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Cheap flights from Ulaanbaatar (ULN) to Seoul (SEL)

ULN — SEL
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Find flight deals from Ulaanbaatar to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Ulaanbaatar (ULN) 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Good round-trip deal

$321 or less

Good one-way deal

$169 or less
Provider with most accurate pricing for Ulaanbaatar Buyant Ukhaa-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Ulaanbaatar Buyant Ukhaa-Seoul (SEL) flights.
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Price to beat on a round-trip flight from Ulaanbaatar Buyant Ukhaa to Seoul (SEL).
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Price to beat on a one-way flight from Ulaanbaatar Buyant Ukhaa to Seoul (SEL).
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  • Most accurate provider: When it comes to deals on Ulaanbaatar-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ulaanbaatar-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ulaanbaatar-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ulaanbaatar-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 Ulaanbaatar-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 Ulaanbaatar to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Ulaanbaatar 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 Ulaanbaatar to Seoul

What is the cheapest month to book a flight from Ulaanbaatar to Seoul?

Currently, April is the cheapest month in which you can book a flight from Ulaanbaatar to Seoul (average of $195). Flying from Ulaanbaatar to Seoul in July is currently the most expensive (average of $291). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 February 12, 2026.
Read reviews from past customers who have flown Korean Air from Ulaanbaatar 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.
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,191 reviews
Korean Air
8.4
Very good
1,191 reviews

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Ulaanbaatar 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 Ulaanbaatar to Seoul?

    Ulaanbaatar Buyant Ukhaa (ULN) is the airport you will fly out of if you book a flight from Ulaanbaatar to Seoul. You should not have trouble finding flights to Seoul from Buyant Ukhaa; 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 2 airlines have flights from the Ulaanbaatar airport to Seoul. It is only a 8.1 mi journey to Buyant Ukhaa (ULN) from Ulaanbaatar’s city center.

  • What are the cheapest airlines flying from Ulaanbaatar to Seoul round-trip?

    Aero Mongolia, at $283, was found to be the cheapest airline from Ulaanbaatar to Seoul. An alternate airline flying to your destination would be Korean Air.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ulaanbaatar 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.

  • What is the cheapest month to book a flight from Ulaanbaatar to Seoul?

    Currently, April is the cheapest month in which you can book a flight from Ulaanbaatar to Seoul (average of $195). Flying from Ulaanbaatar to Seoul in July is currently the most expensive (average of $291). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Ulaanbaatar to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Ulaanbaatar to Incheon Intl flights

Top 2 airlines flying from Ulaanbaatar to Seoul

Discover the top 2 airlines that operate flights from Ulaanbaatar 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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aero MongoliaCheapest$283Average$337FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$315Average$343FlexibilityNo cancel feeOn-time81%

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