The cheapest times to fly from REP to ATL are

  • March 26th to July 15th
  • October 8th to November 11th (except the weeks of October 15th and October 29th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from REP to ATL is mid April. Prices can be as high as $4495 for Tuesday flights during mid to late November, or as low as $1236 for Wednesday flights around mid April.


When to Fly to Atlanta

Flying from Siem Reap (REP) to Atlanta, GA (ATL) will usually cost between $1287 to $3245 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid April with an average ticket price of $1340. Due to high demand the most expensive time to fly is mid to late November, with an average price of $2522. Planning your trip to low-cost times can easily save you $1181 on economy flights and even more on first-class flights. Generally, any price below $1557 can be considered a good price for a round-trip REP to ATL flight.

See below for a graph of average weekly prices for the REP to ATL route. All prices are for round-trip tickets in USD.

REP to ATL Flight Prices

Compared to other flights, the REP to ATL flight is more expensive than the average and costs slightly more than the average flight leaving from Krong Siem Reap. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Tuesdays are the most expensive days to fly to Atlanta, and Mondays are the most expensive days to return to Krong Siem Reap. Selecting flights on the least expensive days could save you up to $324 (17%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $1514. Return trip prices are from the ATL to REP flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from REP to ATL can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 17 hour 26 minutes may not be realistic.


Flight Hacking REP to ATL

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from REP to ATL — but Champion Traveler does!

Hack #1: Kuala Lumpur (REP > KUL > ATL)

  • Price for both tickets: $989
  • Average savings: $568 (36.48%)

See REP to HKG flights

Hack #2: Hong Kong (REP > HKG > ATL)

  • Price for both tickets: $1107
  • Average savings: $451 (28.93%)

See REP to KUL flights

Hack #3: Los Angeles, CA (REP > LAX > ATL)

  • Price for both tickets: $1201
  • Average savings: $357 (22.9%)

See REP to LAX flights


Flight Questions Answered

Still have questions about flying from REP to ATL? We’ve got answers.

Which airlines fly this route?

You can find 19 major airlines flying this route most often: Air Canada, Air France, American, Asiana, Bangkok Airways, British Airways, Cathay Pacific, China Eastern, China Southern, Delta, Finnair, JAL, KLM, Qatar Airways, Singapore Airlines, THAI, United, Vietnam Airlines, WestJet, and potentially more during busy seasons.

How far away is it from Hartsfield-Jackson Atlanta International Airport to Siem Reap International Airport?

The distance between the two airports is roughly 9139 miles or 14708 kilometers.

How long does it take to fly from REP to ATL?

The real-world flight time for a nonstop REP to ATL flight is about 17 hour 26 minutes.

How many flights go between Siem Reap and Atlanta, GA?

It depends on the day of the week and the date, but a typical day might have around 8 available flights from REP to ATL.


Airport Location Info


Departing Airport

Origination code REP
Origination airport name Siem Reap International Airport
City Siem Reap
Country Cambodia
Latitude 13.4
Longitude 103.8

Return Airport

Destination code ATL
Destination airport name Hartsfield-Jackson Atlanta International Airport
City Atlanta, GA
Country the United States
Latitude 33.6
Longitude -84.4


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.