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Flights from Seattle to Ulaanbaatar

Find flight deals from Seattle to Ulaanbaatar for the next 3 months. Book one way flights from $709 or round trip flights from $1,267.

      • SEA 7:10 PM
        21h 10m
        1 stop
        UBN 7:20 AM
        Seattle - Ulaanbaatar | Fri, May 29 | Turkish Airlines
        UBN 9:10 AM
        23h 5m
        1 stop
        SEA 5:15 PM
        Ulaanbaatar - Seattle | Fri, Jun 5 | Turkish Airlines
        $1,267 $2,463
        49% off
        49% off
        $2,463 $1,267
      • SEA 12:55 AM
        34h 50m
        1 stop
        UBN 2:45 AM
        Seattle - Ulaanbaatar | Sun, May 31 | Asiana Airlines
        UBN 8:40 AM
        21h 15m
        1 stop
        SEA 2:55 PM
        Ulaanbaatar - Seattle | Fri, Jun 5 | Miat Mongolian Airlines
        $1,477 $2,463
        40% off
        40% off
        $2,463 $1,477
      • SEA 1:05 PM
        36h 55m
        1 stop
        UBN 5:00 PM
        Seattle - Ulaanbaatar | Fri, Jul 10 | Korean Air
        UBN 8:40 AM
        20h 1m
        1 stop
        SEA 1:41 PM
        Ulaanbaatar - Seattle | Wed, Jul 15 | Miat Mongolian Airlines
        $1,615 $2,463
        34% off
        34% off
        $2,463 $1,615
      • SEA 12:55 AM
        20h 45m
        1 stop
        UBN 12:40 PM
        Seattle - Ulaanbaatar | Tue, May 26 | Asiana Airlines
        UBN 1:40 PM
        16h 15m
        1 stop
        SEA 2:55 PM
        Ulaanbaatar - Seattle | Tue, Jun 2 | Jeju Air
        $1,715
        30% off
        $2,463 $1,715
      • SEA 1:00 PM
        22h 45m
        1 stop
        UBN 2:45 AM
        Seattle - Ulaanbaatar | Tue, May 26 | Korean Air
        UBN 8:40 AM
        21h 15m
        1 stop
        SEA 2:55 PM
        Ulaanbaatar - Seattle | Tue, Jun 2 | Miat Mongolian Airlines
        $1,722
        30% off
        $2,463 $1,722
      • SEA 5:40 PM
        20h
        1 stop
        UBN 4:40 AM
        Seattle - Ulaanbaatar | Mon, Jun 8 | Condor Airlines
        UBN 10:10 AM
        20h 30m
        1 stop
        SEA 3:40 PM
        Ulaanbaatar - Seattle | Mon, Jun 15 | Miat Mongolian Airlines
        $1,737
        28% off
        $2,463 $1,737
      • SEA 12:50 PM
        22h 55m
        1 stop
        UBN 2:45 AM
        Seattle - Ulaanbaatar | Sun, May 31 | Korean Air
        UBN 8:40 AM
        17h 20m
        1 stop
        SEA 11:00 AM
        Ulaanbaatar - Seattle | Fri, Jun 5 | Miat Mongolian Airlines
        $1,748
        28% off
        $2,463 $1,748
      • SEA 12:50 PM
        22h 55m
        1 stop
        UBN 2:45 AM
        Seattle - Ulaanbaatar | Mon, Jun 1 | Korean Air
        UBN 8:40 AM
        17h 20m
        1 stop
        SEA 11:00 AM
        Ulaanbaatar - Seattle | Fri, Jun 5 | Miat Mongolian Airlines
        $1,748
        28% off
        $2,463 $1,748
      • SEA 12:50 PM
        37h 10m
        1 stop
        UBN 5:00 PM
        Seattle - Ulaanbaatar | Sat, May 30 | Korean Air
        UBN 8:40 AM
        17h 20m
        1 stop
        SEA 11:00 AM
        Ulaanbaatar - Seattle | Fri, Jun 5 | Miat Mongolian Airlines
        $1,765
        28% off
        $2,463 $1,765
      • SEA 12:55 AM
        31h 10m
        1 stop
        UBN 11:05 PM
        Seattle - Ulaanbaatar | Sat, May 30 | Asiana Airlines
        UBN 12:25 AM
        29h 30m
        1 stop
        SEA 2:55 PM
        Ulaanbaatar - Seattle | Fri, Jun 5 | Asiana Airlines
        $1,773
        28% off
        $2,463 $1,773
      • SEA 1:00 PM
        17h 25m
        1 stop
        ULN 2:00 PM
        Seattle - Ulaanbaatar | Sat, May 23 | Normal Airline
        ULN 3:00 PM
        6h
        Nonstop
        SEA 4:00 PM
        Ulaanbaatar - Seattle | Mon, May 25 | Normal Airline
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      • SEA 2:05 PM
        31h 35m
        1 stop
        UBN 12:40 PM
        Seattle - Ulaanbaatar | Sat, Jul 11 | Alaska Airlines
        $709 $1,578
        55% off
        55% off
        $1,578 $709
      • SEA 1:05 PM
        32h 35m
        1 stop
        UBN 12:40 PM
        Seattle - Ulaanbaatar | Sat, Jul 11 | Delta Air Lines
        $784 $1,578
        50% off
        50% off
        $1,578 $784
      • SEA 1:05 PM
        22h 40m
        1 stop
        UBN 2:45 AM
        Seattle - Ulaanbaatar | Wed, Jul 8 | Delta Air Lines
        $816 $1,578
        48% off
        48% off
        $1,578 $816
      • SEA 1:05 PM
        36h
        1 stop
        UBN 4:05 PM
        Seattle - Ulaanbaatar | Wed, Jul 8 | Korean Air
        $847
        46% off
        $1,578 $847
      • SEA 2:05 PM
        18h
        1 stop
        UBN 11:05 PM
        Seattle - Ulaanbaatar | Mon, Jul 6 | Alaska Airlines
        $848
        46% off
        $1,578 $848
      • SEA 1:20 PM
        36h 40m
        1 stop
        UBN 5:00 PM
        Seattle - Ulaanbaatar | Tue, Jul 7 | Korean Air
        $931
        41% off
        $1,578 $931
      • SEA 1:00 PM
        22h 45m
        1 stop
        UBN 2:45 AM
        Seattle - Ulaanbaatar | Mon, May 25 | Korean Air
        $958
        39% off
        $1,578 $958
      • SEA 1:40 PM
        18h 25m
        1 stop
        UBN 11:05 PM
        Seattle - Ulaanbaatar | Sun, Jun 7 | Alaska Airlines
        $1,073
        32% off
        $1,578 $1,073
      • SEA 2:05 PM
        18h
        1 stop
        UBN 11:05 PM
        Seattle - Ulaanbaatar | Sun, Jun 28 | Alaska Airlines
        $1,120
        28% off
        $1,578 $1,120
      • SEA 12:55 AM
        31h 10m
        1 stop
        UBN 11:05 PM
        Seattle - Ulaanbaatar | Fri, Jun 12 | Asiana Airlines
        $1,136
        28% off
        $1,578 $1,136
      • SEA 1:00 PM
        17h 25m
        1 stop
        ULN 2:00 PM
        Seattle - Ulaanbaatar | Sat, May 23 | Normal Airline
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        Find more flights

Displayed flight fares from Seattle to Ulaanbaatar are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Frequently Asked Questions

  • What are the cheapest flights from Seattle to Ulaanbaatar (SEA-ULN)?

    Based on Trip.com data, Alaska Airlines offers one-way fares as low as $709 on Cheapest nonstop routes (e.g. SEA to UBN on Sat, Jul 11), while Turkish Airlines offers Cheapest nonstop round-trips from $1,267 departing on Fri, May 29 and returning on Fri, Jun 5.
  • At the moment, you can catch a nonstop flight from Seattle to Ulaanbaatar with the following airlines, including: Alaska Airlines Philippine Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Ulaanbaatar is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Seattle to Ulaanbaatar, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Jul 11, with one-way flights priced at just $709.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Ulaanbaatar travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Ulaanbaatar is September, when demand for travel is lower.
  • After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Seattle to Ulaanbaatar on May 21, 2026 with Turkish Airlines, with prices starting at $713.
  • You can land at any one of the following hubs in Ulaanbaatar, with Seattle-Tacoma International Airport to Chinggis Khaan International Airport (SEA-UBN) is by far the most common option on this route: Buyant Ukhaa International Airport (ULN) Chinggis Khaan International Airport (UBN).
  • The time difference between Ulaanbaatar and Seattle is 16h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.