Book a trip from London to Phnom Penh with Cathay Pacific , fares from GBP865
Direct flights from London with three cabin classes to match your style, your Phnom Penh adventure starts from GBP865
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1 Passenger(s), Economy
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Deals on London (LHR) to Phnom Penh (PNH) flights
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Book flights to Phnom Penh PNH
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From | To | Fare Type | Dates | Price | |
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London (LHR) | Phnom Penh (KTI) | Round-trip / Economy | 18/02/2026 - 12/05/2026 | From GBP865 Seen 5 hours ago | |
London (LHR) | Phnom Penh (KTI) | Round-trip / Economy | 23/11/2025 - 01/12/2025 | From GBP881 Seen 1 day ago | |
London (LHR) | Phnom Penh (KTI) | Round-trip / Economy | 28/12/2025 - 16/01/2026 | From GBP930 Seen 1 day ago | |
London (LHR) | Phnom Penh (KTI) | Round-trip / Economy | 15/12/2025 - 09/01/2026 | From GBP1,251 Seen 6 hours ago | |
London (LHR) | Phnom Penh (KTI) | Round-trip / Economy | 10/10/2025 - 17/10/2025 | From GBP1,297 Seen 19 hours ago |
Book Business Class flights to Phnom Penh - selected offers
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There are no fares that match your filter criteria. Please adjust your filters.*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.
Travel to Phnom Penh in Premium Economy
Best fares on flights found by others in the last 48 hours. (Please note that some fares may only apply when there are multiple travellers.)