Cheap Flights from Seattle-Tacoma International Airport (SEA) to Ulaanbaatar (ULN) 2026 ✈ from US$530 | Trip.com

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Seattle-Tacoma International Airport to Ulaanbaatar flight

Cheap Flights from Seattle-Tacoma International Airport to Ulaanbaatar

Search for flights from Seattle-Tacoma International Airport to Ulaanbaatar. Find affordable one-way or round-trip flights.

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Trip.com Price Insights: Flights from Seattle-Tacoma International Airport to Ulaanbaatar

Which month offers the lowest one-way fares from Seattle-Tacoma International Airport to Ulaanbaatar?

Based on Trip.com data from the past 12 months, the lowest-priced month for one-way flights from Seattle-Tacoma International Airport to Ulaanbaatar is September, with an average fare of US$558. The most expensive month is usually May, with average fares reaching US$997.

US$997

US$778

US$558

US$339

Cheapest

US$785

Aug
US$558

Sep
US$767

Oct
US$663

Nov
US$905

Dec
US$613

Jan
US$626

Feb
US$670

Mar
US$669

Apr
US$997

May
US$954

Jun
US$735

Jul

Which day of the week offers the cheapest flights from Seattle-Tacoma International Airport to Ulaanbaatar?

Based on Trip.com data from the past 12 months, the cheapest day to depart from Seattle-Tacoma International Airport to Ulaanbaatar is Wednesday, when average fares are usually lower than other days. Avoid departing on Friday, as fares are typically the highest.

US$1,007

US$806

US$604

US$403

Cheapest

US$733

Mon
US$899

Tue
US$604

Wed
US$701

Thu
US$1,007

Fri
US$866

Sat
US$674

Sun

Flight Schedule from Seattle-Tacoma International Airport to Ulaanbaatar

Check on the flight schedule from Seattle-Tacoma International Airport to Ulaanbaatar. Find the flight that matches your travel plan.

Flight info.

Departure

Arrival

Weekly Schedule

Alaska Airlines

AS119

Seattle-Tacoma International Airport

12:40

SEA

11h 55m

Nonstop

17:35

ICN

S M T W T F S

Search

KE2045

Incheon International Airport

20:20

ICN

3h 30m

Nonstop

22:50

UBN

- - - W - - S

Alaska Airlines

AS119

Seattle-Tacoma International Airport

12:40

SEA

11h 55m

Nonstop

17:35

ICN

S M T W T F S

Search

Asiana Airlines

OZ567

Incheon International Airport

20:20

ICN

3h 45m

Nonstop

23:05

UBN

S M T - - F -

United Airlines

UA2831

Seattle-Tacoma International Airport

09:05

SEA

2h 19m

Nonstop

11:24

SFO

S M T W T F S

Search

United Airlines

UA2831

San Francisco International Airport

14:25

SFO

4h 5m

Nonstop

20:30

IAH

S M T W T F S

United Airlines

UA007

George Bush Intercontinental Airport

10:40

IAH

13h 20m

Nonstop

14:00

NRT

S M T W T F S

United Airlines

UA007

Narita International Airport

16:30

NRT

5h 25m

Nonstop

20:55

UBN

- M - W - - S

Turkish Airlines

TK204

Seattle-Tacoma International Airport

19:10

SEA

11h 55m

Nonstop

17:05

IST

S M T W T F S

Search

Turkish Airlines

TK236

Istanbul Airport

18:25

IST

7h 55m

Nonstop

07:20

UBN

S - T - T F -

BR025

Seattle-Tacoma International Airport

02:10

SEA

11h 55m

Nonstop

05:05

TPE

S M T W T F S

Search

BR170

Taiwan Taoyuan International Airport

07:30

TPE

2h 30m

Nonstop

11:00

ICN

S M T W T F S

Miat Mongolian Airlines

OM302

Incheon International Airport

14:20

ICN

3h 40m

Nonstop

17:00

UBN

S M T W T F S

CI021

Seattle-Tacoma International Airport

01:15

SEA

12h 45m

Nonstop

05:00

TPE

S M T W T F S

Search

CI160

Taiwan Taoyuan International Airport

07:55

TPE

2h 35m

Nonstop

11:30

ICN

S M T W T F S

Miat Mongolian Airlines

OM302

Incheon International Airport

14:20

ICN

3h 40m

Nonstop

17:00

UBN

S M T W T F S

Delta Air Lines

DL3698

Seattle-Tacoma International Airport

19:35

SEA

1h 9m

Nonstop

20:44

YVR

S M T W T F S

Search

KE076

Vancouver International Airport

00:55

YVR

11h 30m

Nonstop

04:25

ICN

S M T W T F S

KE2041

Incheon International Airport

08:35

ICN

3h 35m

Nonstop

11:10

UBN

S M T W T F S

BR025

Seattle-Tacoma International Airport

02:10

SEA

11h 55m

Nonstop

05:05

TPE

S M T W T F S

Search

BR851

Taiwan Taoyuan International Airport

08:10

TPE

2h

Nonstop

10:10

HKG

S M T W T F S

Miat Mongolian Airlines

OM298

Hong Kong International Airport

12:05

HKG

4h 40m

Nonstop

16:45

UBN

S M T W T - S

BR025

Seattle-Tacoma International Airport

02:10

SEA

11h 55m

Nonstop

05:05

TPE

S M T W T F S

Search

BR891

Taiwan Taoyuan International Airport

07:00

TPE

1h 50m

Nonstop

08:50

HKG

S M T W T F S

Miat Mongolian Airlines

OM298

Hong Kong International Airport

12:05

HKG

4h 40m

Nonstop

16:45

UBN

S M T W T - S

Delta Air Lines

DL2854

Seattle-Tacoma International Airport

19:55

SEA

2h 50m

Nonstop

22:45

LAX

S M T W T F S

Search

KE012

Los Angeles International Airport

23:50

LAX

12h 50m

Nonstop

04:40

ICN

S M T W T F S

KE2041

Incheon International Airport

08:35

ICN

3h 35m

Nonstop

11:10

UBN

S M T W T F S

Find more flights and airlines

Flight Info of Flights from Seattle-Tacoma International Airport to Ulaanbaatar

Cheapest one-way flight price	US$530
Cheapest month	September
Peak season for travel	July

FAQs for Seattle-Tacoma International Airport to Ulaanbaatar Flights

How many airports in Ulaanbaatar (ULN)?

There are 2 airport(s) in Ulaanbaatar (ULN): Chinggis Khaan International Airport and Buyant Ukhaa International Airport.
What is the transportation method from the main airport to downtown in Ulaanbaatar?
- The distance from Chinggis Khaan International Airport to downtown is about 26 km, by taxi about 40 minutes.

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

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Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.