Flights from London to Istanbul

The cheapest round-trip from London to Istanbul is about 86 EUR, usually in November 2026; August 2026 is priciest, so booking the low month saves around 156 EUR (~64%). Typical fare ~86 EUR, from 331 priced fares. Flightmussy live data, updated 2026-06-13.

Cheap flights from London (LHR/LGW/STN/LTN/LCY) to Istanbul (IST/SAW). Free, no signup, no ads, no tracking. Compare every airline across 12 months of fares on one heatmap — including low-cost carriers Google Flights often deprioritises.

Fare insights: London to Istanbul

Cheapest round-trip seen: 86 EUR, usually around November 2026. Typical fare ~86 EUR. Across the year prices range roughly 86–242 EUR — about 64% cheaper in the low season than the peak (August 2026). Carriers on this route include British Airways, Lufthansa, LOT, Turkish Airlines.

Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-13. Prices change constantly — search live for current fares.

Cheapest fare by month: London to Istanbul

The lowest round-trip fare we found for each month over the coming year — low season versus peak at a glance. November 2026 is cheapest; August 2026 is priciest.

Jun 2026185 EUR
Jul 2026193 EUR
Aug 2026242 EUR
Sep 2026113 EUR
Oct 202686 EUR
Nov 202686 EUR
Dec 202686 EUR
Jan 202786 EUR
Feb 202786 EUR
Mar 202786 EUR
Apr 202786 EUR
May 202786 EUR

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Frequently asked questions

What is the cheapest month to fly from London to Istanbul?
The cheapest round-trip fares from London to Istanbul start around 86 EUR and are typically lowest in November 2026; August 2026 is the most expensive. Fares swing about 64% across the year. (Flightmussy live data, updated 2026-06-13.)
How much does a flight from London to Istanbul typically cost?
Typical round-trip is ~86 EUR; across the year fares run 86–242 EUR, cheapest 86 EUR in November 2026. Based on 331 priced fares, updated 2026-06-13.
How much can I save flying London to Istanbul in the cheapest month?
Booking the November 2026 low instead of the August 2026 peak saves about 156 EUR (~64%) per round-trip. Updated 2026-06-13.
Which airlines fly from London to Istanbul?
Carriers seen on London → Istanbul in recent searches: British Airways, Lufthansa, LOT, Turkish Airlines. Flightmussy compares every carrier serving London → Istanbul, including budget airlines like Ryanair, easyJet, Wizz Air and AirAsia that Google Flights often deprioritises.
Do I need to sign up to search flights from London to Istanbul?
No. Flightmussy is free and requires no account, no email, and no credit card. Search, compare, and click through to book directly with the airline or booking partner.

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About Flightmussy

Flightmussy is a free, independent flight search for travellers anywhere in the world. No signup, no ads, no tracking — email is optional, only for route price alerts. Compare fares across every airline and see 12 months of prices at a glance, including the low-cost carriers Google Flights often buries. Book directly with the airline or a trusted partner — we never add a markup.

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Flightmussy runs its own 12-month forward fare scans across thousands of routes worldwide and publishes the data openly. Read the cheapest month to fly almost anywhere → — a global study of when fares are lowest — or browse the cheapest destinations from a city:

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