"Worldwide by Easyjet' makes the low-fare airline the first of its kind to offer global connections with other companies".
Easyjet will also sell stand-alone tickets on behalf of partner airlines, allowing customers to book flights without connections.
EasyJet is teaming up with Norwegian and WestJet to offer flights to North and South America, as well as Singapore, from Gatwick. "All of this new connectivity has been enabled by technology partner Dohop". Loganair has signed up to this service and its tickets will be available on easyJet's site from next month. Ryanair also is working with other airlines, including Norwegian Air, to help connect passengers.
United Kingdom budget airline EasyJet is to let customers use its website to book long-haul flights with other carriers.
Now around 200,000 "self-connect" on Easyjet - booking separate Easyjet flights and the GatwickConnects product themselves in three different transactions.
EasyJet also said it was in talks with carriers in the Middle East and Asia about joining the scheme, which would expand into other airports in Europe.
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It will not hold flights for connecting passengers, who will be subject to a minimum connection time of two and a half hours between flights.
EasyJet's outgoing chief executive Dame Carolyn McCall said: "Around 70 million passengers flying through an easyJet airport each year are connecting on to other flights, mainly long-haul, and it is this market segment that Worldwide by easyJet will open up for us".
Peter Duffy, chief commercial officer at easyJet, said 70 million passengers now begin journeys at easyJet airports, and make a stop before travelling across continents, and that easyJet wanted a slice of that market.
The Gatwick Connect scheme allows passengers to pick up their bags and drop them off at a transfer desk before going through security for their next flight. We are confident it will be popular with customers and look forward to announcing more partners in the near future. Between them they have tens of millions of connecting passengers each year whose journeys start or end in Europe.
"For us this is a great opportunity to increase passenger traffic on our long-haul routes from Gatwick".