Cheap flights from London-Heathrow to Killarney
Cheap return flights from London-Heathrow to Killarney
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Killarney flight facts
What you need to know
What are the cheapest airlines?
- Ryanair
- British Airways
- Aer Lingus
These airlines usually offer the cheapest flights from London-Heathrow to Killarney.
What airlines fly indirectly?
- KLM
- Lufthansa
- Air France
These airlines fly from London-Heathrow to Killarney, but you’ll have at least one layover.
How long is the flight?
1 hour 45 minutes
This is the shortest flight time from London-Heathrow to Killarney.
Alternative flights from the UK to Killarney
Check out prices for other routes
Alternative flights from London-Heathrow
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 London-Heathrow/Killarney route. There are around 35 flights on any given week from the UK to Killarney 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 London-Heathrow to Killarney
Tips and advice from our flight experts
You've searched for flights from London-Heathrow to Killarney. We've found 15 flights and compared them to give you the best offer. Ryanair is, on average, the cheapest airline for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for the route from London-Heathrow to Killarney on 04/03/2026 at 21:05 for £60.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 8 airlines that operate the 800 km flight from London-Heathrow to Killarney.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Ryanair is a popular and affordable option for this route, with an average flight duration of 1 hour 45 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 Killarney
Where other people are flying to
