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$1,313+ Cheap flights from Harlingen (HRL) to Seoul (SEL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SEL
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from Harlingen to Seoul

Cheapest flights from Harlingen to Seoul
Explore the most affordable flight options available from Harlingen to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:59 pm
HRL
-
ICN
2 stops24h 21m
United Airlines
Sun 9/205:15 pm
ICN
-
HRL
2 stops36h 44m
United Airlines
Deal found 7/29$1,313
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:20 am
HRL
-
ICN
2 stops40h 05m
United Airlines
Sat 12/1212:45 pm
ICN
-
HRL
2 stops23h 59m
United Airlines
Deal found 7/26$1,413
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:18 pm
HRL
-
ICN
2 stops31h 42m
United Airlines
Thu 10/2211:30 am
ICN
-
HRL
2 stops22h 14m
United Airlines
Deal found 7/26$1,457
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:10 pm
HRL
-
ICN
1 stop31h 15m
American Airlines
Sat 12/126:50 pm
ICN
-
HRL
1 stop19h 01m
American Airlines
Deal found 7/26$1,513
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/82:30 pm
HRL
-
ICN
2 stops36h 25m
Delta
Sat 12/128:35 pm
ICN
-
HRL
1 stop31h 57m
Delta
Deal found 7/26$1,535
This Qatar Airways deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:04 pm
HRL
-
ICN
2 stops30h 11m
Multiple Airlines
Sat 12/1211:05 am
ICN
-
HRL
3 stops43h 24m
Multiple Airlines
Deal found 7/26$3,052

Find flight deals from Harlingen to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,313
(United Airlines)
Provider with most accurate pricing for Harlingen Valley Intl-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harlingen Valley Intl-Seoul (SEL) flights.
Search Deals
From Harlingen Valley Intl to Seoul (SEL)
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
Use the filters below to find and compare flights from Harlingen to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Wed 9/16

1:59 pm-4:20 am

2 stops24h 21m

Incheon Intl

Sun 9/20

5:15 pm-3:59 pm

2 stops36h 44m

$1,313

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Sun 10/18

5:18 pm-3:00 pm

2 stops31h 42m

Incheon Intl

Thu 10/22

11:30 am-7:44 pm

2 stops22h 14m

$1,457
Quickest round-trip

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Tue 12/8

6:10 pm-4:25 pm

1 stop31h 15m

Incheon Intl

Sat 12/12

6:50 pm-10:51 pm

1 stop19h 01m

$1,513

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Tue 12/8

2:30 pm-5:55 pm

2 stops36h 25m

Incheon Intl

Sat 12/12

8:35 pm-1:32 pm

1 stop31h 57m

$1,535

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Harlingen-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harlingen-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harlingen to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Harlingen with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Seoul

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated July 30, 2026.
Read reviews from past customers who have flown United Airlines from Harlingen to Seoul. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,046 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
10,046 reviews
United Airlines
7.4
Good
10,046 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Harlingen to Seoul?

    Harlingen Valley Intl (HRL) is the airport you will fly out of if you book a flight from Harlingen to Seoul. You should not have trouble finding flights to Seoul from Valley Intl; the airport handles an average of 0 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Harlingen airport to Seoul. It is only a 3.7 mi journey to Valley Intl (HRL) from Harlingen’s city center.

  • How long is the flight from Harlingen to Seoul?

    A quick flight from Harlingen to Seoul can take about 24h 21m. United Airlines provides one of the quickest options available for as low as $1,313. The distance from Harlingen to Seoul is about 7184 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Harlingen to Seoul round-trip?

    According to our current data, United Airlines ($870), offers the cheapest pricing from Harlingen to Seoul.

  • Can I find deals for flights from Harlingen to Seoul that include hotel bookings?

    Yes. In addition to deals on Harlingen to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Seoul.

  • Can I find deals for business class flights from Harlingen to Seoul?

    Yes. Cheapflights offers flight deals from Harlingen to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Harlingen to Seoul

Discover the top airline that operate flights from Harlingen to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$870Average$1,070FlexibilityNo cancel feeOn-time69%

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