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Ulaanbaatar

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

SEL — ULN
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Seoul to Ulaanbaatar

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Ulaanbaatar (ULN). 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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

August

Cheapest in

December

Good round-trip deal

$218 or less

Good one-way deal

$124 or less
Provider with most accurate pricing for Seoul (SEL)-Ulaanbaatar Buyant Ukhaa flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Ulaanbaatar Buyant Ukhaa flights.
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Highest demand for flights based on searches. 8% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($20 potential savings vs. average RT price).
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Price to beat on a round-trip flight from Seoul (SEL) to Ulaanbaatar Buyant Ukhaa.
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Price to beat on a one-way flight from Seoul (SEL) to Ulaanbaatar Buyant Ukhaa.
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Compare providers for flights from Seoul to Ulaanbaatar

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 Seoul to Ulaanbaatar in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 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 Seoul-Ulaanbaatar flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seoul-Ulaanbaatar flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seoul-Ulaanbaatar flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-Ulaanbaatar 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 Seoul-Ulaanbaatar 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 Seoul to Ulaanbaatar

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

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

Currently, September is the cheapest month in which you can book a flight from Seoul to Ulaanbaatar (average of $152). Flying from Seoul to Ulaanbaatar in July is currently the most expensive (average of $295). 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.

What is the cheapest time of day to fly from SEL to ULN?

Find hourly flight availability from Seoul to Ulaanbaatar. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

One of the essential ways to save on airfare from Seoul to Ulaanbaatar is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 26% on airfare.

Related info for your journey

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

    Most people fly into Ulaanbaatar Buyant Ukhaa (ULN) if they book a flight to Ulaanbaatar from Seoul. On average, Buyant Ukhaa has 0 inbound flights from Seoul per day from 1 airline. Ulaanbaatar Buyant Ukhaa is conveniently located just 8.1 mi from Ulaanbaatar’s city center.

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

    Our cheapest airline available from Seoul to Ulaanbaatar is Aero Mongolia. Our recent data shows that you can find tickets from as low as $274 on this airline. Aero Mongolia is 22% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seoul to Ulaanbaatar 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 Seoul to Ulaanbaatar?

    Currently, September is the cheapest month in which you can book a flight from Seoul to Ulaanbaatar (average of $152). Flying from Seoul to Ulaanbaatar in July is currently the most expensive (average of $295). 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 Seoul to Ulaanbaatar

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

Top airline flying from Seoul to Ulaanbaatar

Discover the top airline that operate flights from Seoul to Ulaanbaatar. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aero MongoliaCheapest$274Average$278FlexibilityNo cancel feeOn-timeN/A

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