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Cheap flights from San Diego to Siem Reap from $657

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Siem Reap departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from San Diego to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:15 pm - 6:20 pm
SAN
-
SAI
37h 05m
3 stops
Multiple Airlines Logo
10:35 pm - 10:19 am
SAI
-
SAN
49h 44m
3 stops
$1,487Multiple Airlines
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
9:15 pm - 9:40 am
SAN
-
SAI
46h 25m
3 stops
Multiple Airlines Logo
10:30 am - 10:19 am
SAI
-
SAN
37h 49m
2 stops
$1,824Multiple Airlines
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
7:35 pm - 9:40 am
SAN
-
SAI
48h 05m
2 stops
Multiple Airlines Logo
10:30 am - 12:59 pm
SAI
-
SAN
40h 29m
2 stops
$1,917Multiple Airlines
Sat, May 2 - Sat, May 9

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Region of Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from San Diego to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Sat 5/2

3:15 pm-6:20 pm

3 stops37h 05m

Siem Reap–Angkor Intl

Sat 5/9

10:35 pm-10:19 am

3 stops49h 44m

$1,487
Quickest round-trip

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Sat 5/2

9:15 pm-9:40 am

3 stops46h 25m

Siem Reap–Angkor Intl

Sat 5/9

10:30 am-10:19 am

2 stops37h 49m

$1,824

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Sat 5/2

7:35 pm-9:40 am

2 stops48h 05m

Siem Reap–Angkor Intl

Sat 5/9

10:30 am-12:59 pm

2 stops40h 29m

$1,917
Cheapest one-way

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Fri 4/3

6:10 pm-12:20 pm

3 stops76h 10m

$657

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Sun 4/5

7:40 am-8:45 am

3 stops35h 05m

$725

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Wed 4/1

10:25 am-9:05 am

3 stops56h 40m

$735

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Sat 4/4

3:46 pm-6:05 pm

3 stops36h 19m

$830

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Mon 3/30

6:25 am-2:50 pm

3 stops42h 25m

$868

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Sun 4/5

10:25 am-8:45 am

2 stops32h 20m

$905

San DiegoSiem Reap

SAN - SAI

SANSAI

San Diego

Sat 4/4

2:00 pm-6:20 pm

2 stops38h 20m

$953

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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Cheap San Diego to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Region of Siem Reap

Fastest flight time

37h 05m

Direct flights

None
The fastest flight from San Diego to Region of Siem Reap takes 37h 05m
There are no direct flights from San Diego to Region of Siem Reap. There are no popular flight routes from San Diego to Region of Siem Reap.
Search flight deals

  • When did momondo last update prices for flights from San Diego Airport to Siem Reap?

    Prices for flights from San Diego Airport to Siem Reap refresh daily.

  • How old do you have to be to fly from San Diego Airport to Siem Reap?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Siem Reap.

  • What documentation or ID do you need to fly to Siem Reap?

    The necessary travel and health documents for your Siem Reap trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from San Diego to Region of Siem Reap?

    Confirm your travel details to search for the latest offers for flights from San Diego to Region of Siem Reap. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from San Diego to Region of Siem Reap with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

Finding the right flight to Siem Reap from San Diego 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 Siem Reap quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Siem Reap from San Diego which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential San Diego 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.

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

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from San Diego and alert you when they change.

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