$455 Find Cheap Flights from Los Angeles to Siem Reap - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Los Angeles to Siem Reap departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Los Angeles to Siem Reap Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles to Siem Reap that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Los Angeles to Siem Reap

Sun, Aug 16 - Wed, Aug 26
China Eastern Logo
12:30 pm - 8:10 pm
LAX
-
SAI
65h 40m
3 stops
China Eastern Logo
9:10 pm - 10:05 am
SAI
-
LAX
26h 55m
2 stops
$705China Eastern
Sun, Aug 16 - Wed, Aug 26
China Eastern Logo
12:30 pm - 8:10 pm
LAX
-
SAI
65h 40m
3 stops
China Eastern Logo
9:10 pm - 10:05 am
SAI
-
LAX
26h 55m
2 stops
$706China Eastern
Mon, Sep 14 - Fri, Oct 23
China Eastern Logo
12:30 pm - 8:10 pm
LAX
-
SAI
41h 40m
3 stops
China Eastern Logo
9:10 pm - 10:05 am
SAI
-
LAX
26h 55m
2 stops
$768China Eastern
Sun, Sep 13 - Fri, Oct 23
China Eastern Logo
12:30 pm - 8:10 pm
LAX
-
SAI
65h 40m
3 stops
China Eastern Logo
9:10 pm - 10:05 am
SAI
-
LAX
50h 55m
3 stops
$818China Eastern
Wed, Aug 12 - Tue, Sep 1
Multiple Airlines Logo
12:30 pm - 8:10 pm
LAX
-
SAI
41h 40m
3 stops
Multiple Airlines Logo
7:20 pm - 10:05 am
SAI
-
LAX
28h 45m
2 stops
$836Multiple Airlines
Fri, Oct 2 - Tue, Oct 27
Multiple Airlines Logo
12:30 pm - 9:00 am
LAX
-
SAI
30h 30m
2 stops
Multiple Airlines Logo
10:00 pm - 10:05 am
SAI
-
LAX
50h 05m
2 stops
$897Multiple Airlines
Sun, Aug 16 - Wed, Aug 26
Multiple Airlines Logo
12:30 pm - 11:15 am
LAX
-
SAI
32h 45m
2 stops
Multiple Airlines Logo
9:10 pm - 10:05 am
SAI
-
LAX
26h 55m
2 stops
$898Multiple Airlines
Tue, Nov 24 - Sun, Dec 6
Multiple Airlines Logo
11:30 am - 9:00 pm
LAX
-
SAI
42h 30m
3 stops
Multiple Airlines Logo
7:10 pm - 9:05 am
SAI
-
LAX
28h 55m
2 stops
$948Multiple Airlines
Tue, Nov 24 - Sun, Dec 6
Multiple Airlines Logo
11:30 am - 9:00 pm
LAX
-
SAI
42h 30m
2 stops
Multiple Airlines Logo
9:30 pm - 9:05 am
SAI
-
LAX
26h 35m
2 stops
$968Multiple Airlines
Tue, Nov 24 - Sun, Dec 6
Multiple Airlines Logo
11:30 am - 9:00 pm
LAX
-
SAI
42h 30m
3 stops
Multiple Airlines Logo
9:30 pm - 9:05 am
SAI
-
LAX
26h 35m
2 stops
$969Multiple Airlines
Booking Insights

KAYAK's insights & trends for Los Angeles to Siem Reap flights

Get data-powered insights and trends into flights from Los Angeles to Siem Reap to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Los Angeles to Siem Reap?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Los Angeles to Siem Reap, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Los Angeles to Siem Reap is April, when tickets cost $157 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,442 and $1,080 respectively.

Find deals

Good to know

Low seasonDecember
Best time to beat the crowds but there is an average 85% increase in price.
Most popular time to fly with an average 1% increase in price.

FAQs - booking Siem Reap flights

  • How does KAYAK find such low prices on flights from Los Angeles to Siem Reap?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Los Angeles to Siem Reap.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Los Angeles to Siem Reap?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Los Angeles to Siem Reap is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Los Angeles to Siem Reap?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Los Angeles to Siem Reap with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Los Angeles to Siem Reap?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Los Angeles to Siem Reap up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Los Angeles to Siem Reap

 
See real verified KAYAK customer reviews for airlines flying from Los Angeles to Siem Reap. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Los Angeles to Siem Reap? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1563 reviews
8.0Entertainment
8.3Boarding
8.0Comfort
8.6Crew
7.8Food
Airline reviews

The friendliness of the attendants, and the quality of the service.

10.0 ExcellentAnonymous, Jun 2026
LAX - NRT
Read more Singapore Airlines reviews

The friendliness of the attendants, and the quality of the service.

Food was terrible , uncomfortable seats, WiFi did not work, will never fly Singapore again.

A little more room from the reclining seat in the front of me.

They ran out of the second choice of food was stuck with fish

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Everything was great keep up the good work 😁, can't ask for more.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

The crew and their service was top notch, but the plane itself seemed to be on the older side and worn out. Also, the food could’ve been better. 9 out of 10.

Excellent- a lot of food Disappointed with the premium economy pouch- did not have toothbrush and tooth paste or socks. Other airlines provide them

Everything you need to know for your flight from Los Angeles to Siem Reap

Information on your arrival and departure airports

Los Angeles (LAX)