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Flights to Phnom Penh Techo Intl

£253 Cheap flights to Phnom Penh

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from the United Kingdom to Phnom Penh

Cheap return flights

Enter your travel dates to find the best prices.
Air China Logo
17:45 - 23:10LHR  London Heathrow-KTI Phnom Penh Techo Intl
22h 25m1 stop Beijing Capital
Air China Logo
00:25 - 17:50KTI  Phnom Penh Techo Intl-LHR London Heathrow
24h 25m1 stop Beijing Capital
£412Air China
Sat, 5 Dec - Tue, 15 Dec
China Southern Logo
09:50 - 10:50LGW  London Gatwick-KTI Phnom Penh Techo Intl
18h 00m1 stop Guangzhou Baiyun
China Southern Logo
16:10 - 06:30KTI  Phnom Penh Techo Intl-LGW London Gatwick
21h 20m1 stop Guangzhou Baiyun
£412China Southern
Wed, 4 Nov - Sun, 8 Nov
China Southern Logo
22:00 - 23:30LHR  London Heathrow-KTI Phnom Penh Techo Intl
18h 30m1 stop Guangzhou Baiyun
China Southern Logo
11:55 - 18:35KTI  Phnom Penh Techo Intl-LHR London Heathrow
37h 40m1 stop Guangzhou Baiyun
£413China Southern
Tue, 10 Nov - Tue, 24 Nov
Air China Logo
17:45 - 23:10LHR  London Heathrow-KTI Phnom Penh Techo Intl
22h 25m1 stop Beijing Capital
Air China Logo
00:25 - 17:50KTI  Phnom Penh Techo Intl-LHR London Heathrow
24h 25m1 stop Beijing Capital
£427Air China
Fri, 19 Feb - Thu, 4 Mar
XiamenAir Logo
16:05 - 17:05LHR  London Heathrow-KTI Phnom Penh Techo Intl
18h 00m1 stop Xiamen Gaoqi Intl
XiamenAir Logo
18:10 - 14:10KTI  Phnom Penh Techo Intl-LHR London Heathrow
27h 00m1 stop Xiamen Gaoqi Intl
£430XiamenAir
Fri, 6 Nov - Sat, 21 Nov
Shenzhen Airlines Logo
21:10 - 10:40LHR  London Heathrow-KTI Phnom Penh Techo Intl
30h 30m1 stop Shenzhen
Shenzhen Airlines Logo
11:40 - 19:10KTI  Phnom Penh Techo Intl-LHR London Heathrow
38h 30m1 stop Shenzhen
£437Shenzhen Airlines
Fri, 30 Oct - Fri, 6 Nov
Shenzhen Airlines Logo
21:10 - 10:40LHR  London Heathrow-KTI Phnom Penh Techo Intl
30h 30m1 stop Shenzhen
Shenzhen Airlines Logo
11:40 - 19:10KTI  Phnom Penh Techo Intl-LHR London Heathrow
38h 30m1 stop Shenzhen
£437Shenzhen Airlines
Sat, 14 Nov - Sat, 28 Nov
XiamenAir Logo
16:05 - 17:05LHR  London Heathrow-KTI Phnom Penh Techo Intl
18h 00m1 stop Xiamen Gaoqi Intl
XiamenAir Logo
18:10 - 14:10KTI  Phnom Penh Techo Intl-LHR London Heathrow
27h 00m1 stop Xiamen Gaoqi Intl
£461XiamenAir
Wed, 28 Oct - Tue, 10 Nov
Etihad Airways Logo
19:35 - 18:20MAN  Manchester-KTI Phnom Penh Techo Intl
15h 45m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
07:55 - 11:55KTI  Phnom Penh Techo Intl-MAN Manchester
35h 00m1 stop Abu Dhabi Zayed Intl
£562Etihad Airways
Mon, 2 Nov - Mon, 30 Nov
Etihad Airways Logo
19:35 - 18:20MAN  Manchester-KTI Phnom Penh Techo Intl
15h 45m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
07:55 - 06:15KTI  Phnom Penh Techo Intl-MAN Manchester
29h 20m1 stop Abu Dhabi Zayed Intl
£563Etihad Airways
Wed, 28 Oct - Tue, 17 Nov

momondo Fare Finder

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

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Sat 5/12

17:45-23:10

1 stop22h 25m

Phnom Penh Techo Intl

Tue 15/12

00:25-17:50

1 stop24h 25m

£412
Fastest return journey

LondonPhnom Penh

LGW London Gatwick - KTI Phnom Penh Techo Intl

LGWKTI

London Gatwick

Wed 4/11

09:50-10:50

1 stop18h 00m

Phnom Penh Techo Intl

Sun 8/11

16:10-06:30

1 stop21h 20m

£412

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Tue 10/11

22:00-23:30

1 stop18h 30m

Phnom Penh Techo Intl

Tue 24/11

11:55-18:35

1 stop37h 40m

£413

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Fri 19/2

17:45-23:10

1 stop22h 25m

Phnom Penh Techo Intl

Thu 4/3

00:25-17:50

1 stop24h 25m

£427

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Fri 6/11

16:05-17:05

1 stop18h 00m

Phnom Penh Techo Intl

Sat 21/11

18:10-14:10

1 stop27h 00m

£430

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Fri 30/10

21:10-10:40

1 stop30h 30m

Phnom Penh Techo Intl

Fri 6/11

11:40-19:10

1 stop38h 30m

£437

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Sat 14/11

21:10-10:40

1 stop30h 30m

Phnom Penh Techo Intl

Sat 28/11

11:40-19:10

1 stop38h 30m

£437

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Wed 28/10

16:05-17:05

1 stop18h 00m

Phnom Penh Techo Intl

Tue 10/11

18:10-14:10

1 stop27h 00m

£461

ManchesterPhnom Penh

MAN Manchester - KTI Phnom Penh Techo Intl

MANKTI

Manchester

Mon 2/11

19:35-18:20

1 stop15h 45m

Phnom Penh Techo Intl

Mon 30/11

07:55-11:55

1 stop35h 00m

£562

ManchesterPhnom Penh

MAN Manchester - KTI Phnom Penh Techo Intl

MANKTI

Manchester

Wed 28/10

19:35-18:20

1 stop15h 45m

Phnom Penh Techo Intl

Tue 17/11

07:55-06:15

1 stop29h 20m

£563

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Phnom Penh flights insights and trends

Explore insights for your Phnom Penh flight to craft the best travel plan

What is the cheapest month to fly to Phnom Penh?

The month of May is another great option to travel to Phnom Penh, with average flight prices from United Kingdom averaging around £601.

How far in advance should I book a flight to Phnom Penh?

You are more likely to see cheaper flights to Phnom Penh from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around £759 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from United Kingdom for as low as £599 on momondo.

Cheapest flights to Phnom Penh Techo Intl

Find the cheapest flights to Phnom Penh Techo Intl from your nearest city or airport
Find flights from London Heathrow Airport to Phnom Penh
CHEAPEST MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTJune19% cheaperFlying from London Heathrow Airport to Phnom Penh costs on average just £615 in June
MOST EXPENSIVE MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTJuly31% more expensiveIt costs about £999 for flights to Phnom Penh from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTDecember542% more users visitedMore momondo users searched in flights to Phnom Penh from London Heathrow Airport in December than any other month

Cheap Phnom Penh flight deals and tips

Summary info about Phnom Penh flight prices, duration and airlines

Best One-Way Price

£253

Best Round-Trip Price

£412

Fastest flight time

29h 10m

Popular in

July
The best one-way flight price to Phnom Penh from United Kingdom in the last 5 days is £253 (London Heathrow to Phnom Penh Techo Intl).
Search Deals
The best return flight price to Phnom Penh from United Kingdom in the last 5 days is £412 (London Gatwick to Phnom Penh Techo Intl).
Search Deals
The fastest flight to Phnom Penh from United Kingdom takes 29h 10m (London Heathrow to Phnom Penh Techo Intl).
Search Deals
July has the highest demand for flights to Phnom Penh, with a 11% price increase on average.
Search Deals

Frequently asked questions about flying to Phnom Penh

How far in advance should I book a flight to Phnom Penh?

The best time to book a flight to Phnom Penh from United Kingdom is 20 days out, which is when prices tend to be around £709. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as £394.

When did momondo last update prices for flights to Phnom Penh Techo Intl Airport?

Prices for flights to Phnom Penh Techo Intl Airport refresh daily.

How many operators does momondo search for flights to Phnom Penh Techo Intl Airport?

There are 17 operators available for flights to Phnom Penh Techo Intl Airport as of October 2026.

How old do you have to be to fly to Phnom Penh Techo Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Phnom Penh Techo Intl Airport.

What documentation or ID do you need to fly to Phnom Penh Techo Intl Airport?

The required travel and health documents for your Phnom Penh Techo Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Phnom Penh Techo Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

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

All flight searches to Phnom Penh on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Phnom Penh?

Once all potential Phnom Penh 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 to Phnom Penh right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Phnom Penh, momondo offers a useful price alert feature which will track prices for flights to Phnom Penh and alert you when they change.

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