$51 Cheap Flights from Istanbul (IST) to London (LHR)

View $51 flight on Wed, Dec 3, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Istanbul to London (IST-LHR)

Prices were available within the past 7 days and start at $51 for one-way flights and $167 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Mar 4 - Sat, Mar 7
SAW
Istanbul
LHR
London
$167 Roundtrip, found 19 hours ago
$167
Roundtrip
found 19 hours ago
Select British Airways flight, departing Wed, Mar 4 from Istanbul to London, returning Sat, Mar 7, priced at $167 found 19 hours ago
British Airways
Mon, Jan 12 - Thu, Jan 15
SAW
Istanbul
LHR
London
$169 Roundtrip, found 6 days ago
$169
Roundtrip
found 6 days ago
Select British Airways flight, departing Mon, Jan 12 from Istanbul to London, returning Thu, Jan 15, priced at $169 found 6 days ago
British Airways
Thu, Mar 5 - Sun, Mar 8
SAW
Istanbul
LHR
London
$171 Roundtrip, found 19 hours ago
$171
Roundtrip
found 19 hours ago
Select British Airways flight, departing Thu, Mar 5 from Istanbul to London, returning Sun, Mar 8, priced at $171 found 19 hours ago
British Airways
Tue, Nov 18 - Sat, Nov 22
SAW
Istanbul
LHR
London
$173 Roundtrip, found 2 days ago
$173
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 18 from Istanbul to London, returning Sat, Nov 22, priced at $173 found 2 days ago
British Airways
Mon, Jan 12 - Thu, Jan 15
IST
Istanbul
LHR
London
$175 Roundtrip, found 6 days ago
$175
Roundtrip
found 6 days ago
Select British Airways flight, departing Mon, Jan 12 from Istanbul to London, returning Thu, Jan 15, priced at $175 found 6 days ago
British Airways
Sat, Dec 20 - Sat, Jan 3
SAW
Istanbul
LHR
London
$175 Roundtrip, found 19 hours ago
$175
Roundtrip
found 19 hours ago
Select British Airways flight, departing Sat, Dec 20 from Istanbul to London, returning Sat, Jan 3, priced at $175 found 19 hours ago
Turkish Airlines
Thu, May 8 - Tue, May 27
IST
Istanbul
LHR
London
$247 Roundtrip, found 2 days ago
$247
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Thu, May 8 from Istanbul to London, returning Tue, May 27, priced at $247 found 2 days ago
Lufthansa
Tue, Jul 15 - Mon, Sep 1
IST
Istanbul
LHR
London
$250 Roundtrip, found 10 hours ago
$250
Roundtrip
found 10 hours ago
Select Lufthansa flight, departing Tue, Jul 15 from Istanbul to London, returning Mon, Sep 1, priced at $250 found 10 hours ago
Aegean
Mon, Jun 2 - Wed, Jun 11
IST
Istanbul
LHR
London
$255 Roundtrip, found 6 days ago
$255
Roundtrip
found 6 days ago
Select Aegean flight, departing Mon, Jun 2 from Istanbul to London, returning Wed, Jun 11, priced at $255 found 6 days ago
Air Serbia
Thu, May 8 - Wed, May 14
IST
Istanbul
LHR
London
$262 Roundtrip, found 6 days ago
$262
Roundtrip
found 6 days ago
Select Air Serbia flight, departing Thu, May 8 from Istanbul to London, returning Wed, May 14, priced at $262 found 6 days ago
Flights from Istanbul (SAW) to London (LHR)
Origin airport
Sabiha Gokcen Intl.
Destination airport
Heathrow
Airlines serving
Aegean, Air Baltic, Air France, Air Serbia, British Airways, KLM, KM Malta Airlines, LOT-Polish Airlines, Lufthansa, Turkish Airlines
Roundtrip price
$167
Distance
1584 mi

Istanbul to London Flights

The cheapest times to fly from Istanbul to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Istanbul to London are during the month of March. You can find some of the cheapest flights from Istanbul to London with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Istanbul to London

Sunday is one of the best days to book for cheap flights from Istanbul to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Istanbul to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Istanbul to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $51 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Istanbul to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Istanbul to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Istanbul (IST) to Heathrow Airport (LHR) cost?
Cheap return fares from Istanbul (IST) to Heathrow Airport (LHR) start at $172. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a British Airways and Pegasus Airlines flight leaving IST on May 12 2025 and touching down at LHR. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from IST to LHR?
The cheapest flights from IST to LHR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Istanbul (IST) to Heathrow Airport (LHR)?
You can’t catch a nonstop flight from Istanbul (IST) to Heathrow Airport (LHR). However, you can easily reach London without any layovers by leaving from Ataturk Intl. Airport (IST).
What is the cheapest airline that flies from IST to LHR?
Currently, the cheapest airline operating one-way flights from IST to LHR is British Airways. You can jet off on this route from $75. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IST on May 20 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Istanbul (IST) to Heathrow Airport (LHR)?
Direct flights from Istanbul (IST) to Heathrow Airport (LHR) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from IST to LHR?
Usually you’ll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from IST to LHR?
British Airways has the best track record for on-time direct flights from Istanbul (IST) to Heathrow Airport (LHR), with an on-time score of 87%. Use the Expedia App to see your journey status before you take off and get immediate updates about any changes.
What is the best time to fly from Istanbul (IST) to Heathrow Airport (LHR)?
Choose a flight from Istanbul (IST) to Heathrow Airport (LHR) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Istanbul (IST) to Heathrow Airport (LHR) last-minute?
Booking your flight from IST to LHR right before your journey is generally more expensive. But if you’re flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book an IST to LHR flight and hotel package?
Compared with arranging hotels and flights separately, booking an IST to LHR flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of hotels, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Istanbul (IST) to Heathrow Airport (LHR)?
Typically, it’s possible to cancel or reschedule your IST to LHR flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.