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Harlingen

$119+ Cheap flights from Washington to Harlingen, TX (HRL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HRL
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Washington to Harlingen

Cheapest flights from Washington to Harlingen
Explore the most affordable flight options available from Washington to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This Southwest deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:15 am
PDX
-
HRL
2 stops8h 45m
Southwest
Tue 5/194:40 pm
HRL
-
PDX
2 stops8h 20m
Southwest
Deal found 2/3$197
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
PDX
-
HRL
1 stop7h 04m
United Airlines
Tue 4/287:00 am
HRL
-
PDX
1 stop7h 34m
United Airlines
Deal found 2/1$239
This Southwest deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:40 am
PDX
-
HRL
2 stops7h 20m
Southwest
Tue 4/2810:45 am
HRL
-
PDX
2 stops9h 45m
Southwest
Deal found 2/1$283
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:59 am
SEA
-
HRL
1 stop7h 13m
American Airlines
Wed 3/118:06 pm
HRL
-
SEA
1 stop6h 49m
American Airlines
Deal found 2/3$307
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:29 pm
SEA
-
HRL
2 stops12h 43m
American Airlines
Wed 3/118:06 pm
HRL
-
SEA
1 stop6h 49m
American Airlines
Deal found 2/3$312
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2711:57 pm
SEA
-
HRL
1 stop8h 15m
American Airlines
Wed 3/118:06 pm
HRL
-
SEA
1 stop6h 49m
American Airlines
Deal found 2/3$317
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
PDX
-
HRL
2 stops13h 00m
United Airlines
Tue 5/1912:10 pm
HRL
-
PDX
1 stop9h 28m
United Airlines
Deal found 2/3$319
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:29 pm
SEA
-
HRL
2 stops12h 43m
American Airlines
Wed 3/118:06 pm
HRL
-
SEA
1 stop6h 49m
American Airlines
Deal found 2/3$322
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:30 am
SEA
-
HRL
1 stop7h 34m
United Airlines
Wed 4/1512:05 pm
HRL
-
SEA
1 stop9h 37m
United Airlines
Deal found 2/2$327
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:20 am
SEA
-
HRL
2 stops13h 39m
United Airlines
Wed 4/1512:05 pm
HRL
-
SEA
1 stop9h 37m
United Airlines
Deal found 2/2$332
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:59 pm
SEA
-
HRL
1 stop8h 13m
American Airlines
Wed 4/88:03 pm
HRL
-
SEA
1 stop6h 41m
American Airlines
Deal found 2/3$337
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:29 pm
SEA
-
HRL
2 stops12h 43m
American Airlines
Wed 3/118:06 pm
HRL
-
SEA
1 stop6h 49m
American Airlines
Deal found 2/3$342

Find flight deals from Washington to Harlingen

Keep the following information in mind while searching for Washington to Harlingen flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Southwest)

One-way from

$119
(American Airlines)

Popular in

December

Cheapest in

March

Average price

$400
Provider with most accurate pricing for Seattle/Tacoma Intl-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Harlingen Valley Intl flights.
Search Deals
From Washington to Harlingen Valley Intl
Search Deals
One-way flight from Washington to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Harlingen 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, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Washington to Harlingen that are best for you.

Fly from

Washington

Fly to

Harlingen

Route

Depart

Return

Price

PortlandHarlingen

PDX - HRL

PDXHRL

Portland

Tue 4/21

7:00 am-4:04 pm

1 stop7h 04m

Harlingen Valley Intl

Tue 4/28

7:00 am-12:34 pm

1 stop7h 34m

$239

PortlandHarlingen

PDX - HRL

PDXHRL

Portland

Tue 4/21

6:40 am-4:00 pm

2 stops7h 20m

Harlingen Valley Intl

Tue 4/28

10:45 am-6:30 pm

2 stops9h 45m

$283

PortlandHarlingen

PDX - HRL

PDXHRL

Portland

Tue 5/5

5:00 am-8:00 pm

2 stops13h 00m

Harlingen Valley Intl

Tue 5/19

12:10 pm-7:38 pm

1 stop9h 28m

$319

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Wed 4/8

6:20 am-9:59 pm

2 stops13h 39m

Harlingen Valley Intl

Wed 4/15

5:18 pm-10:50 pm

1 stop7h 32m

$332

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Thu 4/9

6:20 am-9:59 pm

2 stops13h 39m

Harlingen Valley Intl

Tue 4/14

5:18 pm-10:50 pm

1 stop7h 32m

$332

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Tue 4/7

7:37 pm-11:23 am

2 stops13h 46m

Harlingen Valley Intl

Tue 4/14

5:18 pm-10:50 pm

1 stop7h 32m

$332

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Thu 4/9

6:20 am-9:59 pm

2 stops13h 39m

Harlingen Valley Intl

Thu 4/16

12:05 pm-7:42 pm

1 stop9h 37m

$332

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Thu 4/9

6:20 am-9:59 pm

2 stops13h 39m

Harlingen Valley Intl

Wed 4/15

12:05 pm-8:57 pm

2 stops10h 52m

$337

PortlandHarlingen

PDX - HRL

PDXHRL

Portland

Mon 3/2

11:40 pm-10:12 am

1 stop8h 32m

Harlingen Valley Intl

Mon 3/9

2:45 pm-10:02 pm

1 stop9h 17m

$349

PortlandHarlingen

PDX - HRL

PDXHRL

Portland

Mon 3/2

12:00 pm-10:15 pm

2 stops8h 15m

Harlingen Valley Intl

Mon 3/9

5:30 pm-1:25 am

2 stops9h 55m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 22 results
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Best time to book a flight from Washington to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Harlingen

What is the cheapest month to book a flight from State of Washington to Harlingen, Texas?

Currently, March is the cheapest month in which you can book a flight from State of Washington to Harlingen, Texas (average of $191). Flying from State of Washington to Harlingen, Texas in July is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Washington to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Harlingen from Washington?

    For a flight from Washington to Harlingen, you will be flying into Valley Intl. Harlingen Valley Intl (HRL) is just 3.7 mi from the center of the city.

  • How long is the flight from State of Washington to Harlingen, Texas?

    For as low as $239, United Airlines can have you in Harlingen, Texas from State of Washington in 7h 04m. Airlines will cover a distance of 1917 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from State of Washington to Harlingen, Texas?

    Most travelers choose Portland - Harlingen Valley Intl, Seattle/Tacoma Intl - Harlingen Valley Intl or Pasco Tri Cities - Harlingen Valley Intl when deciding on the best route from State of Washington to Harlingen, Texas.

  • Can I find deals for flights from Washington to Harlingen that include hotel bookings?

    Yes. In addition to deals on Washington to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Harlingen.

  • Can I find deals for business class flights from Washington to Harlingen?

    Yes. Cheapflights offers flight deals from Washington to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Harlingen, Texas?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to Harlingen, Texas (average of $191). Flying from State of Washington to Harlingen, Texas in July is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Washington to Harlingen

Discover the top 2 airlines that operate flights from Washington to Harlingen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$225Average$665FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$504FlexibilityNo cancel feeOn-time69%

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