The RMT rail union has said that planned strike action by West Coast train managers over Christmas has been called off.
The walkouts announced earlier this week were planned for December 22, 23 and 29, but the action will not go ahead.
The union said a new offer had been made which would now go to training managers.
Even if they reject the offer, the law requires unions to give at least two weeks’ notice of strike action, so no action will take place until the new year.
The revised offer includes more rest day pay and other changes to working arrangements.
A union spokesman said this included a more systematic distribution of work on rest days.
The RMT said train managers would vote on the offer in a referendum ending on December 17.
Train managers normally work 41 hours a week but may be asked to work on holidays due to staff shortages.
The RMT said the situation was “unacceptable”.
Around 300 train managers were expected to join the walkout, with train services curtailed over the three days.
Avanti operates services to London and Glasgow and Edinburgh, as well as stations including Birmingham, Liverpool and Manchester.
Avanti West Coast said it was “delighted that the RMT has decided to suspend these strikes which would have caused major disruption to our services”.
“This will come as a relief to our customers who were making travel plans over the Christmas period,” it said, adding that it was open to discussions with the union.