Cheap flights from Seattle to Siem Reap from $731

Round-trip
1 adult
Economy
0 bags
From?
To?
Tue 10/4
Tue 10/11

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Flight information for Seattle to Siem Reap
(SEA to REP)

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

Best Price Found

$731

Fastest flight time

40h 00m

Direct flights

None

Airports in Siem Reap

1 airport
The best one-way flight to Siem Reap from Seattle in the past 72 hours is $731. The best round-trip flight deal from Seattle to Siem Reap found on momondo in the last 72 hours is $1,209.
The fastest flight from Seattle to Siem Reap takes 40h 00m
There are no direct flights from Seattle to Siem Reap. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Siem Reap Airport.
There is 1 airport near Siem Reap: Siem Reap (REP)

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 month to fly from Seattle to Siem Reap?

March. The cheapest time of year to fly to Siem Reap from Seattle is March. Most expensive is July

What is the cheapest day to depart Seattle for Siem Reap?

Friday. The cheapest day of the week is typically Friday. The most expensive is typically Wednesday

When is the cheapest time to fly from Seattle to Siem Reap?

in the morning. Seattle to Siem Reap flights are approximately 57% more expensive at noon than in the morning

What is the cheapest airline that flies to Siem Reap from Seattle?

China Eastern. Cathay Pacific, China Eastern, and Singapore Airlines are the most popular carriers operating from Seattle to Siem Reap

What is the cheapest Seattle to Siem Reap flight route?

Seattle/Tacoma Intl - Siem Reap. Fly from Seattle/Tacoma Intl to Siem Reap for the best Seattle - Siem Reap flight prices

If you are looking to fly from Seattle to Siem Reap, you are most likely going to fly from Seattle/Tacoma Intl Airport to Siem Reap Airport, the most popular airports on that route. In September, $1,091 is typically the cheapest round trip price you’ll find from Seattle to Siem Reap which you can find when you fly SEA — REP.

Seattle/Tacoma Intl Airport (SEA) to Siem Reap Airport (REP)$1,091
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Easily compare round-trip flights from Seattle to Siem Reap

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Siem Reap by changing tabs
Multiple Airlines
Feb 15
SEA3:15 pmSeattle/Tacoma Intl
52h 30m
3 stops
REP7:45 pmSiem Reap
Mar 1
REP5:40 amSiem Reap
52h 16m
3 stops
SEA9:56 amSeattle/Tacoma Intl
Singapore Airlines
Oct 26
SEA2:30 pmSeattle/Tacoma Intl
54h 35m
3 stops
REP9:05 pmSiem Reap
Nov 2
REP6:40 amSiem Reap
41h 37m
2 stops
SEA12:17 amSeattle/Tacoma Intl
Multiple Airlines
Feb 15
SEA3:15 pmSeattle/Tacoma Intl
52h 30m
3 stops
REP7:45 pmSiem Reap
Mar 1
REP5:40 amSiem Reap
37h 20m
2 stops
SEA7:00 pmSeattle/Tacoma Intl
Singapore Airlines
Oct 26
SEA2:30 pmSeattle/Tacoma Intl
54h 35m
3 stops
REP9:05 pmSiem Reap
Nov 2
REP6:40 amSiem Reap
60h 23m
3 stops
SEA7:03 pmSeattle/Tacoma Intl
Multiple Airlines
Feb 15
SEA3:15 pmSeattle/Tacoma Intl
52h 30m
3 stops
REP7:45 pmSiem Reap
Mar 1
REP5:40 amSiem Reap
35h 35m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Singapore Airlines
Oct 26
SEA2:30 pmSeattle/Tacoma Intl
54h 35m
3 stops
REP9:05 pmSiem Reap
Nov 2
REP6:40 amSiem Reap
35h 35m
1 stop
SEA6:15 pmSeattle/Tacoma Intl

Find the cheapest one-way flights from Seattle to Siem Reap

Multiple Airlines
Oct 7
SEA9:05 amSeattle/Tacoma Intl
55h 55m
3 stops
REP5:00 pmSiem Reap
Multiple Airlines
Oct 6
SEA9:30 pmSeattle/Tacoma Intl
22h 50m
2 stops
REP8:20 pmSiem Reap
Multiple Airlines
Oct 7
SEA10:00 amSeattle/Tacoma Intl
35h 00m
2 stops
REP9:00 pmSiem Reap

Best airlines flying from Seattle to Siem Reap

Compare and see reviews for airlines that fly from Seattle to Siem Reap with momondo
AirlineRatingFree CancellationPrice
Singapore AirlinesPriceFrom $510Free CancellationRating
8.0
7.8

Boarding

7.8

Comfort

8.2

Crew

7.8

Entertainment

7.4

Food

Reviews

If they had fruits as snacks that would have been nice

1 / 10
Search Singapore Airlines flights
China EasternPriceFrom $661Free CancellationRating
7.5
7.9

Boarding

7.4

Comfort

8.2

Crew

6.9

Entertainment

6.9

Food

Reviews

Pros: Standard flight

Cons: My connecting flights were terrible. I was kept at the airport on a layover to another city and they wouldn't let me board because they said my passport number was entered wrong on the reservation. This made no sense as I had gotten off another flight on my way back home. No one at the airport in Shanghai was helpful and it was really frustrating to think that I would be stuck in China. I was finally able to track down a international supervisor who was able to print out my boarding passes and let me board my flight. Unfortunately, another family with small kids were dealing with the same issue as me only their flight was leaving in 30 mins. I hope they were able to make their flight.

1 / 7
Search China Eastern flights
Cathay PacificPriceFrom $802Free CancellationRating
8.2
8.3

Boarding

8.1

Comfort

8.5

Crew

8.3

Entertainment

7.9

Food

Reviews

Hospitality

1 / 10
Search Cathay Pacific flights

Singapore Airlines flights from Seattle to Siem Reap

Our best Singapore Airlines deals on Seattle to Siem Reap flight tickets
Singapore Airlines
Oct 26
SEA2:30 pmSeattle/Tacoma Intl
54h 35m
3 stops
REP9:05 pmSiem Reap
Nov 2
REP6:40 amSiem Reap
41h 37m
2 stops
SEA12:17 amSeattle/Tacoma Intl
Singapore Airlines
Oct 26
SEA2:30 pmSeattle/Tacoma Intl
54h 35m
3 stops
REP9:05 pmSiem Reap
Nov 2
REP6:40 amSiem Reap
60h 23m
3 stops
SEA7:03 pmSeattle/Tacoma Intl
Singapore Airlines
Oct 26
SEA2:30 pmSeattle/Tacoma Intl
54h 35m
3 stops
REP9:05 pmSiem Reap
Nov 2
REP6:40 amSiem Reap
35h 35m
1 stop
SEA6:15 pmSeattle/Tacoma Intl

  • Are airlines flying from Seattle/Tacoma Intl to Siem Reap offering flexible cancellation due to COVID-19?

    Due to the global impact of COVID-19, some of our airline partners operating flights from Seattle/Tacoma Intl to Siem Reap, such as Singapore Airlines, Cathay Pacific, and China Eastern may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.

  • How far is Seattle/Tacoma Intl to Siem Reap by plane?

    There are 7350.7 mi between Seattle/Tacoma Intl and Siem Reap. Flights usually cover this in 22h 50m, depending on flying conditions and air traffic around both airports.



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Why use momondo?

It is quick and easy to find Seattle to Siem Reap flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Siem Reap that suits you.

Flights from Seattle to Siem Reap with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

Once all potential Seattle to Siem Reap flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

Yes momondo offers price alerts on flights to Siem Reap from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.