Title: Cheap Flights from Ulaanbaatar (UBN) to Busan (PUS) - Expedia.ca ![](https://images.trvl-media.com/place/602043/70fedfd1-0f5d-4e6d-a5a5-d5b507594f01.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Ulaanbaatar (UBN) to Busan (PUS) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Ulaanbaatar (UBN-Chinggis Khaan Intl.) to Gimhae Airport (PUS) - ![Air China](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_CA.svg) Air China [](https://www.expedia.ca/Flights-Search?leg1=from:ubn,to:pus,departure:20/10/2025TANYT&leg2=from:pus,to:ubn,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CA"}}]) - ![Korean Air](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KE.svg) Korean Air [](https://www.expedia.ca/Flights-Search?leg1=from:ubn,to:pus,departure:20/10/2025TANYT&leg2=from:pus,to:ubn,departure:27/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KE"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Frequently asked questions ### How much is a flight from UBN to Gimhae Airport (PUS)? > If you're travelling between UBN and Busan Airport, round-trip flights start from . This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from UBN to Gimhae Airport (PUS)? > Every air carrier has its own set of terms and conditions. If you decide to cancel your vacation, visit our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from UBN to PUS that have flexible change policies? > Flights from UBN to PUS offering flexible change policies are available with many airlines. Simply use our "No change fees" filter during your search. You'll only need to cover the difference in ticket price, with no extra fees to worry about. ### How far is the flight from UBN to PUS? > It's around 2,300 kilometres between Sergelen and Busan, so you'll be strapped into your seat for a while. Keep yourself entertained by packing things like a magazine or a good old-fashioned book. ### Which airlines fly direct from UBN to Gimhae Airport (PUS)? > There are no direct flights, so you'll need to make at least one stop between UBN and PUS. Use the layover time to stretch your legs and freshen up. ### Are UBN to Busan Airport flight tickets cheaper when they're purchased at the last minute? > Flight prices change all the time, so it's no sure thing. While last-minute deals between UBN and Gimhae Airport (PUS) are possible, it also makes sense to keep track of prices well before you fly. In fact, some airlines announce their prices up to 12 months before the departure date. Expedia is constantly updating the best airfare bargains around, so keep checking and be ready to pounce when the price is right. ## Travel information | Origin airport | Chinggis Khaan Intl. | | --- | --- | | Destination airport | Gimhae | | Distance | 2281 km | | Average flight time | 4 hours 30 mins | ## Book with confidence ### Sergelen to Busan Flights **The easy way to book your flights from Ulaanbaatar to Busan**  With Expedia, it’s simple to find and book flights to Busan from Ulaanbaatar whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are Jin Air nonstop flights to Gimhae, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ulaanbaatar to Busan today, tomorrow, or this week.   **Save dollars with cheap flights from Chinggis Khaan Intl., UBN to Gimhae, PUS**  Sort your search results by price to find great deals on your flight from Ulaanbaatar to Busan—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Busan from Ulaanbaatar currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Busan   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Busan from Ulaanbaatar**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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