The cheapest times to fly from ULN to SDF are

  • February 5th to April 29th
  • October 15th to December 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ULN to SDF is mid April. Prices can be as high as $8658 for Sunday flights during late July, or as low as $959 for Thursday flights around mid April.


When to Fly to Louisville

Flying from Ulan Bator (ULN) to Louisville, KY (SDF) will usually cost between $959 to $4923 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid April with an average ticket price of $1226. Due to high demand the most expensive time to fly is late July, with an average price of $3200. Planning your trip to low-cost times can easily save you $1974 on economy flights and even more on first-class flights. Generally, any price below $1383 can be considered a good price for a round-trip ULN to SDF flight.

See below for a graph of average weekly prices for the ULN to SDF route. All prices are for round-trip tickets in USD.

ULN to SDF Flight Prices

Compared to other flights, the ULN to SDF flight is slightly more expensive than the average and costs less than the average flight leaving from Ulaanbaatar. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Thursday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly to Louisville, and Fridays are the most expensive days to return to Ulaanbaatar. Selecting flights on the least expensive days could save you up to $1783 (54%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Thursday and returning a week later will cost an average of $1199. Return trip prices are from the SDF to ULN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ULN to SDF can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 35 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from ULN to SDF while comparing.

Destination alternative #1: Indianapolis International Airport (IND) in Indianapolis, IN

  • 111 miles (179 km) away from SDF
  • Usually 3.54% less expensive than SDF
  • 2-layover flights available

See ULN to IND flights

Destination alternative #2: Evansville Regional Airport (EVV) in Evansville, IN

  • 98 miles (158 km) away from SDF
  • Usually 3.51% less expensive than SDF
  • 2-layover flights available

See ULN to EVV flights


Flight Hacking ULN to SDF

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ULN to SDF — but Champion Traveler does!

Hack #1: Beijing (ULN > PEK > SDF)

  • Price for both tickets: $1248
  • Average savings: $135 (9.76%)

See ULN to MHT flights

Hack #2: Manchester, NH (ULN > MHT > SDF)

  • Price for both tickets: $1341
  • Average savings: $42 (3.04%)

See ULN to PEK flights

Hack #3: Allentown/Bethlehem/Easton, PA (ULN > ABE > SDF)

  • Price for both tickets: $1345
  • Average savings: $38 (2.75%)

See ULN to ABE flights


Flight Questions Answered

Still have questions about flying from ULN to SDF? We’ve got answers.

Which airlines fly this route?

You can find 8 major airlines flying this route most often: Aeroflot, American, ANA, Asiana, Delta, Korean Air, MIAT, United, and potentially more during busy seasons.

How far away is it from Louisville International-Standiford Field Airport to Chinggis Khaan International Airport?

The distance between the two airports is roughly 6443 miles or 10369 kilometers.

How long does it take to fly from ULN to SDF?

The real-world flight time for a nonstop ULN to SDF flight is about 12 hour 35 minutes.

How many flights go between Ulan Bator and Louisville, KY?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from ULN to SDF.


Airport Location Info


Departing Airport

Origination codeULN
Origination airport nameChinggis Khaan International Airport
CityUlan Bator

Return Airport

Destination codeSDF
Destination airport nameLouisville International-Standiford Field Airport
CityLouisville, KY
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.