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Cheap flights from Atlanta 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 Atlanta to Siem Reap departing on 7/21. 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.
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
30h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,294Lufthansa
Tue, Sep 22 - Tue, Oct 13
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
30h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,295Lufthansa
Tue, Sep 22 - Tue, Oct 13
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
54h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,304Lufthansa
Tue, Sep 29 - Thu, Oct 22
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
54h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,305Lufthansa
Tue, Sep 29 - Thu, Oct 22
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
30h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,311Lufthansa
Sun, Sep 20 - Mon, Oct 12
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
30h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,312Lufthansa
Mon, Sep 21 - Tue, Oct 13
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
54h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,321Lufthansa
Sun, Sep 27 - Tue, Oct 20
Lufthansa Logo
3:55 pm - 9:40 am
ATL
-
SAI
54h 45m
2 stops
Lufthansa Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,322Lufthansa
Sun, Sep 27 - Thu, Oct 22
Multiple Airlines Logo
1:21 pm - 6:55 pm
ATL
-
SAI
42h 34m
3 stops
Multiple Airlines Logo
10:30 am - 1:45 pm
SAI
-
ATL
38h 15m
2 stops
$1,357Multiple Airlines
Sun, Sep 6 - Mon, Sep 21
Multiple Airlines Logo
2:40 pm - 6:55 pm
ATL
-
SAI
41h 15m
3 stops
Multiple Airlines Logo
4:00 pm - 1:45 pm
SAI
-
ATL
32h 45m
2 stops
$1,359Multiple Airlines
Wed, Sep 30 - Wed, Oct 21

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Qatar Airways flights from Atlanta to Region of Siem Reap

Our best Qatar Airways deals on Atlanta to Region of Siem Reap flight tickets
Qatar Airways
Sep 20
ATL7:10 pmAtlanta Hartsfield-Jackson
36h 45m
2 stops
SAI6:55 pmSiem Reap–Angkor Intl
Oct 15
SAI7:35 pmSiem Reap–Angkor Intl
31h 20m
2 stops
ATL3:55 pmAtlanta Hartsfield-Jackson
$1,487
Qatar Airways
Sep 20
ATL7:10 pmAtlanta Hartsfield-Jackson
36h 45m
2 stops
SAI6:55 pmSiem Reap–Angkor Intl
Oct 15
SAI7:35 pmSiem Reap–Angkor Intl
31h 20m
2 stops
ATL3:55 pmAtlanta Hartsfield-Jackson
$1,488
Qatar Airways
Sep 20
ATL7:10 pmAtlanta Hartsfield-Jackson
36h 45m
2 stops
SAI6:55 pmSiem Reap–Angkor Intl
Oct 12
SAI7:35 pmSiem Reap–Angkor Intl
55h 20m
2 stops
ATL3:55 pmAtlanta Hartsfield-Jackson
$1,522

Lufthansa flights from Atlanta to Region of Siem Reap

Our best Lufthansa deals on Atlanta to Region of Siem Reap flight tickets
Lufthansa
Sep 22
ATL3:55 pmAtlanta Hartsfield-Jackson
30h 45m
2 stops
SAI9:40 amSiem Reap–Angkor Intl
Oct 13
SAI10:30 amSiem Reap–Angkor Intl
38h 15m
2 stops
ATL1:45 pmAtlanta Hartsfield-Jackson
$1,294
Lufthansa
Sep 22
ATL3:55 pmAtlanta Hartsfield-Jackson
30h 45m
2 stops
SAI9:40 amSiem Reap–Angkor Intl
Oct 13
SAI10:30 amSiem Reap–Angkor Intl
38h 15m
2 stops
ATL1:45 pmAtlanta Hartsfield-Jackson
$1,295
Lufthansa
Sep 29
ATL3:55 pmAtlanta Hartsfield-Jackson
54h 45m
2 stops
SAI9:40 amSiem Reap–Angkor Intl
Oct 22
SAI10:30 amSiem Reap–Angkor Intl
38h 15m
2 stops
ATL1:45 pmAtlanta Hartsfield-Jackson
$1,304

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 July 2, 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
Quickest round-trip

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Tue 9/22

3:55 pm-9:40 am

2 stops30h 45m

Siem Reap–Angkor Intl

Tue 10/13

10:30 am-1:45 pm

2 stops38h 15m

$1,294

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Tue 9/22

3:55 pm-9:40 am

2 stops30h 45m

Siem Reap–Angkor Intl

Tue 10/13

10:30 am-1:45 pm

2 stops38h 15m

$1,295

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Tue 9/29

3:55 pm-9:40 am

2 stops54h 45m

Siem Reap–Angkor Intl

Thu 10/22

10:30 am-1:45 pm

2 stops38h 15m

$1,304

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Tue 9/29

3:55 pm-9:40 am

2 stops54h 45m

Siem Reap–Angkor Intl

Thu 10/22

10:30 am-1:45 pm

2 stops38h 15m

$1,305

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sun 9/20

3:55 pm-9:40 am

2 stops30h 45m

Siem Reap–Angkor Intl

Mon 10/12

10:30 am-1:45 pm

2 stops38h 15m

$1,311

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Mon 9/21

3:55 pm-9:40 am

2 stops30h 45m

Siem Reap–Angkor Intl

Tue 10/13

10:30 am-1:45 pm

2 stops38h 15m

$1,312

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sun 9/27

3:55 pm-9:40 am

2 stops54h 45m

Siem Reap–Angkor Intl

Tue 10/20

10:30 am-1:45 pm

2 stops38h 15m

$1,321

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sun 9/27

3:55 pm-9:40 am

2 stops54h 45m

Siem Reap–Angkor Intl

Thu 10/22

10:30 am-1:45 pm

2 stops38h 15m

$1,322

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Sun 9/6

1:21 pm-6:55 pm

3 stops42h 34m

Siem Reap–Angkor Intl

Mon 9/21

10:30 am-1:45 pm

2 stops38h 15m

$1,357

AtlantaSiem Reap

ATL - SAI

ATLSAI

Atlanta Hartsfield-Jackson

Wed 9/30

2:40 pm-6:55 pm

3 stops41h 15m

Siem Reap–Angkor Intl

Wed 10/21

4:00 pm-1:45 pm

2 stops32h 45m

$1,359

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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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.
Search flight deals

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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