Are direct flights from Udon Thani to Seoul always the best option?

Direct flights offer convenience and save time, but they are not always the cheapest option. Flights with layovers or connecting flights can often be more affordable. Consider your budget and time constraints when deciding between direct and connecting flights.

Can flexible travel dates help on Udon Thani to Seoul flights?

Absolutely, being flexible with your travel dates can significantly impact the price of your flight. Mid-week flights or those during off-peak seasons are often less expensive than weekend or holiday travel. Adjusting your departure or return by a few days may reveal better deals.

What extra costs should I check before booking Udon Thani to Seoul flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget to avoid surprises.

Flights From 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 today

456 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Aug 31, 2026.)

Today’s best flight deals from Udon Thani to Seoul

Explore current cheapest deals departing from Udon Thani to Seoul

2026-09-22 – 2026-09-28
UTH - Seoul
84% AI deal score
$351
$255
Round trip
2026-09-15 – 2026-09-28
UTH - Seoul
81% AI deal score
$316
$256
Round trip
2026-09-15 – 2026-09-29
UTH - Seoul
77% AI deal score
$316
$258
Round trip
2026-09-22 – 2026-09-29
UTH - Seoul
83% AI deal score
$352
$258
Round trip
2026-09-15 – 2026-09-16
UTH - Seoul
85% AI deal score
$385
$258
Round trip
2026-09-23 – 2026-09-28
UTH - Seoul
84% AI deal score
$361
$260
Round trip
2026-09-23 – 2026-09-26
UTH - Seoul
75% AI deal score
$369
$303
Round trip
2026-09-22 – 2026-09-26
UTH - Seoul
75% AI deal score
$373
$306
Round trip
2026-10-01 – 2026-10-06
UTH - Seoul
70% AI deal score
$331
$317
Round trip
2026-09-05 – 2026-09-10
UTH - Seoul
83% AI deal score
$428
$325
Round trip

Udon Thani to Seoul: Overview

Insights for flights from Udon Thani to Seoul

Right now, fares for flights from Udon Thani to Seoul are significantly below the typical level. Over the past 90 days, fares for this route typically ranged from $392–$469, with a median of $440. New deals for this route show up several times a week, suggesting a regular cadence of price changes.

When is the cheapest time to fly from Udon Thani to Seoul? The data indicates that August is typically the most affordable month, with a median fare of $345. Following closely are September, with a median fare of $364, and June, where the median fare is $376. Planning your trip during these months could lead to more favorable prices.

A typical journey from Udon Thani to Seoul takes approximately 21h 50m, including connections. This is a medium-haul route, covering a distance of 3,213 kilometers. Most itineraries for this route connect at least once, with the median number of stopovers for connecting flights being 2.

How much is a round trip from Udon Thani to Seoul

Regular price: $306 - $738

Prices are currently below the regular range for flights from Udon Thani to Seoul.

The regular price range for flights from Udon Thani to Seoul is $306 to $738. The current lowest deal is $270 with MyTravel Airways for travel from Sep 12-Sep 17.

now $270

Low $306

High $738

The cheapest time to fly from Udon Thani to Seoul

The cheapest month to fly from UTH to SEL 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

MyTravel Airways

Thai Airways International

Sierra National Airlines

Thai AirAsia

Last-minute flights going from Udon Thani to Seoul

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$397

$337

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$347

$337

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$324

$339

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$419

$339

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$324

$341

One-way

Wed, Sep 2

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$357

$335

One-way

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

4 nights

Sep 10 - Sep 14

$380 → $270

29%

2 nights

Sep 12 - Sep 14

$377 → $270

28%

5 nights

Sep 10 - Sep 15

$365 → $271

26%

3 nights

Sep 3 - Sep 6

$415 → $331

20%

Popular Airports to fly from Udon Thani to Seoul

Udon Thani - Seoul route insights

💸 Price insights

Recent fares are below the typical level

Recent fares for Udon Thani to Seoul are below the typical level, with deals around $270.

📅 Best time to fly

August, September, and June offer the lowest median prices

Historically, August ($345), September ($364), and June ($376) have offered the lowest median prices.

⏱️ Flight duration

Connecting flights average 21h 50m

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

✈️ Airlines & availability

Connecting flights are dominant

This route is connecting dominant, with a median of 2 stopovers on connecting flights.

🏆 Airline highlight

MyTravel Airways offers deals from $270

MyTravel Airways has offered recent deals for Udon Thani to Seoul from $270 via kiwi.

🎯 Booking tip

Deals appear regularly

Historically, deals for flights from Udon Thani to Seoul have appeared regularly within 30 days.

Udon Thani main airports to depart from

Udon Thani International (UTH)

Cheapest

Udon Thani International Airport is the cheapest option for flights from Udon Thani to Seoul.

📍 ~5 km from Udon Thani (reachable by car)

💸 Flights from ~$351

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Incheon International Airport is a good choice for flights from Udon Thani to Seoul, often offering the cheapest fares.

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

💸 Flights from ~$351

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Cheongju International is a practical alternative due to its proximity and international status, with good low-cost carrier options.

📍 ~110 km from Seoul (reachable by express bus and rail services)

💸 Flights from ~$408

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

Sep 11

Seoul, South Korea

70% AI deal score

$1,557

Thai Airways International, +1

Business Class

From UTH

Elite

Sep 02

Seoul, South Korea

70% AI deal score

$1,675

Thai Airways International, +1

Business Class

From UTH

Elite

Sep 11

Seoul, South Korea

69% AI deal score

$1,610

Thai Airways International, +1

Business Class

From UTH

Elite

Sep 02

Seoul, South Korea

69% AI deal score

$1,675

Thai Airways International, +1

Business Class

From UTH

Elite

Sep 03

Seoul, South Korea

68% AI deal score

$1,798

Thai Airways International, +1

Business Class

From UTH

Elite

Sep 02

Seoul, South Korea

67% AI deal score

$1,864

Thai Airways International, +1

Business Class

From UTH

Elite

Sep 11

Seoul, South Korea

67% AI deal score

$1,869

Thai Airways International, +1

Business Class

From UTH

Elite

Dec 25

Seoul, South Korea

50% AI deal score

$2,722

Thai Airways International, +1

Business Class

From UTH

Elite

Sep 02

Seoul, South Korea

47% AI deal score

$2,786

Thai Airways International, +1

Business Class

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 also help uncover better deals. Look out for sales or promotions that may be offered by various carriers.

Booking flights in advance often provides more options and potentially lower prices. However, last-minute deals can sometimes appear, so it's wise to monitor prices. The ideal booking time can vary, but generally, several weeks to a few months before departure is a good window.

Yes, comparing nearby airports at both your origin and destination can sometimes lead to more economical flight options. While it may require additional travel time to and from these airports, the savings on airfare can be significant. Always check the total cost including ground transportation.

Related routes

More routes from Udon Thani

Flights from Udon Thani to Bangkok Flights from Udon Thani to Hong Kong Flights from Udon Thani to Osaka Flights from Udon Thani to Tokyo

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Udon Thani to Seoul: Overview

Insights for flights from Udon Thani to Seoul

How much is a round trip from Udon Thani to Seoul

Regular price: $306 - $738

Prices are currently below the regular range for flights from Udon Thani to Seoul.

The regular price range for flights from Udon Thani to Seoul is $306 to $738. The current lowest deal is $270 with MyTravel Airways for travel from Sep 12-Sep 17.

now $270

Low $306

High $738

The cheapest time to fly from Udon Thani to Seoul

The cheapest month to fly from UTH to SEL 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

MyTravel Airways

Thai Airways International

Sierra National Airlines

Thai AirAsia

Last-minute flights going from Udon Thani to Seoul

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$397

$337

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$347

$337

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$324

$339

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$419

$339

One-way

Tue, Sep 1

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$324

$341

One-way

Wed, Sep 2

⌛ Last-Minute

UTH - Seoul

Udon Thani (UTH) - Seoul (ICN)

MyTravel Airways, T'way Air

$357

$335

One-way

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

4 nights

Sep 10 - Sep 14

$380 → $270

29%

2 nights

Sep 12 - Sep 14

$377 → $270

28%

5 nights

Sep 10 - Sep 15

$365 → $271

26%

3 nights

Sep 3 - Sep 6

$415 → $331

20%

Popular Airports to fly from Udon Thani to Seoul

Udon Thani - Seoul route insights

💸 Price insights

Recent fares are below the typical level

Recent fares for Udon Thani to Seoul are below the typical level, with deals around $270.

📅 Best time to fly

August, September, and June offer the lowest median prices

Historically, August ($345), September ($364), and June ($376) have offered the lowest median prices.

⏱️ Flight duration

Connecting flights average 21h 50m

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

✈️ Airlines & availability

Connecting flights are dominant

This route is connecting dominant, with a median of 2 stopovers on connecting flights.

🏆 Airline highlight

MyTravel Airways offers deals from $270

MyTravel Airways has offered recent deals for Udon Thani to Seoul from $270 via kiwi.

🎯 Booking tip

Deals appear regularly

Historically, deals for flights from Udon Thani to Seoul have appeared regularly within 30 days.

Udon Thani main airports to depart from

Udon Thani International (UTH)

Cheapest

Udon Thani International Airport is the cheapest option for flights from Udon Thani to Seoul.

📍 ~5 km from Udon Thani (reachable by car)

💸 Flights from ~$351

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Incheon International Airport is a good choice for flights from Udon Thani to Seoul, often offering the cheapest fares.

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

💸 Flights from ~$351

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Cheongju International is a practical alternative due to its proximity and international status, with good low-cost carrier options.

📍 ~110 km from Seoul (reachable by express bus and rail services)

💸 Flights from ~$408

Seoul, South Korea

47% AI deal score

$2,786

Thai Airways International, +1

Business Class

Frequently Asked Questions About Flights to Seoul

Cheap Flights from Udon Thani to Seoul

Today’s best flight deals from Udon Thani to Seoul

Udon Thani to Seoul: Overview

Insights for flights from Udon Thani to Seoul

How much is a round trip from Udon Thani to Seoul

The cheapest time to fly from Udon Thani to Seoul

Direct flights from Udon Thani to Seoul

Last-minute flights going from Udon Thani to Seoul

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

Popular Airports to fly from Udon Thani to Seoul

Udon Thani - Seoul route insights

Recent fares are below the typical level

August, September, and June offer the lowest median prices

Connecting flights average 21h 50m

Connecting flights are dominant

MyTravel Airways offers deals from $270

Deals appear regularly

Udon Thani main airports to depart from

Seoul main airports to arrive at

Airports nearby Seoul used as alternative

Business & First Class Flight Deals to Seoul

Best Elite deals to Seoul

Sep 11

Sep 02

Sep 11

Sep 02

Sep 03

Sep 02

Sep 11

Dec 25

Sep 02

Frequently Asked Questions About Flights to Seoul

How can I find cheap flights from Udon Thani to Seoul?

When should I book flights from Udon Thani to Seoul?

Should I compare nearby airports for flights from Udon Thani to Seoul?

Are direct flights from Udon Thani to Seoul always the best option?

Can flexible travel dates help on Udon Thani to Seoul flights?

What extra costs should I check before booking Udon Thani to Seoul flights?

Related routes

More routes from Udon Thani

Flights to Seoul from other cities

Udon Thani to Seoul: Overview

Insights for flights from Udon Thani to Seoul

How much is a round trip from Udon Thani to Seoul

The cheapest time to fly from Udon Thani to Seoul

Direct flights from Udon Thani to Seoul

Last-minute flights going from Udon Thani to Seoul

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

Popular Airports to fly from Udon Thani to Seoul

Udon Thani - Seoul route insights

Recent fares are below the typical level

August, September, and June offer the lowest median prices

Connecting flights average 21h 50m

Connecting flights are dominant

MyTravel Airways offers deals from $270

Deals appear regularly

Udon Thani main airports to depart from

Seoul main airports to arrive at

Airports nearby Seoul used as alternative

Business & First Class Flight Deals to Seoul

Best Elite deals to Seoul

Sep 11

Sep 02

Sep 11

Sep 02

Sep 03

Sep 02

Sep 11

Dec 25

Sep 02

Frequently Asked Questions About Flights to Seoul

How can I find cheap flights from Udon Thani to Seoul?

When should I book flights from Udon Thani to Seoul?

Should I compare nearby airports for flights from Udon Thani to Seoul?

Are direct flights from Udon Thani to Seoul always the best option?

Can flexible travel dates help on Udon Thani to Seoul flights?

What extra costs should I check before booking Udon Thani to Seoul flights?

Related routes

More routes from Udon Thani

Flights to Seoul from other cities