Cheap flights from London-Heathrow to Istanbul
Cheap return flights from London-Heathrow to Istanbul
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Istanbul flight facts
What you need to know
What are the cheapest airlines?
- Pegasus Airlines
- Turkish Airlines
- British Airways
These airlines usually offer the cheapest flights from London-Heathrow to Istanbul.
What airlines fly indirectly?
- Lufthansa
- Air France
- KLM
These airlines fly from London-Heathrow to Istanbul, but you’ll have at least one layover.
How long is the flight?
3 hours 50 minutes
This is the shortest flight time from London-Heathrow to Istanbul.
Alternative flights from the UK to Istanbul
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/Istanbul route. There are around 35 flights on any given week from the UK to Istanbul 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 Istanbul
Tips and advice from our flight experts
You've searched for flights from London-Heathrow to Istanbul. We've found 25 flights and compared them to give you the best offers. Pegasus Airlines is, on average, the cheapest for this route. Look out for them! The cheapest offer we've found is a one-way ticket for the route from London-Heathrow to Istanbul on 03/06/2026 at 10:55 for £72.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 2,500 km flight from London-Heathrow to Istanbul.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Try Pegasus Airlines for budget-friendly options. The average flight duration is about 3 hours 50 minutes. After selecting an offer, fill out your information, proceed to payment, and consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Istanbul
Where other people are flying to
