American Airlines
Feb 6
HRL11:06 amHarlingen Valley Intl
8h 39m
1 stop
SEA5:45 pmSeattle/Tacoma Intl
Feb 10
SEA10:00 amSeattle/Tacoma Intl
11h 21m
2 stops
HRL11:21 pmHarlingen Valley Intl
$229
Find similar

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
Feb 5
HRL5:25 pmHarlingen Valley Intl
7h 34m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Feb 10
SEA8:40 amSeattle/Tacoma Intl
11h 19m
2 stops
HRL9:59 pmHarlingen Valley Intl
$252
Find similar
United Airlines
Jan 14
HRL5:25 pmHarlingen Valley Intl
7h 34m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Jan 17
SEA12:40 pmSeattle/Tacoma Intl
7h 19m
1 stop
HRL9:59 pmHarlingen Valley Intl
$327
Find similar
United Airlines
Jan 14
HRL9:20 amHarlingen Valley Intl
13h 52m
2 stops
SEA9:12 pmSeattle/Tacoma Intl
Jan 17
SEA12:40 pmSeattle/Tacoma Intl
7h 19m
1 stop
HRL9:59 pmHarlingen Valley Intl
$332
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 23, 2025.
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

Fri 2/6

6:44 pm-11:51 pm

1 stop7h 07m

Seattle/Tacoma Intl

Tue 2/10

11:55 am-11:21 pm

1 stop9h 26m

$197

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Thu 2/5

6:44 pm-11:51 pm

1 stop7h 07m

Seattle/Tacoma Intl

Tue 2/10

8:35 am-6:14 pm

1 stop7h 39m

$225

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Fri 2/6

11:06 am-5:45 pm

1 stop8h 39m

Seattle/Tacoma Intl

Tue 2/10

10:00 am-11:21 pm

2 stops11h 21m

$229

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Thu 2/5

5:25 pm-10:59 pm

1 stop7h 34m

Seattle/Tacoma Intl

Tue 2/10

8:40 am-9:59 pm

2 stops11h 19m

$252

HarlingenPortland

HRL - PDX

HRLPDX

Harlingen Valley Intl

Thu 2/19

2:43 pm-9:45 pm

1 stop9h 02m

Portland

Fri 2/27

1:51 pm-10:52 pm

1 stop7h 01m

$298

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Thu 2/5

11:15 am-6:40 pm

2 stops9h 25m

Seattle/Tacoma Intl

Tue 2/10

5:15 am-5:05 pm

2 stops9h 50m

$319

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 1/14

5:25 pm-10:59 pm

1 stop7h 34m

Seattle/Tacoma Intl

Sat 1/17

12:40 pm-9:59 pm

1 stop7h 19m

$327

HarlingenSeattle

HRL - SEA

HRLSEA

Harlingen Valley Intl

Wed 1/14

9:20 am-9:12 pm

2 stops13h 52m

Seattle/Tacoma Intl

Sat 1/17

12:40 pm-9:59 pm

1 stop7h 19m

$332

HarlingenPortland

HRL - PDX

HRLPDX

Harlingen Valley Intl

Wed 1/7

6:02 am-2:48 pm

2 stops10h 46m

Portland

Sun 1/11

2:18 pm-11:21 pm

1 stop7h 03m

$338

HarlingenPortland

HRL - PDX

HRLPDX

Harlingen Valley Intl

Thu 2/19

6:35 am-1:45 pm

2 stops9h 10m

Portland

Fri 2/27

10:15 am-10:10 pm

2 stops9h 55m

$369

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Washington from

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

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

The cheapest day to depart from Harlingen, Texas to State of Washington is on a Thursday. Travelers who choose to depart for State of Washington on a Thursday will often find tickets for as low as $355. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Harlingen, Texas to State of Washington for around $552.

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 $452. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $630 on average. Flights to State of Washington from Harlingen, Texas at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 9% 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

7h 28m

Direct flights

None
The fastest flight from Harlingen, Texas to State of Washington takes 7h 28m
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?

  • 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
DeltaPriceFrom $149Free CancellationRating
7.9
8,014 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights
SouthwestPriceFrom $328Free CancellationRating
8.0
4,253 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.

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