Cheap flights from Belfast to Kos
Cheap return flights from Belfast to Kos
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Kos flight facts
What you need to know
What are the cheapest airlines?
- Ryanair
- easyJet
- Jet2
These airlines usually offer the cheapest flights from Belfast to Kos.
What airlines fly indirectly?
- British Airways
- Lufthansa
- KLM
These airlines fly from Belfast to Kos, but you’ll have at least one layover.
How long is the flight?
3 hours 45 minutes
This is the shortest flight time from Belfast to Kos.
Alternative flights from the UK to Kos
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/Kos route. There are around 35 flights on any given week from the UK to Kos 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 Kos
Tips and advice from our flight experts
You've searched for flights from Belfast to Kos. We've found 15 flights and compared them to give you the best offers. Ryanair is the average cheapest airline for this route, so look out for their deals. The cheapest offer we've found is a one-way ticket for £74 from Belfast to Kos on 23/01/2026 at 08:40.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 5 airlines that operate the 2,800 km flight from Belfast to Kos.
To find the best offers, book in advance, especially during peak seasons. Consider flying with Ryanair, which is popular for this route. The average flight duration is about 3 hours 45 minutes. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to save time and money!
Other popular destinations near Kos
Where other people are flying to
