SEA - HRL

$191 Find Cheap Flights from Seattle to Harlingen - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$325
Typical prices: $383-$585
Southwest
Sun 11/11Mon 11/19
SEA - HRL • 2 stops
Cheapest one-way
$191
Typical prices: $197-$304
Southwest
Wed 10/24
SEA - HRL • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Seattle and Harlingen. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 38% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston George Bush Intcntl (IAH)
Cheapest • Avg $480 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 7h 14m (one-way)
Insights
Insights
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Booking Insights
Flight Deals

Cheap Flights from Seattle to Harlingen (SEA-HRL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Harlingen

Wed, Nov 11 - Thu, Nov 19
Southwest Logo
9:30 am - 9:50 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 20m2 stops Denver Intl Houston Hobby
Southwest Logo
12:50 pm - 10:20 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
11h 30m2 stops Houston Hobby Las Vegas Harry Reid Intl
$325Southwest
Tue, Nov 10 - Wed, Nov 11
United Airlines Logo
1:58 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
5:25 pm - 10:51 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 26m1 stop Houston George Bush Intcntl
$335United Airlines
Tue, Nov 10 - Wed, Nov 11
United Airlines Logo
1:58 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
1:59 pm - 11:15 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
11h 16m2 stops Houston George Bush Intcntl Denver Intl
$340United Airlines
Tue, Nov 10 - Wed, Nov 11
United Airlines Logo
6:00 am - 7:47 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
11h 47m2 stops Los Angeles Los Angeles Houston George Bush Intcntl
United Airlines Logo
5:05 am - 6:33 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
15h 28m2 stops Houston George Bush Intcntl San Francisco
$345United Airlines
Wed, Nov 11 - Thu, Nov 19
Southwest Logo
9:30 am - 9:50 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 20m2 stops Denver Intl Houston Hobby
Southwest Logo
7:25 am - 6:35 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
13h 10m1 stop Austin Bergstrom
$351Southwest
Wed, Nov 11 - Thu, Nov 19
American Airlines Logo
2:07 pm - 10:59 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 52m1 stop Dallas/Fort Worth
American Airlines Logo
2:50 pm - 10:23 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
9h 33m1 stop Dallas/Fort Worth
$376American Airlines
Thu, Dec 17 - Tue, Jan 5
Southwest Logo
5:15 am - 4:05 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
8h 50m2 stops Phoenix Sky Harbor Intl Houston Hobby
Southwest Logo
7:25 am - 6:35 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
13h 10m1 stop Austin Bergstrom
$390Southwest
Thu, Dec 17 - Tue, Jan 5
Southwest Logo
8:30 am - 9:25 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 55m1 stop Austin Bergstrom
Southwest Logo
7:25 am - 6:35 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
13h 10m1 stop Austin Bergstrom
$400Southwest
Thu, Dec 17 - Tue, Jan 5
Southwest Logo
1:55 pm - 11:30 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
7h 35m2 stops Denver Intl Houston Hobby
Southwest Logo
6:20 am - 4:00 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
11h 40m2 stops Houston Hobby Oakland
$414Southwest
Sun, Sep 27 - Thu, Oct 1
American Airlines Logo
5:30 am - 4:06 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
8h 36m1 stop Dallas/Fort Worth
American Airlines Logo
4:53 pm - 11:09 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 16m1 stop Dallas/Fort Worth
$494American Airlines
Booking Insights

Price, demand and travel trends for Seattle to Harlingen flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Harlingen with more confidence.

How much is a round-trip flight from Seattle to Harlingen?

Round-trip flights from Seattle to Harlingen start at $325. Prices are below average for this route right now, with typical round-trip fares ranging from $383 to $585. The lowest price found in the past 5 days was $325 on Southwest.

What's the cheapest day of the week to fly from Seattle to Harlingen?

Thursday is the cheapest day of the week to fly from Seattle to Harlingen, it is 30% cheaper than the average day. Monday is the most expensive day with flight prices 84% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Seattle to Harlingen flights

Low season

August

Cheapest flight

$191
Most popular time to fly and prices are also 38% lower on average.
Flight from Seattle to Harlingen

When to book flights from Seattle to Harlingen

Are your dates flexible? Find out the best times to travel from Seattle to Harlingen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Harlingen flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Seattle to Harlingen?

    Flights from Seattle to Harlingen usually depart from Seattle/Tacoma Intl (SEA) and arrive at Harlingen Valley Intl (HRL).

  • What cabin classes can I book on flights from Seattle to Harlingen?

    Only Economy Class is available on flights from Seattle to Harlingen.

  • Which airports do connecting flights from Seattle to Harlingen pass through?

    One-stop flights from Seattle to Harlingen most commonly connect through:

    • Dallas/Fort Worth (DFW) - 82% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 10% of one-stop connections
    • Austin Bergstrom (AUS) - 6% of one-stop connections
    • Minneapolis St Paul (MSP) - 2% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Harlingen?

    Yes. Being flexible with your travel dates can save you up to 62% on the Seattle to Harlingen route. Thursday is the cheapest departure day at $317 round-trip on average, while Monday is the most expensive at $832, a difference of $515. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Seattle to Harlingen?

    A nonstop flight from Seattle to Harlingen takes 0h 00m, covering 1,984 miles.

  • Do I need a passport to fly from Seattle to Harlingen?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Seattle to Harlingen changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $325 to $1,212. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Seattle to Harlingen looking right now?

    One-way fares from Seattle to Harlingen are currently in line with typical prices for this route. Average one-way fares are about $271.

  • How much time can I save by choosing a different layover airport from Seattle to Harlingen?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 7h 14m, compared with 7h 32m via Houston George Bush Intcntl (IAH) and 9h 20m via Austin Bergstrom (AUS).

  • What is the time difference between Seattle and Harlingen?

    Harlingen is 2 hours ahead of Seattle (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Harlingen Valley Intl Airport (HRL)?

    Harlingen Valley Intl Airport (HRL) hosts 5 major car rental companies, with daily rates starting from around $30 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Enterprise Rent-A-Car
    • Avis

  • How much should I expect to pay for a Seattle to Harlingen flight?

    Round-trip flights from Seattle to Harlingen range from $383 to $585, with an average of $450 over the past 12 months. Anything below $383 counts as a good deal.

Your guide to booking Seattle to Harlingen flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Monday. On this route, Thursday flights average $317 - about $515 less than Monday (62% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Harlingen trip for January. Fares historically average $278 round-trip in that month - typically $1,006 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Seattle to Harlingen

Complete your trip to Harlingen with a hotel stay or car rental

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