Virgin Trains has cancelled all its West Coast mainline services on Monday and Tuesday ahead of an anticipated strike by Network Rail workers over the Bank Holiday.
Members of the RMT and TSSA unions have voted for a 24-hour strike, starting at 5pm on Monday, amid an ongoing dispute over pay.
A spokeswoman for the company told ITV News that East Coast services - which are run by a different operator - would continue on a reduced timetable, and advised customers to check for the latest updates before travelling.
She said bosses were monitoring talks between Network Rail and the unions to see whether the situation may improve.
Anyone with tickets for those dates can use them for either the Sunday or Wednesday, in line with any restrictions on the tickets bought.
A refund is also available from the Virgin Trains website or by calling 0344 556 5650.
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