LONDON  Millions of British Airways customers breathed a sigh of relief Thursday after a British court ordered unions to call off a strike by cabin crew five days before it was scheduled to start.

Other travelers, however, may still have to brave disruption to their holiday travel plans as some baggage handlers at London Heathrow and Aberdeen airports and British drivers of the Eurostar train stick to plans for a strike.

The High Court ruled Thursday that a strike vote by Unite, the union that organizes the British Airways cabin crew, was invalid because it included workers who had already agreed to leave the airline.

British Airways sought the injunction to avoid a 12-day strike that would have started Tuesday, grounding as many as 7,000 flights and costing the airline millions of pounds.