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Ulaanbaatar

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

SEL — UBN
Sep 28 — Oct 51
Mon 9/28
Mon 10/5
1 adult, Economy
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Cheapflights Tip: The best prices from Seoul to Ulaanbaatar Chinggis Khaan are usually found in March or November, booked 58 days in advance, depart on a Thursday or Sunday and return on a Saturday

Find flight deals from Seoul to Ulaanbaatar

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

October

Cheapest in

March

Average price

$459
Provider with most accurate pricing for Seoul (SEL)-Ulaanbaatar Chinggis Khaan flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Ulaanbaatar Chinggis Khaan flights.
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Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Compare providers for flights from Seoul to Ulaanbaatar

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Ulaanbaatar in August.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Ulaanbaatar flight deals on Cheapflights vs. FlightHub >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 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 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

Cheapflights Insights

Everything you need to know about your flight from Seoul to Ulaanbaatar

How far ahead should I book a flight from Seoul to Ulaanbaatar?

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Ulaanbaatar. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Seoul to Ulaanbaatar (average of $245). Flying from Seoul to Ulaanbaatar in October is currently the most expensive (average of $528). 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 UBN?

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 evening tend to be the most expensive. A flight in the morning could potentially save you up to 20% on airfare.

What is the cheapest day to fly from Seoul to Ulaanbaatar?

Travelers seeking maximum savings on their Seoul to Ulaanbaatar flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ulaanbaatar

Read reviews from past customers who have flown Korean Air,Asiana Airlines, andJeju Air from Seoul to Ulaanbaatar. 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
1,221 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.1
Very good
558 reviews
Korean Air
8.4
Very good
1,221 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Jeju Air
7.6
Good
38 reviews
Korean Air
8.4
Very good
1,221 reviews

Entertainment

8.2

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

  • What airport do you fly into for flights to Ulaanbaatar from Seoul?

    Most people fly into Ulaanbaatar Chinggis Khaan (UBN) if they book a flight to Ulaanbaatar from Seoul. On average, Chinggis Khaan has 12 inbound flights from Seoul per day from 6 airlines. Ulaanbaatar Chinggis Khaan is conveniently located just 18.6 mi from Ulaanbaatar’s city center.

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

    Our cheapest airline available from Seoul to Ulaanbaatar is Jeju Air. Our recent data shows that you can find tickets from as low as $190 on this airline. Additional options worth looking into are Asiana Airlines and T'way Air, starting at $217 and $262 round-trip. Jeju Air is 48% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seoul to Ulaanbaatar one-way?

    To fly one-way, consider booking your trip with Jeju Air, which is currently one of the cheapest options available, starting at $95. Air China flights start at $106 while deals on T'way Air start at $115 one-way.

  • What are the most reliable airlines from Seoul to Ulaanbaatar?

    Before booking your flight to Ulaanbaatar from Seoul, check out the most reliable airlines to get you to your destination on time: MIAT Mongolian (94%), Korean Air (93%), T'way Air( 91%).

  • 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, March is the cheapest month in which you can book a flight from Seoul to Ulaanbaatar (average of $245). Flying from Seoul to Ulaanbaatar in October is currently the most expensive (average of $528). 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.

See more FAQs

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Top 6 airlines flying from Seoul to Ulaanbaatar

AirlineCheapestAverageFlexibilityOn-time
Jeju AirCheapest$190Average$321FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$217Average$517FlexibilityNo cancel feeOn-time76%
T'way AirCheapest$262Average$512FlexibilityNo cancel feeOn-time88%
Aero MongoliaCheapest$283Average$385FlexibilityNo cancel feeOn-timeN/A
MIAT MongolianCheapest$296Average$388FlexibilityNo cancel feeOn-time63%
Korean AirCheapest$378Average$485FlexibilityNo cancel feeOn-time81%

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