Spirit Airlines is canceling all flights through Wednesday because of a pilots' strike.
Spirit aircraft haven't flown since pilots walked out on Saturday in a pay dispute. At one time the airline had hoped to keep flying through the strike.
Pilot union leader Sean Creed says no new talks are planned as of Monday.
Spirit carries about 16,000 passengers every day. The airline is offering customers credit for future flights, plus $100. But if they want refunds, customers have to call the airline and ask for one. Several calls to that number on Monday produced a busy signal.
Spirit is based in Miramar, Fla. It's the biggest carrier in Atlantic City, N.J., as well as Fort Lauderdale, Fla.