The cheapest times to fly from REP to LGA are

  • February 26th to March 11th
  • March 26th to July 29th (except the week of June 4th)
  • October 8th to October 28th

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 LGA is early to mid July. Prices can be as high as $6072 for Thursday flights during late October to early November, or as low as $1058 for Friday flights around early to mid July.


When to Fly to New York

Flying from Siem Reap (REP) to New York, NY (LGA) will usually cost between $1262 to $3960 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid July with an average ticket price of $2023. Due to high demand the most expensive time to fly is late October to early November, with an average price of $3683. Planning your trip to low-cost times can easily save you $1661 on economy flights and even more on first-class flights. Generally, any price below $3335 can be considered a good price for a round-trip REP to LGA flight.

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

REP to LGA Flight Prices

Compared to other flights, the REP to LGA flight is more expensive than the average and costs more than the average flight leaving from Krong Siem Reap. The average price per mile (for a direct flight) is $0.24, which is below average.


Flight Prices by Day of the Week

Friday is usually the cheapest day to fly to LGA, and Monday the cheapest day to fly back into REP. Thursdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $924 (27%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Friday and returning a week later will cost an average of $2446. Return trip prices are from the LGA 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 LGA can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 16 hour 37 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from REP to LGA while comparing.

Destination alternative #1: John F. Kennedy International Airport (JFK) in New York, NY

  • 11 miles (18 km) away from LGA
  • Usually 70.16% less expensive than LGA
  • 1-layover flights available

See REP to JFK flights

Destination alternative #2: Philadelphia International Airport (PHL) in Philadelphia, PA

  • 95 miles (153 km) away from LGA
  • Usually 58.14% less expensive than LGA
  • 2-layover flights available

See REP to PHL flights

Destination alternative #3: Newark Liberty International Airport (EWR) in Newark, NJ

  • 17 miles (27 km) away from LGA
  • Usually 43.60% less expensive than LGA
  • 1-layover flights available

See REP to EWR flights


Flight Hacking REP to LGA

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 LGA — but Champion Traveler does!

Hack #1: Shanghai (REP > PVG > LGA)

  • Price for both tickets: $1037
  • Average savings: $2298 (68.91%)

See REP to HKG flights

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

  • Price for both tickets: $1064
  • Average savings: $2272 (68.11%)

See REP to PVG flights

Hack #3: Kuala Lumpur (REP > KUL > LGA)

  • Price for both tickets: $1099
  • Average savings: $2236 (67.05%)

See REP to KUL flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 12 major airlines flying this route most often: Air Canada, Air France, American, Asiana, British Airways, China Southern, Delta, JAL, United, Vietnam Airlines, WestJet, Xiamen, and potentially more during busy seasons.

How far away is it from LaGuardia Airport to Siem Reap International Airport?

The distance between the two airports is roughly 8688 miles or 13982 kilometers.

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

The real-world flight time for a nonstop REP to LGA flight is about 16 hour 37 minutes.

How many flights go between Siem Reap and New York, NY?

It depends on the day of the week and the date, but a typical day might have around 12 available flights from REP to LGA.


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 LGA
Destination airport name LaGuardia Airport
City New York, NY
Country the United States
Latitude 40.8
Longitude -73.9


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.