Title: £129 Cheap Aegean flights from London to Istanbul (LHR→IST) - Expedia.co.uk ![](https://images.trvl-media.com/place/178267/528fc850-021d-4d9e-a408-5ae238cb5810.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178267/528fc850-021d-4d9e-a408-5ae238cb5810.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £129 Cheap Aegean flights from London to Istanbul (LHR→IST) [View £129 flight on Wed, 22 Apr 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:IST,departure:22/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:128.15&airProductToken=AQpiCi8IwWYSAzYwNRjriQEg4Dwo-IWLAzDPh4sDOFRAAFgBagVMSUdIVHIHVE5MR1RMQwovCMFmEgM5OTAY4DwgyJwBKJaLiwMw9YuLAzhUQAFYAWoFTElHSFRyB1ROTEdUTEMSCggBEAEYASoCQTMYASIECAEQASgCKAMoBDAL) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Aegean flights from London to Istanbul (LHR→IST) Prices were available within the past 7 days and start at £129 for one-way flights and £246 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Aegean](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/A3.gif) Tue, 16 Jun - Sun, 21 Jun LHR London IST Istanbul £246 Return just found [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:IST,departure:16/06/2026TANYT&leg2=from:IST,to:LHR,departure:21/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:245.05&airProductToken=AQpiCi8IwWYSAzYwORjriQEg4Dwom_KPAzDy848DOFRAAFgBagVMSUdIVHIHVE5MR1RMQwovCMFmEgM5OTAY4DwgyJwBKPb1jwMw1faPAzhUQAFYAWoFTElHSFRyB1ROTEdUTEMKYgovCMFmEgM5OTUYyJwBIOA8KPOokAMwzamQAzhUQABYAWoFTElHSFRyB1ROTEdUTEMKLwjBZhIDNjAyGOA8IOuJASjWsJADMMaykAM4VEABWAFqBUxJR0hUcgdUTkxHVExDEgoIARABGAEqAkEzGAEiBAgBEAEoAigDKAQwCw) ## Alternative airports near Istanbul Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.co.uk/Flights-Search?leg1=from:LHR,to:IST,departure:19/04/2026TANYT&leg2=from:IST,to:LHR,departure:23/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) IST Istanbul Airport Cheapest 35 min [Flights from £212 ](https://www.expedia.co.uk/Flights-Search?leg1=from:LHR,to:IST,departure:19/04/2026TANYT&leg2=from:IST,to:LHR,departure:23/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Find the cheapest month to fly from London (LHR) to Istanbul (IST) ### November is typically the cheapest month to fly From £156 - £190 per traveller. ## Travel information | Origin airport | Heathrow | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Destination airport | Istanbul | | Airlines serving | Aegean, Air France, Air Serbia, British Airways, EGYPTAIR, ITA Airways, Iberia, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Turkish Airlines, Vueling Airlines | | Popular airline | Turkish Airlines | | Distance | 2473 km | | Average flight time | 5 hours 52 mins | \*Available to Expedia members.