Title: Cheap Flights from Phnom Penh (PNH) to London (LHR) - Expedia.ca ![](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Phnom Penh (PNH) to London (LHR) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Phnom Penh Intl. Airport (PNH) to Heathrow Airport (LHR) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:pnh,to:lhr,departure:25/10/2025TANYT&leg2=from:lhr,to:pnh,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:pnh,to:lhr,departure:25/10/2025TANYT&leg2=from:lhr,to:pnh,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:pnh,to:lhr,departure:25/10/2025TANYT&leg2=from:lhr,to:pnh,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:pnh,to:lhr,departure:25/10/2025TANYT&leg2=from:lhr,to:pnh,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:pnh,to:lhr,departure:25/10/2025TANYT&leg2=from:lhr,to:pnh,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:pnh,to:lhr,departure:25/10/2025TANYT&leg2=from:lhr,to:pnh,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:pnh,to:lhr,departure:25/10/2025TANYT&leg2=from:lhr,to:pnh,departure:01/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Find the cheapest month to fly from Phnom Penh (PNH) to London (LHR) ### March is typically the cheapest month to fly From CA $929 - CA $1,590 per traveller. ## Frequently asked questions ### How much is a flight from PNH to LHR? > Based on fares available within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Phnom Penh Airport to Heathrow Airport start from . Book now to score the best price for your exciting adventure. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Phnom Penh Intl. Airport (PNH) to London Heathrow? > When it comes to cancellation fees, each airline has different terms and conditions. If you decide to cancel your getaway, head to our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Phnom Penh Intl. Airport (PNH) to Heathrow Airport (LHR) that have flexible change policies? > Flights from Phnom Penh Airport to Heathrow Airport (LHR) offering flexible change policies are available with many airlines. Simply use our "No change fees" filter during your search. You'll only need to cover the cost difference between flights, with no additional fees to worry about. ### How many hours is the flight from Phnom Penh Airport to LHR? > To survive the 16 hours and 41 minutes flight time between Phnom Penh Airport and Heathrow Airport, it's smart to have a plan. A tablet filled with your favourite shows is an excellent start. ### How far is the flight from Phnom Penh Intl. Airport (PNH) to LHR? > You'll have 10,000 kilometres to cover on the long-haul Cambodia to Hounslow route. Wear comfy clothes and consider taking a pair of noise-cancelling headphones. ### Which airlines fly direct from Phnom Penh Airport to Heathrow Airport (LHR)? > If you want to travel straight from Phnom Penh Airport to London Heathrow, you'll have to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route. ### Are Phnom Penh Airport to LHR flight tickets cheaper when they're purchased at the last minute? > Last-minute planners can sometimes find a bargain, with some of the cheapest fares from Phnom Penh Intl. Airport (PNH) to LHR appearing a few weeks before the departure date. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines advertise prices so far in advance. ## Travel information | Origin airport | Phnom Penh Intl. | | --- | --- | | Destination airport | Heathrow | | Distance | 9976 km | ## Book with confidence ### Phnom Penh to London Flights **The easy way to book your flights from Phnom Penh to London**  With Expedia, it’s simple to find and book flights to London from Phnom Penh whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Heathrow, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Phnom Penh to London today, tomorrow, or this week.   **Save dollars with cheap flights from Phnom Penh Intl., PNH to Heathrow, LHR**  Sort your search results by price to find great deals on your flight from Phnom Penh to London—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to London from Phnom Penh currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to London   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to London from Phnom Penh**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to London with Expedia today. ## Explore a world of travel with Expedia - Flights - [Flights from Hanoi to Kingston Upon Thames](https://www.expedia.ca/lp/flights/1428/4380/hanoi-to-kingston-upon-thames) - [Flights from Atlanta to West London](https://www.expedia.ca/lp/flights/178232/6047457/atlanta-to-west-london) - [Flights from Atlanta to North London](https://www.expedia.ca/lp/flights/178232/6196832/atlanta-to-north-london) - [Flights from Auckland to Windsor](https://www.expedia.ca/lp/flights/178233/5479/auckland-to-windsor) - [Flights from Indianapolis to Windsor](https://www.expedia.ca/lp/flights/178266/5479/indianapolis-to-windsor) - [Flights from Sydney to Windsor](https://www.expedia.ca/lp/flights/178312/5479/sydney-to-windsor) - [Flights from Vancouver to Kingston Upon Thames](https://www.expedia.ca/lp/flights/178315/4380/vancouver-to-kingston-upon-thames) - [Flights from Vancouver to Windsor](https://www.expedia.ca/lp/flights/178315/5479/vancouver-to-windsor) - 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