LHR - IST

$120 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 9/7. 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, 0 bags

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$191
Typical prices: $464-$298
British Airways
Thu 6/25Thu 7/2
LHR - IST • Non-stop
Cheapest one-way
$120
Typical prices: $159-$208
British Airways
Mon 9/7
LHR - IST • Non-stop
Top airlines
Cheapest • from $191 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with British Airways and Turkish Airlines. Average duration is 3h 50m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $265 (round-trip)
Shortest trip • 5h 56m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Expert advice
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

Thu, Jun 25 - Thu, Jul 2
British Airways Logo
6:15 am - 12:10 pm
LHR
-
IST
3h 55mnonstop
British Airways Logo
1:10 pm - 3:20 pm
IST
-
LHR
4h 10mnonstop
$191British Airways
Wed, Jun 24 - Wed, Jul 8
British Airways Logo
7:15 pm - 1:05 am
LHR
-
IST
3h 50mnonstop
British Airways Logo
8:15 am - 10:30 am
IST
-
LHR
4h 15mnonstop
$216British Airways
Thu, Sep 10 - Tue, Oct 6
British Airways Logo
6:35 pm - 12:25 am
LHR
-
IST
3h 50mnonstop
British Airways Logo
2:35 pm - 4:45 pm
IST
-
LHR
4h 10mnonstop
$218British Airways
Fri, Aug 28 - Tue, Sep 29
Multiple Airlines Logo
2:45 pm - 1:20 am
LHR
-
IST
8h 35m
1 stop
Multiple Airlines Logo
4:25 am - 1:45 pm
IST
-
LHR
11h 20m
1 stop
$219Multiple Airlines
Mon, Sep 14 - Mon, Sep 28
British Airways Logo
6:35 pm - 12:25 am
LHR
-
IST
3h 50mnonstop
British Airways Logo
8:15 pm - 10:15 pm
IST
-
LHR
4h 00mnonstop
$220British Airways
Tue, Sep 29 - Tue, Oct 6
British Airways Logo
6:35 pm - 12:25 am
LHR
-
IST
3h 50mnonstop
British Airways Logo
2:35 pm - 4:45 pm
IST
-
LHR
4h 10mnonstop
$221British Airways
Thu, Sep 10 - Tue, Oct 6
British Airways Logo
6:35 pm - 12:25 am
LHR
-
IST
3h 50mnonstop
British Airways Logo
2:35 pm - 4:45 pm
IST
-
LHR
4h 10mnonstop
$222British Airways
Sat, Jun 27 - Fri, Jul 3
British Airways Logo
6:30 pm - 12:20 am
LHR
-
IST
3h 50mnonstop
British Airways Logo
8:30 pm - 10:30 pm
IST
-
LHR
4h 00mnonstop
$223British Airways
Sun, Jun 28 - Tue, Jul 7
British Airways Logo
7:05 pm - 12:55 am
LHR
-
IST
3h 50mnonstop
British Airways Logo
7:55 pm - 9:55 pm
IST
-
LHR
4h 00mnonstop
$224British Airways
Mon, Aug 24 - Tue, Sep 15
KLM Logo
5:10 pm - 1:20 am
LHR
-
IST
6h 10m
1 stop
KLM Logo
6:00 am - 10:45 am
IST
-
LHR
6h 45m
1 stop
$225KLM
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 June.

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 Thursday 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 Fridays and the most expensive ones on Saturdays.

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 November, where tickets cost $244 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $472 and $419 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $273 on average.

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 4 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Istanbul

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Turkish Airlines

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.

Duncan Madden

Duncan Madden

Expert on British Airways

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.

Good to know

Low seasonJanuary
Cheapest flight$120
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 33% 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 5 days, the lowest price for a flight from London Heathrow Airport to Istanbul Airport was $120 for a one-way ticket and $191 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 $323 and an overall rating of 7.4, Turkish Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $292 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 $210 or less one-way and $337 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 3 airlines serving 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.
7.4
Turkish AirlinesOverall score based on 4406 reviews
7.5Food
7.3Boarding
7.8Crew
7.3Comfort
7.5Entertainment
Airline reviews

Excellent experience with business class area. Staff was attentive and food was amazing. Only one bathroom for business class which was logistically difficult for the staff while preparing meals. Need to offer fluids with meals. I did not get enough water to drink. But overall I rate it 5 star.

10.0 ExcellentAnonymous, May 2026
SFO - IST
Read more Turkish Airlines reviews

Excellent experience with business class area. Staff was attentive and food was amazing. Only one bathroom for business class which was logistically difficult for the staff while preparing meals. Need to offer fluids with meals. I did not get enough water to drink. But overall I rate it 5 star.

On time. Great service, friendly crew. Great food. Everything went without a hitch. We will not hesitate to fly Turkish Airlines again.

It was great. The service was excellent and the timing was very good.

On time, great food, good drink selection! Only down was alcohol-free lounge. Lufthansa had a much better offering!

Seat assignments for family traveling with 2 children. Loud crowd during sleep time

It was crowded… the bathrooms dirty and smelly. The seats have been made even smaller.

delayed to take off from detroit by 3 hours lost baggage in istanbul and now in venice without baggage

I missed the flight during my lay over in Istanbul, due to health condition. Customer service was awful. It was a nightmare. I had to purchase a new flight to my destination and was told that my return flight is compromised due to one segment of the trip being missed. NOBODY responded to my numerous calls and emails. I will never use Turkish airline in the future.

I like Turkish airline, but the food sucks. None of my children eat the food, including me, and it was really hot and

The food menu was impressive but the actual selection limited. That said, the food was excellent. The seat cushions are less than comfortable for a 12 hour flight. Space i8n economy was very good. One first leg the layover was too short. Added with a delay in arrival we could barely made the connecting flight - but the luggage did not make it. It was sent in the next flight so in the end it was a mini=or inconvenience.

Not great!!! Seats in Business class were horrible; no cushion!!!

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I was asked at the gate to put my carry-on luggage into the metal size-checking unit and it scratched my luggage. I suggest lining it with a cloth to prevent damage to passengers’ luggage.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

The staff were so very cheerful and happy! It really made my day to encounter such chipper folks throughout my journey

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

The plane was late (as was my flight out from Birmingham the day before)

The flight was delayed by an hour. Made the connection uncomfortably tight.

They delayed my flight from Toronto Pearson for one hour and Frankfurt to Abuja for 2HRS, So sad

No entertainment since it was a 3 hr flight. Good leg room for economy.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Poor service, antiquated plane with 2-3-2. B-class config upstairs. Tight and not comfortable—not what I expected for paying B-class! AND my bag didn’t make the transfer, bag will be delivered the day after it lands!

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Very comfortable flight and simple and directed one way and back. Amazing price.

We loved our flight attendant, Emma from Scotland, the meal and entertainment offerings were wonderful, the flight was smooth, and enough leg room to stretch. We would fly with you again!

Los Angeles to London. 25th of April 2026. Business class. I was flying backwards with a complete stranger snoring next to me. In Business class. Males and females, strangers lying next to each other. Seats were backwards. I paid for comfort. I got dizziness and stress.

I liked that we got there safely. I disliked long delays, gate and ticket agents incompetence and apathy and having my luggage lost. Five days later I've yet to get anything more than a generic apology from British Air. Luggage yet to be located, much less returned.

Long line with check in at the DIA British Airway counter.

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

Information on your arrival and departure airports