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Cheap flights from Seattle to Harlingen from $317

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
11:45 pm - 10:08 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
8h 23m1 stop Dallas/Fort Worth
American Airlines Logo
5:50 am - 11:14 amHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 24m1 stop Dallas/Fort Worth
$317American Airlines
Tue, Oct 13 - Tue, Oct 20
American Airlines Logo
12:25 am - 10:08 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
7h 43m1 stop Dallas/Fort Worth
American Airlines Logo
6:42 pm - 12:10 amHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 28m1 stop Dallas/Fort Worth
$317American Airlines
Mon, Oct 12 - Tue, Oct 20
United Airlines Logo
12:10 pm - 9:52 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
7h 42m1 stop Houston George Bush Intcntl
United Airlines Logo
7:15 am - 4:14 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
10h 59m2 stops Houston George Bush Intcntl San Francisco
$322United Airlines
Thu, Sep 10 - Sat, Sep 12
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
10:44 am - 4:54 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 10m1 stop Dallas/Fort Worth
$338American Airlines
Thu, Dec 10 - Tue, Dec 15
Southwest Logo
11:10 am - 10:50 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 40m2 stops Phoenix Sky Harbor Intl Austin Bergstrom
Southwest Logo
6:15 am - 2:20 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
10h 05m2 stops Houston Hobby Denver Intl
$358Southwest
Fri, Oct 23 - Tue, Oct 27
American Airlines Logo
2:26 pm - 10:50 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 24m1 stop Dallas/Fort Worth
American Airlines Logo
5:50 am - 11:14 amHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 24m1 stop Dallas/Fort Worth
$366American Airlines
Fri, Oct 23 - Tue, Oct 27
Southwest Logo
5:35 am - 5:35 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 00m2 stops Phoenix Sky Harbor Intl Dallas Love Field
Southwest Logo
4:35 pm - 11:55 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
9h 20m2 stops Houston Hobby Phoenix Sky Harbor Intl
$368Southwest
Tue, Oct 13 - Tue, Oct 20
Southwest Logo
9:25 am - 8:40 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 15m2 stops Denver Intl Austin Bergstrom
Southwest Logo
7:25 am - 6:35 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
13h 10m1 stop Austin Bergstrom
$370Southwest
Thu, Dec 10 - Tue, Dec 15
Southwest Logo
9:25 am - 9:45 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 20m2 stops Denver Intl Houston Hobby
Southwest Logo
7:25 am - 5:50 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
12h 25m2 stops Austin Bergstrom Denver Intl
$375Southwest
Thu, Dec 10 - Tue, Dec 15
Southwest Logo
11:10 am - 10:50 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 40m2 stops Phoenix Sky Harbor Intl Austin Bergstrom
Southwest Logo
6:15 am - 2:20 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
10h 05m2 stops Houston Hobby Denver Intl
$376Southwest
Fri, Oct 23 - Tue, Oct 27

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American Airlines flights from Seattle to Harlingen

Our best American Airlines deals on Seattle to Harlingen flight tickets
American Airlines
Oct 12
SEA12:25 amSeattle/Tacoma Intl
7h 43m
1 stop
HRL10:08 amHarlingen Valley Intl
Oct 20
HRL6:42 pmHarlingen Valley Intl
7h 28m
1 stop
SEA12:10 amSeattle/Tacoma Intl
$317
American Airlines
Dec 10
SEA2:07 pmSeattle/Tacoma Intl
6h 52m
1 stop
HRL10:59 pmHarlingen Valley Intl
Dec 15
HRL10:44 amHarlingen Valley Intl
8h 10m
1 stop
SEA4:54 pmSeattle/Tacoma Intl
$338
American Airlines
Oct 23
SEA2:26 pmSeattle/Tacoma Intl
6h 24m
1 stop
HRL10:50 pmHarlingen Valley Intl
Oct 27
HRL5:50 amHarlingen Valley Intl
7h 24m
1 stop
SEA11:14 amSeattle/Tacoma Intl
$366

Southwest flights from Seattle to Harlingen

Our best Southwest deals on Seattle to Harlingen flight tickets
Southwest
Oct 23
SEA11:10 amSeattle/Tacoma Intl
9h 40m
2 stops
HRL10:50 pmHarlingen Valley Intl
Oct 27
HRL6:15 amHarlingen Valley Intl
10h 05m
2 stops
SEA2:20 pmSeattle/Tacoma Intl
$358
Southwest
Oct 13
SEA5:35 amSeattle/Tacoma Intl
10h 00m
2 stops
HRL5:35 pmHarlingen Valley Intl
Oct 20
HRL4:35 pmHarlingen Valley Intl
9h 20m
2 stops
SEA11:55 pmSeattle/Tacoma Intl
$368
Southwest
Dec 10
SEA9:25 amSeattle/Tacoma Intl
9h 15m
2 stops
HRL8:40 pmHarlingen Valley Intl
Dec 15
HRL7:25 amHarlingen Valley Intl
13h 10m
1 stop
SEA6:35 pmSeattle/Tacoma Intl
$370

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

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Tue 10/13

11:45 pm-10:08 am

1 stop8h 23m

Harlingen Valley Intl

Tue 10/20

5:50 am-11:14 am

1 stop7h 24m

$317

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Mon 10/12

12:25 am-10:08 am

1 stop7h 43m

Harlingen Valley Intl

Tue 10/20

6:42 pm-12:10 am

1 stop7h 28m

$317

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 9/10

12:10 pm-9:52 pm

1 stop7h 42m

Harlingen Valley Intl

Sat 9/12

7:15 am-4:14 pm

2 stops10h 59m

$322

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/10

2:07 pm-10:59 pm

1 stop6h 52m

Harlingen Valley Intl

Tue 12/15

10:44 am-4:54 pm

1 stop8h 10m

$338

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Fri 10/23

11:10 am-10:50 pm

2 stops9h 40m

Harlingen Valley Intl

Tue 10/27

6:15 am-2:20 pm

2 stops10h 05m

$358
Quickest round-trip

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Fri 10/23

2:26 pm-10:50 pm

1 stop6h 24m

Harlingen Valley Intl

Tue 10/27

5:50 am-11:14 am

1 stop7h 24m

$366

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Tue 10/13

5:35 am-5:35 pm

2 stops10h 00m

Harlingen Valley Intl

Tue 10/20

4:35 pm-11:55 pm

2 stops9h 20m

$368

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/10

9:25 am-8:40 pm

2 stops9h 15m

Harlingen Valley Intl

Tue 12/15

7:25 am-6:35 pm

1 stop13h 10m

$370

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 12/10

9:25 am-9:45 pm

2 stops10h 20m

Harlingen Valley Intl

Tue 12/15

7:25 am-5:50 pm

2 stops12h 25m

$375

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Fri 10/23

11:10 am-10:50 pm

2 stops9h 40m

Harlingen Valley Intl

Tue 10/27

6:15 am-2:20 pm

2 stops10h 05m

$376

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 August, then book flights to Harlingen from Seattle during July instead. Flights to Harlingen in July, while not as cheap as those in August, still average around $0.

Can stopping save me money on Seattle to Harlingen flights?

You could potentially save up to 17% on your flight if you consider stops on a Seattle to Harlingen flight.

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

$317

Fastest flight time

6h 56m

Direct flights

None
The best flight deal from Seattle to Harlingen found on momondo in the last 72 hours is $317
The fastest flight from Seattle to Harlingen takes 6h 56m
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 6h 56m.

  • 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
7.1
11,995 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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