$659+ Cheap flights from Ulaanbaatar (UBN) to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
UBN — SEA
Oct 4 — Oct 111
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ulaanbaatar to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ulaanbaatar to SeattleExplore the most affordable flight options available from Ulaanbaatar to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
Explore the most affordable flight options available from Ulaanbaatar to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
This flugladen.de deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 am -
1 stop28h 15m
Mon 9/141:35 pm -
1 stop19h 55m
Deal found 8/30![Multiple Airlines logo]()
$1,073
This Expedia deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1812:15 pm -
2 stops45h 15m
Sun 1/1012:10 am -
2 stops34h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,399
Best flights from Ulaanbaatar to SeattleDiscover carefully curated flight deals from Ulaanbaatar to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
Discover carefully curated flight deals from Ulaanbaatar to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
This Expedia deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1812:15 pm -
2 stops45h 15m
Sun 1/1012:10 am -
2 stops34h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,399
Last-minute flights from Ulaanbaatar to SeattleDiscover last-minute flight deals from Ulaanbaatar to Seattle. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Ulaanbaatar to Seattle. Data last updated September 4, 2026 and is based on user searches.
This flugladen.de deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 am -
1 stop28h 15m
Mon 9/141:35 pm -
1 stop19h 55m
Deal found 8/30![Multiple Airlines logo]()
$1,073
One-way flights from Ulaanbaatar to SeattleSearch for one-way flight options from Ulaanbaatar to Seattle. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
Search for one-way flight options from Ulaanbaatar to Seattle. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:00 pm -
2 stops59h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$659
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:30 pm -
3 stops41h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$701
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:55 am -
2 stops28h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$822
Find flight deals from Ulaanbaatar to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Ulaanbaatar (UBN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,399 (Expedia) |
One-way from | $659 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Ulaanbaatar to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 4, 2026.
Use the filters below to find and compare flights from Ulaanbaatar to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
UlaanbaatarSeattle
UBN Ulaanbaatar Chinggis Khaan - SEA Seattle/Tacoma Intl
UBNSEA
Ulaanbaatar Chinggis Khaan
Thu 10/15
1:00 pm-9:00 am
2 stops59h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$659
UlaanbaatarSeattle
UBN Ulaanbaatar Chinggis Khaan - SEA Seattle/Tacoma Intl
UBNSEA
Ulaanbaatar Chinggis Khaan
Mon 9/28
4:30 pm-6:36 pm
3 stops41h 06m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$701
Quickest round-trip
UlaanbaatarSeattle
UBN Ulaanbaatar Chinggis Khaan - SEA Seattle/Tacoma Intl
UBNSEA
Ulaanbaatar Chinggis Khaan
Mon 9/28
9:55 am-11:26 pm
2 stops28h 31m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$822
UlaanbaatarSeattle
UBN Ulaanbaatar Chinggis Khaan - SEA Seattle/Tacoma Intl
UBNSEA
Ulaanbaatar Chinggis Khaan
Fri 12/18
12:15 pm-5:30 pm
2 stops45h 15m
Seattle/Tacoma Intl
Sun 1/10
12:10 am-2:20 am
2 stops34h 10m
$1,399
Sorted by cheapest first
Compare providers for flights from Ulaanbaatar to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ulaanbaatar to Seattle in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ulaanbaatar-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ulaanbaatar-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ulaanbaatar-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ulaanbaatar-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ulaanbaatar-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ulaanbaatar to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Ulaanbaatar with our price prediction graph.
UBN-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ulaanbaatar to Seattle
What’s the top layover airport for flights from Ulaanbaatar to Seattle?
Share of 1-stop round-trip flights from Ulaanbaatar to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Incheon (ICN) – chosen by Cheapflights users on 67% of 1-stop itineraries from Ulaanbaatar to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Ulaanbaatar to Seattle?
Average round-trip fare for 1-stop flights from Ulaanbaatar to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Incheon (ICN) is the most affordable 1-stop option, with an average round-trip price of $1,202.
What’s the fastest layover option from Ulaanbaatar to Seattle?
Shortest average travel time for 1-stop one-way flights from Ulaanbaatar to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Incheon (ICN) have the shortest average one-way travel time for 1-stop routes: 15h 33m.
Which airport typically offers the quickest layover for flights from Ulaanbaatar to Seattle?
Average layover duration for 1-stop one-way flights from Ulaanbaatar to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Istanbul (IST) offer the fastest connection on this route, with an average layover time of 1h 15m.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated September 4, 2026.
Read reviews from past customers who have flown Korean Air and Asiana Airlines from Ulaanbaatar to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.3
Food
8.1
Boarding
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Food
8.1
Boarding
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Comfort
8.3
Food
8.1
Boarding
8.5
Crew
8.7
Entertainment
8.2
Overall
8.4
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Related info for your journey
Find useful and relevant information for your journey from Ulaanbaatar to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
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Ulaanbaatar and Seattle flights
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Top 2 airlines flying from Ulaanbaatar to Seattle
Discover the top 2 airlines that operate flights from Ulaanbaatar to Seattle. 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 7,457,451 searches. Data last updated September 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,065 | Average$1,224 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$1,124 | Average$1,353 | FlexibilityNo cancel fee | On-time81% |