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$117+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
Sep 10 — Sep 171
Wed 9/10
Wed 9/17
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Istanbul are usually found in January or March, booked 83 days in advance, depart on a Monday or Thursday and return on a Tuesday

Cheap 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 September 5, 2025.

Round-trip from

$199
(Aegean Airlines)

One-way from

$117
(CheapOair)

Popular in

August

Cheapest in

January

Average price

$283

Good round-trip deal

$407 or less

Good one-way deal

$229 or less
From London Heathrow to Istanbul
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One-way flight from London Heathrow to Istanbul
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Highest demand for flights based on searches. 23% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from London Heathrow to Istanbul.
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Price to beat on a one-way flight from London Heathrow to Istanbul.
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Find 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 September 5, 2025.

This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:15 pmLHR - IST
1 stop19h 45mMultiple Airlines
Fri 12/52:55 pmIST - LHR
Nonstop4h 25mMultiple Airlines
Deal found 9/3$201
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:35 pmLHR - IST
1 stop20h 25mMultiple Airlines
Sun 11/239:20 pmIST - LHR
Nonstop4h 15mMultiple Airlines
Deal found 9/3$203
This Orbitz deal was found by Cheapflights users on 9/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:15 pmLHR - IST
1 stop14h 45mMultiple Airlines
Sun 11/169:20 pmIST - LHR
Nonstop4h 15mMultiple Airlines
Deal found 9/3$204
This British Airways deal was found by Cheapflights users on 9/4. 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.
Sat 10/116:30 pmLHR - IST
Nonstop3h 50mBritish Airways
Tue 10/217:55 pmIST - LHR
Nonstop4h 00mBritish Airways
Deal found 9/4$207
This British Airways deal was found by Cheapflights users on 9/2. 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.
Tue 10/76:35 pmLHR - IST
Nonstop3h 55mBritish Airways
Tue 10/217:55 pmIST - LHR
Nonstop4h 00mBritish Airways
Deal found 9/2$208
This Booking.com deal was found by Cheapflights users on 9/4. 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 10/106:30 pmLHR - IST
Nonstop3h 50mTurkish Airlines
Wed 10/151:45 pmIST - LHR
Nonstop4h 10mTurkish Airlines
Deal found 9/4$212
This Travelocity deal was found by Cheapflights users on 9/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:35 pmLHR - IST
1 stop7h 35mMultiple Airlines
Tue 11/186:40 pmIST - LHR
Nonstop4h 15mMultiple Airlines
Deal found 9/3$213
This Orbitz deal was found by Cheapflights users on 9/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:15 pmLHR - IST
1 stop14h 45mMultiple Airlines
Sat 11/152:55 pmIST - LHR
Nonstop4h 25mMultiple Airlines
Deal found 9/3$214
This British Airways deal was found by Cheapflights users on 9/4. 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.
Fri 10/106:50 pmLHR - IST
Nonstop3h 50mBritish Airways
Tue 10/147:55 pmIST - LHR
Nonstop4h 00mBritish Airways
Deal found 9/4$215
This British Airways deal was found by Cheapflights users on 9/4. 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.
Fri 11/287:00 amLHR - IST
Nonstop3h 55mBritish Airways
Sun 11/309:20 pmIST - LHR
Nonstop4h 15mBritish Airways
Deal found 9/4$216
This KLM deal was found by Cheapflights users on 9/4. 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 11/56:30 amLHR - IST
1 stop7h 25mMultiple Airlines
Sun 11/94:50 amIST - LHR
1 stop6h 05mMultiple Airlines
Deal found 9/4$217
This Booking.com deal was found by Cheapflights users on 9/2. 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 10/17:05 pmLHR - IST
Nonstop3h 55mTurkish Airlines
Wed 10/81:05 pmIST - LHR
Nonstop4h 00mTurkish Airlines
Deal found 9/2$218

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 September 5, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Istanbul Airport that are best for you.

Fly from

Heathrow

Fly to

Istanbul

Route

Depart

Return

Price

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 1/21

10:15 pm-4:00 pm

1 stop14h 45m

Istanbul

Sat 1/24

11:35 am-9:15 pm

1 stop12h 40m

$199

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 10/11

6:30 pm-12:20 am

Nonstop3h 50m

Istanbul

Tue 10/21

7:55 pm-9:55 pm

Nonstop4h 00m

$207

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 10/11

6:30 pm-12:20 am

Nonstop3h 50m

Istanbul

Wed 10/22

5:35 pm-7:35 pm

Nonstop4h 00m

$207

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 1/6

6:55 am-1:50 pm

Nonstop3h 55m

Istanbul

Tue 1/13

6:40 pm-7:55 pm

Nonstop4h 15m

$207

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 2/6

7:00 am-1:55 pm

Nonstop3h 55m

Istanbul

Mon 2/9

3:15 pm-4:40 pm

Nonstop4h 25m

$207

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 3/2

10:30 am-5:25 pm

Nonstop3h 55m

Istanbul

Sun 3/8

6:40 pm-7:55 pm

Nonstop4h 15m

$207

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 12/5

7:00 am-1:55 pm

Nonstop3h 55m

Istanbul

Tue 12/9

6:40 pm-7:55 pm

Nonstop4h 15m

$207

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 10/13

6:35 pm-12:25 am

Nonstop3h 50m

Istanbul

Tue 10/21

7:55 pm-9:55 pm

Nonstop4h 00m

$208

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 10/12

7:05 pm-12:55 am

Nonstop3h 50m

Istanbul

Tue 10/21

7:55 pm-9:55 pm

Nonstop4h 00m

$208

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 10/7

6:35 pm-12:30 am

Nonstop3h 55m

Istanbul

Tue 10/21

7:55 pm-9:55 pm

Nonstop4h 00m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

Showing 1-10 of 19 results
1
2

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Istanbul Airport trip
Airlines
Turkish Airlines

TK's Business Class offers direct aisle access and fully reclining seats.


TK's Economy seats feature adjustable headrests and USB charge points.

Read more about Turkish Airlinesby Jessica Macdonald
British Airways

BA's Club Suite offers privacy with solo pods and a door you can close.


BA's World Traveller Plus offers extra seat width and legroom in a dedicated cabin.

Read more about British Airwaysby Gabriel Leigh
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Turkish Airlines

Jessica Macdonald

Jessica Macdonald

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 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

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 August 29, 2025.

Booking 83 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of $921). Flying from London Heathrow Airport to Istanbul Airport in June is currently the most expensive (average of $1,359). 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 September 5, 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Istanbul Airport at noon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Heathrow to Istanbul. Price data was last updated on August 31, 2025.

Travelers seeking maximum savings on their London Heathrow Airport to Istanbul Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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

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 September 5, 2025.
Read reviews from past customers who have flown LOT, 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.
LOT
7.6
Good
1,111 reviews

Overall

7.6

Comfort

7.5

Food

7.2

Boarding

7.6

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Krzysztof,Sep 2025

ORD - KRK

It’s a professional person and flyer I love the LOT I will going to use this again
LOT
7.6
Good
1,111 reviews
LOT
7.6
Good
1,111 reviews

Overall

7.6

Comfort

7.5

Food

7.2

Boarding

7.6

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Krzysztof,Sep 2025

ORD - KRK

It’s a professional person and flyer I love the LOT I will going to use this again
Turkish Airlines
7.3
Good
3,954 reviews
LOT
7.6
Good
1,111 reviews

Overall

7.6

Comfort

7.5

Food

7.2

Boarding

7.6

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Krzysztof,Sep 2025

ORD - KRK

It’s a professional person and flyer I love the LOT I will going to use this again
British Airways
6.7
Okay
7,345 reviews
LOT
7.6
Good
1,111 reviews

Overall

7.6

Comfort

7.5

Food

7.2

Boarding

7.6

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Krzysztof,Sep 2025

ORD - KRK

It’s a professional person and flyer I love the LOT I will going to use this again

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 Aegean Airlines and British Airways fly from London Heathrow Airport to Istanbul Airport in about 3h 50m. The time it takes to get you to your destination can typically vary by up to 10h 55m. 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 $178. Other airlines that can offer you cheap pricing are LOT, from $186, and Turkish Airlines, from $206. British Airways is 39% 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 (87%), Avianca (78%), United Airlines (75%).

  • 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 $550, our data indicates the cheapest price to be $157. The most popular route (London Heathrow - Istanbul), is priced around $225.

  • 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of $921). Flying from London Heathrow Airport to Istanbul Airport in June is currently the most expensive (average of $1,359). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Istanbul

See prices for flight routes from nearby airports that may be better suited for you.
London City to Istanbul flights
Gatwick to Istanbul flights
Heathrow to Sabiha Gokcen flights

Top 3 airlines flying from Heathrow to Istanbul

Discover the top 3 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 September 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$178Average$272FlexibilityNo cancel feeOn-time70%
LOTCheapest$186Average$218FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$206Average$288FlexibilityNo cancel feeOn-time77%

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