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Cheap flights from Istanbul Airport to London Heathrow Airport from C$ 114

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
IST — LHR
21 May — 28 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Istanbul to London Heathrow are usually found in February or January, booked 39 days in advance, depart on a Tuesday or Monday and return on a Saturday

Cheap flight deals from Istanbul to Heathrow

Enter your travel dates to find the best prices.

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 21 April 2026.

Fri 20/115:55 p.m.
IST
-
LHR
1 stop16h 45m
KLM
Tue 24/118:25 p.m.
LHR
-
IST
1 stop17h 30m
KLM
Deal found 17/4C$ 294
Sat 9/57:55 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Sat 16/56:30 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 20/4C$ 295
Thu 4/68:05 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Wed 10/67:15 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 18/4C$ 299
Wed 3/63:45 p.m.
IST
-
LHR
Nonstop4h 15m
British Airways
Wed 10/67:15 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 19/4C$ 301
Mon 15/68:15 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Mon 22/66:35 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 20/4C$ 302
Wed 3/67:25 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Tue 9/66:35 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 20/4C$ 304
Mon 2/118:15 a.m.
IST
-
LHR
Nonstop4h 30m
British Airways
Fri 6/116:15 p.m.
LHR
-
IST
Nonstop3h 55m
British Airways
Deal found 16/4C$ 306
Thu 7/56:00 a.m.
IST
-
LHR
1 stop9h 50m
KLM
Tue 12/52:45 p.m.
LHR
-
IST
1 stop8h 35m
KLM
Deal found 20/4C$ 308
Wed 6/56:00 a.m.
IST
-
LHR
1 stop6h 45m
KLM
Sat 9/55:10 p.m.
LHR
-
IST
1 stop6h 10m
KLM
Deal found 18/4C$ 309
Wed 3/67:25 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Sat 13/66:10 a.m.
LHR
-
IST
Nonstop3h 55m
British Airways
Deal found 16/4C$ 310
Mon 20/78:15 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Sun 20/97:05 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 21/4C$ 312
Wed 10/63:45 p.m.
IST
-
LHR
Nonstop4h 15m
British Airways
Fri 19/66:05 a.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 20/4C$ 315

Find 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 21 April 2026.

Round-trip from

C$ 295

One-way from

C$ 114

Popular in

August

Cheapest in

February

Average price

C$ 428

Good round-trip deal

C$ 589 or less

Good one-way deal

C$ 535 or less
British Airways
  • British Airways
  • 9/5-16/5
  • Nonstop
  • 7h 50m total
  • Istanbul to London
Search Deals
British Airways
  • British Airways
  • 19/5
  • Nonstop
  • 4h 00m total
  • Istanbul to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Istanbul to London Heathrow.
Search Deals
Price to beat on a one-way flight from Istanbul to London Heathrow.
Search Deals

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 629,999 searches. Data last updated 21 April 2026.
Use the filters below to find and compare flights from Istanbul Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 6/5

6:00 a.m.-10:45 a.m.

1 stop6h 45m

London Heathrow

Sat 9/5

5:10 p.m.-1:20 a.m.

1 stop6h 10m

C$ 309

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Mon 14/9

3:35 p.m.-5:45 p.m.

Nonstop4h 10m

London Heathrow

Sun 20/9

11:40 a.m.-5:45 p.m.

Nonstop4h 05m

C$ 332

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 5/6

3:45 p.m.-12:30 p.m.

1 stop22h 45m

London Heathrow

Sun 7/6

7:25 p.m.-3:40 a.m.

1 stop6h 15m

C$ 351
Quickest round-trip

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Tue 5/5

7:55 p.m.-9:55 p.m.

Nonstop4h 00m

London Heathrow

Fri 8/5

6:05 a.m.-11:55 a.m.

Nonstop3h 50m

C$ 356

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 20/6

1:55 p.m.-4:00 p.m.

Nonstop4h 05m

London Heathrow

Fri 26/6

4:45 p.m.-10:35 p.m.

Nonstop3h 50m

C$ 357

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 2/5

4:30 a.m.-4:00 p.m.

1 stop13h 30m

London Heathrow

Mon 4/5

10:20 a.m.-3:40 a.m.

1 stop15h 20m

C$ 382

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Tue 14/7

5:45 p.m.-7:55 p.m.

Nonstop4h 10m

London Heathrow

Wed 5/8

12:20 p.m.-6:25 p.m.

Nonstop4h 05m

C$ 391

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 30/7

1:10 p.m.-3:20 p.m.

Nonstop4h 10m

London Heathrow

Sun 9/8

8:40 a.m.-2:35 p.m.

Nonstop3h 55m

C$ 401

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 12/8

7:25 p.m.-9:25 p.m.

Nonstop4h 00m

London Heathrow

Wed 26/8

12:20 p.m.-6:25 p.m.

Nonstop4h 05m

C$ 421

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 23/5

7:55 p.m.-9:55 p.m.

Nonstop4h 00m

London Heathrow

Thu 28/5

6:35 p.m.-12:25 a.m.

Nonstop3h 50m

C$ 433

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

Showing 1-10 of 24 resultsSorted by cheapest first
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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 17 April 2026.

The price you pay for your flight from Istanbul Airport to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 39 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, February is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of C$ 356). Flying from Istanbul Airport to London Heathrow Airport in August is currently the most expensive (average of C$ 520). 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 21 April 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 15% on flights from Istanbul Airport to London Heathrow Airport by exploring options for tickets in the afternoon.

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 18 April 2026.

Travelers seeking maximum savings on their Istanbul Airport to London Heathrow Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday at noon 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 Istanbul Airport to London Heathrow Airport?

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.

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

    For as low as C$ 304, British Airways can have you in London Heathrow Airport from Istanbul Airport in 4h. There are 2486 km between Istanbul Airport and London Heathrow Airport. Both multi-stop and direct flights can be found to your destination and back.

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

    Before booking your flight to London Heathrow Airport from Istanbul Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (98%), British Airways (93%), Turkish Airlines( 87%).

  • 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 C$ 834, our data indicates the cheapest price to be C$ 435. The most popular route (Istanbul - London Heathrow), is priced around C$ 491.

  • 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, February is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of C$ 356). Flying from Istanbul Airport to London Heathrow Airport in August is currently the most expensive (average of C$ 520). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Gatwick
Twickenham
Bromley
Sutton
Slough
Marlow
Cobham
Leamington Spa
Watford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow
Moreton-in-Marsh

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When you search for this flight from Istanbul to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Istanbul to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Istanbul.

Can Cheapflights find flights from Istanbul to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Istanbul shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Istanbul to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Istanbul today and book when prices fit your budget.

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