Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Harlingen to Seattle from $270

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Harlingen to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:26 pm - 8:03 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 37m1 stop Dallas/Fort Worth
American Airlines Logo
2:07 pm - 11:31 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
7h 24m1 stop Dallas/Fort Worth
$307American Airlines
Tue, Dec 8 - Sat, Dec 12
American Airlines Logo
2:26 pm - 8:03 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 37m1 stop Dallas/Fort Worth
American Airlines Logo
12:25 am - 10:14 amSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
7h 49m1 stop Dallas/Fort Worth
$317American Airlines
Sat, Dec 5 - Mon, Dec 7
United Airlines Logo
2:00 pm - 7:32 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 32m1 stop Houston George Bush Intcntl
United Airlines Logo
7:00 am - 3:50 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 50m1 stop Houston George Bush Intcntl
$324United Airlines
Thu, Dec 10 - Mon, Dec 14
United Airlines Logo
7:15 am - 2:49 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
9h 34m1 stop Houston George Bush Intcntl
United Airlines Logo
1:59 pm - 10:48 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 49m1 stop Houston George Bush Intcntl
$336United Airlines
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
7:15 am - 12:48 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
7h 33m1 stop Houston George Bush Intcntl
United Airlines Logo
7:05 am - 4:01 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
6h 56m1 stop Houston George Bush Intcntl
$336United Airlines
Sat, Oct 24 - Wed, Oct 28
Southwest Logo
12:45 pm - 9:50 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
11h 05m2 stops Houston Hobby Denver Intl
Southwest Logo
5:40 am - 5:20 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 40m2 stops Phoenix Sky Harbor Intl Dallas Love Field
$348Southwest
Sat, Dec 5 - Tue, Dec 8
American Airlines Logo
10:44 am - 4:54 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
8h 10m1 stop Dallas/Fort Worth
American Airlines Logo
2:07 pm - 11:31 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
7h 24m1 stop Dallas/Fort Worth
$361American Airlines
Tue, Dec 8 - Sat, Dec 12
Southwest Logo
10:00 am - 5:30 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
9h 30m2 stops Houston Hobby Phoenix Sky Harbor Intl
Southwest Logo
9:10 am - 8:45 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 35m1 stop Austin Bergstrom
$375Southwest
Thu, Nov 26 - Tue, Dec 1
American Airlines Logo
2:26 pm - 10:11 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
9h 45m1 stop Dallas/Fort Worth
American Airlines Logo
6:20 am - 6:11 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 51m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$379American Airlines
Tue, Dec 8 - Sat, Dec 12
Southwest Logo
5:55 am - 5:30 pmHRL  Harlingen Valley Intl-SEA Seattle/Tacoma Intl
13h 35m2 stops Houston Hobby Phoenix Sky Harbor Intl
Southwest Logo
5:40 am - 5:20 pmSEA  Seattle/Tacoma Intl-HRL Harlingen Valley Intl
9h 40m2 stops Phoenix Sky Harbor Intl Dallas Love Field
$400Southwest
Thu, Nov 26 - Tue, Dec 1

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Southwest flights from Harlingen to Seattle

Our best Southwest deals on Harlingen to Seattle flight tickets
Southwest
Dec 5
HRL12:45 pmHarlingen Valley Intl
11h 05m
2 stops
SEA9:50 pmSeattle/Tacoma Intl
Dec 8
SEA5:40 amSeattle/Tacoma Intl
9h 40m
2 stops
HRL5:20 pmHarlingen Valley Intl
$348
Southwest
Dec 10
HRL7:25 amHarlingen Valley Intl
12h 25m
2 stops
SEA5:50 pmSeattle/Tacoma Intl
Dec 14
SEA9:25 amSeattle/Tacoma Intl
10h 20m
2 stops
HRL9:45 pmHarlingen Valley Intl
$444
Southwest
Sep 30
HRL7:25 amHarlingen Valley Intl
6h 50m
1 stop
SEA12:15 pmSeattle/Tacoma Intl
Oct 4
SEA8:20 pmSeattle/Tacoma Intl
13h 00m
2 stops
HRL11:20 amHarlingen Valley Intl
$448

American Airlines flights from Harlingen to Seattle

Our best American Airlines deals on Harlingen to Seattle flight tickets
American Airlines
Dec 8
HRL2:26 pmHarlingen Valley Intl
7h 37m
1 stop
SEA8:03 pmSeattle/Tacoma Intl
Dec 12
SEA2:07 pmSeattle/Tacoma Intl
7h 24m
1 stop
HRL11:31 pmHarlingen Valley Intl
$307
American Airlines
Dec 5
HRL2:26 pmHarlingen Valley Intl
7h 37m
1 stop
SEA8:03 pmSeattle/Tacoma Intl
Dec 7
SEA12:25 amSeattle/Tacoma Intl
7h 49m
1 stop
HRL10:14 amHarlingen Valley Intl
$317
American Airlines
Dec 8
HRL10:44 amHarlingen Valley Intl
8h 10m
1 stop
SEA4:54 pmSeattle/Tacoma Intl
Dec 12
SEA2:07 pmSeattle/Tacoma Intl
7h 24m
1 stop
HRL11:31 pmHarlingen Valley Intl
$361

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Tue 12/8

2:26 pm-8:03 pm

1 stop7h 37m

Seattle/Tacoma Intl

Sat 12/12

2:07 pm-11:31 pm

1 stop7h 24m

$307

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Sat 12/5

2:26 pm-8:03 pm

1 stop7h 37m

Seattle/Tacoma Intl

Mon 12/7

12:25 am-10:14 am

1 stop7h 49m

$317
Quickest round-trip

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Thu 12/10

2:00 pm-7:32 pm

1 stop7h 32m

Seattle/Tacoma Intl

Mon 12/14

7:00 am-3:50 pm

1 stop6h 50m

$324

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Sat 10/24

7:15 am-2:49 pm

1 stop9h 34m

Seattle/Tacoma Intl

Wed 10/28

1:59 pm-10:48 pm

1 stop6h 49m

$336

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Sat 10/24

7:15 am-12:48 pm

1 stop7h 33m

Seattle/Tacoma Intl

Wed 10/28

7:05 am-4:01 pm

1 stop6h 56m

$336

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Sat 12/5

12:45 pm-9:50 pm

2 stops11h 05m

Seattle/Tacoma Intl

Tue 12/8

5:40 am-5:20 pm

2 stops9h 40m

$348

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Tue 12/8

10:44 am-4:54 pm

1 stop8h 10m

Seattle/Tacoma Intl

Sat 12/12

2:07 pm-11:31 pm

1 stop7h 24m

$361

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Thu 11/26

10:00 am-5:30 pm

2 stops9h 30m

Seattle/Tacoma Intl

Tue 12/1

9:10 am-8:45 pm

1 stop9h 35m

$375

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Tue 12/8

2:26 pm-10:11 pm

1 stop9h 45m

Seattle/Tacoma Intl

Sat 12/12

6:20 am-6:11 pm

2 stops9h 51m

$379

HarlingenSeattle

HRL Harlingen Valley Intl - SEA Seattle/Tacoma Intl

HRLSEA

Harlingen Valley Intl

Thu 11/26

5:55 am-5:30 pm

2 stops13h 35m

Seattle/Tacoma Intl

Tue 12/1

5:40 am-5:20 pm

2 stops9h 40m

$400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to Seattle from

How to get the cheapest flight ticket from Harlingen to Seattle

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 typical price of a round-trip flight between Harlingen and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $374 to $586.
The lowest price recently found on this route was $307.

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Harlingen to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $263. If you don’t want to visit Seattle in February, then you should wait until April to fly from Harlingen, when ticket prices are also cheap, with an average price of $288.

Can stopping save me money on Harlingen to Seattle flights?

You could potentially save up to 27% on your flight if you consider stops on a Harlingen to Seattle flight.

How have Harlingen to Seattle flight prices changed over time?

When to book flights from Harlingen to Seattle

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

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

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

Best Price Found

$270

Fastest flight time

6h 50m

Direct flights

None
The best one-way flight to Seattle from Harlingen in the past 72 hours is $270. The best round-trip flight deal from Harlingen to Seattle found on momondo in the last 72 hours is $307.
The fastest flight from Harlingen to Seattle takes 6h 50m
There are no direct flights from Harlingen to Seattle. There are no popular flight routes from Harlingen to Seattle.
Search flight deals

Frequently asked questions about flying from Harlingen to Seattle

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

    The distance between Harlingen Valley Intl and Seattle/Tacoma Intl is about 1992.5 mi. In terms of flight time, this usually takes a little over 6h 50m.

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

    Prices for flights from Harlingen Valley Intl Airport to Seattle/Tacoma Intl Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Harlingen Valley Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma 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 Seattle/Tacoma 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 Harlingen to Seattle?

Best airlines flying from Harlingen to Seattle

Compare and see reviews for airlines that fly from Harlingen to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $215Free CancellationRating
7.1
12,077 reviews
Search American Airlines flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
10,224 reviews
Search United Airlines flights
SouthwestPriceFrom $297Free CancellationRating
8.0
4,189 reviews
Search Southwest flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Kent
Olympia
Redmond
Lakewood
Federal Way
Fife
Puyallup
Tukwila
Lynnwood
Cle Elum
Marysville
Lacey
Kirkland
Centralia
Shoreline

Why use momondo?

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

It is quick and easy to find Harlingen to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

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

Flights from Harlingen to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Harlingen to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 10/17
Sat 10/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States