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 Mon, 20 Apr 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:IST,departure:20/04/2026TANYT&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=AQpiCi8IwWYSAzYwNRjriQEg4DwouO-KAzCP8YoDOFRAAFgBagVMSUdIVHIHVE5MR1RMQwovCMFmEgM5OTAY4DwgyJwBKNb0igMwtfWKAzhUQAFYAWoFTElHSFRyB1ROTEdUTEMSCggBEAEYASoCQTMYASIECAEQASgCKAMoBDAL) 

- ![](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 £238 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)

Fri, 24 Apr - Sat, 25 Apr

LHR

London

IST

Istanbul

£238

Return

just found

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:IST,departure:24/04/2026TANYT&leg2=from:IST,to:LHR,departure:25/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:237.35&airProductToken=AQpiCi8IwWYSAzYwORjriQEg4Dwo-52LAzDSn4sDOFRAAFgBagVMSUdIVHIHVE5MR1RMQwovCMFmEgM5OTAY4DwgyJwBKNahiwMwtaKLAzhUQAFYAWoFTElHSFRyB1ROTEdUTEMKYgovCMFmEgM5OTUYyJwBIOA8KNOniwMwraiLAzhUQABYAWoFTElHSFRyB1ROTEdUTEMKLwjBZhIDNjAwGOA8IOuJASi3rYsDMKeviwM4VEABWAFqBUxJR0hUcgdUTkxHVExDEgoIARABGAEqAkEzGAEiBAgBEAEoAigDKAQwCw)

## 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:18/04/2026TANYT&leg2=from:IST,to:LHR,departure:21/04/2026TANYT&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 £190

](https://www.expedia.co.uk/Flights-Search?leg1=from:LHR,to:IST,departure:18/04/2026TANYT&leg2=from:IST,to:LHR,departure:21/04/2026TANYT&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 51 mins                                                                                                                                                                |

\*Available to Expedia members.