Cheap flights from Busan (PUS) to Ulaanbaatar (UBN)
PUS — UBN
Mar 8 — Mar 151
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Busan Gimhae to Ulaanbaatar Chinggis Khaan are usually found in May or June, booked 16 days in advance, depart on a Thursday or Tuesday and return on a Thursday
Find flight deals from Busan to Ulaanbaatar
Discover tips and strategies to find the most affordable flight options for your journey from Busan (PUS) to Ulaanbaatar (UBN). 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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Popular in | December |
Cheapest in | May |
Average price | $338 |
- Most accurate provider: When it comes to deals on Busan-Ulaanbaatar flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Busan-Ulaanbaatar flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Busan-Ulaanbaatar flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Busan-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 Busan-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 Busan to Ulaanbaatar
Have a flexible travel schedule? Discover the best time to fly to Ulaanbaatar from Busan with our price prediction graph.
PUS-UBN
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 Busan to Ulaanbaatar
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Delays
How far ahead should I book a flight from Busan to Ulaanbaatar?
Use this chart to determine the optimal time to book a round-trip flight from Busan to Ulaanbaatar. Price data was last updated on February 6, 2026.
The price you pay for your flight from Busan to Ulaanbaatar may vary depending on when you book. For the best chance of a lower fare, look to book 13 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
How often are flights from Busan to Ulaanbaatar delayed?
About 11% of weekly flights between Busan and Ulaanbaatar have experienced delays in the past year, with the average delay time being 89 minutes.
What is the most punctual flight time for Busan to Ulaanbaatar flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Busan to Ulaanbaatar flights?
Over the last year, Air Busan have had the lowest number of delays on this route, with just 4% of flights being delayed.
Reviews of airlines servicing Ulaanbaatar
Get insights into the airlines that provide service to Ulaanbaatar. 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 Ulaanbaatar. Reviews last updated February 6, 2026.
Read reviews from past customers who have flown Jeju Air from Busan 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.
Related info for your journey
Find useful and relevant information for your journey from Busan to Ulaanbaatar. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Busan and Ulaanbaatar flights
Browse other Busan and Ulaanbaatar flight options. Last updated on February 6, 2026.
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Top 2 airlines flying from Busan to Ulaanbaatar
Discover the top 2 airlines that operate flights from Busan 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 February 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$141 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$352 | FlexibilityNo cancel fee | On-time63% |