(This article has been updated with the latest information.)

As Hurricane Helene steadily approaches the U.S., airlines are starting to cancel flights in preparation.

So far, over 450 flights across the U.S. have been canceled for Thursday, affecting most flights to and from Tallahassee, over half of the flights in and out of Tampa, and about one-third of flights in and out of Fort Myers, as per the online flight tracker FlightAware.

According to the National Hurricane Center, “Destructive hurricane-force winds are anticipated in areas of northern Florida and southern Georgia where Helene’s core is expected to make landfall.”

Travelers whose flights are canceled for any reason qualify for a refund, but those who wish to change their travel plans due to the storm have more options.

Here’s what some of the major U.S. airlines are offering their customers in light of Helene’s impending arrival.

Alaska Airlines

Passengers with Alaska Airlines flights booked to and from the following airports between September 25 and September 27 can change or cancel their flights without any fees.

• Cancun, Mexico (CUN)
• Fort Myers, Florida (RSW)
• Orlando, Florida (MCO)
• Tampa, Florida (TPA)

Travelers need to alter or cancel their flights before the scheduled departure. The new travel date should be on or before September 30. If they decide to cancel, customers will receive a credit for future travel. More details are available on Alaska Airlines’ website.

American Airlines

Customers with American Airlines flights scheduled to, through, or from the following airports until September 27 can also rebook their flights at no additional charge.

• Cancun, Mexico (CUN)
• Cozumel, Mexico (CZM)
• Daytona Beach, Florida (DAB)
• Destin-Fort Walton Beach, Florida (VPS)
• Fort Lauderdale, Florida (FLL)
• Fort Myers, Florida (RSW)
• Gainesville, Florida (GNV)
• Grand Cayman, Cayman Islands (GCM)
• Havana, Cuba (HAV)
• Jacksonville, Florida (JAX)
• Key West, Florida (EYW)
• Melbourne, Florida (MLB)
• Miami, Florida (MIA)
• Mobile, Alabama (MOB)
• Orlando, Florida (MCO)
• Panama City, Florida (ECP)
• Pensacola, Florida (PNS)
• Santa Clara, Cuba (SNU)
• Sarasota/Bradenton, Florida (SRQ)
• Tallahassee, Florida (TLH)
• Tampa, Florida (TPA)
• Varadero, Cuba (VRA)
• West Palm Beach, Florida (PBI)

Rebooked travel must be completed by October 4, within the same fare class and cities originally booked to waive any fees. More information can be found on American Airlines’ website.

Breeze Airways

Passengers traveling with Breeze on the following routes from September 25 to September 27 can rebook or cancel their flights for flight credit without any charges.

• Fort Myers, Florida (RSW)
• New Orleans, Louisiana (MSY)
• Orlando, Florida (MCO)
• Sarasota/Bradenton, Florida (SRQ)
• Tampa, Florida (TPA)
• Vero Beach, Florida (VRB)

When rebooking, travelers must select new travel dates that fall within 14 days of their original departure date to avoid extra fees. They can also choose to cancel their flights for redeemable flight credit. Further details can be found on Breeze’s website.

Delta Air Lines

Passengers with Delta flights scheduled to and from the following airports from September 25 to September 27 can modify their bookings at no cost.

• Cancun, Mexico (CUN)
• Daytona Beach, Florida (DAB)
• Fort Myers, Florida (RSW)
• Fort Walton Beach, Florida (VPS)
• Havana, Cuba (HAV)
• Hilton Head Island, South Carolina (HHH)
• Jacksonville, Florida (JAX)
• Key West, Florida (EYW)
• Mobile, Alabama (MOB)
• Panama City, Florida (ECP)
• Pensacola, Florida (PNS)
• Sarasota, Florida (SRQ)
• Tallahassee, Florida (TLH)
• Tampa, Florida (TPA)
• Valdosta, Georgia (VLD)

Travelers need to reissue their tickets by the end of October 4, and their travel must be finished by the same date to avoid fare differences. If travelers can’t fly by October 4, they may have to pay fare differences, although change charges will be waived.

Moreover, those flying to, from, or through Atlanta on September 27 can change their flights until October 1 for travel beginning before or on October 1, free of charge. Fare differences could apply for travel scheduled after October 1.

If passengers opt to cancel, they will receive a flight credit valid for one year from the date of the ticket’s original issuance. More details are available on Delta’s website.

Frontier Airlines

For those flying Frontier to and from the specified airports, rebooking can be done without incurring change fees, though fare differences may be applicable.

Flights booked through September 25:

• Cancun, Mexico

Flights booked for September 26 or 27:

• Fort Myers, FL (RSW)
• Jacksonville, FL (JAX)
• Orlando, FL (MCO)
• Pensacola, FL (PNS)
• Sarasota, FL (SRQ)
• Tampa, FL (TPA)

If travelers decide to cancel their flights, they are eligible for travel credit after deducting any cancellation or carrier fees, as per the airline’s policy. For more information, visit Frontier’s website.

JetBlue Airways

Passengers with JetBlue flights departing or arriving at the following airports from September 26 to September 27 can change or rebook their flights at no additional cost.

• Atlanta, GA (ATL)
• Charleston, SC (CHS)
• Fort Myers, FL (RSW)
• Jacksonville, FL (JAX)
• Orlando, FL (MCO)
• Sarasota, FL (SRQ)
• Savannah, GA (SAV)
• Tallahassee, FL (TLH)
• Tampa, FL (TPA)

New flights must be scheduled no later than October 2, or customers can opt for a full refund back to their original payment method. Additional details are available on JetBlue’s website.

Southwest Airlines

Passengers traveling with Southwest Airlines can rebook or fly standby without any extra charge within 14 days of their original travel dates if they had flights scheduled at the following airports.

Flights scheduled until September 25:

• Cancun, Mexico (CUN)
• Havana, Cuba (HAV)

Flights scheduled by September 27:

• Destin-Fort Walton Beach, FL (VPS)
• Fort Myers, FL (RSW)
• Jacksonville, FL (JAX)
• Orlando, FL (MCO)
• Panama City Beach, FL (ECP)
• Pensacola, FL (PNS)
• Sarasota/Bradenton, FL (SRQ)
• Tampa, FL (TPA)

Flights scheduled for September 26 and 27:

• Atlanta, GA (ATL)
• Charleston, SC (CHS)
• Fort Lauderdale, FL (FLL)
• Greenville/Spartanburg, SC (GSP)
• Miami, FL (MIA)
• Myrtle Beach, SC (MYR)
• Nashville, TN (BNA)
• West Palm Beach, FL (PBI)

Travel must occur between the same cities as originally booked to avoid additional charges. If customers choose not to travel, they can either request a refund for the unused part of their ticket or keep the credit for future flights. Further details can be found on Southwest’s website.

Spirit Airlines

Spirit Airlines passengers with flights scheduled at the airports below can rebook without any penalties if they travel by October 2.

Flights scheduled until September 25:

• Cancun, Mexico

Flights scheduled between September 25 and 27:

• Fort Myers, FL (RSW)
• Orlando, FL (MCO)
• Pensacola, FL (PNS)
• Tampa, FL (TPA)

Please note that fare differences will apply for travel after October 2. More information can be found on Spirit’s website.

United Airlines

United Airlines passengers with scheduled flights at the following airports before September 27 can rebook their flights free of charge.

• Cancun, Mexico (CUN)
• Cozumel, Mexico (CZM)
• Fort Myers, FL (RSW)
• Havana, Cuba (HAV)
• Jacksonville, FL (JAX)
• Key West, FL (EYW)
• Orlando, FL (MCO)
• Panama City, FL (ECP)
• Pensacola, FL (PNS)
• Sarasota/Bradenton, FL (SRQ)
• Tampa, FL (TPA)
• Tulum, Mexico (TQO)

United will eliminate change fees and fare differences for travel completed by October 4 if within the same fare class and between the same cities as booked originally. For more details, please visit United’s website.

Travelers who have flights on other airlines, such as Allegiant, should reach out to their carriers for specific policies.