Strikes by 4,000 Heathrow airport workers on Friday and Saturday have been called off so they can vote on a new pay offer. The strikes would have hit flights on one of the busiest weekends of the summer. Frontline staff have been offered a 7.3% pay increase over two-and-a-half years. Two more 48-hour strikes from August 5 and August 23 are still on the table until the result of the vote is known. Should the pay offer be accepted, those strikes would also be called off.