LHR - IST

$122 Find Cheap Flights from London Heathrow Airport to Istanbul Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Istanbul departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Istanbul Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Istanbul, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Istanbul, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Heathrow to Istanbul (LHR-IST)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Istanbul that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Heathrow to Istanbul

Fri, Nov 21 - Sun, Nov 23
British Airways Logo
7:00 am - 1:55 pmLHR-IST
3h 55mnonstop
British Airways Logo
9:20 pm - 10:35 pmIST-LHR
4h 15mnonstop
$205British Airways
Find Deal
Fri, Dec 5 - Wed, Dec 17
British Airways Logo
6:15 pm - 1:10 amLHR-IST
3h 55mnonstop
British Airways Logo
7:35 am - 9:05 amIST-LHR
4h 30mnonstop
$206British Airways
Find Deal
Wed, Dec 3 - Sun, Dec 7
Air France Logo
8:55 am - 3:50 amLHR-IST
15h 55m1 stop
Air France Logo
4:50 am - 7:55 amIST-LHR
6h 05m1 stop
$210Air France
Find Deal
Mon, Dec 1 - Mon, Dec 8
Air France Logo
2:45 pm - 3:50 amLHR-IST
10h 05m1 stop
Air France Logo
4:50 am - 4:35 pmIST-LHR
14h 45m1 stop
$211Air France
Find Deal
Thu, Nov 27 - Tue, Dec 2
Turkish Airlines Logo
4:35 pm - 11:25 pmLHR-IST
3h 50mnonstop
Turkish Airlines Logo
1:50 pm - 2:55 pmIST-LHR
4h 05mnonstop
$216Turkish Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 5
Turkish Airlines Logo
6:35 am - 1:35 pmLHR-IST
4h 00mnonstop
Turkish Airlines Logo
9:25 pm - 10:25 pmIST-LHR
4h 00mnonstop
$217Turkish Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
KLM Logo
6:30 am - 4:55 pmLHR-IST
7h 25m1 stop
KLM Logo
5:55 pm - 8:50 pmIST-LHR
5h 55m1 stop
$222KLM
Find Deal
Sat, Dec 6 - Fri, Dec 12
KLM Logo
5:50 pm - 4:55 pmLHR-IST
20h 05m1 stop
KLM Logo
5:55 pm - 2:25 pmIST-LHR
23h 30m1 stop
$223KLM
Find Deal
Thu, Nov 13 - Thu, Nov 20
Aegean Airlines Logo
4:35 pm - 3:10 amLHR-IST
7h 35m1 stop
Aegean Airlines Logo
10:00 pm - 9:15 pmIST-LHR
26h 15m1 stop
$225Aegean Airlines
Find Deal
Tue, Nov 18 - Thu, Nov 27
Aegean Airlines Logo
10:15 pm - 10:35 amLHR-IST
9h 20m1 stop
Aegean Airlines Logo
10:00 pm - 5:55 pmIST-LHR
22h 55m1 stop
$226Aegean Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
BA's Euro Traveller includes a carry-on bag.
Turkish Airlines provides onboard chefs in business.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
British Airways
Cheapest • from $205 (round-trip)
Turkish Airlines
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 6% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 29% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$205
Typical prices: $197-$278
British Airways
Fri 11/21Sun 11/23
LHR - IST • Non-stop
Cheapest non-stop
$205
Typical prices: $214-$377
British Airways
Fri 11/21Wed 12/3
LHR - IST • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Istanbul!
Booking Insights

KAYAK's insights & trends for Heathrow to Istanbul flights

Get data-powered insights and trends into flights from Heathrow to Istanbul to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from London Heathrow Airport to Istanbul Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Istanbul Airport departing in November.

What’s the cheapest day of the week to fly from London Heathrow Airport to Istanbul Airport?

The average price of all round-trip flights from London Heathrow Airport to Istanbul Airport clicked on KAYAK for each day over the last 12 months.

When flying from London Heathrow Airport to Istanbul Airport, you should consider leaving on a Monday and avoid Tuesdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

What is the cheapest month to fly from London Heathrow Airport to Istanbul Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Istanbul Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Istanbul Airport is January, where tickets cost $209 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $434 and $424 respectively.

Can I save money by flying with a layover from London Heathrow Airport to Istanbul Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $270, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from London Heathrow Airport to Istanbul Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Istanbul Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Istanbul Airport, you should book around 2 weeks before departure, which saves you about 6% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Istanbul

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Turkish Airlines

Enjoy free Wi-Fi up to 1GB in business class, enhancing productivity during your flight.


Turkish Airlines offers onboard chefs ensuring high-quality meal preparation in business class.

British Airways

BA's premium economy offers seven inches more legroom, ideal for comfort on medium-haul flights.


BA's Euro Traveller fares include a carry-on bag, avoiding surprise fees common with budget airlines.

Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Turkish Airlines

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more

Good to know

Low seasonJanuary
Cheapest flight$122
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 46% increase in price.
Flight from London Heathrow Airport to Istanbul Airport

When to book flights from Heathrow to Istanbul

Are your dates flexible? Find out the best times to travel from Heathrow to Istanbul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Istanbul Airport flights

  • What is the cheapest flight from London Heathrow Airport to Istanbul Airport?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Istanbul Airport was $122 for a one-way ticket and $205 for a round-trip.

  • Do I need a passport to fly between London Heathrow Airport and Istanbul Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in London Heathrow Airport and on arrival in Istanbul Airport.

  • Which airports will I be using when flying from London Heathrow Airport to Istanbul Airport?

    London Heathrow Airport and Istanbul Airport are both served by 1 main airport. You will leave London Heathrow Airport from London Heathrow and will be arriving at Istanbul.

  • Which aircraft models fly most regularly from London Heathrow Airport to Istanbul Airport?

    The Airbus A321neo is the aircraft model that flies most regularly on the London Heathrow Airport to Istanbul Airport flight route.

  • Which airline alliances offer flights from London Heathrow Airport to Istanbul Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Istanbul Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from London Heathrow Airport to Istanbul Airport?

    There are nonstop flights from London Heathrow Airport to Istanbul Airport on a daily basis.

  • Which is the best airline for flights from London to Istanbul, Turkish Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from London to Istanbul are Turkish Airlines and British Airways. With an average price for the route of $280 and an overall rating of 7.3, Turkish Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $274 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Istanbul Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Istanbul Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Istanbul Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Istanbul Airport from London Heathrow Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Istanbul Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Istanbul Airport with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and IST can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Istanbul Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Istanbul Airport from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London Heathrow Airport to Istanbul Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $207 or less one-way and $389 or less round-trip.

Prefer to fly direct from London Heathrow Airport to Istanbul Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow to Istanbul.
Find which airlines fly direct from London Heathrow Airport to Istanbul Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Istanbul

Monday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Tuesday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Wednesday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Thursday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Friday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Saturday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Sunday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

See more direct flights

Direct returns

Istanbul to London Heathrow

Monday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Tuesday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Wednesday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Thursday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Friday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Saturday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

Sunday

British Airways, Turkish Airlines

British Airways, Turkish Airlines

See more direct flights

Reviews of the top airlines flying from Heathrow to Istanbul

 
See real verified KAYAK customer reviews for airlines flying from London to Istanbul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Istanbul? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Turkish AirlinesOverall score based on 4009 reviews
7.7Crew
7.3Comfort
7.4Entertainment
7.4Food
7.3Boarding
Airline reviews

On the Boeing 777-300 aircraft there is no personalized climate control for passengers. Every time I've ever flown on this type of airplane I've been uncomfortably warm. For shorter flights (less than 5 hours) this isn't a big deal, but on longer flights where a nap is required to stay comfortable it turns into a nightmare. I love turkish airlines, but I really fo hope they upgrade their fleet. I've flown turkish air once on a newer model and had a fantastic time, so I think its the plane more than the airline.

6.0 GoodEmmett, Oct 2025ATH - IST
Read more Turkish Airlines reviews

On the Boeing 777-300 aircraft there is no personalized climate control for passengers. Every time I've ever flown on this type of airplane I've been uncomfortably warm. For shorter flights (less than 5 hours) this isn't a big deal, but on longer flights where a nap is required to stay comfortable it turns into a nightmare. I love turkish airlines, but I really fo hope they upgrade their fleet. I've flown turkish air once on a newer model and had a fantastic time, so I think its the plane more than the airline.

This is my 2nd time with the Turkish airline. Would definitely recommend. In stability we connected to Indiago would not recommend, very cramped seating. No inflight entertainment..service was inferior.

Staff friendly. Business class but issue with flat bed. Incoming Turkish flight delayed. Made connection due to fast buggy but luggage did not make it. Confusion at Delhi airport

I wouldn't know what the flight was like. AI canceled my flight reservation!! There's no way to speak to an actual human to fix the issue! NEVER AGAIN! ALWAYS BOOK YOUR FLIGHT DIRECTLY WITH THE AIRLINE NEVER GO THROUGH KAYAK OR JUSTFLY.COM!!

I really enjoyed the food, only bad part on one of my flights my screen was a bit buggy but it wasn't a big deal it was one of their older planes so I understand that happens

Paying extra for premium seats was wasted. Turkish Airlines takes 2 seats for bassinet. The lady next to me had a baby with bassinet Bassinet was in front of my seat

What I did not like was that the airline changed my seat in Bodrum to one that was not in business class. Up until that moment I was in seat 1A. Then suddenly they told me I was in seat 1K and my "tablet was not working". - meaning my tv screen. I said that was not ok and they said go tell them in Istanbul. Each Turkish Air rep that I consulted told me there were no available seats in Business class. Finally I talked to the 4 airline representatives outside the lounge. When I talked to a woman and explained I wanted to change my seat back to what I had, A lady consulted something, asked me if I signed anything, then turned to a man nearby and spoke in Turkish. The man consulted someone and spoke in Turkish to the woman. Then she said my seat was now A1. Why was my seat changed out of business class in the first place? What would have happened if I had not talked to someone at the lounge? I am totally confused.

THE SEATS ARE A JOKE!!!! YOU CALL THIS BUSINESS CLASS SEATS ? ITS A DISGRACE.. NARROW, CLAUSTRIPHOBIC SEATS CAN NEVER BE COMPENSATED FOR BY FOCUSING ON BETTER WUALITY FOOD SERVED....... THE CONFORT OF THE SEATS AND THE WIDTH & PITCH OF THE SEATS ARE WAY MORE IMP. THAN FOOD THAT TK IS FOCUSING ON... WILL NEVER FLY AGAIN EVEN IF THE PRICE OF BUSINESS CLASS SEAT IS SAME AS ECONOMY CLASS..... JAL/ QATAR/ EMIRATES HAS WAYYYY MORE COMFY SEATS

Rude staff. I would avoid using the word racist but definitely partially or discriminatory. My 72 yrs old mother who is also disabled was traveling on this flight. She was the second passenger boarded to the plane. The First elderly couple ahead of my mother were allowed to use the airplane bathroom but my mother was denied entry stating it was for safety reasons. My mother objected the the couple in front of her were allowed but hostess still stated that due to the flight safety reasons she can’t use it. Even my mother explained that he is using blood pressure medication that’s why she have to use the restroom frequently but the crew continued arguing her. At one point the Mae attendent even suggested that if that’s the case my mother can urinate in her seat. The level of disrespect against an elderly lady is beyond my comprehension. This matter will be taken to the social media to shame the employees involved.

my experience was great with Turkish airlines . the problem i encountered was with kayak booking. When I booked . it showed that im allowed a bag . and when I got to the airport, i had to pay $165 for one bag.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

No WiFi in either flight. No leg room, the seat in front of me left dents on my knees and the tray was so low my knees propped it up if I tried to use it.

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

1. The website didn’t allow me to checkin from London as I have Bangladesh passport with US permanent resident card. This pushed me to sit with my wife in the middle of two aisle seats, terrible experience! 2. BA should allow within 24 hours to checkin with other passport holders to choose better seats. A 2nd verification of travel documents can be done at the desk about immigration status. 3. Food options were poor for vegetarian passengers, try to introduce healthy options avoiding carb-dense food ingredients.

Cabin crew lovely and accommodating and I'll always fly BA in the future

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

Everything you need to know for your flight from Heathrow to Istanbul

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