On Sunday, October 26, when northern carriers switch to winter schedules, London Heathrow will welcome Air Peace , IndiGo , and Riyadh Air . It will be the first time a trio of long-haul carriers has started at the UK's busiest airport in one day for many years, possibly ever. They'll be joined by Alaska Airlines next summer.

Given these developments, it is easy to think that Heathrow is not renowned for its lack of slots. But there are various ways to obtain them, as mentioned below. Still, they are generally unavailable. No wonder it's the world's third-busiest airport for widebody flights , and why it has among the highest numbers of seats per flight.

Riyadh Air Will Arrive At 07:30

The startup carrier Riyadh Air will commence daily service from Riyadh to Heathrow,

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