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Cheap flights from Seattle to Harlingen from $375

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.
Southwest Logo
8:30 am - 5:15 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 45m1 stop Austin Bergstrom
Southwest Logo
5:50 pm - 1:00 amHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
9h 10m2 stops Austin Bergstrom Phoenix Sky Harbor Intl
$375Southwest
Thu, Nov 5 - Mon, Nov 9
Southwest Logo
1:55 pm - 11:35 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
7h 40m2 stops Denver Intl Houston Hobby
Southwest Logo
5:50 pm - 1:00 amHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
9h 10m2 stops Austin Bergstrom Phoenix Sky Harbor Intl
$380Southwest
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
2:00 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 48m1 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
$403United Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
2:00 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 48m1 stop Houston George Bush Intcntl
United Airlines Logo
1:59 pm - 7:17 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 18m1 stop Houston George Bush Intcntl
$445United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
2:00 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 48m1 stop Houston George Bush Intcntl
United Airlines Logo
5:05 am - 4:12 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
13h 07m2 stops Houston George Bush Intcntl Los Angeles
$450United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
10:40 am - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 08m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
5:05 am - 2:39 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
11h 34m2 stops Houston George Bush Intcntl San Francisco
$456United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
2:00 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 48m1 stop Houston George Bush Intcntl
United Airlines Logo
1:59 pm - 7:17 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 18m1 stop Houston George Bush Intcntl
$502United Airlines
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
2:00 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 48m1 stop Houston George Bush Intcntl
United Airlines Logo
5:05 am - 4:26 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
13h 21m2 stops Houston George Bush Intcntl San Francisco
$507United Airlines
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
10:40 am - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
10h 08m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
5:05 am - 2:39 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
11h 34m2 stops Houston George Bush Intcntl San Francisco
$513United Airlines
Sun, Nov 1 - Sat, Nov 7
American Airlines Logo
7:30 am - 6:16 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
8h 46m1 stop Dallas/Fort Worth
American Airlines Logo
6:46 pm - 9:37 amHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
16h 51m1 stop Dallas/Fort Worth
$771American Airlines
Fri, Nov 27 - Mon, Nov 30

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United Airlines flights from Seattle to Harlingen

Our best United Airlines deals on Seattle to Harlingen flight tickets
United Airlines
Feb 7
SEA7:00 amSeattle/Tacoma Intl
6h 53m
1 stop
HRL3:53 pmHarlingen Valley Intl
Feb 13
HRL4:24 pmHarlingen Valley Intl
8h 14m
1 stop
SEA10:38 pmSeattle/Tacoma Intl
$277
United Airlines
Feb 7
SEA7:00 amSeattle/Tacoma Intl
6h 53m
1 stop
HRL3:53 pmHarlingen Valley Intl
Feb 13
HRL1:59 pmHarlingen Valley Intl
11h 35m
2 stops
SEA11:34 pmSeattle/Tacoma Intl
$282
United Airlines
Nov 5
SEA2:00 pmSeattle/Tacoma Intl
6h 48m
1 stop
HRL10:48 pmHarlingen Valley Intl
Nov 9
HRL5:25 pmHarlingen Valley Intl
7h 26m
1 stop
SEA10:51 pmSeattle/Tacoma Intl
$403

Southwest flights from Seattle to Harlingen

Our best Southwest deals on Seattle to Harlingen flight tickets
Southwest
Nov 5
SEA8:30 amSeattle/Tacoma Intl
6h 45m
1 stop
HRL5:15 pmHarlingen Valley Intl
Nov 9
HRL5:50 pmHarlingen Valley Intl
9h 10m
2 stops
SEA1:00 amSeattle/Tacoma Intl
$375
Southwest
Nov 5
SEA1:55 pmSeattle/Tacoma Intl
7h 40m
2 stops
HRL11:35 pmHarlingen Valley Intl
Nov 9
HRL5:50 pmHarlingen Valley Intl
9h 10m
2 stops
SEA1:00 amSeattle/Tacoma Intl
$380
Southwest
Nov 27
SEA8:30 amSeattle/Tacoma Intl
11h 00m
1 stop
HRL9:30 pmHarlingen Valley Intl
Nov 30
HRL5:45 pmHarlingen Valley Intl
10h 00m
2 stops
SEA1:45 amSeattle/Tacoma Intl
$677

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

Thu 11/5

8:30 am-5:15 pm

1 stop6h 45m

Harlingen Valley Intl

Mon 11/9

5:50 pm-1:00 am

2 stops9h 10m

$375

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 11/5

1:55 pm-11:35 pm

2 stops7h 40m

Harlingen Valley Intl

Mon 11/9

5:50 pm-1:00 am

2 stops9h 10m

$380

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Thu 11/5

2:00 pm-10:48 pm

1 stop6h 48m

Harlingen Valley Intl

Mon 11/9

5:25 pm-10:51 pm

1 stop7h 26m

$403
Quickest round-trip

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Tue 11/3

2:00 pm-10:48 pm

1 stop6h 48m

Harlingen Valley Intl

Sat 11/7

1:59 pm-7:17 pm

1 stop7h 18m

$445

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Tue 11/3

2:00 pm-10:48 pm

1 stop6h 48m

Harlingen Valley Intl

Sat 11/7

5:05 am-4:12 pm

2 stops13h 07m

$450

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Tue 11/3

10:40 am-10:48 pm

2 stops10h 08m

Harlingen Valley Intl

Sat 11/7

5:05 am-2:39 pm

2 stops11h 34m

$456

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Sun 11/1

2:00 pm-10:48 pm

1 stop6h 48m

Harlingen Valley Intl

Sat 11/7

1:59 pm-7:17 pm

1 stop7h 18m

$502

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Sun 11/1

2:00 pm-10:48 pm

1 stop6h 48m

Harlingen Valley Intl

Sat 11/7

5:05 am-4:26 pm

2 stops13h 21m

$507

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Sun 11/1

10:40 am-10:48 pm

2 stops10h 08m

Harlingen Valley Intl

Sat 11/7

5:05 am-2:39 pm

2 stops11h 34m

$513

SeattleHarlingen

SEA Seattle/Tacoma Intl - HRL Harlingen Valley Intl

SEAHRL

Seattle/Tacoma Intl

Fri 11/27

7:30 am-6:16 pm

1 stop8h 46m

Harlingen Valley Intl

Mon 11/30

6:46 pm-9:37 am

1 stop16h 51m

$771

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 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.

Can stopping save me money on Seattle to Harlingen flights?

You could potentially save up to 4% 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

$375

Fastest flight time

6h 45m

Direct flights

None
The best flight deal from Seattle to Harlingen found on momondo in the last 72 hours is $375
The fastest flight from Seattle to Harlingen takes 6h 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 6h 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
12,184 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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