Most buses operated normal services on Saturday although First only ran on main roads.
The strike period begins at 13:00 GMT and normal services are expected to resume at 18:30.
After 2017 BST, normal services in both directions stopping at all stations, including Wembley Central, resumed.
The NHS remains on red alert and normal services are not expected to resume until next week.
Our customers can look forward to normal services over Christmas and to travel to be with family and friends.
Other airports were reporting near-normal services following a day of cancellations and delays on Monday, although passengers were advised to check with operators before travelling.
Public transport operators say they are hoping to resume "near normal" services throughout Saturday.
Jocelyn Rankin, of Northern Rail, said it was too early to say how long be before normal train services resume.
BBC: Salford rail delays after train derailed and caught fire
Other benefits include reducing HIV-related stigma and discrimination, since addressing HIV will be part of normal core services within a health facility.
Banks would become money warehouses with the addition of normal account services.
FORBES: The Unintended Consequences Of The Greatest Economic Experiment
And at least one pro-hunting clergyman has cancelled his normal Sunday services so that his parishioners will not have to choose between God and mammal.
In Mumbai, the country's financial hub, taxi, bus and train services were normal.
Responding to an urgent question, Edwin Poots said emergency services continued as normal at Altnagelvin Hospital.
The airport hopes to have services back to normal by Monday morning, providing there are no more computer problems.
London Midland trains said it was running a normal service, although five services have been altered due to weather conditions.
Lloyds Coaches which serves Powys said all of its services were operating as normal.
The line later reopened but passengers faced delays while services got back to normal.
The Ulster Bank has said it expects services to return to normal by Monday.
Network Rail sent engineers to Cambridge and the services were back to normal by the afternoon.
She said the backlog will be dealt with and services should return to normal within the next two to three weeks.
First Bus said all services were operating as normal and Stagecoach has made a few timetable changes because of the conditions.
East Midlands Trains said services were running as normal but advised passengers to check their train is running before travelling.
He said patient services would run as normal during the strike action.
Services were back to normal on Saturday but there may be some delays on East Coast routes because of engineering work in Yorkshire.
BBC: Cambridgeshire Police warn of ice patches on some roads
Stagecoach said services had returned to normal, but the speed restriction would be in place around the area of the accident until repairs could be carried out.
Although airlines gave warning that it would take several days for services to return to normal and for all passengers to be flown home, the crisis was over.
But correspondents say it is not clear how quickly services will be restored to normal.
应用推荐