My flight into Gatwick this November was just changed and I now arrive an hour later. We arrive from Canada via Air Transat at 9:05am and have a connecting flight to Barcelona via Easyjet at 10:30am. Can we make it?
As your second flight to Barcelona is with Easyjet I'm going to assume you have booked two separate tickets rather than a through ticket from Canada to Barcelona? European budget airlines do not generally transfer bags between flights, whether their own flights or not.
Whether you can feasibly make the connection largely depends on whether you have checked bags.
Air Transat use Gatwick South Terminal. Easyjet use Gatwick North Terminal. If you have checked bags you will need to go through UK border control and take the automatic train between the two terminals. The train takes around 5 minutes. If you have only cabin/hand baggage and your onward boarding pass you can use the dedicated airside connection buses.
Information on the official Gatwick website here:
Note that your documents will be checked and you and your cabin bags will go through security scanning. It's not just a simple matter of hopping on a bus and then hopping off again.
Easyjet close their gates at least 30 minutes before departure so even if you only have cabin baggage you'll have to move quickly.
If you have checked bags I'm afraid the answer to your question is almost certainly 'no', sorry. It's normally best to allow an hour at any European airport to de-plane, get from the gate to border control, get through border control, collect bags and be landside...plus, at Gatwick, another 10 mins or so to get to and use the terminal train. If you're lucky it might take less but there are no guarantees: everything depends on what other flights arrive at the same time, how many border control and baggage staff are on duty etc etc.
Easyjet bag-drop usually closes 40 minutes before departure so you would have to be at the North Terminal by 0945 at the very latest. Even then, allowing only 15 minutes to get through security and to the gate is, imo, very risky indeed. You might make it, you might not...there are often long queues at security, for obvious reasons.
Any inbound delay will reduce your chances of making the second flight, whether you have checked bags or not.
It's up to you whether decide to take the risk or pay now to change your outbound flight. If you miss the Easyjet flight you'll pay the highest fare for another flight on that day (or the day after), regardless of airline.
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