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Cheap flights from Phnom Penh to London from £261

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phnom Penh to London departing on 16/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Phnom Penh to London

Cheap return flights

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08:30 - 22:15PNH-LGW
19h 45m2 stops
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16:50 - 06:55LGW-PNH
32h 05m3 stops
£687
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Thu, 9 Oct - Sun, 19 Oct
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08:30 - 08:15PNH-LGW
29h 45m3 stops
Logo
21:50 - 06:55LGW-PNH
27h 05m2 stops
£689
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Sat, 4 Oct - Sun, 12 Oct
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08:30 - 22:35PNH-LGW
20h 05m2 stops
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21:50 - 06:55LGW-PNH
27h 05m2 stops
£698
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Thu, 9 Oct - Sun, 19 Oct
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08:30 - 08:30PNH-LGW
30h 00m2 stops
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21:50 - 06:55LGW-PNH
27h 05m2 stops
£702
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Sat, 4 Oct - Sun, 12 Oct
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08:30 - 08:20PNH-LGW
29h 50m3 stops
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20:20 - 06:55LGW-PNH
28h 35m2 stops
£731
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Thu, 9 Oct - Sun, 19 Oct
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08:30 - 22:35PNH-LGW
20h 05m2 stops
Logo
20:20 - 06:55LGW-PNH
28h 35m2 stops
£783
Find Deal
Thu, 9 Oct - Sun, 19 Oct
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08:30 - 22:35PNH-LGW
20h 05m2 stops
Logo
05:20 - 06:55LGW-PNH
19h 35m2 stops
£799
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Thu, 9 Oct - Wed, 15 Oct
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08:30 - 08:30PNH-LGW
30h 00m3 stops
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10:55 - 06:55LGW-PNH
38h 00m3 stops
£810
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Sat, 4 Oct - Sun, 12 Oct
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08:30 - 10:50PNH-LGW
32h 20m3 stops
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12:40 - 06:30LGW-PNH
34h 50m2 stops
£1,050
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Sat, 25 Oct - Sat, 1 Nov
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08:30 - 12:35PNH-LGW
34h 05m3 stops
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20:55 - 06:55LGW-PNH
28h 00m3 stops
£1,096
Find Deal
Thu, 9 Oct - Sun, 19 Oct

momondo Fare Finder

 
Customise your flight search to find flights from Phnom Penh to London Gatwick Airport 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, momondo users made 279,928 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Phnom Penh to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 9/10

08:30-22:15

2 stops19h 45m

London Gatwick

Sun 19/10

16:50-06:55

3 stops32h 05m

£687

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Sat 4/10

08:30-08:15

3 stops29h 45m

London Gatwick

Sun 12/10

21:50-06:55

2 stops27h 05m

£689

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 9/10

08:30-22:35

2 stops20h 05m

London Gatwick

Sun 19/10

21:50-06:55

2 stops27h 05m

£698

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Sat 4/10

08:30-08:30

2 stops30h 00m

London Gatwick

Sun 12/10

21:50-06:55

2 stops27h 05m

£702

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 9/10

08:30-08:20

3 stops29h 50m

London Gatwick

Sun 19/10

20:20-06:55

2 stops28h 35m

£731

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 9/10

08:30-22:35

2 stops20h 05m

London Gatwick

Sun 19/10

20:20-06:55

2 stops28h 35m

£783

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 9/10

08:30-22:35

2 stops20h 05m

London Gatwick

Wed 15/10

05:20-06:55

2 stops19h 35m

£799

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Sat 4/10

08:30-08:30

3 stops30h 00m

London Gatwick

Sun 12/10

10:55-06:55

3 stops38h 00m

£810

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Sat 25/10

08:30-10:50

3 stops32h 20m

London Gatwick

Sat 1/11

12:40-06:30

2 stops34h 50m

£1,050

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 9/10

08:30-12:35

3 stops34h 05m

London Gatwick

Sun 19/10

20:55-06:55

3 stops28h 00m

£1,096

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Phnom Penh to London Gatwick Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Phnom Penh to London Gatwick Airport flights?

You could potentially save up to 24% on your flight if you consider stops on a Phnom Penh to London Gatwick Airport flight.

When to book flights from Phnom Penh to London Gatwick Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Phnom Penh to London Gatwick Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Phnom Penh to London Gatwick Airport (PNH to LGW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phnom Penh to London Gatwick Airport

Direct flights

None
There are no direct flights from Phnom Penh to London Gatwick Airport. There are no popular flight routes from Phnom Penh to London Gatwick Airport.
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  • How far is Phnom Penh Pochentong to London Gatwick by plane?

    Phnom Penh Pochentong and London Gatwick are 6229.5 mi apart from one another. Typically, this will take 19h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Phnom Penh Pochentong Airport to London Gatwick Airport?

    Prices for flights from Phnom Penh Pochentong Airport to London Gatwick Airport were last updated today.

  • How old do you have to be to fly from Phnom Penh Pochentong Airport to London Gatwick Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phnom Penh Pochentong Airport to London Gatwick Airport.

  • What documentation or ID do you need to fly to London Gatwick Airport?

    The necessary travel and health documents for your London Gatwick Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Phnom Penh to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Phnom Penh to London. momondo saves you time and could save you money on your trip.

Can I find flights from Phnom Penh to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Phnom Penh which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Phnom Penh to London?

Once all potential Phnom Penh to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Phnom Penh to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Phnom Penh are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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