SEA - UBN

$706 Find Cheap Flights from Seattle to Ulaanbaatar - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,120
Typical prices: $992-$1,584
Korean Air
Sat 3/17Wed 3/28
SEA - UBN • 1 stop
Cheapest one-way
$759
Typical prices: $660-$922
Multiple Airlines
Tue 11/20
SEA - UBN • 3 stops
Nonstop flights
There are currently no direct flights between Seattle and Ulaanbaatar. You'll need to take a connecting flight to reach the destination.
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When to travel
Cheapest • 25% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $967 (round-trip)
Shortest trip • 19h 21m (one-way)
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Cheap Flights from Seattle to Ulaanbaatar (SEA-UBN)

 

Cheap flights from Seattle to Ulaanbaatar with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Wed, Mar 17 - Sun, Mar 28
Korean Air Logo
12:10 am - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
19h 15m1 stop Incheon Intl
Korean Air Logo
1:00 pm - 10:40 amUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
36h 40m1 stop Incheon Intl
$1,120Korean Air
Thu, Mar 18 - Sun, Mar 28
Korean Air Logo
12:00 pm - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
31h 25m2 stops Las Vegas Harry Reid Intl Incheon Intl
Korean Air Logo
1:00 pm - 10:40 amUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
36h 40m1 stop Incheon Intl
$1,160Korean Air
Sun, Jan 24 - Mon, Feb 8
Delta Logo
11:00 am - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
31h 25m1 stop Incheon Intl
Delta Logo
12:25 pm - 8:31 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
24h 06m2 stops Incheon Intl Los Angeles
$1,331Delta
Sun, Jan 24 - Mon, Feb 8
Delta Logo
7:20 am - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
35h 05m2 stops San Francisco Incheon Intl
Delta Logo
12:25 pm - 8:31 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
24h 06m2 stops Incheon Intl Los Angeles
$1,336Delta
Mon, Nov 16 - Tue, Jan 19
Delta Logo
11:00 am - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
31h 25m1 stop Incheon Intl
Delta Logo
12:25 pm - 8:31 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
24h 06m2 stops Incheon Intl Los Angeles
$1,364Delta
Tue, Nov 10 - Tue, Jan 19
Delta Logo
11:00 am - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
31h 25m1 stop Incheon Intl
Delta Logo
12:25 pm - 8:31 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
24h 06m2 stops Incheon Intl Los Angeles
$1,364Delta
Thu, Oct 29 - Wed, Dec 9
Multiple Airlines Logo
11:50 pm - 5:40 pmSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
26h 50m2 stops Taipei City Taiwan Taoyuan Intl Hong Kong Intl
Multiple Airlines Logo
12:25 am - 12:55 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
28h 30m1 stop Incheon Intl
$1,368Multiple Airlines
Mon, Nov 16 - Tue, Jan 19
Delta Logo
12:31 pm - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
29h 54m2 stops Los Angeles Incheon Intl
Delta Logo
12:25 pm - 8:31 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
24h 06m2 stops Incheon Intl Los Angeles
$1,369Delta
Tue, Nov 10 - Tue, Jan 19
Delta Logo
7:20 am - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
35h 05m2 stops San Francisco Incheon Intl
Delta Logo
12:25 pm - 8:31 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
24h 06m2 stops Incheon Intl Los Angeles
$1,369Delta
Thu, Oct 29 - Thu, Dec 10
Delta Logo
9:45 am - 10:25 amSEA  Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan
33h 40m2 stops Los Angeles Incheon Intl
Delta Logo
12:25 pm - 8:19 pmUBN  Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl
23h 54m2 stops Incheon Intl Los Angeles
$1,406Delta

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 with more confidence.

How much is a round-trip flight from Seattle to Ulaanbaatar?

Round-trip flights from Seattle to Ulaanbaatar typically range from $992 to $1,584. The lowest price found in the past 5 days was $1,120, on Korean Air.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Seattle to Ulaanbaatar. It’s 22% cheaper than the average day, while Monday is the most expensive, with prices 33% higher.

Key details for Seattle to Ulaanbaatar flights

Low season

December

Cheapest flight

$759
Beat the crowds with an average 91% drop in travelers.
The most popular month to fly with an average 170% increase in travelers.
One-way flight from Seattle to Ulaanbaatar

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 answers about this route, including flight times, airports, airlines and booking tips.

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

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

  • How long is a flight from Seattle to Ulaanbaatar?

    A nonstop flight from Seattle to Ulaanbaatar takes 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 should I expect to pay for a Seattle to Ulaanbaatar flight?

    Round-trip flights from Seattle to Ulaanbaatar range from $992 to $1,584, with an average of $1,265 over the past 12 months. Anything below $992 counts as a good deal.

  • Have flight prices from Seattle to Ulaanbaatar changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,120 to $2,803. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Seattle to Ulaanbaatar looking right now?

    One-way fares from Seattle to Ulaanbaatar are currently higher than usual. Average one-way flight prices are about $861, which is 16% above the typical average for this route.

  • 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).

  • 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) - 48% of one-stop connections
    • Frankfurt am Main (FRA) - 36% of one-stop connections
    • Istanbul (IST) - 12% of one-stop connections
    • Hong Kong Intl (HKG) - 2% of one-stop connections

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

    Yes. Flexible dates can save you up to 42% on flights from Seattle to Ulaanbaatar. Thursday is the cheapest departure day at $992 round-trip on average, while Monday is the most expensive at $1,689, a difference of $697.

    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 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.

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 are flexible, aim for a Thursday departure and avoid flying on Monday. On this route, Thursday flights average $992, about $697 less than Monday fares (41% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Ulaanbaatar trip for August. Fares historically average $949 round-trip in that month - typically $2,430 less than the most expensive month, which is April (based on the last 12 months).

More options for your flight from Seattle to Ulaanbaatar

Complete your trip to Ulaanbaatar with a hotel stay or car rental