Cheap flights from Belfast to Phnom Penh
Cheap return flights from Belfast to Phnom Penh
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Phnom Penh flight facts
What you need to know
What are the cheapest airlines?
- AirAsia
- Vietnam Airlines
- Qatar Airways
These airlines usually offer the cheapest flights from Belfast to Phnom Penh.
What airlines fly indirectly?
- Emirates
- Turkish Airlines
- Singapore Airlines
These airlines fly from Belfast to Phnom Penh, but you’ll have at least one layover.
How long is the flight?
18 hours 30 minutes
This is the shortest flight time from Belfast to Phnom Penh.
Alternative flights from the UK to Phnom Penh
Check out prices for other routes
Alternative flights from Belfast
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Belfast/Phnom Penh route. There are around 35 flights on any given week from the UK to Phnom Penh and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Belfast to Phnom Penh
Tips and advice from our flight experts
You've searched for flights from Belfast to Phnom Penh. We've found 25 flights and compared them to give you the best offer. On average, AirAsia is the cheapest for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for the route Belfast to Phnom Penh on 06/02/2026 at 04:00 for £49.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 10,000 km flight from Belfast to Phnom Penh.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. AirAsia is a popular and budget-friendly option for this route, with an average flight duration of 18 hours 30 minutes. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to book everything at once, saving you time and money.
Other popular destinations near Phnom Penh
Where other people are flying to
