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$66+ Cheap flights from Istanbul (IST) to Heathrow (LHR)

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
IST — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Istanbul to London Heathrow are usually found in March or December, booked 84 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Istanbul to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) to Heathrow (LHR). 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 June 12, 2025.

Round-trip from

$181
(Expedia)

One-way from

$66
(British Airways)

Popular in

August

Cheapest in

March

Average price

$298

Good round-trip deal

$599 or less

Good one-way deal

$206 or less
From Istanbul to London Heathrow
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One-way flight from Istanbul to London Heathrow
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Highest demand for flights based on searches. 19% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Istanbul to London Heathrow.
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Price to beat on a one-way flight from Istanbul to London Heathrow.
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Find flight deals from Istanbul to Heathrow

Cheapest flights from Istanbul to Heathrow
Explore the most affordable flight options available from Istanbul to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This British Airways deal was found by Cheapflights users on 6/10. 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.
Wed 12/242:45 pmIST - LHR
Nonstop4h 25mBritish Airways
Fri 1/26:15 pmLHR - IST
Nonstop3h 55mBritish Airways
Deal found 6/10$181
This Expedia deal was found by Cheapflights users on 6/10. 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.
Wed 11/196:40 pmIST - LHR
Nonstop4h 20mMultiple Airlines
Sat 11/2210:15 pmLHR - IST
1 stop9h 20mMultiple Airlines
Deal found 6/10$213
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/272:45 pmIST - LHR
Nonstop3h 55mTurkish Airlines
Wed 7/210:25 pmLHR - IST
Nonstop3h 50mTurkish Airlines
Deal found 6/10$235
This Air Serbia deal was found by Cheapflights users on 6/10. 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 Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:30 amIST - LHR
1 stop9h 50mAir Serbia
Wed 12/171:20 pmLHR - IST
1 stop24h 30mAir Serbia
Deal found 6/10$243
This Lufthansa deal was found by Cheapflights users on 6/9. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:30 amIST - LHR
1 stop6h 15mLufthansa
Fri 1/28:45 amLHR - IST
2 stops11h 00mLufthansa
Deal found 6/9$298
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/85:30 pmIST - LHR
1 stop6h 30mLOT
Tue 7/156:10 pmLHR - IST
1 stop16h 55mLOT
Deal found 6/10$305
This Booking.com deal was found by Cheapflights users on 6/12. 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 9/38:50 pmIST - LHR
1 stop16h 25mAegean Airlines
Fri 9/54:35 pmLHR - IST
1 stop7h 45mAegean Airlines
Deal found 6/12$333

Cheapflights Fare Finder

Customize your flight search to find flights from Istanbul to Heathrow 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 June 12, 2025.
Use the filters below to find and compare flights from Istanbul Airport to London Heathrow Airport that are best for you.

Fly from

Istanbul

Fly to

Heathrow

Route

Depart

Return

Price

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 11/19

6:40 pm-8:00 pm

Nonstop4h 20m

London Heathrow

Sat 11/22

5:40 pm-12:40 am

Nonstop4h 00m

$181

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 11/19

6:40 pm-8:00 pm

Nonstop4h 20m

London Heathrow

Sat 11/22

10:15 pm-10:35 am

1 stop9h 20m

$213

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 6/27

2:45 pm-4:40 pm

Nonstop3h 55m

London Heathrow

Wed 7/2

10:25 pm-4:15 am

Nonstop3h 50m

$235

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 10/4

4:35 pm-6:40 pm

1 stop28h 05m

London Heathrow

Sun 10/12

7:25 pm-3:50 pm

1 stop18h 25m

$262

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 7/30

10:40 am-3:30 pm

1 stop6h 50m

London Heathrow

Sun 8/17

10:15 pm-3:00 pm

1 stop14h 45m

$267

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 7/3

7:00 am-5:20 pm

1 stop12h 20m

London Heathrow

Tue 7/8

6:10 pm-1:05 pm

1 stop16h 55m

$282

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 10/3

5:55 pm-10:10 pm

1 stop6h 15m

London Heathrow

Fri 10/17

6:30 am-9:20 pm

1 stop12h 50m

$304

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 11/15

6:25 pm-7:45 pm

Nonstop4h 20m

$66

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Tue 6/17

2:45 pm-4:40 pm

Nonstop3h 55m

$107

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Tue 6/17

4:35 pm-12:30 pm

1 stop21h 55m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 16 results
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Best time to book a flight from Istanbul to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Istanbul 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 Istanbul Airport to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Istanbul to Heathrow. Price data was last updated on June 9, 2025.

The best time to book flights from Istanbul Airport to London Heathrow Airport is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of $661). Flying from Istanbul Airport to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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 IST to LHR?

Find hourly flight availability from Istanbul to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Istanbul Airport to London Heathrow Airport at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Istanbul to Heathrow. Price data was last updated on June 8, 2025.

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

Weekly flight availability from Istanbul Airport to London Heathrow Airport

Explore weekly flight availability from Istanbul to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from IST to LHR are scheduled on a Monday (59 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (29 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Aegean Airlines, KLM and LOT from Istanbul to London by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.2
Very good
759 reviews

Crew

8.6

Overall

8.2

Food

7.4

Comfort

7.9

Entertainment

7.0

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.2
Very good
759 reviews
Aegean Airlines
8.2
Very good
759 reviews

Crew

8.6

Overall

8.2

Food

7.4

Comfort

7.9

Entertainment

7.0

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,358 reviews
Aegean Airlines
8.2
Very good
759 reviews

Crew

8.6

Overall

8.2

Food

7.4

Comfort

7.9

Entertainment

7.0

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,077 reviews
Aegean Airlines
8.2
Very good
759 reviews

Crew

8.6

Overall

8.2

Food

7.4

Comfort

7.9

Entertainment

7.0

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Turkish Airlines
7.3
Good
3,848 reviews
Aegean Airlines
8.2
Very good
759 reviews

Crew

8.6

Overall

8.2

Food

7.4

Comfort

7.9

Entertainment

7.0

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Lufthansa
6.8
Okay
7,139 reviews
Aegean Airlines
8.2
Very good
759 reviews

Crew

8.6

Overall

8.2

Food

7.4

Comfort

7.9

Entertainment

7.0

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

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

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

    British Airways, at $181, was found to be the cheapest airline from Istanbul Airport to London Heathrow Airport.Alternate airlines to your destination round-trip include Turkish Airlines and Air Serbia. British Airways is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Istanbul Airport to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $66. Turkish Airlines flights start at $107 while deals on Air Serbia start at $124 one-way.

  • What are the most reliable airlines from Istanbul Airport to London Heathrow 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 Istanbul Airport to London Heathrow Airport on time: Icelandair (89%), JetBlue (89%), United Airlines (86%).

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

    Looking for the cheapest flight from Istanbul Airport to London Heathrow Airport? While on average our users pay $2,920, our data indicates the cheapest price to be $120. The most popular route (Istanbul - London Heathrow), is priced around $300.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Istanbul to Heathrow 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 Istanbul Airport to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of $661). Flying from Istanbul Airport to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Istanbul to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Istanbul to Gatwick flights

Top 2 airlines flying from Istanbul to Heathrow

Discover the top 2 airlines that operate flights from Istanbul to Heathrow. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$174Average$279FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$259Average$382FlexibilityNo cancel feeOn-time77%

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