When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport is 1 as of October 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport?

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 Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport.

What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

The travel and health documents you'll need for your trip to Siem Reap–Angkor Intl Airport 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 Siem Reap–Angkor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$315 Cheap Flights from Seattle to Siem Reap in 2026/27

Find the cheapest flights from Seattle to Siem Reap

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:15 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 25m1 stop Singapore Changi

10:30 am - 8:45 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

36h 15m1 stop Singapore Changi

$695Singapore Airlines

Thu, Apr 1 - Wed, May 5

8:40 am - 4:00 pmSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

40h 20m1 stop Singapore Changi

10:45 am - 7:05 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

59h 20m1 stop Singapore Changi

$802Singapore Airlines

Wed, Feb 10 - Sun, Feb 21

8:40 am - 4:00 pmSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

40h 20m1 stop Singapore Changi

10:45 am - 7:05 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

59h 20m1 stop Singapore Changi

$811Singapore Airlines

Wed, Feb 10 - Sun, Feb 21

8:40 am - 9:55 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

34h 15m1 stop Singapore Changi

10:45 am - 7:05 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

59h 20m1 stop Singapore Changi

$818Singapore Airlines

Wed, Feb 10 - Sun, Feb 21

10:15 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 25m1 stop Singapore Changi

10:30 am - 8:45 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

36h 15m1 stop Singapore Changi

$872Singapore Airlines

Thu, Apr 1 - Sat, May 8

10:15 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 25m1 stop Singapore Changi

10:30 am - 9:09 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

36h 39m2 stops Singapore Changi San Francisco

$908Singapore Airlines

Thu, Apr 1 - Wed, May 5

10:15 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 25m1 stop Singapore Changi

10:30 am - 9:09 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

36h 39m2 stops Singapore Changi San Francisco

$977Singapore Airlines

Thu, Apr 1 - Sat, May 8

8:40 am - 9:55 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

34h 15m1 stop Singapore Changi

4:50 pm - 1:38 pmSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

35h 48m2 stops Singapore Changi San Francisco

$1,007Singapore Airlines

Wed, Feb 10 - Sun, Feb 21

10:25 am - 9:15 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

31h 50m2 stops Hong Kong Intl Bangkok Suvarnabhumi

9:55 am - 8:45 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

37h 50m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$1,018Multiple Airlines

Wed, Feb 10 - Sun, Feb 21

10:25 am - 9:15 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

31h 50m2 stops Hong Kong Intl Bangkok Suvarnabhumi

7:25 pm - 8:45 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

28h 20m2 stops Bangkok Suvarnabhumi Hong Kong Intl

$1,049Multiple Airlines

Wed, Feb 10 - Sun, Feb 21

Cheap last minute flights

Enter your travel dates to find the best prices.

1:30 am - 6:55 pmSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

27h 25m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

9:40 am - 7:20 pmSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

23h 40m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

$1,401Multiple Airlines

Fri, Oct 9 - Fri, Oct 16

1:30 am - 6:55 pmSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

27h 25m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

9:40 am - 7:20 pmSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

23h 40m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

$1,402Multiple Airlines

Fri, Oct 9 - Fri, Oct 16

5:15 pm - 12:15 pmSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

29h 00m2 stops Dubai Intl Bangkok Suvarnabhumi

12:55 pm - 1:25 pmSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

38h 30m2 stops Bangkok Suvarnabhumi Dubai Intl

$1,411Emirates

Sat, Oct 10 - Fri, Oct 16

9:55 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 45m1 stop Singapore Changi

4:00 pm - 8:25 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

30h 25m1 stop Singapore Changi

$1,508Singapore Airlines

Sat, Oct 10 - Fri, Oct 16

4:25 pm - 12:15 pmSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

29h 50m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

5:20 pm - 1:00 pmSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

57h 40m3 stops Luang Prabang Hanoi Noibai Doha Hamad Intl

$1,616Multiple Airlines

Sat, Oct 10 - Fri, Oct 16

4:25 pm - 9:00 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

26h 35m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

5:20 pm - 1:00 pmSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

57h 40m3 stops Luang Prabang Hanoi Noibai Doha Hamad Intl

$1,666Multiple Airlines

Sat, Oct 10 - Fri, Oct 16

9:55 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 45m1 stop Singapore Changi

4:00 pm - 8:25 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

30h 25m1 stop Singapore Changi

$1,678Singapore Airlines

Sat, Oct 10 - Fri, Oct 16

9:55 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 45m1 stop Singapore Changi

4:00 pm - 8:25 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

30h 25m1 stop Singapore Changi

$1,679Singapore Airlines

Sat, Oct 10 - Fri, Oct 16

11:41 pm - 9:30 pmSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

55h 49m3 stops Chicago O'Hare Intl Dubai Intl Bangkok Suvarnabhumi

12:55 pm - 1:25 pmSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

38h 30m2 stops Bangkok Suvarnabhumi Dubai Intl

$1,755Emirates

Sat, Oct 10 - Fri, Oct 16

9:55 am - 9:40 amSEA Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl

33h 45m1 stop Singapore Changi

10:30 am - 11:02 amSAI Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl

38h 32m2 stops Singapore Changi Los Angeles

$2,173Singapore Airlines

Sat, Oct 10 - Fri, Oct 16

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Singapore Airlines flights from Seattle to Siem Reap

Our best Singapore Airlines deals on Seattle to Siem Reap flight tickets

Singapore Airlines

Apr 1

SEA10:15 amSeattle/Tacoma Intl

33h 25m

1 stop

SAI9:40 amSiem Reap–Angkor Intl

May 5

SAI10:30 amSiem Reap–Angkor Intl

36h 15m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$695

Singapore Airlines

Feb 10

SEA8:40 amSeattle/Tacoma Intl

40h 20m

1 stop

SAI4:00 pmSiem Reap–Angkor Intl

Feb 21

SAI10:45 amSiem Reap–Angkor Intl

59h 20m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$802

Singapore Airlines

Feb 10

SEA8:40 amSeattle/Tacoma Intl

40h 20m

1 stop

SAI4:00 pmSiem Reap–Angkor Intl

Feb 21

SAI10:45 amSiem Reap–Angkor Intl

59h 20m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$811

Emirates flights from Seattle to Siem Reap

Our best Emirates deals on Seattle to Siem Reap flight tickets

Emirates

Oct 10

SEA5:15 pmSeattle/Tacoma Intl

29h 00m

2 stops

SAI12:15 pmSiem Reap–Angkor Intl

Oct 16

SAI12:55 pmSiem Reap–Angkor Intl

38h 30m

2 stops

SEA1:25 pmSeattle/Tacoma Intl

$1,411

Emirates

Oct 10

SEA11:41 pmSeattle/Tacoma Intl

55h 49m

3 stops

SAI9:30 pmSiem Reap–Angkor Intl

Oct 16

SAI12:55 pmSiem Reap–Angkor Intl

38h 30m

2 stops

SEA1:25 pmSeattle/Tacoma Intl

$1,755

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Thu 4/1

10:15 am-9:40 am

1 stop33h 25m

Siem Reap–Angkor Intl

Wed 5/5

10:30 am-8:45 am

1 stop36h 15m

$695

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Wed 2/10

8:40 am-4:00 pm

1 stop40h 20m

Siem Reap–Angkor Intl

Sun 2/21

10:45 am-7:05 am

1 stop59h 20m

$802

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Wed 2/10

8:40 am-4:00 pm

1 stop40h 20m

Siem Reap–Angkor Intl

Sun 2/21

10:45 am-7:05 am

1 stop59h 20m

$811

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Wed 2/10

8:40 am-9:55 am

1 stop34h 15m

Siem Reap–Angkor Intl

Sun 2/21

10:45 am-7:05 am

1 stop59h 20m

$818

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Thu 4/1

10:15 am-9:40 am

1 stop33h 25m

Siem Reap–Angkor Intl

Sat 5/8

10:30 am-8:45 am

1 stop36h 15m

$872

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Thu 4/1

10:15 am-9:40 am

1 stop33h 25m

Siem Reap–Angkor Intl

Wed 5/5

10:30 am-9:09 am

2 stops36h 39m

$908

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Thu 4/1

10:15 am-9:40 am

1 stop33h 25m

Siem Reap–Angkor Intl

Sat 5/8

10:30 am-9:09 am

2 stops36h 39m

$977

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Wed 2/10

8:40 am-9:55 am

1 stop34h 15m

Siem Reap–Angkor Intl

Sun 2/21

4:50 pm-1:38 pm

2 stops35h 48m

$1,007

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Wed 2/10

10:25 am-9:15 am

2 stops31h 50m

Siem Reap–Angkor Intl

Sun 2/21

9:55 am-8:45 am

2 stops37h 50m

$1,018

Quickest round-trip

SeattleSiem Reap

SEA Seattle/Tacoma Intl - SAI Siem Reap–Angkor Intl

SEASAI

Seattle/Tacoma Intl

Wed 2/10

10:25 am-9:15 am

2 stops31h 50m

Siem Reap–Angkor Intl

Sun 2/21

7:25 pm-8:45 am

2 stops28h 20m

$1,049

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Siem Reap

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

What is the cheapest airline that flies from Seattle/Tacoma Intl to Siem Reap–Angkor Intl?

Singapore Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Siem Reap–Angkor Intl

When to book flights from Seattle to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Siem Reap (SEA to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Siem Reap

Best Price Found	$315
Fastest flight time	26h 05m
Direct flights	None

The best one-way flight to Siem Reap from Seattle in the past 72 hours is $315. The best round-trip flight deal from Seattle to Siem Reap found on momondo in the last 72 hours is $695.

The fastest flight from Seattle to Siem Reap takes 26h 05m

There are no direct flights from Seattle to Siem Reap. There are no popular flight routes from Seattle to Siem Reap.

Search flight deals

Frequently asked questions about flying from Seattle to Siem Reap

How far is Seattle/Tacoma Intl to Siem Reap–Angkor Intl by plane?
A flight from Seattle/Tacoma Intl to Siem Reap–Angkor Intl will travel around 7350.7 mi. In terms of flight time, this usually takes a little over 26h 05m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport is 1 as of October 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport?
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 Seattle/Tacoma Intl Airport to Siem Reap–Angkor Intl Airport.
What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?
The travel and health documents you'll need for your trip to Siem Reap–Angkor Intl Airport 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 Siem Reap–Angkor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Siem Reap?
momondo data reveals that the most frequently booked airline on the route from Seattle to Siem Reap is Singapore Airlines, representing 100% of all bookings.

Best airlines flying from Seattle to Siem Reap

Compare and see reviews for airlines that fly from Seattle to Siem Reap with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $543	Free Cancellation	Rating 8.2 1,621 reviews		Search Singapore Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Siem Reap?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Siem Reap. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Siem Reap with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Siem Reap from Seattle with this policy.

How can momondo help me find flights from Seattle to Siem Reap?

momondo helps you find the best flight between Seattle and Siem Reap by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Seattle to Siem Reap flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Siem Reap 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Tue 11/3

Tue 11/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Cambodia

Airlines

Cabin classes

Other Cambodia destinations

Other flights from Seattle

Complete your trip

Feeling lucky

Fly your favorite airline to Siem Reap

Singapore Airlines

Cheap flights from Seattle to Siem Reap from $315

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Siem Reap departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Seattle to Siem Reap

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Singapore Airlines flights from Seattle to Siem Reap

Our best Singapore Airlines deals on Seattle to Siem Reap flight tickets

Emirates flights from Seattle to Siem Reap

Our best Emirates deals on Seattle to Siem Reap flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Siem Reap that are best for you.

See travel insights to Siem Reap from

How to get the cheapest flight ticket from Seattle to Siem Reap

What is the cheapest airline that flies from Seattle/Tacoma Intl to Siem Reap–Angkor Intl?

When to book flights from Seattle to Siem Reap

Cheap Seattle to Siem Reap (SEA to SAI) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Seattle to Siem Reap

Best airlines flying from Seattle to Siem Reap

Compare and see reviews for airlines that fly from Seattle to Siem Reap with momondo

Why use momondo?

An easier way to manage your Siem Reap 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 Cambodia

Fly your favorite airline to Siem Reap

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

Cabin classes currently available on flights to Siem Reap

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

Popular cities in Cambodia

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

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Siem Reap

Explore popular destinations other users love

According to popular flight searches on momondo this year