Cheap flights from London Gatwick Airport to Phnom Penh from £402

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — PNH
8 Sep — 15 Sep1
1 adult

Cheap flight deals from Gatwick to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 September 2025.

Round-trip from

£701

One-way from

£402

Popular in

July

Cheapest in

September

Average price

£447
16/10-23/10
  • 16/10-23/10
  • 5 total stops
  • 59h 25m total
  • London to Phnom Penh
10/10
  • 10/10
  • 3 total stops
  • 51h 10m total
  • London to Phnom Penh
Highest demand for flights based on searches. 11% potential increase in price (£69 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Gatwick to Phnom Penh

Cheapest flights from Gatwick to Phnom Penh
Explore the most affordable flight options available from Gatwick to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2025.

Thu 4/911:35LGW - PNH
1 stop29h 40mChina Eastern
Sun 7/900:10PNH - LGW
1 stop21h 00mChina Eastern
Deal found 1/9£544
Thu 16/1008:10LGW - PNH
3 stops40h 45mMultiple Airlines
Thu 23/1008:30PNH - LGW
2 stops18h 40mMultiple Airlines
Deal found 1/9£701
Fri 28/1114:50LGW - PNH
2 stops20h 35mMultiple Airlines
Tue 9/1219:50PNH - LGW
2 stops27h 50mMultiple Airlines
Deal found 1/9£738
Tue 11/1114:50LGW - PNH
3 stops44h 35mMultiple Airlines
Tue 25/1107:55PNH - LGW
3 stops31h 25mMultiple Airlines
Deal found 1/9£747
Thu 4/914:30LGW - PNH
2 stops20h 05mMultiple Airlines
Sun 7/900:10PNH - LGW
1 stop21h 00mMultiple Airlines
Deal found 1/9£757
Sat 6/914:55LGW - PNH
2 stops18h 35mMultiple Airlines
Mon 6/1008:30PNH - LGW
3 stops29h 50mMultiple Airlines
Deal found 31/8£777

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to Phnom Penh 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, Cheapflights users made 858,174 searches. Data last updated 3 September 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Phnom Penh that are best for you.

Fly from

Gatwick

Fly to

Phnom Penh

Route

Depart

Return

Price

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Thu 16/10

08:10-06:55

3 stops40h 45m

Phnom Penh Pochentong

Thu 23/10

08:30-21:10

2 stops18h 40m

£701

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Tue 25/11

09:50-18:25

3 stops49h 35m

Phnom Penh Pochentong

Tue 2/12

07:55-09:10

3 stops32h 15m

£701

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Tue 11/11

14:50-18:25

3 stops44h 35m

Phnom Penh Pochentong

Tue 25/11

07:55-21:35

2 stops20h 40m

£738

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 28/11

14:50-18:25

2 stops20h 35m

Phnom Penh Pochentong

Tue 9/12

19:50-16:40

2 stops27h 50m

£738

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 6/2

10:05-14:40

2 stops21h 35m

Phnom Penh Pochentong

Mon 23/2

19:15-09:10

2 stops20h 55m

£742

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 14/11

14:25-18:25

2 stops21h 00m

Phnom Penh Pochentong

Fri 19/12

07:55-22:30

2 stops21h 35m

£760

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 10/10

21:45-06:55

3 stops51h 10m

£402

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Thu 11/12

21:05-18:25

3 stops38h 20m

£412

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 12/12

07:00-18:25

2 stops28h 25m

£421

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Sun 21/9

11:35-11:10

2 stops41h 35m

£429

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 14 results
1
2

Best time to book a flight from Gatwick to Phnom Penh

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

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Phnom Penh

What is the cheapest month to book a flight from London Gatwick Airport to Phnom Penh?

Currently, September is the cheapest month in which you can book a flight from London Gatwick Airport to Phnom Penh (average of £689). Flying from London Gatwick Airport to Phnom Penh in July is currently the most expensive (average of £1,232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LGW to PNH?

Find hourly flight availability from Gatwick to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 September 2025.

A simple way to save on the total cost of your ticket is to fly from London Gatwick Airport to Phnom Penh in the afternoon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight at midday.

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated 3 September 2025.
Read reviews from past customers who have flown with Emirates, Singapore Airlines, andChina Southern from London Gatwick Airport to Phnom Penh. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Overall

8.1

Boarding

8.1

Entertainment

8.2

Food

7.9

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Muhammed,Jun 2025

DXB - DUR

Amazing. Not bad at all. Wish all my flights are like this

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Phnom Penh from London Gatwick?

    Most people fly into Phnom Penh Pochentong (PNH) if they book a flight to Phnom Penh from London Gatwick. On average, Pochentong has 0 inbound flights from London Gatwick per day from 6 airlines. Phnom Penh Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.

  • What are the cheapest airlines flying from London Gatwick Airport to Phnom Penh round-trip?

    Currently priced at £362, China Southern will fly you from London Gatwick Airport to Phnom Penh and back. In addition to China Southern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Eastern and Singapore Airlines - these airlines can fly you to your destination from £512 and £565, respectively. Users have found that China Southern is 50% cheaper than the other options available to this destination.

  • Can I find deals for flights from Gatwick to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Gatwick to Phnom Penh flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Phnom Penh.

  • Can I find deals for business class flights from Gatwick to Phnom Penh?

    Yes. Cheapflights offers flight deals from Gatwick to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Gatwick Airport to Phnom Penh?

    Currently, September is the cheapest month in which you can book a flight from London Gatwick Airport to Phnom Penh (average of £689). Flying from London Gatwick Airport to Phnom Penh in July is currently the most expensive (average of £1,232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Gatwick to Phnom Penh

Discover the top 6 airlines that operate flights from Gatwick to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 September 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£362Average£398FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£512Average£551FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Singapore AirlinesCheapest£565Average£702FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
British AirwaysCheapest£697Average£757FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Qatar AirwaysCheapest£719Average£757FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
EmiratesCheapest£725Average£811FlexibilityNo cancel feeOn-time75%
Search Emirates flights

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Gatwick to Phnom Penh.

Can Cheapflights find flights from Gatwick to Phnom Penh with no change fees?

Need flexible booking options for your flight to Phnom Penh from Gatwick? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Gatwick to Phnom Penh become cheaper?

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