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Cheap flights from Atlanta to Siem Reap from $1,337

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to Siem Reap departing on 9/5. 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 Atlanta to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:30 pm - 11:15 amATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
26h 45m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl
Multiple Airlines Logo
9:40 am - 4:30 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
41h 50m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$1,337Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
7:10 pm - 12:15 pmATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
30h 05m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
7:35 pm - 3:55 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
31h 20m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,457Multiple Airlines
Fri, Sep 11 - Sun, Sep 27
Multiple Airlines Logo
9:30 pm - 11:15 amATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
26h 45m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl
Multiple Airlines Logo
4:55 pm - 4:30 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
34h 35m3 stops Bangkok Don Mueang Intl Bengaluru Intl Abu Dhabi Zayed Intl
$1,494Multiple Airlines
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
9:20 pm - 9:45 pmATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
36h 25m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl
Multiple Airlines Logo
9:55 am - 3:50 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
41h 55m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$1,511Multiple Airlines
Tue, Nov 10 - Fri, Nov 20
Multiple Airlines Logo
8:00 am - 9:15 amATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
37h 15m3 stops Seattle/Tacoma Intl Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
7:25 pm - 3:15 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
55h 50m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,540Multiple Airlines
Tue, Nov 10 - Fri, Nov 20
Singapore Airlines Logo
2:20 pm - 9:55 amATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
31h 35m3 stops New York John F Kennedy Intl Frankfurt am Main Singapore Changi
Singapore Airlines Logo
10:45 am - 11:05 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
48h 20m3 stops Singapore Changi Frankfurt am Main New York John F Kennedy Intl
$1,590Singapore Airlines
Tue, Nov 10 - Fri, Nov 20
Multiple Airlines Logo
9:50 pm - 9:10 amATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
47h 20m2 stops Istanbul Ho Chi Minh City
Multiple Airlines Logo
7:25 pm - 7:45 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
36h 20m2 stops Bangkok Suvarnabhumi Istanbul
$1,668Multiple Airlines
Thu, Dec 3 - Fri, Dec 11
Multiple Airlines Logo
7:10 pm - 9:00 amATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
26h 50m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
9:40 am - 7:33 amSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
32h 53m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,687Multiple Airlines
Fri, Sep 11 - Sun, Sep 27
Multiple Airlines Logo
9:30 am - 9:15 amATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
35h 45m3 stops Seattle/Tacoma Intl Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
7:25 pm - 3:15 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
55h 50m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,724Multiple Airlines
Thu, Dec 3 - Fri, Dec 11
Singapore Airlines Logo
6:17 am - 3:55 pmATL  Atlanta Hartsfield-Jackson-SAI Siem Reap–Angkor Intl
45h 38m3 stops New York John F Kennedy Intl Frankfurt am Main Singapore Changi
Singapore Airlines Logo
10:45 am - 11:15 pmSAI  Siem Reap–Angkor Intl-ATL Atlanta Hartsfield-Jackson
48h 30m3 stops Singapore Changi Frankfurt am Main New York John F Kennedy Intl
$2,324Singapore Airlines
Thu, Dec 3 - Fri, Dec 11

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Singapore Airlines flights from Atlanta to Region of Siem Reap

Our best Singapore Airlines deals on Atlanta to Region of Siem Reap flight tickets
Singapore Airlines
Nov 10
ATL2:20 pmAtlanta Hartsfield-Jackson
31h 35m
3 stops
SAI9:55 amSiem Reap–Angkor Intl
Nov 20
SAI10:45 amSiem Reap–Angkor Intl
48h 20m
3 stops
ATL11:05 pmAtlanta Hartsfield-Jackson
$1,590
Singapore Airlines
Dec 3
ATL6:17 amAtlanta Hartsfield-Jackson
45h 43m
3 stops
SAI4:00 pmSiem Reap–Angkor Intl
Dec 11
SAI10:45 amSiem Reap–Angkor Intl
48h 30m
3 stops
ATL11:15 pmAtlanta Hartsfield-Jackson
$2,324
Singapore Airlines
Nov 2
ATL6:15 amAtlanta Hartsfield-Jackson
39h 40m
3 stops
SAI9:55 amSiem Reap–Angkor Intl
Nov 13
SAI10:45 amSiem Reap–Angkor Intl
48h 22m
2 stops
ATL11:07 pmAtlanta Hartsfield-Jackson
$3,485

momondo Fare Finder

 
Customize your flight search to find flights from Atlanta 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 August 11, 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 Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Sat 9/5

9:30 pm-11:15 am

2 stops26h 45m

Siem Reap–Angkor Intl

Sun 9/13

9:40 am-4:30 pm

2 stops41h 50m

$1,337

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Fri 9/11

7:10 pm-12:15 pm

2 stops30h 05m

Siem Reap–Angkor Intl

Sun 9/27

7:35 pm-3:55 pm

2 stops31h 20m

$1,457

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Sat 9/5

9:30 pm-11:15 am

2 stops26h 45m

Siem Reap–Angkor Intl

Sun 9/13

4:55 pm-4:30 pm

3 stops34h 35m

$1,494

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Tue 11/10

9:20 pm-9:45 pm

2 stops36h 25m

Siem Reap–Angkor Intl

Fri 11/20

9:55 am-3:50 pm

2 stops41h 55m

$1,511

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Tue 11/10

8:00 am-9:15 am

3 stops37h 15m

Siem Reap–Angkor Intl

Fri 11/20

7:25 pm-3:15 pm

2 stops55h 50m

$1,540

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Tue 11/10

2:20 pm-9:55 am

3 stops31h 35m

Siem Reap–Angkor Intl

Fri 11/20

10:45 am-11:05 pm

3 stops48h 20m

$1,590

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Thu 12/3

9:50 pm-9:10 am

2 stops47h 20m

Siem Reap–Angkor Intl

Fri 12/11

7:25 pm-7:45 pm

2 stops36h 20m

$1,668
Quickest round-trip

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Fri 9/11

7:10 pm-9:00 am

2 stops26h 50m

Siem Reap–Angkor Intl

Sun 9/27

9:40 am-7:33 am

3 stops32h 53m

$1,687

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Thu 12/3

9:30 am-9:15 am

3 stops35h 45m

Siem Reap–Angkor Intl

Fri 12/11

7:25 pm-3:15 pm

2 stops55h 50m

$1,724

AtlantaSiem Reap

ATL Atlanta Hartsfield-Jackson - SAI Siem Reap–Angkor Intl

ATLSAI

Atlanta Hartsfield-Jackson

Thu 12/3

6:17 am-3:55 pm

3 stops45h 38m

Siem Reap–Angkor Intl

Fri 12/11

10:45 am-11:15 pm

3 stops48h 30m

$2,324

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Atlanta to Region of Siem Reap flight deals and tips

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

Fastest flight time

26h 45m

Direct flights

None
The fastest flight from Atlanta to Region of Siem Reap takes 26h 45m
There are no direct flights from Atlanta to Region of Siem Reap. There are no popular flight routes from Atlanta to Region of Siem Reap.
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Frequently asked questions about flying from Atlanta to Siem Reap

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

    Prices for flights from Atlanta Hartsfield-Jackson Airport to Siem Reap are updated daily.

  • How old do you have to be to fly from Atlanta Hartsfield-Jackson Airport to Siem Reap?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Atlanta Hartsfield-Jackson 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.

Frequently asked questions about flying from Atlanta to Siem Reap

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

    Search flight deals from Atlanta to Region of Siem Reap. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Atlanta 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 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?

Finding the right flight to Siem Reap from Atlanta 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 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 you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Siem Reap from Atlanta.

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

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