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SEA - HRL

$293 Find cheap flights from Seattle to Harlingen, Texas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Harlingen departing on 6/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/1
Sat 6/8

Search hundreds of travel sites at once for deals on flights to Harlingen

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Harlingen, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Harlingen, as well as popular online travel agencies
In the last 7 days travelers have searched 43,740,974 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Seattle to Harlingen (SEA-HRL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Harlingen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:59 pm - 9:58 amSEA-HRL
7h 59m1 stop
6:13 pm - 9:24 amHRL-SEA
17h 11m1 stop
$518American Airlines
Find Deal
Wed, Oct 16 - Sun, Oct 20
1:15 am - 11:50 amSEA-HRL
8h 35m1 stop
8:05 pm - 10:49 amHRL-SEA
16h 44m1 stop
$536American Airlines
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Tue, May 28 - Mon, Jun 3
5:43 am - 3:59 pmSEA-HRL
8h 16m1 stop
6:13 pm - 9:24 amHRL-SEA
17h 11m1 stop
$581American Airlines
Find Deal
Thu, Oct 17 - Sun, Oct 20
5:00 am - 6:01 pmSEA-HRL
11h 01m2 stops
6:13 pm - 9:24 amHRL-SEA
17h 11m1 stop
$586American Airlines
Find Deal
Wed, Oct 16 - Sun, Oct 20
5:00 am - 7:18 pmSEA-HRL
12h 18m2 stops
8:05 pm - 10:49 amHRL-SEA
16h 44m1 stop
$636American Airlines
Find Deal
Wed, May 29 - Mon, Jun 3
11:50 pm - 10:55 amSEA-HRL
9h 05m1 stop
5:15 pm - 10:40 amHRL-SEA
19h 25m3 stops
$710United Airlines
Find Deal
Wed, May 29 - Mon, Jun 3
11:05 am - 10:52 pmSEA-HRL
9h 47m2 stops
5:15 pm - 10:40 amHRL-SEA
19h 25m3 stops
$715United Airlines
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Wed, May 29 - Mon, Jun 3
6:45 am - 11:15 pmSEA-HRL
14h 30m2 stops
5:16 pm - 10:47 pmHRL-SEA
7h 31m1 stop
$734United Airlines
Find Deal
Thu, Oct 17 - Sun, Oct 20
8:38 am - 11:15 pmSEA-HRL
12h 37m2 stops
7:27 am - 10:22 pmHRL-SEA
16h 55m2 stops
$817United Airlines
Find Deal
Wed, Oct 16 - Sun, Oct 20
1:15 am - 11:50 amSEA-HRL
8h 35m1 stop
10:25 am - 8:50 pmHRL-SEA
12h 25m2 stops
$886American Airlines
Find Deal
Tue, May 28 - Mon, Jun 3

Flights from Seattle to Harlingen - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Harlingen to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all flights from Seattle to Harlingen, Texas clicked on KAYAK for each day over the last 12 months.
When flying from Seattle to Harlingen, you should consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

Which airlines provide the cheapest flights from Seattle to Harlingen?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Harlingen from Seattle were found on American Airlines ($293) and United Airlines ($507), and the lowest round-trip tickets were found on American Airlines ($518) and United Airlines ($710).

Good to know

Low season

October

High season

April

Cheapest flight

$293
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 30% 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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Harlingen

  • What is the cheapest flight from Seattle to Harlingen, Texas?

    In the last 3 days, the lowest price for a flight from Seattle to Harlingen, Texas was $293 for a one-way ticket and $518 for a round-trip.

  • Do I need a passport to fly between Seattle and Harlingen?

    No

  • Which aircraft models fly most regularly from Seattle to Harlingen?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Harlingen?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Harlingen, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Harlingen, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Harlingen are United Airlines and American Airlines. With an average price for the route of $564 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $574 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Seattle to Harlingen?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Harlingen.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Harlingen?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Harlingen?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to Seattle with another airline. Booking your flights between Seattle and HRL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Harlingen?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Seattle to Harlingen

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Harlingen. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Harlingen? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11142 reviews
7.7Boarding
7.1Entertainment
7.2Comfort
8.1Crew
6.7Food
Airline reviews

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

2.0 MediocreMichael, Apr 2024PIT - IAH
Read more about United Airlines reviews

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

It was delayed several hours which delayed our connection in Denver. Not happy.

Ok, but comfort was lacking as the seats were way to small

All good except paid for wifi that did not work

Some of these FA’s need attitude check. Snarky bitches

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

Missed the flight because of them and up geting a rental car

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

No problems with flight. Even though I had a short layover in DFW, I was still able to easily make my connection.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Late boarding to clean plane from previous flight; initial boarding announcement not loud enough; fantastic cabin attendant front of plane

Delayed flight, few announcements with information, no comps, cluster f boarding because zones weren’t spread out and announced loud and repeatedly, staff did their job -nothing more nothing less, annoying kids were speaking and kicking the heck out of the back of my seat and parents weren’t willing to parent… so another typical day of air travel in the US.,

Book cheap flights from Seattle to Harlingen

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Harlingen found on KAYAK in the last 72 hours.
6/20Thu
1 stopAmerican Airlines
8h 22mSEA-HRL
$293
6/21Fri
1 stopAmerican Airlines
15h 56mSEA-HRL
$318
6/21Fri
2 stopsAmerican Airlines
10h 59mSEA-HRL
$388
6/20Thu
2 stopsUnited Airlines
20h 27mSEA-HRL
$507
6/21Fri
3 stopsUnited Airlines
16h 30mSEA-HRL
$997

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Last minute flights from Seattle to Harlingen

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Harlingen that are departing in the next 10 days.
5/6Mon
multi-stopUnited Airlines
18h 50mSEA-HRL
5/8Wed
multi-stopUnited Airlines
12h 31mHRL-SEA
$614
5/6Mon
multi-stopUnited Airlines
18h 50mSEA-HRL
5/8Wed
multi-stopUnited Airlines
9h 06mHRL-SEA
$710
5/5Sun
multi-stopAmerican Airlines
6h 32mSEA-HRL
5/8Wed
multi-stopAmerican Airlines
7h 27mHRL-SEA
$826
5/5Sun
multi-stopAmerican Airlines
6h 32mSEA-HRL
5/8Wed
multi-stopAmerican Airlines
11h 58mHRL-SEA
$831

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Seattle - Harlingen Flights

Departure:

Seattle (SEA)United States

Destination:

Harlingen (HRL)United States

Return flight deals:

Harlingen - Seattle

Cabin classes: