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Ulaanbaatar

Cheap flights from San Francisco (SFO) to Ulaanbaatar (UBN)

SFO — UBN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Ulaanbaatar Chinggis Khaan are usually found in November or September, booked 54 days in advance, depart on a Saturday or Sunday and return on a Monday

Find flight deals from San Francisco to Ulaanbaatar

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 December 18, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Popular in

December

Cheapest in

November

Average price

$1,976
Provider with most accurate pricing for San Francisco-Ulaanbaatar Chinggis Khaan flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Ulaanbaatar Chinggis Khaan flights.
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Highest demand for flights based on searches. 6% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($65 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Compare providers for flights from San Francisco 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 San Francisco to Ulaanbaatar in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice 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 San Francisco-Ulaanbaatar flights, users find the pricing of Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on San Francisco-Ulaanbaatar flight deals on Cheapflights vs. Gotogate >95% of the time. Price accuracy is based on data collected from San Francisco-Ulaanbaatar flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Ulaanbaatar flights, Cheapflights users trust Gotogate the most. Gotogate 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 San Francisco-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 San Francisco to Ulaanbaatar

Have a flexible travel schedule? Discover the best time to fly to Ulaanbaatar from San Francisco with our price prediction graph.
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 San Francisco to Ulaanbaatar

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Ulaanbaatar. Price data was last updated on December 12, 2025.

The best time to book flights from San Francisco to Ulaanbaatar is 30 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest time of day to fly from SFO to UBN?

Find hourly flight availability from San Francisco 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 December 18, 2025.

One of the essential ways to save on airfare from San Francisco to Ulaanbaatar is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 35% on airfare.

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 December 18, 2025.
See what other customers who have flown with Korean Air, Asiana Airlines, and United Airlines from San Francisco to Ulaanbaatar have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,186 reviews

Boarding

8.5

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,186 reviews
Korean Air
8.4
Very good
1,186 reviews

Boarding

8.5

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
493 reviews
Korean Air
8.4
Very good
1,186 reviews

Boarding

8.5

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
9,093 reviews
Korean Air
8.4
Very good
1,186 reviews

Boarding

8.5

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Ulaanbaatar. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Currently priced at $767, Asiana Airlines will fly you from San Francisco to Ulaanbaatar and back. In addition to Asiana Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Korean Air and United Airlines - these airlines can fly you to your destination from $870 and $939, respectively. Asiana Airlines is priced at 42% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Asiana Airlines. According to our data, you can fly for as low as $446. Users have also found prices from $479 and $531 on Korean Air and United Airlines, respectively.

  • Can I find deals for flights from San Francisco to Ulaanbaatar that include hotel bookings?

    Yes. In addition to deals on San Francisco to Ulaanbaatar flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Ulaanbaatar?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Ulaanbaatar.

  • Can I find deals for business class flights from San Francisco to Ulaanbaatar?

    Yes. Cheapflights offers flight deals from San Francisco 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.

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Top 4 airlines flying from San Francisco to Ulaanbaatar

Discover the top 4 airlines that operate flights from San Francisco 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$767Average$1,387FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$870Average$954FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$939Average$1,380FlexibilityNo cancel feeOn-time69%
MIAT MongolianCheapest$1,198Average$1,350FlexibilityNo cancel feeOn-time63%

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