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Harlingen

$201+ Cheap flights from Washington to Harlingen, TX (HRL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HRL
Jan 18 — Jan 251
Sun 1/18
Sun 1/25
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 December 19, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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 12/317:12 pmSEA - HRL
2 stops14h 01mUnited Airlines
Fri 1/97:00 amHRL - SEA
1 stop7h 49mUnited Airlines
Deal found 12/17$362
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/3111:59 pmSEA - HRL
1 stop9h 14mUnited Airlines
Thu 1/87:00 amHRL - SEA
1 stop7h 49mUnited Airlines
Deal found 12/17$397
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/317:12 pmSEA - HRL
2 stops14h 01mUnited Airlines
Wed 1/75:25 pmHRL - SEA
1 stop7h 34mUnited Airlines
Deal found 12/17$408
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/317:12 pmSEA - HRL
2 stops14h 01mUnited Airlines
Sat 1/109:20 amHRL - SEA
2 stops13h 55mUnited Airlines
Deal found 12/17$413
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/317:12 pmSEA - HRL
2 stops14h 01mUnited Airlines
Tue 1/65:25 pmHRL - SEA
2 stops27h 01mUnited Airlines
Deal found 12/17$476
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:45 amSEA - HRL
1 stop24h 35mDelta
Sat 1/103:39 pmHRL - SEA
2 stops32h 10mDelta
Deal found 12/17$578
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/317:12 pmSEA - HRL
2 stops14h 01mUnited Airlines
Mon 1/55:20 pmHRL - SEA
2 stops20h 21mUnited Airlines
Deal found 12/17$597
This American Airlines deal was found by Cheapflights users on 12/18. 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.
Sat 12/2711:59 pmPDX - HRL
1 stop7h 41mAmerican Airlines
Tue 12/3010:12 amHRL - PDX
2 stops12h 42mAmerican Airlines
Deal found 12/18$754
This Southwest deal was found by Cheapflights users on 12/18. 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.
Sun 12/215:10 amPDX - HRL
2 stops7h 55mSouthwest
Sat 12/274:15 pmHRL - PDX
2 stops10h 25mSouthwest
Deal found 12/18$868
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Mon 12/225:00 amPSC - HRL
2 stops14h 59mUnited Airlines
Wed 12/247:00 amHRL - PSC
2 stops32h 14mUnited Airlines
Deal found 12/18$918
This Southwest deal was found by Cheapflights users on 12/18. 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.
Sat 12/272:25 pmPDX - HRL
2 stops7h 30mSouthwest
Tue 12/303:40 pmHRL - PDX
2 stops10h 45mSouthwest
Deal found 12/18$933
This American Airlines deal was found by Cheapflights users on 12/18. 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 12/1912:49 amPDX - HRL
1 stop6h 51mAmerican Airlines
Sat 12/272:48 pmHRL - PDX
1 stop9h 11mAmerican Airlines
Deal found 12/18$984

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 December 19, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$670
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
Highest demand for flights based on searches. 27% potential increase in price ($171 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 19, 2025.
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

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Tue 1/13

11:55 am-11:21 pm

1 stop9h 26m

Harlingen Valley Intl

Tue 1/27

11:06 am-5:45 pm

1 stop8h 39m

$201

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Tue 2/3

10:00 am-11:21 pm

2 stops11h 21m

Harlingen Valley Intl

Wed 2/4

11:06 am-5:45 pm

1 stop8h 39m

$231

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Fri 1/9

8:35 am-6:14 pm

1 stop7h 39m

Harlingen Valley Intl

Fri 1/16

6:44 pm-11:51 pm

1 stop7h 07m

$236

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Sun 1/11

7:35 am-6:14 pm

1 stop8h 39m

Harlingen Valley Intl

Wed 1/14

6:02 am-11:01 am

1 stop6h 59m

$241

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Tue 2/3

9:00 am-9:59 pm

2 stops10h 59m

Harlingen Valley Intl

Wed 2/4

12:10 pm-9:12 pm

2 stops11h 02m

$247

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Thu 1/15

12:57 pm-9:59 pm

1 stop7h 02m

Harlingen Valley Intl

Thu 1/22

12:10 pm-9:12 pm

2 stops11h 02m

$262

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Thu 1/22

12:57 pm-9:59 pm

1 stop7h 02m

Harlingen Valley Intl

Thu 1/29

9:20 am-9:12 pm

2 stops13h 52m

$262

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Tue 1/13

9:55 am-8:50 pm

2 stops8h 55m

Harlingen Valley Intl

Tue 1/27

7:35 am-5:50 pm

2 stops12h 15m

$269

SeattleHarlingen

SEA - HRL

SEAHRL

Seattle/Tacoma Intl

Wed 1/7

7:00 am-4:06 pm

1 stop7h 06m

Harlingen Valley Intl

Wed 1/14

5:25 pm-10:59 pm

1 stop7h 34m

$327

PortlandHarlingen

PDX - HRL

PDXHRL

Portland

Sat 2/28

11:59 pm-10:05 am

1 stop8h 06m

Harlingen Valley Intl

Fri 3/6

2:43 pm-9:45 pm

1 stop9h 02m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 19 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, January is the cheapest month in which you can book a flight from State of Washington to Harlingen, Texas (average of $204). 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.

What is the cheapest time of day to fly from WA to HRL?

Find hourly flight availability from Washington to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2025.

It’s optimal to fly from State of Washington to Harlingen, Texas in the evening. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight in the morning.

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 $395, American Airlines can have you in Harlingen, Texas from State of Washington in 7h 06m. 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 Seattle/Tacoma Intl - Harlingen Valley Intl, Portland - 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, January is the cheapest month in which you can book a flight from State of Washington to Harlingen, Texas (average of $204). 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.

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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 December 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$225Average$762FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$461FlexibilityNo cancel feeOn-time69%

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