Cheap Flights from Ulaanbaatar (ULN) to Seattle (SEA)

Frequently Asked Questions

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

  Based on Trip.com data, Asiana Airlines offers one-way fares as low as US$571 on Cheapest nonstop routes (e.g. UBN to SEA on Fri, May 22), while Miat Mongolian Airlines offers Cheapest nonstop round-trips from US$1,170 departing on Tue, May 26 and returning on Sun, May 31.

• Which airlines offer direct flights from Ulaanbaatar to Seattle?

  At the moment, you can catch a nonstop flight from Ulaanbaatar to Seattle with the following airlines, including: Korean Air Miat Mongolian Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Ulaanbaatar to Seattle?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Ulaanbaatar to Seattle 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.

• How can I find the best deals on flights from Ulaanbaatar to Seattle?

  To find best deals on flights from Ulaanbaatar to Seattle, 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 Fri, May 22, with one-way flights priced at just US$571.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Asiana 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 Seattle travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Ulaanbaatar (ULN) to Seattle (SEA) the cheapest?

  The cheapest months to fly from Ulaanbaatar to Seattle is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Ulaanbaatar to Seattle on?

  After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Ulaanbaatar to Seattle on May 11, 2026 with Miat Mongolian Airlines, with prices starting at US$1,106.

• Which airports can I fly to for Seattle from Ulaanbaatar?

  You can land at any one of the following hubs in Seattle, with Chinggis Khaan International Airport to Seattle-Tacoma International Airport (UBN-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE) Seattle-Tacoma International Airport (SEA).

• Is there any time difference between Ulaanbaatar and Seattle?

  The time difference between Seattle and Ulaanbaatar is 16h.

• How do I change or cancel my ticket from Ulaanbaatar to Seattle?

  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.