Cheap Flights from Seattle to Ulaanbaatar from US$604

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 US$604 on Cheapest nonstop routes (e.g. SEA to UBN on Mon, Jul 27), while Korean Air offers Cheapest nonstop round-trips from US$1,498 departing on Tue, Jul 14 and returning on Tue, Jul 21.

• Which airlines offer direct flights from Seattle to Ulaanbaatar?

  At the moment, you can catch a nonstop flight from Seattle to Ulaanbaatar with the following airlines, including: Korean Air 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 Seattle to Ulaanbaatar?

  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.

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

  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 Mon, Jul 27, with one-way flights priced at just US$604.
  · 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.

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

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

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

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Seattle to Ulaanbaatar on June 28, 2026 with Alaska Airlines, with prices starting at US$852.

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

  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: Chinggis Khaan International Airport (UBN) Buyant Ukhaa International Airport (ULN).

• Is there any time difference between Seattle and Ulaanbaatar?

  The time difference between Ulaanbaatar and Seattle is 16h.

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

  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.