More than £1 billion in Covid-19 disruption refunds has been paid by Jet2.com and Jet2holidays to customers since the start of the pandemic in March.
This includes a period when the fleet was grounded due to travel restrictions.
More than 500 staff from across the business were proactively contacting customers to discuss and process their options.
Chief executive Steve Heapy said: “Our guiding principle of putting customers first will not change for anything, including the pandemic, and the feedback we have received shows we have done the right thing throughout.
“The reason we lead the industry when it comes to refunds is because we respect that the money is the customers’ until we have provided their flight or holiday.
“If we are unable to provide customers with the service that they have paid for, then we will promptly refund their money because it is the right thing to do and it is how you run a responsible business.”
He added: “We have now refunded more than £1 billion to customers since March, and during that time we have also worked tirelessly to help customers rebook and save their well-deserved holidays too.
“With 2021 looking more positive and customer confidence responding to news of a vaccine, we are looking ahead with real confidence.
“We know that our product, our strength, and the way we have treated customers will go a long way when it comes to choosing who to book with.”