SEA - UBN

Find cheap flights from Seattle to Ulaanbaatar - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Seattle and Ulaanbaatar. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
December
Cheapest • 17% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $966 (round-trip)
Hong Kong Intl (HKG)
Shortest trip • 19h 21m (one-way)
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Insights
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Booking Insights
Flight Deals

Cheap Flights from Seattle to Ulaanbaatar (SEA-UBN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Ulaanbaatar

Multiple Airlines Logo
SEA  Seattle/Tacoma Airport-UBN Ulaanbaatar Chinggis Khaan
5229 mimulti-stop
Multiple Airlines Logo
UBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Airport
5229 mimulti-stop
Multiple Airlines
Booking Insights

Price, demand and travel trends for Seattle to Ulaanbaatar flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Ulaanbaatar with more confidence.

What's the cheapest day of the week to fly from Seattle to Ulaanbaatar?

Thursday is the cheapest day of the week to fly from Seattle to Ulaanbaatar, it is 23% cheaper than the average day. Monday is the most expensive day with flight prices 31% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Seattle to Ulaanbaatar?

  • December is the cheapest month to fly from Seattle to Ulaanbaatar at $1,067 round-trip.
  • April ($3,379) and January ($1,589) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 216% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Seattle to Ulaanbaatar flights

Low season

October
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 7% increase in price.

When to book flights from Seattle to Ulaanbaatar

Are your dates flexible? Find out the best times to travel from Seattle to Ulaanbaatar based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Ulaanbaatar flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Seattle to Ulaanbaatar?

    Flights from Seattle to Ulaanbaatar usually depart from Seattle/Tacoma Intl (SEA) and arrive at Ulaanbaatar Chinggis Khaan (UBN).

  • What cabin classes can I book on flights from Seattle to Ulaanbaatar?

    Only Economy Class is available on flights from Seattle to Ulaanbaatar.

  • Which airports do connecting flights from Seattle to Ulaanbaatar pass through?

    One-stop flights from Seattle to Ulaanbaatar most commonly connect through:

    • Incheon Intl (ICN) - 54% of one-stop connections
    • Frankfurt am Main (FRA) - 33% of one-stop connections
    • Istanbul (IST) - 10% of one-stop connections
    • Hong Kong Intl (HKG) - 2% of one-stop connections

    Incheon Intl (ICN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Ulaanbaatar?

    Yes. Being flexible with your travel dates can save you up to 42% on the Seattle to Ulaanbaatar route. Thursday is the cheapest departure day at $993 round-trip on average, while Monday is the most expensive at $1,689, a difference of $696. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Seattle to Ulaanbaatar?

    A nonstop flight from Seattle to Ulaanbaatar takes 0h 00m, covering 5,229 miles.

  • Do I need a passport to fly from Seattle to Ulaanbaatar?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much time can I save by choosing a different layover airport from Seattle to Ulaanbaatar?

    Flying via Hong Kong Intl (HKG) gives the shortest average 1-stop total travel time at 19h 21m, compared with 19h 42m via Tokyo Narita (NRT) and 20h 29m via Frankfurt am Main (FRA).

  • What is the time difference between Seattle and Ulaanbaatar?

    Ulaanbaatar is 15 hours ahead of Seattle (Ulaanbaatar Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • How much should I expect to pay for a Seattle to Ulaanbaatar flight?

    Round-trip flights from Seattle to Ulaanbaatar range from $1,010 to $1,585, with an average of $1,283 over the past 12 months. Anything below $1,010 counts as a good deal.

Your guide to booking Seattle to Ulaanbaatar flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Monday. On this route, Thursday flights average $993 - about $696 less than Monday (41% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Ulaanbaatar trip for December. Fares historically average $1,067 round-trip in that month - typically $2,312 less than the most expensive month, which is April (based on the last 12 months).

Everything you need to know for your flight from Seattle to Ulaanbaatar

Information on your arrival and departure airports

Seattle (SEA)
Ulaanbaatar (UBN)