( CNN ) -- Airlines are uncertain about when commercial service to disaster-ravaged Haiti will resume . Spirit Airlines cancels its Thursday and Wednesday flights to Fort Lauderdale . American Airlines : `` We do n't know when we 'll be able to get flights in and out '' Carriers plan to assist in transporting relief supplies , offer fundraising incentives .
Spirit Airlines cancels its Thursday and Wednesday flights to Fort Lauderdale . American Airlines : `` We do n't know when we 'll be able to get flights in and out '' Carriers plan to assist in transporting relief supplies , offer fundraising incentives .