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Cheap flights from Seattle to Harlingen from $179

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:07 pm - 10:54 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 47m1 stop Dallas/Fort Worth
American Airlines Logo
6:41 pm - 11:48 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 07m1 stop Dallas/Fort Worth
$357American Airlines
Fri, Dec 4 - Mon, Dec 7
United Airlines Logo
11:59 pm - 11:14 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 15m1 stop Houston George Bush Intcntl
United Airlines Logo
4:39 pm - 10:51 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 12m1 stop Houston George Bush Intcntl
$357United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
7:30 pm - 11:14 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
13h 44m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
4:39 pm - 10:51 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 12m1 stop Houston George Bush Intcntl
$362United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
7:30 pm - 11:14 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
13h 44m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
4:39 pm - 10:51 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 12m1 stop Houston George Bush Intcntl
$362United Airlines
Fri, Dec 4 - Mon, Dec 7
United Airlines Logo
11:59 pm - 11:14 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 15m1 stop Houston George Bush Intcntl
United Airlines Logo
4:39 pm - 10:51 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 12m1 stop Houston George Bush Intcntl
$369United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
7:30 pm - 11:14 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
13h 44m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
4:39 pm - 10:51 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 12m1 stop Houston George Bush Intcntl
$378United Airlines
Thu, Dec 3 - Sun, Dec 6
Southwest Logo
9:25 am - 9:50 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 25m2 stops Denver Intl Houston Hobby
Southwest Logo
4:45 pm - 12:45 amHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
10h 00m2 stops Houston Hobby Phoenix Sky Harbor Intl
$383Southwest
Thu, Dec 3 - Sun, Dec 6
United Airlines Logo
11:59 pm - 11:14 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 15m1 stop Houston George Bush Intcntl
United Airlines Logo
4:39 pm - 10:51 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 12m1 stop Houston George Bush Intcntl
$385United Airlines
Thu, Dec 3 - Sun, Dec 6
Southwest Logo
9:25 am - 8:45 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 20m2 stops Denver Intl Austin Bergstrom
Southwest Logo
12:50 pm - 10:50 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
12h 00m2 stops Houston Hobby Denver Intl
$388Southwest
Thu, Dec 3 - Mon, Dec 7
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
10:43 am - 4:59 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 16m1 stop Dallas/Fort Worth
$459American Airlines
Wed, Nov 18 - Mon, Nov 23

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United Airlines flights from Seattle to Harlingen

Our best United Airlines deals on Seattle to Harlingen flight tickets
United Airlines
Dec 3
SEA11:59 pmSeattle/Tacoma Intl
9h 15m
1 stop
HRL11:14 amHarlingen Valley Intl
Dec 7
HRL4:39 pmHarlingen Valley Intl
8h 12m
1 stop
SEA10:51 pmSeattle/Tacoma Intl
$357
United Airlines
Dec 3
SEA11:59 pmSeattle/Tacoma Intl
9h 15m
1 stop
HRL11:14 amHarlingen Valley Intl
Dec 7
HRL2:00 pmHarlingen Valley Intl
11h 44m
2 stops
SEA11:44 pmSeattle/Tacoma Intl
$362
United Airlines
Dec 5
SEA11:59 pmSeattle/Tacoma Intl
9h 15m
1 stop
HRL11:14 amHarlingen Valley Intl
Dec 8
HRL12:00 pmHarlingen Valley Intl
9h 32m
1 stop
SEA7:32 pmSeattle/Tacoma Intl
$457

Southwest flights from Seattle to Harlingen

Our best Southwest deals on Seattle to Harlingen flight tickets
Southwest
Dec 3
SEA9:25 amSeattle/Tacoma Intl
9h 20m
2 stops
HRL8:45 pmHarlingen Valley Intl
Dec 7
HRL12:50 pmHarlingen Valley Intl
12h 00m
2 stops
SEA10:50 pmSeattle/Tacoma Intl
$381
Southwest
Dec 3
SEA9:25 amSeattle/Tacoma Intl
10h 25m
2 stops
HRL9:50 pmHarlingen Valley Intl
Dec 6
HRL4:45 pmHarlingen Valley Intl
10h 00m
2 stops
SEA12:45 amSeattle/Tacoma Intl
$383
Southwest
Dec 3
SEA9:25 amSeattle/Tacoma Intl
9h 20m
2 stops
HRL8:45 pmHarlingen Valley Intl
Dec 7
HRL12:50 pmHarlingen Valley Intl
12h 00m
2 stops
SEA10:50 pmSeattle/Tacoma Intl
$388

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Fri 12/4

2:07 pm-10:54 pm

1 stop6h 47m

Harlingen Valley Intl

Mon 12/7

6:41 pm-11:48 pm

1 stop7h 07m

$357

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/3

11:59 pm-11:14 am

1 stop9h 15m

Harlingen Valley Intl

Mon 12/7

4:39 pm-10:51 pm

1 stop8h 12m

$357

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/3

7:30 pm-11:14 am

2 stops13h 44m

Harlingen Valley Intl

Mon 12/7

4:39 pm-10:51 pm

1 stop8h 12m

$362

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Fri 12/4

7:30 pm-11:14 am

2 stops13h 44m

Harlingen Valley Intl

Mon 12/7

4:39 pm-10:51 pm

1 stop8h 12m

$362

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/3

11:59 pm-11:14 am

1 stop9h 15m

Harlingen Valley Intl

Mon 12/7

4:39 pm-10:51 pm

1 stop8h 12m

$369

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/3

7:30 pm-11:14 am

2 stops13h 44m

Harlingen Valley Intl

Sun 12/6

4:39 pm-10:51 pm

1 stop8h 12m

$378

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/3

9:25 am-9:50 pm

2 stops10h 25m

Harlingen Valley Intl

Sun 12/6

4:45 pm-12:45 am

2 stops10h 00m

$383

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/3

11:59 pm-11:14 am

1 stop9h 15m

Harlingen Valley Intl

Sun 12/6

4:39 pm-10:51 pm

1 stop8h 12m

$385

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/3

9:25 am-8:45 pm

2 stops9h 20m

Harlingen Valley Intl

Mon 12/7

12:50 pm-10:50 pm

2 stops12h 00m

$388

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Wed 11/18

2:07 pm-10:59 pm

1 stop6h 52m

Harlingen Valley Intl

Mon 11/23

10:43 am-4:59 pm

1 stop8h 16m

$459

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Harlingen from

How to get the cheapest flight ticket from Seattle to Harlingen

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 month to fly to Harlingen?

If you aren’t able to travel during the month of July, then book flights to Harlingen from Seattle during May instead. Flights to Harlingen in May, while not as cheap as those in July, still average around $310.

When to book flights from Seattle to Harlingen

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Harlingen according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Harlingen (SEA to HRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Harlingen

Best Price Found

$179

Fastest flight time

8h 45m

Direct flights

None
The best one-way flight to Harlingen from Seattle in the past 72 hours is $179. The best round-trip flight deal from Seattle to Harlingen found on momondo in the last 72 hours is $357.
The fastest flight from Seattle to Harlingen takes 8h 45m
There are no direct flights from Seattle to Harlingen. There are no popular flight routes from Seattle to Harlingen.
Search flight deals

Frequently asked questions about flying from Seattle to Harlingen

  • How far is Seattle/Tacoma Intl to Harlingen Valley Intl by plane?

    Harlingen Valley Intl is 1992.5 mi away from Seattle/Tacoma Intl. By plane, this route typically takes 8h 45m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Harlingen Valley Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Harlingen Valley Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Harlingen Valley Intl Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Harlingen Valley Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Harlingen Valley Intl Airport.

  • What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

    The travel and health documents required for your trip to Harlingen Valley Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Harlingen Valley Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Harlingen?

Best airlines flying from Seattle to Harlingen

Compare and see reviews for airlines that fly from Seattle to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $237Free CancellationRating
7.0
12,231 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Harlingen. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Harlingen from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Harlingen from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Seattle to Harlingen flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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