UBN - SFO

Find cheap flights from Ulaanbaatar to San Francisco - Compare and Save

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ulaanbaatar to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ulaanbaatar to San Francisco, as well as popular online travel agencies
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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Ulaanbaatar and San Francisco. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $1,102 (round-trip)
Shortest trip • 15h 55m (one-way)
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When to travel
Cheapest • 20% price drop
Most popular
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ulaanbaatar to San Francisco (UBN-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ulaanbaatar to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ulaanbaatar to San Francisco

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UBN
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SFO
5808 mimulti-stop
Multiple Airlines Logo
SFO
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UBN
5808 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ulaanbaatar to San Francisco flights

Get data-powered insights and trends into flights from Ulaanbaatar to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ulaanbaatar to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ulaanbaatar to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ulaanbaatar to San Francisco is November, where tickets cost $1,015 (return) on average. On the other hand, the most expensive months are April and August, where the average cost of round-trip tickets is $1,547 and $1,519 respectively.

Good to know

Low seasonApril
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly with an average 6% increase in price.

When to book flights from Ulaanbaatar to San Francisco

Are your dates flexible? Find out the best times to travel from Ulaanbaatar to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ulaanbaatar to San Francisco

  • Do I need a passport to fly between Ulaanbaatar and San Francisco?

    A passport is required to fly from Ulaanbaatar to San Francisco.

  • Which aircraft models fly most regularly from Ulaanbaatar to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ulaanbaatar to San Francisco?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Ulaanbaatar and San Francisco, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Ulaanbaatar to San Francisco, Korean Air or Asiana Airlines?

    The two airlines most popular with KAYAK users for flights from Ulaanbaatar to San Francisco are Korean Air and Asiana Airlines. With an average price for the route of $1,203 and an overall rating of 8.4, Korean Air is the most popular choice. Asiana Airlines is also a great choice for the route, with an average price of $1,342 and an overall rating of 8.1.

  • How does KAYAK find such low prices on flights from Ulaanbaatar to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ulaanbaatar to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ulaanbaatar to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Ulaanbaatar is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ulaanbaatar to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Ulaanbaatar with another airline. Booking your flights between Ulaanbaatar and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ulaanbaatar to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Ulaanbaatar up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ulaanbaatar to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Ulaanbaatar to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ulaanbaatar to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1218 reviews
8.5Boarding
8.3Comfort
8.2Entertainment
8.7Crew
8.1Food
Airline reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

10.0 ExcellentFiruz, Apr 2026
ICN - LAX
Read more Korean Air reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Kayak uses scammer sites to steal money from their victims.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

Everything you need to know for your flight from Ulaanbaatar to San Francisco

Information on your arrival and departure airports