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Cheap flights from Atlanta to Siem Reap from $629

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to Siem Reap departing on 4/25. 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 Atlanta to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
10:10 am - 9:40 am
ATL
-
SAI
36h 30m
3 stops
Singapore Airlines Logo
10:30 am - 11:59 pm
SAI
-
ATL
48h 29m
2 stops
$1,325Singapore Airlines
Fri, Sep 4 - Wed, Sep 9
Multiple Airlines Logo
9:50 pm - 6:45 pm
ATL
-
SAI
33h 55m
2 stops
Multiple Airlines Logo
7:30 pm - 7:45 pm
SAI
-
ATL
35h 15m
2 stops
$1,373Multiple Airlines
Fri, Sep 4 - Wed, Sep 9
Singapore Airlines Logo
10:10 am - 9:40 am
ATL
-
SAI
36h 30m
3 stops
Singapore Airlines Logo
4:00 pm - 6:20 pm
SAI
-
ATL
37h 20m
3 stops
$1,477Singapore Airlines
Fri, Sep 4 - Wed, Sep 9
Etihad Airways Logo
9:40 pm - 6:45 pm
ATL
-
SAI
34h 05m
2 stops
Etihad Airways Logo
9:40 am - 4:30 pm
SAI
-
ATL
41h 50m
2 stops
$1,948Etihad Airways
Fri, Apr 3 - Sat, Apr 11
Multiple Airlines Logo
9:40 pm - 10:50 am
ATL
-
SAI
26h 10m
2 stops
Multiple Airlines Logo
2:50 pm - 4:30 pm
SAI
-
ATL
36h 40m
2 stops
$2,019Multiple Airlines
Sun, Jun 28 - Tue, Jul 14
KLM Logo
8:05 pm - 12:15 pm
ATL
-
SAI
29h 10m
2 stops
KLM Logo
7:30 pm - 7:50 pm
SAI
-
ATL
59h 20m
2 stops
$2,055KLM
Sun, Jun 28 - Tue, Jul 14
Multiple Airlines Logo
8:30 pm - 12:15 pm
ATL
-
SAI
28h 45m
2 stops
Multiple Airlines Logo
7:30 pm - 3:55 pm
SAI
-
ATL
31h 25m
2 stops
$2,069Multiple Airlines
Sun, Jun 28 - Tue, Jul 14
Multiple Airlines Logo
9:40 pm - 2:20 pm
ATL
-
SAI
29h 40m
2 stops
Multiple Airlines Logo
2:50 pm - 4:30 pm
SAI
-
ATL
36h 40m
2 stops
$2,094Multiple Airlines
Sat, Jun 27 - Tue, Jul 14
Multiple Airlines Logo
8:30 pm - 9:00 am
ATL
-
SAI
25h 30m
2 stops
Multiple Airlines Logo
7:30 pm - 3:55 pm
SAI
-
ATL
31h 25m
2 stops
$2,107Multiple Airlines
Sat, Jun 27 - Tue, Jul 14
Singapore Airlines Logo
10:10 am - 9:40 am
ATL
-
SAI
36h 30m
3 stops
Singapore Airlines Logo
10:30 am - 5:27 pm
SAI
-
ATL
41h 57m
3 stops
$2,280Singapore Airlines
Sat, Jun 27 - Tue, Jul 14

Singapore Airlines flights from Atlanta to Siem Reap

Our best Singapore Airlines deals on Atlanta to Siem Reap flight tickets
Singapore Airlines
Sep 4
ATL10:10 amAtlanta Hartsfield-Jackson
36h 30m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Sep 9
SAI10:30 amSiem Reap–Angkor Intl
48h 29m
2 stops
ATL11:59 pmAtlanta Hartsfield-Jackson
$1,325
Singapore Airlines
Sep 4
ATL10:10 amAtlanta Hartsfield-Jackson
36h 30m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Sep 9
SAI4:00 pmSiem Reap–Angkor Intl
37h 20m
3 stops
ATL6:20 pmAtlanta Hartsfield-Jackson
$1,477
Singapore Airlines
Jun 27
ATL10:10 amAtlanta Hartsfield-Jackson
36h 30m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Jul 14
SAI10:30 amSiem Reap–Angkor Intl
41h 57m
3 stops
ATL5:27 pmAtlanta Hartsfield-Jackson
$2,280

momondo Fare Finder

 
Customize your flight search to find flights from Atlanta 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 March 20, 2026.
Use the filters below to find and compare flights from Atlanta to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Fri 9/4

10:10 am-9:40 am

3 stops36h 30m

Siem Reap–Angkor Intl

Wed 9/9

10:30 am-11:59 pm

2 stops48h 29m

$1,325

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Fri 9/4

9:50 pm-6:45 pm

2 stops33h 55m

Siem Reap–Angkor Intl

Wed 9/9

7:30 pm-7:45 pm

2 stops35h 15m

$1,373

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Fri 9/4

10:10 am-9:40 am

3 stops36h 30m

Siem Reap–Angkor Intl

Wed 9/9

4:00 pm-6:20 pm

3 stops37h 20m

$1,477

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Fri 4/3

9:40 pm-6:45 pm

2 stops34h 05m

Siem Reap–Angkor Intl

Sat 4/11

9:40 am-4:30 pm

2 stops41h 50m

$1,948

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sun 6/28

9:40 pm-10:50 am

2 stops26h 10m

Siem Reap–Angkor Intl

Tue 7/14

2:50 pm-4:30 pm

2 stops36h 40m

$2,019

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sun 6/28

8:05 pm-12:15 pm

2 stops29h 10m

Siem Reap–Angkor Intl

Tue 7/14

7:30 pm-7:50 pm

2 stops59h 20m

$2,055

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sun 6/28

8:30 pm-12:15 pm

2 stops28h 45m

Siem Reap–Angkor Intl

Tue 7/14

7:30 pm-3:55 pm

2 stops31h 25m

$2,069

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sat 6/27

9:40 pm-2:20 pm

2 stops29h 40m

Siem Reap–Angkor Intl

Tue 7/14

2:50 pm-4:30 pm

2 stops36h 40m

$2,094
Quickest round-trip

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sat 6/27

8:30 pm-9:00 am

2 stops25h 30m

Siem Reap–Angkor Intl

Tue 7/14

7:30 pm-3:55 pm

2 stops31h 25m

$2,107

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sat 6/27

10:10 am-9:40 am

3 stops36h 30m

Siem Reap–Angkor Intl

Tue 7/14

10:30 am-5:27 pm

3 stops41h 57m

$2,280

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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When to book flights from Atlanta to Siem Reap

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

Cheap Atlanta to Siem Reap (ATL to SAI) flight deals and tips

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

Fastest flight time

33h 10m

Direct flights

None
The fastest flight from Atlanta to Siem Reap takes 33h 10m
There are no direct flights from Atlanta to Siem Reap. There are no popular flight routes from Atlanta to Siem Reap.
Search flight deals

  • How far is Atlanta Hartsfield-Jackson to Siem Reap–Angkor Intl by plane?

    Siem Reap–Angkor Intl is 9130.3 mi away from Atlanta Hartsfield-Jackson. Flights usually cover this in 33h 10m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Atlanta Hartsfield-Jackson Airport to Siem Reap–Angkor Intl Airport?

    Prices for flights from Atlanta Hartsfield-Jackson Airport to Siem Reap–Angkor Intl Airport were last updated today.

  • How old do you have to be to fly from Atlanta Hartsfield-Jackson 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 Atlanta Hartsfield-Jackson Airport to Siem Reap–Angkor Intl Airport.

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

    The necessary travel and health documents for your Siem Reap–Angkor Intl Airport 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 Atlanta to Siem Reap?

    Price Alerts will notify you by email when the price for flights to Siem Reap from Atlanta decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Atlanta to Siem Reap with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Siem Reap from Atlanta.

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

Yes. momondo enables you to select and highlight flights to Siem Reap from Atlanta with this policy.

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

Once all potential Atlanta 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 Atlanta to Siem Reap right now. Can momondo alert me if prices change?

Price alerts on flights to Siem Reap from Atlanta are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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