A man walks past a half-completed 236-foot FAA control tower at Oakland International Airport . (Justin Sullivan/Getty Images)

While it means around 74,000 workers are waiting to head back to their jobs and there could be a loss of around $1.2 billion in ticket tax revenue, there may be a slight, immediate monetary reward for every day airline passengers: people who buy tickets while the FAA is out of work, won’t have to pay the ticket tax.

For some fliers, that means a refund from airlines that charged the tax, even though they wouldn’t have to pay the government. Anyone who flew on or after July 23 could be eligible, though only two airlines so far, Delta and US Airways, have agreed to offer customer refunds.

For other passengers, the IRS announced it would allow claims to be submitted directly to the agency, though it has not finalized how the claims will be paid.

You will need to hold on to your tickets and receipts to get the refund. Find out more from the IRS claim here.