This morning, most domestic airlines updated their travel alerts, in some cases adding new cities to the list and in others, extending the days the alert covers.

Here’s the latest round-up of updated advisories from airlines:

Alaska Airlines is allowing travelers to change, postpone or cancel travel plans for tickets purchased on or before Jan. 20 for travel Jan. 22-24 to or from Baltimore/Washington International Airport (BWI), Boston Logan International Airport (BOS), Newark (EWR), New York JFK, Philadelphia International Airport (PHL), and Washington’s Dulles (IAD) and Reagan National (DCA) airports. The carrier will waive change fees and the difference in ticket price if new travel is booked and completed by Jan. 27, 2016.

In a travel alert updated Thursday morning, American Airlines relaxes change-fee policies for travel to/from or through more than 40 East Coast airports for passengers traveling on American and American Eagle flights Jan. 21-24 who rebook travel to the same city pairs, in the same class of service by Jan. 27, 2016.

Delta Air Lines’ Northeast Winter Weather advisory, updated this morning, applies now to more than 30 airports and reminds passengers that if their flights are canceled or significantly delayed, they are entitled to a refund.

For travelers with flights scheduled Jan. 24-26, the airline is allowing a one-time, fee-free change if the ticket is reissued on or before Jan. 27, 2016, and rebooked travel begins no later than Jan. 27.

Frontier Airlines’ storm alert covers travel from Jan. 21-24 to/from and through Philadelphia, Trenton-Mercer, N.J. (TTN), New York LaGuardia (LGA), Washington’s Dulles and Reagan National airports, Charlotte, N.C. (CLT), Raleigh-Durham, N.C. (RDU) and Greensboro, N.C. (GSO).

Passengers who purchased tickets on or before Jan. 19 may make one fee-free change and rebook for travel that must be completed by Jan. 31, 2016. Refunds will be issued for canceled flights.

This morning JetBlue updated its Winter Storm Jonas alert for the Mid-Atlantic and the Northeast.

In the Mid-Atlantic the airline is waiving change/cancel fees and the difference in airfare for customers with booked travel for Jan. 22-24, to or from BWI, Charlotte, N.C., Raleigh-Durham, N.C., Richmond, Va. (RIC) and Washington’s Dulles and Reagan National airports.

The airline’s alert says customers may rebook flights for travel through Jan. 29, 2016, and that customers with canceled flights can opt for a refund instead.

In the Northeast, JetBlue’s alert covers ticketed travel from Jan. 23 through Jan. 24 to or from Boston, Hartford Springfield, Conn. (BDL), New York LaGuardia, JFK and Newark, Newburgh, N.Y. (SWF), Philadelphia, Providence, R.I. (PVD), Westchester County, N.Y. (HPN) and Worcester, Mass. (ORH).

Customers may rebook flights for travel through Jan. 29, 2016, instead. Customers with canceled flights may opt for refunds.

This morning Southwest Airlines spokeswoman Melanie Jones said the airline's Network Operations Control Center Team was “actively monitoring the track and intensity of the storm and will make adjustments to flight schedules, as necessary, including canceling flights.”

In the meantime, the airline is advising customers holding reservations for travel Jan. 21-24 to, from and through (currently) 17 airports, including BWI, Boston, Charlotte, Greenville/Spartanburg (GSP), Little Rock (LIT), Long Island Islip (ISP), Louisville (SDF), Memphis, Nashville, Newark, New York LaGuardia, Philadelphia, Providence, Raleigh/Durham, Richmond, Washington Dulles and Washington Reagan National that they are eligible to reschedule their flights in accordance with the carrier’s accommodation procedures.

United Airlines’ updated travel waiver advisory now covers airports in more than 35 cities for ticketed travel from Jan. 22 through Jan. 24. “The change fee and any difference in fare will be waived for new flights departing on or before Jan. 20-27, 2016, as long as travel is rescheduled in the same cabin (any fare class) and between the same cities as originally ticketed,” the carrier notes on its website.


A pile of shoveled snow sits outside the U.S. Capitol on Jan. 21, 2016, as the East Coast prepares for a blizzard to arrive within the next 24 hours.