If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 25.0 C).

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 250.0 mm per month. October is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 mm.

Direct flights to Phnom Penh

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Enter your travel dates to find the best prices.

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Best

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One-way

Cheapest flights to Phnom Penh
Explore the most affordable flight options available to Phnom Penh. Find the lowest fares based on data from user searches, with prices last updated on 5 September 2026.

Thu 24-912:25 -

Nonstop2h 40m

Mon 5-1007:45 -

Nonstop2h 40m

Deal found 4-9HK$1,874

Thu 24-912:25 -

Nonstop2h 40m

Sun 4-1007:45 -

Nonstop2h 40m

Deal found 2-9HK$1,897

Mon 19-1012:25 -

Nonstop2h 40m

Mon 26-1007:45 -

Nonstop2h 45m

Deal found 2-9HK$2,054

Fri 11-1212:30 -

Nonstop2h 35m

Thu 31-1207:45 -

Nonstop2h 45m

Deal found 3-9HK$2,086

Sun 1-1112:30 -

Nonstop2h 35m

Wed 4-1107:45 -

Nonstop2h 45m

Deal found 4-9HK$2,117

Thu 17-912:25 -

Nonstop2h 40m

Sun 27-918:30 -

Nonstop2h 45m

Deal found 5-9HK$2,133

Wed 30-1212:30 -

Nonstop2h 35m

Tue 5-107:45 -

Nonstop2h 45m

Deal found 5-9HK$2,140

Tue 1-1212:30 -

Nonstop2h 35m

Thu 3-1207:45 -

Nonstop2h 45m

Deal found 2-9HK$2,187

Wed 2-1212:30 -

Nonstop2h 35m

Fri 4-1207:45 -

Nonstop2h 45m

Deal found 2-9HK$2,195

Sun 4-1012:25 -

Nonstop2h 40m

Sun 11-1007:45 -

Nonstop2h 40m

Deal found 4-9HK$2,211

Best time to book a flight to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh with our price prediction graph.

HKG-KTI

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Sat 12-9

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$957

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Wed 23-9

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$996

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Thu 10-9

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,027

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 15-9

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,035

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 20-10

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,090

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 6-10

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,106

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 19-10

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,168

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 29-9

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,239

Fastest return journey

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 9-11

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,239

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Fri 13-11

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,247

Flights are sorted by cheapest return flights first.

Deals found on 2-9

Showing 1-10 of 23 resultsSorted by cheapest first

Reviews of airlines flying non-stop to Phnom Penh

Check out reviews from past customers who have flown Cathay Pacific to Cambodia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Cathay Pacific

7.6

Good

1,471 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Cathay Pacific

7.6

Good

1,471 reviews

Cathay Pacific

7.6

Good

1,471 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jan 2026

HKG - CTS

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This is the cheapest price on a non-stop flight to Phnom Penh found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12-9. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals to Phnom Penh

Cheapest flights to Phnom Penh
Explore the most affordable flight options available to Phnom Penh. Find the lowest fares based on data from user searches, with prices last updated on 5 September 2026.

Explore the most affordable flight options available to Phnom Penh. Find the lowest fares based on data from user searches, with prices last updated on 5 September 2026.

Best flights to Phnom Penh
Discover carefully curated flight deals to Phnom Penh that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Discover carefully curated flight deals to Phnom Penh that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights to Phnom Penh
Discover last-minute flight deals to Phnom Penh. Data last updated 5 September 2026 and is based on user searches.

Discover last-minute flight deals to Phnom Penh. Data last updated 5 September 2026 and is based on user searches.

One-way flights to Phnom Penh
Search for one-way flight options to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Search for one-way flight options to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Best time to book a flight to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh with our price prediction graph.

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Use the filters below to find and compare direct flights to Phnom Penh that are best for you.

Reviews of airlines flying non-stop to Phnom Penh

Check out reviews from past customers who have flown Cathay Pacific to Cambodia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights to Asia

Book a non-stop flight to one of these popular destinations located in Asia.

Airlines flying direct to Phnom Penh

Consider these flights with airlines flying direct to Phnom Penh.

Direct flights from Cambodia

Consider flying direct from one of these origins located in Cambodia.

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HK$957+ Direct flights to Phnom Penh

This is the cheapest price on a non-stop flight to Phnom Penh found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12-9. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals to Phnom Penh

Cheapest flights to Phnom PenhExplore the most affordable flight options available to Phnom Penh. Find the lowest fares based on data from user searches, with prices last updated on 5 September 2026.

Explore the most affordable flight options available to Phnom Penh. Find the lowest fares based on data from user searches, with prices last updated on 5 September 2026.

Best flights to Phnom PenhDiscover carefully curated flight deals to Phnom Penh that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Discover carefully curated flight deals to Phnom Penh that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights to Phnom PenhDiscover last-minute flight deals to Phnom Penh. Data last updated 5 September 2026 and is based on user searches.

Discover last-minute flight deals to Phnom Penh. Data last updated 5 September 2026 and is based on user searches.

One-way flights to Phnom PenhSearch for one-way flight options to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Search for one-way flight options to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Best time to book a flight to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh with our price prediction graph.

Cheapflights Fare Finder

Use the filters below to find and compare direct flights to Phnom Penh that are best for you.

Reviews of airlines flying non-stop to Phnom Penh

Check out reviews from past customers who have flown Cathay Pacific to Cambodia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights to Asia

Book a non-stop flight to one of these popular destinations located in Asia.

Airlines flying direct to Phnom Penh

Consider these flights with airlines flying direct to Phnom Penh.

Direct flights from Cambodia

Consider flying direct from one of these origins located in Cambodia.

100% Free

Book With Flexibility

Travel Smart

Cheapest flights to Phnom Penh
Explore the most affordable flight options available to Phnom Penh. Find the lowest fares based on data from user searches, with prices last updated on 5 September 2026.

Best flights to Phnom Penh
Discover carefully curated flight deals to Phnom Penh that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights to Phnom Penh
Discover last-minute flight deals to Phnom Penh. Data last updated 5 September 2026 and is based on user searches.

One-way flights to Phnom Penh
Search for one-way flight options to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.