Northern Rail has issued a new timetable during RMT strike action on Friday 1 and Monday September 4.
This will potentially impact rail users planning to make the trip to the Blackpool Illuminations switch-on by train as the final services will depart Blackpool well before the event finishes.
Travellers will need to seek alternative travel options to get home.
Northern expects to run over 900 services on both strike days between 7am and 7pm, with final services on some routes finishing before 7pm.
Trains are expected to be extremely busy. Strike action is also taking place on Merseyrail.