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$850+ Cheap flights from Harlingen, TX (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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SEL
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Harlingen to Seoul

Best flights from Harlingen to Seoul
Discover carefully curated flight deals from Harlingen to Seoul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This United Airlines deal was found by Cheapflights users on 12/21. 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 1/1812:10 pmHRL - ICN
2 stops26h 30mUnited Airlines
Thu 1/2212:45 pmICN - HRL
2 stops24h 14mUnited Airlines
Deal found 12/21$850
This American Airlines deal was found by Cheapflights users on 12/21. 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.
Sun 1/186:02 amHRL - ICN
1 stop19h 43mAmerican Airlines
Thu 1/227:15 pmICN - HRL
1 stop19h 06mAmerican Airlines
Deal found 12/21$916
This Delta deal was found by Cheapflights users on 12/21. 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.
Sun 1/183:39 pmHRL - ICN
1 stop32h 51mDelta
Thu 1/228:05 pmICN - HRL
2 stops33h 34mDelta
Deal found 12/21$939
This United Airlines deal was found by Cheapflights users on 12/20. 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 2/2412:10 pmHRL - ICN
2 stops26h 30mUnited Airlines
Sat 2/2812:45 pmICN - HRL
2 stops24h 14mUnited Airlines
Deal found 12/20$850
This Qatar Airways deal was found by Cheapflights users on 12/21. 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.
Sun 1/186:44 pmHRL - ICN
2 stops55h 31mQatar Airways
Thu 1/2210:00 amICN - HRL
3 stops43h 49mQatar Airways
Deal found 12/21$2,224

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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$850
(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 December 23, 2025.
Use the filters below to find and compare flights from Harlingen to Seoul that are best for you.

Fly from

Harlingen

Fly to

Seoul

Route

Depart

Return

Price

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Sun 1/18

12:10 pm-5:40 am

2 stops26h 30m

Incheon Intl

Thu 1/22

12:45 pm-9:59 pm

2 stops24h 14m

$850

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Tue 2/24

12:10 pm-5:40 am

2 stops26h 30m

Incheon Intl

Sat 2/28

12:45 pm-9:59 pm

2 stops24h 14m

$850

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Sun 1/18

6:02 am-4:45 pm

1 stop19h 43m

Incheon Intl

Thu 1/22

7:15 pm-11:21 pm

1 stop19h 06m

$916

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Sun 1/18

3:39 pm-3:30 pm

1 stop32h 51m

Incheon Intl

Thu 1/22

8:05 pm-2:39 pm

2 stops33h 34m

$939

HarlingenIncheon

HRL - ICN

HRLICN

Harlingen Valley Intl

Sun 1/18

6:44 pm-5:15 pm

2 stops55h 31m

Incheon Intl

Thu 1/22

10:00 am-2:49 pm

3 stops43h 49m

$2,224

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Compare providers for flights from Harlingen to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harlingen to Seoul in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Harlingen, Texas-Seoul flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harlingen, Texas-Seoul flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harlingen, Texas-Seoul flights, Cheapflights users trust eDreams the most. eDreams 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, Texas-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 December 23, 2025.
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
9,105 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,105 reviews
United Airlines
7.4
Good
9,105 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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, Texas to Seoul?

    There are many flights that can get you from Harlingen, Texas to Seoul in 19h 43m. Fly via United Airlines, American Airlines, or Delta to get the fastest option. There are 7184 mi between Harlingen, Texas and Seoul. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$870Average$950FlexibilityNo cancel feeOn-time69%

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