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Cheap flights from San Diego to Siem Reap from $1,155

This is the cheapest round-trip 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 2/7. 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

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
9:59 pm - 9:15 amSAN  San Diego-SAI Siem Reap–Angkor Intl
44h 16m3 stops San Francisco Hong Kong Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:20 pm - 7:43 amSAI  Siem Reap–Angkor Intl-SAN San Diego
33h 23m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco
$1,155Multiple Airlines
Sun, Feb 7 - Fri, Feb 19
Multiple Airlines Logo
11:00 am - 5:40 pmSAN  San Diego-SAI Siem Reap–Angkor Intl
39h 40m2 stops San Francisco Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 9:32 pmSAI  Siem Reap–Angkor Intl-SAN San Diego
39h 02m2 stops Ho Chi Minh City San Francisco
$1,213Multiple Airlines
Sun, Feb 7 - Fri, Feb 19
Multiple Airlines Logo
7:00 am - 6:20 pmSAN  San Diego-SAI Siem Reap–Angkor Intl
45h 20m2 stops San Francisco Ho Chi Minh City
Multiple Airlines Logo
9:35 am - 10:59 pmSAI  Siem Reap–Angkor Intl-SAN San Diego
27h 24m2 stops Ho Chi Minh City San Francisco
$1,232Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
9:59 pm - 9:15 amSAN  San Diego-SAI Siem Reap–Angkor Intl
44h 16m3 stops San Francisco Hong Kong Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
6:40 pm - 11:43 pmSAI  Siem Reap–Angkor Intl-SAN San Diego
44h 03m2 stops Ho Chi Minh City San Francisco
$1,299Multiple Airlines
Sun, Feb 7 - Fri, Feb 19
Multiple Airlines Logo
5:30 pm - 1:15 pmSAN  San Diego-SAI Siem Reap–Angkor Intl
28h 45m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Ho Chi Minh City
Multiple Airlines Logo
9:30 pm - 9:02 amSAI  Siem Reap–Angkor Intl-SAN San Diego
50h 32m2 stops Ho Chi Minh City San Francisco
$1,395Multiple Airlines
Mon, Nov 2 - Sat, Nov 14
Multiple Airlines Logo
3:00 pm - 4:00 pmSAN  San Diego-SAI Siem Reap–Angkor Intl
34h 00m2 stops Los Angeles Singapore Changi
Multiple Airlines Logo
10:45 am - 10:23 amSAI  Siem Reap–Angkor Intl-SAN San Diego
38h 38m2 stops Singapore Changi Los Angeles
$1,470Multiple Airlines
Mon, Nov 2 - Sat, Nov 14
Multiple Airlines Logo
6:32 pm - 12:40 pmSAN  San Diego-SAI Siem Reap–Angkor Intl
27h 08m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
10:00 am - 10:13 amSAI  Siem Reap–Angkor Intl-SAN San Diego
39h 13m3 stops Ho Chi Minh City Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,505Multiple Airlines
Mon, Nov 2 - Sat, Nov 14
Multiple Airlines Logo
11:30 am - 9:30 pmSAN  San Diego-SAI Siem Reap–Angkor Intl
44h 00m3 stops Seattle/Tacoma Intl Dubai Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
11:50 pm - 11:44 pmSAI  Siem Reap–Angkor Intl-SAN San Diego
37h 54m3 stops Bangkok Suvarnabhumi Dubai Intl Seattle/Tacoma Intl
$1,701Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
6:35 pm - 6:40 pmSAN  San Diego-SAI Siem Reap–Angkor Intl
34h 05m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Da Nang
Multiple Airlines Logo
9:35 am - 10:59 pmSAI  Siem Reap–Angkor Intl-SAN San Diego
27h 24m2 stops Ho Chi Minh City San Francisco
$1,723Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
4:45 pm - 9:10 amSAN  San Diego-SAI Siem Reap–Angkor Intl
25h 25m2 stops San Francisco Ho Chi Minh City
Multiple Airlines Logo
10:00 am - 9:32 pmSAI  Siem Reap–Angkor Intl-SAN San Diego
26h 32m2 stops Ho Chi Minh City San Francisco
$6,248Multiple Airlines
Thu, Dec 24 - Thu, Jan 7

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Customize your flight search to find flights from San Diego to 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 August 12, 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 San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Sun 2/7

9:59 pm-9:15 am

3 stops44h 16m

Siem Reap–Angkor Intl

Fri 2/19

1:20 pm-7:43 am

3 stops33h 23m

$1,155

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Sun 2/7

11:00 am-5:40 pm

2 stops39h 40m

Siem Reap–Angkor Intl

Fri 2/19

9:30 pm-9:32 pm

2 stops39h 02m

$1,213

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Thu 9/24

7:00 am-6:20 pm

2 stops45h 20m

Siem Reap–Angkor Intl

Thu 10/1

9:35 am-10:59 pm

2 stops27h 24m

$1,232

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Sun 2/7

9:59 pm-9:15 am

3 stops44h 16m

Siem Reap–Angkor Intl

Fri 2/19

6:40 pm-11:43 pm

2 stops44h 03m

$1,299

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Mon 11/2

5:30 pm-1:15 pm

3 stops28h 45m

Siem Reap–Angkor Intl

Sat 11/14

9:30 pm-9:02 am

2 stops50h 32m

$1,395

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Mon 11/2

3:00 pm-4:00 pm

2 stops34h 00m

Siem Reap–Angkor Intl

Sat 11/14

10:45 am-10:23 am

2 stops38h 38m

$1,470

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Mon 11/2

6:32 pm-12:40 pm

3 stops27h 08m

Siem Reap–Angkor Intl

Sat 11/14

10:00 am-10:13 am

3 stops39h 13m

$1,505

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Thu 9/24

11:30 am-9:30 pm

3 stops44h 00m

Siem Reap–Angkor Intl

Thu 10/1

11:50 pm-11:44 pm

3 stops37h 54m

$1,701

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Thu 9/24

6:35 pm-6:40 pm

3 stops34h 05m

Siem Reap–Angkor Intl

Thu 10/1

9:35 am-10:59 pm

2 stops27h 24m

$1,723
Quickest round-trip

San DiegoSiem Reap

SAN San Diego - SAI Siem Reap–Angkor Intl

SANSAI

San Diego

Thu 12/24

4:45 pm-9:10 am

2 stops25h 25m

Siem Reap–Angkor Intl

Thu 1/7

10:00 am-9:32 pm

2 stops26h 32m

$6,248

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from San Diego to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to Siem Reap (SAN to SAI) flight deals and tips

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

Fastest flight time

44h 16m

Direct flights

None
The fastest flight from San Diego to Siem Reap takes 44h 16m
There are no direct flights from San Diego to Siem Reap. There are no popular flight routes from San Diego to Siem Reap.
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Frequently asked questions about flying from San Diego to Siem Reap

  • How far is San Diego to Siem Reap–Angkor Intl by plane?

    A flight from San Diego to Siem Reap–Angkor Intl will travel around 8252.8 mi. 44h 16m is a normal flight duration for this route.

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

    Prices for flights from San Diego Airport to Siem Reap–Angkor Intl Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to Siem Reap–Angkor Intl Airport.

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

    The required travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from San Diego to Siem Reap

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

    Confirm your travel details to search for the latest offers for flights from San Diego to 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 Siem Reap with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Diego to Siem Reap for you.

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

Flights from San Diego 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.

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?

Yes momondo offers price alerts on flights to Siem Reap from San Diego. 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.

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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.
First Class to Siem Reap
Business Class to Siem Reap