Flights Istanbul → London
IST → LHR
How long is the flight from Istanbul to London?
The flight from Istanbul (IST) to London (LHR) takes 3h 20m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route connects Istanbul, where the airport opened in 2018, with London. Serving a highly trafficked destination, the route operates using a variety of aircraft including Airbus A320, Boeing 767, Boeing 777-300ER, and Airbus A321 to accommodate the nearly 84 million passengers who pass through London's airport annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Istanbul (IST) → London (LHR) route is operated by American Airlines, British Airways, Turkish Airlines. Across 14 flights monitored in recent months, 100% arrived on time (within 15 min of schedule), with an average delay of -4 minutes. The cancellation rate is 0.00%. FlightGuard's average computed risk is 15.2/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At London the average ATFM delay is 1.8 minutes (main cause: atfm). Departing from Istanbul the average ATFM delay is 3.5 minutes.
Heading to London: what to expect in this direction
Flying from Istanbul (IST) to London (LHR) heads north-west for about 2,487 km, a flight time of roughly 3h 20m.
Departures from Istanbul on this leg cluster in the evening window: about 86% of IST-LHR flights take off then.
Air-traffic congestion: departing Istanbul the average ATFM delay is 3.5 min (atfm); arriving into London it is 1.8 min (atfm).
Across 14 tracked IST-LHR flights, 100% left on time with an average delay of -4 min and a 0.0% cancellation rate.
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| American Airlines (AA) | 79% | 6 min | 1.1% |
| British Airways (BA) | 66% | 31 min | 1.3% |
Airlines operating IST-LHR
Frequently asked questions about IST-LHR
The flight from Istanbul (IST) to London (LHR) takes 3h 20m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Istanbul (IST) -> London (LHR) route, on-time performance is 100% with an average delay of -4 minutes, based on 14 tracked flights.
The cancellation rate on Istanbul-London is 0.00% across 14 monitored flights.
The route is operated by 3 airlines: American Airlines, British Airways, Turkish Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at London, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
