$120+ Cheap flights from Seoul (SEL) to Ulaanbaatar (UBN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — UBN
Nov 11 — Nov 181
Round-trip
1 adult, Economy
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Find cheap flights from Seoul to Ulaanbaatar with Cheapflights
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 Seoul to Ulaanbaatar Chinggis Khaan are usually found in March or November, booked 73 days in advance, depart on a Thursday or Sunday and return on a Saturday
Cheap flight deals from Seoul to Ulaanbaatar
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seoul to UlaanbaatarExplore the most affordable flight options available from Seoul to Ulaanbaatar. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
Explore the most affordable flight options available from Seoul to Ulaanbaatar. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
This Justfly.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/7![Hahn Air Systems logo]()
$232
This Justfly.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:30 am -
Nonstop3h 45m
Thu 12/33:15 pm -
Nonstop3h 10m
Deal found 10/7![Hahn Air Systems logo]()
$241
This Justfly.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/8![Hahn Air Systems logo]()
$247
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1011:30 am -
Nonstop3h 45m
Sun 12/133:15 pm -
Nonstop3h 10m
Deal found 10/7![Jeju Air logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/7![Jeju Air logo]()
$256
This Justfly.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
Nonstop3h 45m
Sun 11/293:15 pm -
Nonstop3h 10m
Deal found 10/10![Hahn Air Systems logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
Nonstop3h 45m
Thu 12/33:15 pm -
Nonstop3h 10m
Deal found 10/7![Jeju Air logo]()
$264
This FlightHub deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:30 am -
Nonstop3h 45m
Sun 11/293:15 pm -
Nonstop3h 10m
Deal found 10/11![Jeju Air logo]()
$266
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/9![Jeju Air logo]()
$267
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1011:30 am -
Nonstop3h 45m
Tue 12/153:15 pm -
Nonstop3h 10m
Deal found 10/9![Jeju Air logo]()
$269
Best flights from Seoul to UlaanbaatarDiscover carefully curated flight deals from Seoul to Ulaanbaatar that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
Discover carefully curated flight deals from Seoul to Ulaanbaatar that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1311:30 am -
Nonstop3h 45m
Thu 12/173:15 pm -
Nonstop3h 10m
Deal found 10/7![Jeju Air logo]()
$286
This Aero Mongolia deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aero Mongolia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/75:45 pm -
Nonstop3h 15m
Mon 1/1112:30 pm -
Nonstop3h 05m
Deal found 10/11![Aero Mongolia logo]()
$414
This Jeju Air deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:30 am -
Nonstop3h 45m
Tue 11/243:15 pm -
Nonstop3h 10m
Deal found 10/11![Jeju Air logo]()
$286
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1511:30 am -
Nonstop3h 45m
Thu 12/173:15 pm -
Nonstop3h 10m
Deal found 10/9![Jeju Air logo]()
$293
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:30 am -
Nonstop3h 45m
Sun 12/63:15 pm -
Nonstop3h 10m
Deal found 10/9![Jeju Air logo]()
$293
This Jeju Air deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:30 am -
Nonstop3h 45m
Sun 12/63:15 pm -
Nonstop3h 10m
Deal found 10/11![Jeju Air logo]()
$301
This Aero Mongolia deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aero Mongolia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:45 pm -
Nonstop3h 15m
Mon 11/1612:30 pm -
Nonstop3h 05m
Deal found 10/11![Aero Mongolia logo]()
$422
This Aero Mongolia deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aero Mongolia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:45 pm -
Nonstop3h 15m
Mon 11/3012:30 pm -
Nonstop3h 05m
Deal found 10/8![Aero Mongolia logo]()
$422
This Jeju Air deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/611:30 am -
Nonstop3h 45m
Thu 12/103:15 pm -
Nonstop3h 10m
Deal found 10/8![Jeju Air logo]()
$322
This Jeju Air deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/311:30 am -
Nonstop3h 45m
Thu 1/73:15 pm -
Nonstop3h 10m
Deal found 10/12![Jeju Air logo]()
$342
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:30 am -
Nonstop3h 45m
Thu 12/243:15 pm -
Nonstop3h 10m
Deal found 10/9![Jeju Air logo]()
$351
This Jeju Air deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:30 am -
Nonstop3h 45m
Sun 11/13:15 pm -
Nonstop3h 10m
Deal found 10/12![Jeju Air logo]()
$406
Last-minute flights from Seoul to UlaanbaatarDiscover last-minute flight deals from Seoul to Ulaanbaatar. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to Ulaanbaatar. Data last updated October 12, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/8![Hahn Air Systems logo]()
$247
This Justfly.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:30 am -
Nonstop3h 45m
Sun 11/293:15 pm -
Nonstop3h 10m
Deal found 10/8![Jeju Air logo]()
$274
This FlightHub deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:30 am -
Nonstop3h 45m
Sun 11/293:15 pm -
Nonstop3h 10m
Deal found 10/11![Jeju Air logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/7![Jeju Air logo]()
$256
This Justfly.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
Nonstop3h 45m
Sun 11/293:15 pm -
Nonstop3h 10m
Deal found 10/10![Hahn Air Systems logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
Nonstop3h 45m
Thu 12/33:15 pm -
Nonstop3h 10m
Deal found 10/7![Jeju Air logo]()
$264
This Justfly.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/7![Hahn Air Systems logo]()
$232
This Justfly.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:30 am -
Nonstop3h 45m
Thu 12/33:15 pm -
Nonstop3h 10m
Deal found 10/7![Hahn Air Systems logo]()
$241
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:30 am -
Nonstop3h 45m
Tue 12/13:15 pm -
Nonstop3h 10m
Deal found 10/9![Jeju Air logo]()
$267
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2911:30 am -
Nonstop3h 45m
Thu 12/33:15 pm -
Nonstop3h 10m
Deal found 10/7![Jeju Air logo]()
$270
One-way flights from Seoul to UlaanbaatarSearch for one-way flight options from Seoul to Ulaanbaatar. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
Search for one-way flight options from Seoul to Ulaanbaatar. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This FlightHub deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Hahn Air Systems logo]()
$120
This FlightHub deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Hahn Air Systems logo]()
$135
This FlightHub deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/311:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Hahn Air Systems logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Jeju Air logo]()
$141
This FlightHub deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Hahn Air Systems logo]()
$144
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Jeju Air logo]()
$148
This Jeju Air deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1511:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Jeju Air logo]()
$158
This Justfly.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/511:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Hahn Air Systems logo]()
$163
This Jeju Air deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Jeju Air logo]()
$179
This FlightHub deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2911:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Jeju Air logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:30 am -
Nonstop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Jeju Air logo]()
$188
Find 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 (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 October 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $232 (Justfly.com) |
One-way from | $120 (FlightHub) |
Popular in | August |
Cheapest in | March |
Average price | $343 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seoul to Ulaanbaatar that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 12, 2026.
Use the filters below to find and compare flights from Seoul to Ulaanbaatar that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Tue 11/3
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$144
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Thu 11/19
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$148
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Thu 12/3
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$148
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Sun 11/15
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$159
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Sun 12/20
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$179
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Thu 11/12
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$197
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Thu 10/29
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$197
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Tue 12/22
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$200
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Thu 1/7
11:30 am-2:15 pm
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$200
IncheonUlaanbaatar
ICN Incheon Intl - UBN Ulaanbaatar Chinggis Khaan
ICNUBN
Incheon Intl
Sat 12/5
11:55 pm-2:40 am
Nonstop3h 45m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$218
Showing 1-10 of 23 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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.
SEL-UBN
ICN-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 Seoul to Ulaanbaatar
SEL-UBN
ICN-UBN
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 $248). Flying from Seoul to Ulaanbaatar in August is currently the most expensive (average of $466). 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?
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 October 12, 2026.
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 18% on airfare.
Weekly flight availability from Seoul to Ulaanbaatar
Explore weekly flight availability from Seoul to Ulaanbaatar. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 12, 2026.
The most flights from SEL to UBN are scheduled on a Saturday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Seoul to Ulaanbaatar?
Airfare is below average for this route at the moment.
Seoul to Ulaanbaatar flights typically cost between $270 and $434 in November.The cheapest round-trip price found within the last 5 days was $232 on Hahn Air Systems (Nov 29-Dec 1).
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 day to fly from Seoul to Ulaanbaatar?
Use this chart to determine the cheapest time to fly round-trip from Seoul to Ulaanbaatar. Price data was last updated on October 10, 2026.
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
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 October 12, 2026.
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.
Comfort
8.3
Food
8.1
Overall
8.4
Boarding
8.5
Entertainment
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Food
8.1
Overall
8.4
Boarding
8.5
Entertainment
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Food
8.1
Overall
8.4
Boarding
8.5
Entertainment
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Food
8.1
Overall
8.4
Boarding
8.5
Entertainment
8.2
Crew
8.7
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
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.
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Seoul and Ulaanbaatar flights
Browse other Seoul and Ulaanbaatar flight options. Last updated on October 12, 2026.
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Top 6 airlines flying from Seoul to Ulaanbaatar
Discover the top 6 airlines 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 7,457,451 searches. Data last updated October 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$190 | Average$323 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$220 | Average$555 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$262 | Average$518 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$283 | Average$384 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$399 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$378 | Average$485 | FlexibilityNo cancel fee | On-time81% |