What is the cheapest airline that flies from Washington to Mongolia?

Delta is the most popular carrier operating from Washington to Mongolia

When did momondo last update prices for flights from Washington to Mongolia?

Prices for flights from Washington to Mongolia were last updated today.

How many operators does momondo search for flights from Washington to Mongolia?

As of September 2026, there is 1 operator available to choose from for flights from Washington to Mongolia.

How old do you have to be to fly from Washington to Mongolia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Mongolia.

What documentation or ID do you need to fly to Mongolia?

The travel and health documents you'll need for your trip to Mongolia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Mongolia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$546 Cheap Flights from Washington to Mongolia in 2026/27

Find the cheapest flights from Washington to Mongolia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:20 pm - 5:05 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

34h 45m2 stops Los Angeles Hong Kong Intl

6:45 am - 8:45 amUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

18h 00m1 stop Hong Kong Intl

$1,339Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

3:20 pm - 5:05 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

34h 45m2 stops Los Angeles Hong Kong Intl

6:45 am - 2:44 pmUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

23h 59m2 stops Hong Kong Intl Vancouver Intl

$1,339Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

11:25 am - 5:05 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

38h 40m1 stop Hong Kong Intl

6:45 am - 8:45 amUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

18h 00m1 stop Hong Kong Intl

$1,345Cathay Pacific

Wed, Oct 28 - Wed, Nov 4

7:08 pm - 11:10 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

37h 02m2 stops Los Angeles Hong Kong Intl

12:55 pm - 10:05 amUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

36h 10m1 stop Hong Kong Intl

$1,356Cathay Pacific

Mon, Oct 12 - Wed, Oct 21

9:56 am - 5:05 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

40h 09m2 stops Vancouver Intl Hong Kong Intl

12:25 am - 1:55 pmUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

28h 30m1 stop Incheon Intl

$1,375Multiple Airlines

Mon, Oct 26 - Sat, Oct 31

2:19 pm - 11:10 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

41h 51m2 stops Los Angeles Hong Kong Intl

12:55 pm - 7:08 amUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

33h 13m2 stops Hong Kong Intl Vancouver Intl

$1,384Multiple Airlines

Mon, Oct 12 - Wed, Oct 21

2:19 pm - 11:10 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

41h 51m2 stops Los Angeles Hong Kong Intl

6:20 am - 10:05 amUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

18h 45m1 stop Hong Kong Intl

$1,384Cathay Pacific

Mon, Oct 12 - Thu, Oct 22

11:25 am - 5:05 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

38h 40m1 stop Hong Kong Intl

12:25 am - 1:55 pmUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

28h 30m1 stop Incheon Intl

$1,386Multiple Airlines

Mon, Oct 26 - Sat, Oct 31

9:56 am - 5:05 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

40h 09m2 stops Vancouver Intl Hong Kong Intl

4:10 pm - 9:32 amUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

33h 22m3 stops Beijing Capital Shenzhen Vancouver Intl

$1,404Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

2:19 pm - 11:10 pmSEA Seattle/Tacoma Intl-UBN Ulaanbaatar Chinggis Khaan

41h 51m2 stops Los Angeles Hong Kong Intl

6:20 am - 4:04 pmUBN Ulaanbaatar Chinggis Khaan-SEA Seattle/Tacoma Intl

24h 44m2 stops Hong Kong Intl San Francisco

$1,439Cathay Pacific

Mon, Oct 12 - Thu, Oct 22

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Cathay Pacific flights from State of Washington to Mongolia

Our best Cathay Pacific deals on State of Washington to Mongolia flight tickets

Cathay Pacific

Oct 28

SEA11:25 amSeattle/Tacoma Intl

38h 40m

1 stop

UBN5:05 pmUlaanbaatar Chinggis Khaan

Nov 4

UBN6:45 amUlaanbaatar Chinggis Khaan

18h 00m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$1,345

Cathay Pacific

Oct 12

SEA7:08 pmSeattle/Tacoma Intl

37h 02m

2 stops

UBN11:10 pmUlaanbaatar Chinggis Khaan

Oct 21

UBN12:55 pmUlaanbaatar Chinggis Khaan

36h 10m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$1,356

Cathay Pacific

Oct 12

SEA2:19 pmSeattle/Tacoma Intl

41h 51m

2 stops

UBN11:10 pmUlaanbaatar Chinggis Khaan

Oct 22

UBN6:20 amUlaanbaatar Chinggis Khaan

18h 45m

1 stop

SEA10:05 amSeattle/Tacoma Intl

$1,384

Delta flights from State of Washington to Mongolia

Our best Delta deals on State of Washington to Mongolia flight tickets

Delta

Nov 19

SEA12:30 pmSeattle/Tacoma Intl

29h 55m

1 stop

UBN10:25 amUlaanbaatar Chinggis Khaan

Nov 30

UBN12:25 pmUlaanbaatar Chinggis Khaan

36h 40m

1 stop

SEA9:05 amSeattle/Tacoma Intl

$1,540

Delta

Nov 20

SEA11:00 amSeattle/Tacoma Intl

31h 25m

1 stop

UBN10:25 amUlaanbaatar Chinggis Khaan

Nov 30

UBN12:25 pmUlaanbaatar Chinggis Khaan

36h 40m

1 stop

SEA9:05 amSeattle/Tacoma Intl

$1,565

Delta

Nov 19

SEA12:30 pmSeattle/Tacoma Intl

29h 55m

1 stop

UBN10:25 amUlaanbaatar Chinggis Khaan

Nov 29

UBN12:25 pmUlaanbaatar Chinggis Khaan

15h 26m

1 stop

SEA11:51 amSeattle/Tacoma Intl

$2,030

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Mongolia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Wed 10/28

3:20 pm-5:05 pm

2 stops34h 45m

Ulaanbaatar Chinggis Khaan

Wed 11/4

6:45 am-8:45 am

1 stop18h 00m

$1,339

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Wed 10/28

3:20 pm-5:05 pm

2 stops34h 45m

Ulaanbaatar Chinggis Khaan

Wed 11/4

6:45 am-2:44 pm

2 stops23h 59m

$1,339

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Wed 10/28

11:25 am-5:05 pm

1 stop38h 40m

Ulaanbaatar Chinggis Khaan

Wed 11/4

6:45 am-8:45 am

1 stop18h 00m

$1,345

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Mon 10/12

7:08 pm-11:10 pm

2 stops37h 02m

Ulaanbaatar Chinggis Khaan

Wed 10/21

12:55 pm-10:05 am

1 stop36h 10m

$1,356

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Mon 10/26

9:56 am-5:05 pm

2 stops40h 09m

Ulaanbaatar Chinggis Khaan

Sat 10/31

12:25 am-1:55 pm

1 stop28h 30m

$1,375

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Mon 10/12

2:19 pm-11:10 pm

2 stops41h 51m

Ulaanbaatar Chinggis Khaan

Wed 10/21

12:55 pm-7:08 am

2 stops33h 13m

$1,384

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Mon 10/12

2:19 pm-11:10 pm

2 stops41h 51m

Ulaanbaatar Chinggis Khaan

Thu 10/22

6:20 am-10:05 am

1 stop18h 45m

$1,384

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Mon 10/26

11:25 am-5:05 pm

1 stop38h 40m

Ulaanbaatar Chinggis Khaan

Sat 10/31

12:25 am-1:55 pm

1 stop28h 30m

$1,386

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Wed 10/28

9:56 am-5:05 pm

2 stops40h 09m

Ulaanbaatar Chinggis Khaan

Wed 11/4

4:10 pm-9:32 am

3 stops33h 22m

$1,404

SeattleUlaanbaatar

SEA Seattle/Tacoma Intl - UBN Ulaanbaatar Chinggis Khaan

SEAUBN

Seattle/Tacoma Intl

Mon 10/12

2:19 pm-11:10 pm

2 stops41h 51m

Ulaanbaatar Chinggis Khaan

Thu 10/22

6:20 am-4:04 pm

2 stops24h 44m

$1,439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Mongolia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on State of Washington to Mongolia flights?

You could potentially save up to 27% on your flight if you consider stops on a State of Washington to Mongolia flight.

Cheap State of Washington to Mongolia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Mongolia

Best Price Found	$546
Fastest flight time	28h 05m
Direct flights	None

The best one-way flight to Mongolia from State of Washington in the past 72 hours is $546. The best round-trip flight deal from State of Washington to Mongolia found on momondo in the last 72 hours is $1,339.

The fastest flight from State of Washington to Mongolia takes 28h 05m

There are no direct flights from State of Washington to Mongolia. There are no popular flight routes from State of Washington to Mongolia.

Search flight deals

Frequently asked questions about flying from Washington to Mongolia

When did momondo last update prices for flights from Washington to Mongolia?
Prices for flights from Washington to Mongolia were last updated today.
How many operators does momondo search for flights from Washington to Mongolia?
As of September 2026, there is 1 operator available to choose from for flights from Washington to Mongolia.
How old do you have to be to fly from Washington to Mongolia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Mongolia.
What documentation or ID do you need to fly to Mongolia?
The travel and health documents you'll need for your trip to Mongolia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Mongolia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Mongolia

Compare and see reviews for airlines that fly from State of Washington to Mongolia with momondo

Airline	Rating	Free Cancellation	Price
Asiana Airlines	PriceFrom $1,372	Free Cancellation	Rating 8.1 562 reviews		Search Asiana Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Mongolia?

Finding the right flight to Mongolia from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Mongolia quick and easy, saving you time and money.

Can I find flights from Washington to Mongolia with flexible booking policies on momondo?

All flight searches from Washington to Mongolia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Mongolia?

Once you have performed a search for Washington to Mongolia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington to Mongolia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington to Mongolia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Mongolia and let you know when they change.

An easier way to manage your Mongolia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Mongolia

Flights to Ulaanbaatarfrom $1,035

Flights to Mörön, Hovsgol

Cheap flights from Washington to Mongolia from $546

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Mongolia departing on 11/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Cathay Pacific flights from State of Washington to Mongolia

Our best Cathay Pacific deals on State of Washington to Mongolia flight tickets

Delta flights from State of Washington to Mongolia

Our best Delta deals on State of Washington to Mongolia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Mongolia that are best for you.

See travel insights to Mongolia from

How to get the cheapest flight ticket from State of Washington to Mongolia

Can stopping save me money on State of Washington to Mongolia flights?

What is the cheapest airline that flies from Washington to Mongolia?

Cheap State of Washington to Mongolia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington to Mongolia

Best airlines flying from State of Washington to Mongolia

Compare and see reviews for airlines that fly from State of Washington to Mongolia with momondo

Why use momondo?

An easier way to manage your Mongolia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Mongolia

Popular cities in Mongolia

Popular flights according to clicks in the last 7 days on momondo

State of Washington flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Mongolia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Mongolia

List of cabin classes available on flights landing in Mongolia. Availability may vary depending on flight origin and airline.

Complete your trip to Mongolia

Explore popular destinations other users love

According to popular flight searches on momondo this year