FlightsFrom Udon Thani

To Seoul

Cheap Flights from Udon Thani to Seoul

Browse current best options from Udon Thani. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Udon Thani

RatePunk searches hundreds of travel sites at once for deals on flights to Seoul

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Udon Thani to Seoul

Explore current cheapest deals departing from Udon Thani to Seoul

September 16 - September 28

Cheapest
Best
Earliest

UTH - Seoul

$319

$351

Round trip

November 5 - November 15

UTH - Seoul

$312

$427

Round trip

November 12 - November 15

Best

UTH - Seoul

$328

$427

Round trip

November 12 - November 27

UTH - Seoul

$306

$428

Round trip

November 5 - November 12

UTH - Seoul

$321

$428

Round trip

November 5 - November 27

UTH - Seoul

$301

$428

Round trip

November 5 - November 26

UTH - Seoul

$301

$428

Round trip

November 12 - November 26

UTH - Seoul

$311

$428

Round trip

November 5 - November 25

UTH - Seoul

$301

$428

Round trip

October 1 - October 6

UTH - Seoul

$329

$482

Round trip

Unlock all 500+ flight deals to Seoul and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Udon Thani to Seoul

Most itineraries for cheap flights from Udon Thani to Seoul connect at least once. Right now, fares to Seoul are above the typical level. Prices typically range from $334–$421, with a median of $396. Currently, 0% of recent fares are classified as a good price.
When is the cheapest time to fly from Udon Thani to Seoul? The most affordable months to fly are August, with a median fare of $345, followed by September at $364, and June with a median of $376. These months offer more competitive pricing compared to the overall median.
A typical journey from Udon Thani to Seoul takes about 21h 50m, including connections. Since most itineraries connect at least once, this duration accounts for the layovers involved in reaching Seoul. Most itineraries connect at least once, with a median of 2 stopovers when connecting.
The flight distance from Udon Thani to Seoul is 3213 kilometers. This route is classified as a medium-haul journey, indicating a significant but not extremely long travel distance. New deals show up several times a week, suggesting a regular cadence of flight options.

How much is a round trip from Udon Thani to Seoul

Regular price: $270 - $692

Prices are currently within the regular range.

The regular price range for flights from Udon Thani to Seoul is $270 to $692. The current lowest deal is $351 with MyTravel Airways, for travel from Sep 16-Sep 28.

now $351

Low $270

High $692

The cheapest time to fly from Udon Thani to Seoul

The cheapest month to fly from Udon Thani to Seoul is August, with a median price of $345. The most expensive month is April, with a median price of $453. Prices are generally lower from May to September.

August

Cheapest

Flights from $345

April

Most Expensive

Flights from $453

Apr
May
Jun
Jul
Aug
Sep
Oct

Direct flights from Udon Thani to Seoul

Airline logo

MyTravel Airways

Airline logo

Thai Airways International

Airline logo

Thai AirAsia

Airline logo

Arcus-Air Logistic

Last-minute flights going from Udon Thani to Seoul

Mon, Jun 22

⌛ Last-Minute

UTH - Seoul

Thai AirAsia

Udon Thani (UTH) - Seoul (ICN)

Thai AirAsia

$374

$674

One-way

Tue, Jun 23

⌛ Last-Minute

UTH - Seoul

MyTravel Airways

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways

$372

$565

One-way

Thu, Jul 2

⌛ Last-Minute

UTH - Seoul

Thai Airways InternationalThai Airways International

Udon Thani (UTH) - Seoul (ICN)

Thai Airways International, Sierra National Airlines

$311

$549

One-way

Thu, Jul 2

⌛ Last-Minute

UTH - Seoul

Thai Airways InternationalThai Airways International

Udon Thani (UTH) - Seoul (ICN)

Thai Airways International, Sierra National Airlines

$286

$554

One-way

Thu, Jul 2

⌛ Last-Minute

UTH - Seoul

Thai Airways InternationalThai Airways International

Udon Thani (UTH) - Seoul (ICN)

Thai Airways International, Sierra National Airlines

$291

$560

One-way

Thu, Jul 2

⌛ Last-Minute

UTH - Seoul

Thai Airways InternationalThai Airways International

Udon Thani (UTH) - Seoul (ICN)

Thai Airways International, Sierra National Airlines

$294

$566

One-way

Biggest price drops on these dates for flights from Udon Thani to Seoul

12 nights

Sep 16 - Sep 28

$319  →  $351

10%

3 nights

Nov 12 - Nov 15

$328  →  $427

30%

7 nights

Nov 5 - Nov 12

$321  →  $428

33%

10 nights

Nov 5 - Nov 15

$312  →  $427

37%

Popular Airports to fly from Udon Thani to Seoul

Udon Thani - Seoul route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for Udon Thani to Seoul are above the typical level, with a median price of $396.

📅 Best time to fly

August is historically the cheapest month to fly.

Historically, August is the cheapest month to fly from Udon Thani to Seoul, with a median price of $345.

⏱️ Flight duration

Connecting flights average 21h 50m.

Flights from Udon Thani to Seoul typically involve 2 stopovers, with a median duration of 21h 50m.

✈️ Airlines & availability

MyTravel Airways offers deals on this route.

MyTravel Airways, Thai Airways International, and Thai AirAsia offer deals for flights from Udon Thani to Seoul.

🏆 Airline highlight

MyTravel Airways has 18 deals for this route.

MyTravel Airways has provided 18 deals for flights from Udon Thani to Seoul, more than any other airline.

🎯 Booking tip

Deals appear regularly for this route.

Deals for flights from Udon Thani to Seoul appear regularly, with about 0.17 deals per day.

Udon Thani main airports to depart from

Udon Thani International (UTH)

Cheapest

Udon Thani International Airport is a good choice for flights from Udon Thani to Seoul.

📍 ~3 km from city center (reachable by car)

💸 Flights from ~$351

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Incheon International Airport is a major hub, offering diverse connections for your trip to Seoul.

📍 ~50 km from Seoul (reachable by train, bus, or taxi)

💸 Flights from ~$351

Gimpo International (GMP)

Gimpo International Airport provides convenient access to Seoul and surrounding areas.

📍 ~20 km from Seoul (reachable by train, bus, or taxi)

💸 Flights from ~$444

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Cheongju International is a practical alternative for Seoul due to its proximity and international status.

📍 ~115 km from Seoul (reachable by express bus and rail services)

💸 Flights from ~$408

Gimhae International (PUS)

Gimhae International is a major international gateway and a reliable alternative for flights to the region.

📍 ~320 km from Seoul (reachable by KTX high-speed rail)

💸 Flights from ~$378

Daegu International (TAE)

Cheapest

Daegu International offers a good selection of international regional flights and efficient terminal processing.

📍 ~240 km from Seoul (reachable by high-speed rail)

💸 Flights from ~$358

Wonju (WJU)

Wonju is geographically the closest candidate airport to Seoul, useful for specific domestic connections.

📍 ~90 km from Seoul (reachable by car)

💸 Flights from ~$541

Gwangju (KWJ)

Gwangju is a major regional airport with KTX connectivity, an alternative for domestic travel.

📍 ~270 km from Seoul (reachable by KTX)

💸 Flights from ~$500

Business & First Class Flight Deals to Seoul

Discover luxury on the budget with premium cabin class on flights from Udon Thani to Seoul.

Elite

Best Elite deals to Seoul

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From UTH

Elite

Jun 21

Seoul, South Korea

70% AI deal score

$1,588

From UTH

Elite

Jun 21

Seoul, South Korea

70% AI deal score

$1,588

From UTH

Elite

Jun 28

Seoul, South Korea

70% AI deal score

$1,588

From UTH

Elite

Jun 28

Seoul, South Korea

70% AI deal score

$1,588

From UTH

Elite

Jun 21

Seoul, South Korea

70% AI deal score

$1,588

From UTH

Elite

Jun 21

Seoul, South Korea

70% AI deal score

$1,593

From UTH

Elite

Jun 21

Seoul, South Korea

70% AI deal score

$1,593

From UTH

Elite

Jun 28

Seoul, South Korea

70% AI deal score

$1,593

From UTH

Elite

Jun 28

Seoul, South Korea

70% AI deal score

$1,593

From UTH

Elite

Jun 24

Seoul, South Korea

70% AI deal score

$1,594

From UTH

Elite

Jun 24

Seoul, South Korea

70% AI deal score

$1,594

From UTH

Elite

Jun 24

Seoul, South Korea

70% AI deal score

$1,594

From UTH

Elite

Jun 24

Seoul, South Korea

70% AI deal score

$1,598

From UTH

Elite

Jun 24

Seoul, South Korea

70% AI deal score

$1,598

From UTH

Elite

Jun 21

Seoul, South Korea

70% AI deal score

$1,621

From UTH

Elite

Jun 28

Seoul, South Korea

69% AI deal score

$1,621

From UTH

Elite

Jun 24

Seoul, South Korea

69% AI deal score

$1,627

From UTH

Elite

Aug 16

Seoul, South Korea

69% AI deal score

$1,653

From UTH

Elite

Jun 25

Seoul, South Korea

69% AI deal score

$1,678

From UTH

Elite

Jul 06

Seoul, South Korea

68% AI deal score

$1,823

From UTH

Elite

Jul 06

Seoul, South Korea

68% AI deal score

$1,867

From UTH

Elite

Dec 05

Seoul, South Korea

49% AI deal score

$3,073

From UTH

Elite

Dec 03

Seoul, South Korea

49% AI deal score

$3,092

From UTH

Elite

Dec 03

Seoul, South Korea

49% AI deal score

$3,103

From UTH

Elite

Sep 28

Seoul, South Korea

48% AI deal score

$2,596

From UTH

Elite

Sep 28

Seoul, South Korea

48% AI deal score

$2,607

Frequently Asked Questions About Flights to Seoul

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking in advance often provides more options and potentially lower prices, especially for popular routes. However, last-minute deals can sometimes appear, so it's wise to monitor prices. There isn't a single 'best' time, as prices can fluctuate.

Comparing nearby airports can sometimes lead to more affordable flight options or different schedules. While it may add to your travel time, the potential savings could be significant. Always check transportation costs and convenience from alternative airports.