$851 Find Cheap Flights from Harlingen to South Korea

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to South Korea departing on 2/16. 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
1 adult, Economy, 0 bags

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Book Cheap Harlingen to South Korea Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to South Korea 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Harlingen to South Korea

Mon, Feb 16 - Thu, Feb 19
United Airlines Logo
12:10 pm - 5:40 amHRL-ICN
26h 30m2 stops
United Airlines Logo
12:45 pm - 7:58 pmICN-HRL
22h 13m2 stops
$851United Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
American Airlines Logo
5:40 am - 4:45 pmHRL-ICN
20h 05m1 stop
American Airlines Logo
7:15 pm - 11:11 pmICN-HRL
18h 56m1 stop
$1,043American Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
American Airlines Logo
5:40 am - 4:45 pmHRL-ICN
20h 05m1 stop
American Airlines Logo
7:15 pm - 11:40 amICN-HRL
31h 25m1 stop
$1,063American Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
7:00 am - 5:40 amHRL-ICN
31h 40m2 stops
United Airlines Logo
6:00 pm - 9:49 pmICN-HRL
18h 49m2 stops
$1,075United Airlines
Find Deal
Mon, Feb 16 - Thu, Feb 19
American Airlines Logo
6:00 am - 4:45 pmHRL-ICN
19h 45m1 stop
American Airlines Logo
6:50 pm - 7:37 pmICN-HRL
15h 47m1 stop
$1,414American Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
United Airlines Logo
5:00 am - 5:40 amHRL-ICN
33h 40m2 stops
United Airlines Logo
6:00 pm - 11:04 amICN-HRL
32h 04m2 stops
$1,430United Airlines
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Tue, Dec 2 - Tue, Dec 9
Qatar Airways Logo
12:11 pm - 5:15 pmHRL-ICN
38h 04m2 stops
Qatar Airways Logo
12:20 am - 3:29 pmICN-HRL
54h 09m2 stops
$1,937Qatar Airways
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Sun, Nov 30 - Sat, Dec 6
Multiple Airlines Logo
12:11 pm - 5:15 pmHRL-ICN
38h 04m2 stops
Multiple Airlines Logo
12:20 am - 3:30 pmICN-HRL
54h 10m2 stops
$1,952Multiple Airlines
Find Deal
Mon, Feb 16 - Wed, Feb 18
Qatar Airways Logo
8:07 pm - 5:15 pmHRL-ICN
30h 08m2 stops
Qatar Airways Logo
12:20 am - 10:51 pmICN-HRL
37h 31m2 stops
$2,062Qatar Airways
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Tue, Dec 2 - Wed, Dec 10
Multiple Airlines Logo
4:08 pm - 5:15 pmHRL-ICN
34h 07m2 stops
Multiple Airlines Logo
3:00 pm - 7:30 pmICN-HRL
43h 30m3 stops
$2,314Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Harlingen to South Korea flights

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

Which airlines fly non-stop between Harlingen and South Korea?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Harlingen to South Korea.

There is just one airline that flies from Harlingen to South Korea direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is to Incheon Intl Airport (ICN) and costs $870.

Which airlines provide the cheapest flights from Harlingen to South Korea?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Harlingen to South Korea were found on United Airlines ($851) and American Airlines ($1,043).

Good to know

Cheapest flight$851
Flight from Harlingen to Seoul Incheon Airport

FAQs - booking South Korea flights

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

    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 Harlingen to South Korea.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Harlingen to South Korea 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 Harlingen to South Korea?

    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 from Harlingen to South Korea with an airline and back with another airline.

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

    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 from Harlingen to South Korea up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South Korea?

    The cheapest time of day to fly to South Korea is generally in the morning, when round-trip flights cost $1,862 on average. The most expensive time of day to fly to South Korea is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,862.

Reviews of the top airline flying from Harlingen to South Korea

 
Need help choosing which airline to fly with from Harlingen to South Korea? 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 8997 reviews
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

4.0 OkayNicole, Oct 2025IAH - MCI
Read more United Airlines reviews

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

Everything you need to know for your flight from Harlingen to South Korea

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