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 3/24. 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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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$204
Typical prices: $209-$288
British Airways
Sat 3/14Tue 3/17
LHR - IST • Non-stop
Cheapest one-way
$122
Typical prices: $140-$199
Air Serbia
Tue 3/24
LHR - IST • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
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 $204 (round-trip)
Turkish Airlines
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with British Airways and Turkish Airlines. Average duration is 3h 54m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Turkish Airlines
Most punctual • 91% on-time
Night flights
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Athens (ATH)
Cheapest • Avg $293 (round-trip)
Belgrade (BEG)
Shortest trip • 6h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 7% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 24% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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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

Sat, Mar 14 - Tue, Mar 17
British Airways Logo
7:00 am - 1:55 pm
LHR
-
IST
3h 55mnonstop
British Airways Logo
6:40 pm - 7:55 pm
IST
-
LHR
4h 15mnonstop
$204British Airways
Sat, Mar 14 - Sat, Mar 21
British Airways Logo
5:40 pm - 12:35 am
LHR
-
IST
3h 55mnonstop
British Airways Logo
7:35 am - 9:05 am
IST
-
LHR
4h 30mnonstop
$205British Airways
Sat, Mar 14 - Tue, Mar 17
British Airways Logo
10:30 am - 5:25 pm
LHR
-
IST
3h 55mnonstop
British Airways Logo
2:55 pm - 4:20 pm
IST
-
LHR
4h 25mnonstop
$206British Airways
Sat, Mar 14 - Sat, Mar 21
British Airways Logo
10:30 am - 5:25 pm
LHR
-
IST
3h 55mnonstop
British Airways Logo
2:55 pm - 4:20 pm
IST
-
LHR
4h 25mnonstop
$207British Airways
Wed, Mar 18 - Tue, Mar 24
British Airways Logo
6:05 pm - 1:00 am
LHR
-
IST
3h 55mnonstop
British Airways Logo
2:55 pm - 4:20 pm
IST
-
LHR
4h 25mnonstop
$208British Airways
Sat, Mar 14 - Sun, Mar 22
Multiple Airlines Logo
6:30 am - 4:55 pm
LHR
-
IST
7h 25m
1 stop
Multiple Airlines Logo
4:50 am - 7:55 am
IST
-
LHR
6h 05m
1 stop
$209Multiple Airlines
Thu, Mar 19 - Mon, Mar 23
British Airways Logo
5:30 pm - 12:25 am
LHR
-
IST
3h 55mnonstop
British Airways Logo
8:15 am - 9:45 am
IST
-
LHR
4h 30mnonstop
$211British Airways
Thu, May 14 - Tue, May 19
Multiple Airlines Logo
1:30 pm - 3:40 am
LHR
-
IST
12h 10m
1 stop
Multiple Airlines Logo
7:55 pm - 9:55 pm
IST
-
LHR
4h 00mnonstop
$212Multiple Airlines
Sat, Mar 14 - Sat, Mar 21
Multiple Airlines Logo
6:30 am - 4:55 pm
LHR
-
IST
7h 25m
1 stop
Multiple Airlines Logo
4:50 am - 8:00 am
IST
-
LHR
6h 10m
1 stop
$213Multiple Airlines
Fri, Mar 13 - Tue, Mar 17
British Airways Logo
7:00 am - 1:55 pm
LHR
-
IST
3h 55mnonstop
British Airways Logo
6:40 pm - 7:55 pm
IST
-
LHR
4h 15mnonstop
$215British Airways
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 March.

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 Mondays 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 March, where tickets cost $232 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $458 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.

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 2 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 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$122
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 38% 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 $204 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 $298 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 $287 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 $238 or less one-way and $322 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 4241 reviews
7.5Food
7.3Boarding
7.5Entertainment
7.3Comfort
7.8Crew
Airline reviews

Surprised for charged $341.00 FOR my luggage. THY opportunist, taken advantage of the people not knowing luggage must be paid.. I flew 7 months ago with Lufthansa same place to Los Angeles my family lives and work in L.A. no luggage PAYS BIG zero .. I WILL NEVER TAKE ANY FLIGHTS ✈️ FROM TURKISH AIRLINES EVER AGAIN 😒 Please Don't recommend TURKISH Airlines to nobody.. I am a retired person. With very limited S.S. check for a month..$341.00 is my kitchen expenses for at list 5 weeks i am a vegetarian salads and sandwiches.. thank you very much for your investigation asking my experience about the flight with ROTTEN Airlines 😀

2.0 MediocreAnonymous, Mar 2026
ADB - IST
Read more Turkish Airlines reviews

Surprised for charged $341.00 FOR my luggage. THY opportunist, taken advantage of the people not knowing luggage must be paid.. I flew 7 months ago with Lufthansa same place to Los Angeles my family lives and work in L.A. no luggage PAYS BIG zero .. I WILL NEVER TAKE ANY FLIGHTS ✈️ FROM TURKISH AIRLINES EVER AGAIN 😒 Please Don't recommend TURKISH Airlines to nobody.. I am a retired person. With very limited S.S. check for a month..$341.00 is my kitchen expenses for at list 5 weeks i am a vegetarian salads and sandwiches.. thank you very much for your investigation asking my experience about the flight with ROTTEN Airlines 😀

Business Class pods are horrible. If you're petite, you might be able to sleep on the uncomfortable seat and bed. Crew and food are fantastic.

I have travelled many times on Turkish, but they always board at least 30-40 minutes past the stated time. If informed properly, passengers can choose to spend more time in the .lounge instead of standing around by the gate waiting to board. The new lounge at DFW was a big disappointment. The aircraft itself was a shock. In the past I have flown this sector with regular business class seating configuration of 1-2-1, The 2-3-2 seating is very disappointing after paying such high prices for tickets. The DFW to Istanbul segment was slightly better, but the Istanbul to Delhi segment was no better than premium economy. I will try to travel more on airlines which give business class passengers more value for their money.

Very Bad experience bqz I was missed my next flight.

Good overall. Seat spacing a bit tight between IST and ISB.

Excellent staff despite some trying passenger situations. Very impressed with their good attitudes and kindness.

Awful experience in Indigo, check in lines were very long with inadequate staffing. Had to wait in a warm stuffy plane on the tarmac as the flight was delayed.

They have adopted a crazy "no paper boarding passes at all cost policy". We spent half an our at the checkin stall – my elderly mother and her grandchildren were flying. She had no phone reception for some reason (besides being an inexperienced smartphone user), the kids had dumbphones, And they still won't issue a paper boarding pass. We had to do a lengthy dance with getting the boarding pass SMS on my phone and transferring them to her phone via WiFi. This was horrible, honestly. I can't imagine how they could manage it without me being there. Trees (and airline profits) should be less important than people.

Crew were unfriendly, touch screen for movies didn't work very well, seats were tight and uncomfortable

It was disapointing during the wait in Cancun. It took several hours to clean and they told us during that time we could not stand, use the bathroom, have service etc.

The luggage problem I previously mentioned was actually this flight

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Economy seats were good and spacious. Much better than virgin by a mile.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

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

Information on your arrival and departure airports