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Cheap flights from Seattle (SEA) to Mongolia

SEA — UBN
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Find flight deals from Seattle to Mongolia

Keep the following information in mind while searching for Seattle to Mongolia flight deals. Data was last updated January 26, 2026.

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FlightHub
3 stars

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FlightHub
3 stars
Provider with most accurate pricing for Seattle/Tacoma Intl-Ulaanbaatar Buyant Ukhaa flight deals.
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Reviews of airlines servicing Mongolia

Get insights into the airlines that provide service to Mongolia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Mongolia. Reviews last updated January 26, 2026.
Peruse reviews from past customers who have flown with Korean Air from Seattle to Mongolia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,188 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Mongolia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Mongolia?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Mongolia. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What are the cheapest airlines to fly from Seattle to Mongolia one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $28. Hawaiian Airlines flights start at $66 while deals on Delta start at $69 one-way.

  • Can I find deals for flights from Seattle to Mongolia that include hotel bookings?

    Yes. In addition to deals on Seattle to Mongolia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Mongolia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Mongolia.

  • Can I find deals for business class flights from Seattle to Mongolia?

    Yes. Cheapflights offers flight deals from Seattle to Mongolia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Seattle to Mongolia

Discover the top airline that operate flights from Seattle to Mongolia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$981Average$1,482FlexibilityNo cancel feeOn-time81%

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