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$126+ Cheap flights from Heathrow (LHR) to Istanbul (IST)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
1 adult, Economy
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Find cheap flights from Heathrow to Istanbul with Cheapflights

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Cheapflights Tip: The best prices from London Heathrow to Istanbul are usually found in November or January, booked 54 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Heathrow to Istanbul

Cheapest flights from Heathrow to Istanbul
Explore the most affordable flight options available from Heathrow to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.

This KLM deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:10 pm
LHR
-
IST
1 stop6h 10m
Multiple Airlines
Fri 5/224:25 am
IST
-
LHR
1 stop8h 05m
Multiple Airlines
Deal found 3/16$206
This Air France deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:45 am
LHR
-
IST
1 stop11h 35m
Multiple Airlines
Thu 5/74:25 am
IST
-
LHR
1 stop16h 10m
Multiple Airlines
Deal found 3/16$208
This British Airways deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:15 am
LHR
-
IST
Nonstop3h 55m
British Airways
Thu 4/238:05 pm
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 3/18$210
This British Airways deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:35 pm
LHR
-
IST
Nonstop3h 50m
British Airways
Tue 4/287:55 pm
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 3/18$211
This KLM deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:10 pm
LHR
-
IST
1 stop6h 10m
KLM
Tue 4/216:00 am
IST
-
LHR
1 stop6h 45m
KLM
Deal found 3/17$212
This KLM deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:10 pm
LHR
-
IST
1 stop6h 10m
KLM
Tue 6/96:00 am
IST
-
LHR
1 stop9h 50m
KLM
Deal found 3/17$213
This KLM deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:10 pm
LHR
-
IST
1 stop6h 10m
KLM
Mon 4/276:00 am
IST
-
LHR
1 stop6h 45m
KLM
Deal found 3/18$214
This KLM deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/52:45 pm
LHR
-
IST
1 stop8h 35m
KLM
Mon 4/276:00 am
IST
-
LHR
1 stop6h 45m
KLM
Deal found 3/15$215
This Booking.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:50 pm
LHR
-
IST
Nonstop3h 50m
British Airways
Wed 4/227:25 pm
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 3/17$216
This Booking.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:30 pm
LHR
-
IST
Nonstop3h 45m
Turkish Airlines
Mon 5/188:25 pm
IST
-
LHR
Nonstop4h 00m
Turkish Airlines
Deal found 3/16$217
This British Airways deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:15 am
LHR
-
IST
Nonstop3h 55m
British Airways
Fri 4/248:30 pm
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 3/17$218

Find flight deals from Heathrow to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$206
(KLM)

One-way from

$126
(KLM)

Popular in

July

Cheapest in

November

Average price

$258

Good round-trip deal

$373 or less

Good one-way deal

$236 or less
Provider with most accurate pricing for London Heathrow-Istanbul flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Istanbul flights.
Search Deals
From London Heathrow to Istanbul
Search Deals
One-way flight from London Heathrow to Istanbul
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Istanbul.
Search Deals
Price to beat on a one-way flight from London Heathrow to Istanbul.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Istanbul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 19, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Istanbul Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 4/12

8:40 am-2:35 pm

Nonstop3h 55m

Istanbul

Mon 4/27

8:15 pm-10:15 pm

Nonstop4h 00m

$225

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 4/27

1:30 pm-3:40 am

1 stop12h 10m

Istanbul

Tue 5/12

4:30 am-12:30 pm

1 stop10h 00m

$230
Quickest round-trip

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 5/5

6:35 pm-12:25 am

Nonstop3h 50m

Istanbul

Wed 5/6

7:25 pm-9:25 pm

Nonstop4h 00m

$241

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 4/19

7:25 pm-3:40 am

1 stop6h 15m

Istanbul

Sat 5/2

4:30 am-7:05 pm

1 stop16h 35m

$251

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 4/26

7:05 pm-12:55 am

Nonstop3h 50m

Istanbul

Mon 4/27

8:15 pm-10:15 pm

Nonstop4h 00m

$253

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Thu 4/30

6:15 am-12:10 pm

Nonstop3h 55m

Istanbul

Mon 5/4

8:15 pm-10:15 pm

Nonstop4h 00m

$261

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 4/1

2:45 pm-1:20 am

1 stop8h 35m

Istanbul

Tue 4/21

6:00 am-10:45 am

1 stop6h 45m

$263

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 7/11

7:55 pm-3:00 pm

1 stop17h 05m

Istanbul

Thu 7/23

4:40 pm-12:30 pm

1 stop21h 50m

$272

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 9/1

10:20 am-3:40 am

1 stop15h 20m

Istanbul

Sun 9/6

4:30 am-4:00 pm

1 stop13h 30m

$296

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 4/8

5:50 pm-2:05 am

1 stop6h 15m

Istanbul

Fri 4/10

3:45 am-8:15 am

1 stop6h 30m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Heathrow to Istanbul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Istanbul in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars
OneTravelPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Istanbul Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Istanbul Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Istanbul Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Istanbul Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Istanbul Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Istanbul Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Istanbul. Price data was last updated on March 13, 2026.

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Istanbul Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Istanbul Airport?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of $173). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of $239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to IST?

Find hourly flight availability from Heathrow to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 19, 2026.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Istanbul Airport in the morning. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from London Heathrow Airport to Istanbul Airport?

The best insider tips for London Heathrow Airport to Istanbul Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Istanbul Airport trip
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Turkish Airlines

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

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

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated March 19, 2026.
Read reviews from past customers who have flown Turkish Airlines and British Airways from London Heathrow Airport to Istanbul Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
4,259 reviews

Entertainment

7.5

Boarding

7.3

Overall

7.3

Crew

7.8

Comfort

7.3

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Jan 2026

NQZ - IST

First of all, my flight got delayed. When I had a registration in Astana, the girl who was working on a desk was too lazy to fill out my info and that’s why she gave me only 2 tickets instead of 3. While boarding I realized it and had to talk to another worker who was solving this problem. My seat was near emergency door, people in front were reclining their seats, but I couldn’t- that made me have a little space to sit, move, etc. That was really uncomfortable. So the flight itself also took longer and I didn’t have time to reach another gate for next flight, even tho flight attendant said plane will be in time. I had to go to Turkish Airlines main office, most of workers didn’t speak enough good English to explain properly where it is. It also took me like 1,5 hours to solve. I was not satisfied with the flight at all this time.
Turkish Airlines
7.3
Good
4,259 reviews
Turkish Airlines
7.3
Good
4,259 reviews

Entertainment

7.5

Boarding

7.3

Overall

7.3

Crew

7.8

Comfort

7.3

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Jan 2026

NQZ - IST

First of all, my flight got delayed. When I had a registration in Astana, the girl who was working on a desk was too lazy to fill out my info and that’s why she gave me only 2 tickets instead of 3. While boarding I realized it and had to talk to another worker who was solving this problem. My seat was near emergency door, people in front were reclining their seats, but I couldn’t- that made me have a little space to sit, move, etc. That was really uncomfortable. So the flight itself also took longer and I didn’t have time to reach another gate for next flight, even tho flight attendant said plane will be in time. I had to go to Turkish Airlines main office, most of workers didn’t speak enough good English to explain properly where it is. It also took me like 1,5 hours to solve. I was not satisfied with the flight at all this time.
British Airways
6.7
Okay
7,802 reviews
Turkish Airlines
7.3
Good
4,259 reviews

Entertainment

7.5

Boarding

7.3

Overall

7.3

Crew

7.8

Comfort

7.3

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Jan 2026

NQZ - IST

First of all, my flight got delayed. When I had a registration in Astana, the girl who was working on a desk was too lazy to fill out my info and that’s why she gave me only 2 tickets instead of 3. While boarding I realized it and had to talk to another worker who was solving this problem. My seat was near emergency door, people in front were reclining their seats, but I couldn’t- that made me have a little space to sit, move, etc. That was really uncomfortable. So the flight itself also took longer and I didn’t have time to reach another gate for next flight, even tho flight attendant said plane will be in time. I had to go to Turkish Airlines main office, most of workers didn’t speak enough good English to explain properly where it is. It also took me like 1,5 hours to solve. I was not satisfied with the flight at all this time.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Istanbul Airport?

    Airlines like British Airways and Air Serbia fly from London Heathrow Airport to Istanbul Airport in about 3h 55m. The time it takes to get you to your destination can typically vary by up to 19h 35m. Airlines will cover a distance of 1545 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from London Heathrow Airport to Istanbul Airport round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Istanbul Airport round-trip from $206. Another airline that can offer you cheap pricing is Turkish Airlines. British Airways is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from London Heathrow Airport to Istanbul Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Istanbul Airport on time: Icelandair (97%), LATAM Airlines (95%), Avianca (93%).

  • What are the cheapest flights from London Heathrow Airport to Istanbul Airport?

    Looking for the cheapest flight from London Heathrow Airport to Istanbul Airport? While on average our users pay $638, our data indicates the cheapest price to be $153. The most popular route (London Heathrow - Istanbul), is priced around $210.

  • Can I find deals for flights from Heathrow to Istanbul that include hotel bookings?

    Yes. In addition to deals on Heathrow to Istanbul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Istanbul.

  • Can I find deals for business class flights from Heathrow to Istanbul?

    Yes. Cheapflights offers flight deals from Heathrow to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of $173). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of $239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

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Alternative routes for Heathrow to Istanbul

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Heathrow to Sabiha Gokcen flights

Top 2 airlines flying from Heathrow to Istanbul

Discover the top 2 airlines that operate flights from Heathrow to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$206Average$282FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$213Average$300FlexibilityNo cancel feeOn-time77%

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