The cheapest times to fly from EWR to KOS are
- April 2nd to April 29th (except the week of April 9th)
- May 14th to June 17th (except the week of June 4th)
- October 29th to March 18th (except the week of December 3rd)
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 EWR to KOS is late October to early November. Prices can be as high as $14200 for Wednesday flights during early October, or as low as $1755 for Tuesday flights around late October to early November.
When to Fly to Sihanoukville
Flying from Newark, NJ (EWR) to Kompongsom (KOS) will usually cost between $2836 to $10800 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October to early November with an average ticket price of $4257. Due to high demand the most expensive time to fly is early October, with an average price of $8706. Planning your trip to low-cost times can easily save you $4449 on economy flights and even more on first-class flights. Generally, any price below $5576 can be considered a good price for a round-trip EWR to KOS flight.
See below for a graph of average weekly prices for the EWR to KOS route. All prices are for round-trip tickets in USD.
Compared to other flights, the EWR to KOS flight is more expensive than the average and costs more than the average flight leaving from Newark. The average price per mile (for a direct flight) is $0.39, which is a bit above average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to fly to KOS, and Sunday the cheapest day to fly back into EWR. Wednesdays are the most expensive days to fly to Sihanoukville, and Saturdays are the most expensive days to return to Newark. Selecting flights on the least expensive days could save you up to $5296 (52%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $4648. Return trip prices are from the KOS to EWR flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from EWR to KOS 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 59 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 EWR to KOS while comparing.
- 102 miles (164 km) away from KOS
- Usually 83.28% less expensive than KOS
- 1-layover flights available
- 148 miles (238 km) away from KOS
- Usually 74.03% less expensive than KOS
- 2-layover flights available
- 36 miles (58 km) away from KOS
- Usually 73.19% less expensive than KOS
- 2-layover flights available
Flight Hacking EWR to KOS
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 EWR to KOS — but Champion Traveler does!
- Price for both tickets: $915
- Average savings: $4661 (83.59%)
- Price for both tickets: $1121
- Average savings: $4455 (79.9%)
- Price for both tickets: $1253
- Average savings: $4323 (77.54%)
Flight Questions Answered
Still have questions about flying from EWR to KOS? We’ve got answers.
Which airlines fly this route?
You can find 20 major airlines flying this route most often: Air Canada, Alaska, ANA, British Airways, Brussels Airlines, Cathay Dragon, Cathay Pacific, China Southern, Delta, Emirates, EVA Air, Finnair, Hainan, JAL, KLM, Shenzhen, Sichuan Airlines, United, Vietnam Airlines, Xiamen, and potentially more during busy seasons.
How far away is it from Kompongsom Airport to Newark Liberty International Airport?
The distance between the two airports is roughly 8888 miles or 14304 kilometers.
How long does it take to fly from EWR to KOS?
The real-world flight time for a nonstop EWR to KOS flight is about 16 hour 59 minutes.
How many flights go between Newark, NJ and Kompongsom?
It depends on the day of the week and the date, but a typical day might have around 10 available flights from EWR to KOS.
Airport Location Info
|Origination airport name||Newark Liberty International Airport|
|Country||the United States|
|Destination airport name||Kompongsom Airport|
Flights to KOS
Flights from KOS
Flights to EWR
Flights from EWR
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.