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Cheap flights from Seattle to Siem Reap from $315

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
8:40 am - 9:55 amSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
34h 15m1 stop Singapore Changi
Singapore Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$584Singapore Airlines
Fri, Jan 15 - Sat, Jan 23
Singapore Airlines Logo
8:40 am - 4:00 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
40h 20m1 stop Singapore Changi
Singapore Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$589Singapore Airlines
Fri, Jan 15 - Sat, Jan 23
Singapore Airlines Logo
8:40 am - 4:00 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
40h 20m1 stop Singapore Changi
Singapore Airlines Logo
10:45 am - 8:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$734Singapore Airlines
Sat, Mar 6 - Thu, Mar 18
Singapore Airlines Logo
8:40 am - 4:00 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
40h 20m1 stop Singapore Changi
Singapore Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$851Singapore Airlines
Wed, Feb 3 - Sat, Feb 13
Singapore Airlines Logo
9:40 am - 4:00 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
40h 20m1 stop Singapore Changi
Singapore Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$898Singapore Airlines
Sun, Oct 25 - Tue, Nov 24
Singapore Airlines Logo
8:40 am - 4:00 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
64h 20m1 stop Singapore Changi
Singapore Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$919Singapore Airlines
Fri, Jan 15 - Sat, Jan 23
Singapore Airlines Logo
4:39 pm - 4:00 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
32h 21m2 stops Los Angeles Los Angeles Singapore Changi
Singapore Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$960Singapore Airlines
Fri, Jan 15 - Sat, Jan 23
Singapore Airlines Logo
2:24 pm - 9:55 amSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
28h 31m2 stops Los Angeles Los Angeles Singapore Changi
Singapore Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$960Singapore Airlines
Fri, Jan 15 - Sat, Jan 23
Multiple Airlines Logo
4:39 pm - 4:00 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
32h 21m2 stops Los Angeles Los Angeles Singapore Changi
Multiple Airlines Logo
10:45 am - 7:05 amSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
35h 20m1 stop Singapore Changi
$1,011Multiple Airlines
Fri, Jan 15 - Sat, Jan 23
Multiple Airlines Logo
3:40 pm - 6:30 pmSEA  Seattle/Tacoma Intl-SAI Siem Reap–Angkor Intl
35h 50m2 stops Tokyo Haneda Bangkok Suvarnabhumi
Multiple Airlines Logo
6:40 pm - 1:20 pmSAI  Siem Reap–Angkor Intl-SEA Seattle/Tacoma Intl
33h 40m2 stops Ho Chi Minh City Tokyo Haneda
$1,043Multiple Airlines
Sun, Nov 15 - Sun, Dec 6

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Singapore Airlines flights from Seattle to Siem Reap

Our best Singapore Airlines deals on Seattle to Siem Reap flight tickets
Singapore Airlines
Jan 15
SEA8:40 amSeattle/Tacoma Intl
34h 15m
1 stop
SAI9:55 amSiem Reap–Angkor Intl
Jan 23
SAI10:45 amSiem Reap–Angkor Intl
35h 20m
1 stop
SEA7:05 amSeattle/Tacoma Intl
$584
Singapore Airlines
Jan 15
SEA8:40 amSeattle/Tacoma Intl
40h 20m
1 stop
SAI4:00 pmSiem Reap–Angkor Intl
Jan 23
SAI10:45 amSiem Reap–Angkor Intl
35h 20m
1 stop
SEA7:05 amSeattle/Tacoma Intl
$589
Singapore Airlines
Mar 6
SEA8:40 amSeattle/Tacoma Intl
40h 20m
1 stop
SAI4:00 pmSiem Reap–Angkor Intl
Mar 18
SAI10:45 amSiem Reap–Angkor Intl
35h 20m
1 stop
SEA8:05 amSeattle/Tacoma Intl
$734

momondo Fare Finder

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

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Price

Cheapest round-trip

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Fri 1/15

8:40 am-9:55 am

1 stop34h 15m

Siem Reap–Angkor Intl

Sat 1/23

10:45 am-7:05 am

1 stop35h 20m

$584

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Fri 1/15

8:40 am-4:00 pm

1 stop40h 20m

Siem Reap–Angkor Intl

Sat 1/23

10:45 am-7:05 am

1 stop35h 20m

$589

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Sat 3/6

8:40 am-4:00 pm

1 stop40h 20m

Siem Reap–Angkor Intl

Thu 3/18

10:45 am-8:05 am

1 stop35h 20m

$734

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Wed 2/3

8:40 am-4:00 pm

1 stop40h 20m

Siem Reap–Angkor Intl

Sat 2/13

10:45 am-7:05 am

1 stop35h 20m

$851

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Sun 10/25

9:40 am-4:00 pm

1 stop40h 20m

Siem Reap–Angkor Intl

Tue 11/24

10:45 am-7:05 am

1 stop35h 20m

$898

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Fri 1/15

8:40 am-4:00 pm

1 stop64h 20m

Siem Reap–Angkor Intl

Sat 1/23

10:45 am-7:05 am

1 stop35h 20m

$919

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Fri 1/15

4:39 pm-4:00 pm

2 stops32h 21m

Siem Reap–Angkor Intl

Sat 1/23

10:45 am-7:05 am

1 stop35h 20m

$960
Quickest round-trip

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Fri 1/15

2:24 pm-9:55 am

2 stops28h 31m

Siem Reap–Angkor Intl

Sat 1/23

10:45 am-7:05 am

1 stop35h 20m

$960

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Fri 1/15

4:39 pm-4:00 pm

2 stops32h 21m

Siem Reap–Angkor Intl

Sat 1/23

10:45 am-7:05 am

1 stop35h 20m

$1,011

SeattleSiem Reap

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

SEASAI

Seattle/Tacoma Intl

Sun 11/15

3:40 pm-6:30 pm

2 stops35h 50m

Siem Reap–Angkor Intl

Sun 12/6

6:40 pm-1:20 pm

2 stops33h 40m

$1,043

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Siem Reap from

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

27h 20m

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 $584.
The fastest flight from Seattle to Siem Reap takes 27h 20m
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 27h 20m.

  • 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?

  • 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?

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 AirlinesPriceFrom $543Free CancellationRating
8.2
1,606 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.

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