Update: Some offers mentioned below are no longer available. View the current offers here.After dumping a record 40 inches of snow at Flagstaff airport, a strong winter storm dubbed Quiana by The Weather Channel is sweeping east. Flights are expected to be impacted through the weekend in the Plains and Midwest due to potentially blizzard-like conditions.In Tucson on Friday, a reporter caught a glimpse of the rare heavy snowfall at the airport – and the de-icing crews trying to keep up:Thankfully, you’ve got options if you’re traveling this weekend — even if you didn’t book the trip with a credit card that provides trip delay expense reimbursement from weather-related delays and cancellations.Many airlines have issued travel waivers that allow flexible travelers the option to rebook their flights — whether that’s through a different connecting airport or on a different travel date. After all, airlines don’t want you stuck sleeping on the airport floor either.Through 10am ET Saturday, you have change fee waiver options on American, Delta, Frontier and Southwest for flights Feb. 23 and onward:Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.American AirlinesTravel dates: Feb. 23-24Airports covered: Appleton, Wisconsin (ATW); Cedar Rapids, Iowa (CID); Des Moines, Iowa (DSM); Dubuque, Iowa (DBQ); Duluth, Minnesota (DLH); Grand Island, Nebraska (GRI); Green Bay, Wisconsin (GRB); La Crosse, Wisconsin (LSE); Madison, Wisconsin (MSN); Marquette, Michigan (MQT); Milwaukee, Wisconsin (MKE); Minneapolis / St. Paul, Minnesota (MSP); Moline, Illinois (MLI); Omaha, Nebraska (OMA); Rochester, Minnesota (RST); Sioux City, Iowa (SUX); Sioux Falls, South Dakota (FSD); Traverse City, Michigan (TVC); Waterloo, Iowa (ALO); Wausau, Wisconsin (CWA)Must have purchased your ticket by Feb. 22Rebook travel anytime between Feb. 23-27You can’t change your origin or destination city. Must rebook in same cabin or pay the difference.Avoid the phone queue. Changes available on both AA’s website and in the AA app.DeltaMidwestern US Winter WeatherTravel dates: Feb. 23-24Airports covered: Appleton, WI (ATW); Brainerd, MN (BRD); Des Moines, IA (DSM); Duluth, MN (DLH); Escanaba, MI (ESC); Green Bay, WI (GRB); Iron Mountain, MI (IMT); La Crosse, WI (LSE); Lincoln, NE (LNK); Marquette, MI (MQT); Minneapolis/St. Paul, MN (MSP); Omaha, NE (OMA); Pellston, MI (PLN); Rhinelander, WI (RHI); Rochester, MN (RST); Sault Ste Marie, MI (CIU); Sioux Falls, SD (FSD); Wausau, WI (CWA)Ticket must be reissued on or before: Feb. 27Rebooked travel must begin no later than: Feb. 27Must have purchased ticket by: Feb. 22When rescheduled travel occurs beyond Feb. 27, the change fee will be waived. However, a difference in fare may apply. Final travel must be completed by end of ticket validity, one year from date of original issue.FrontierTravel date: Feb. 23Airports covered: Cedar Rapids, IA (CID); Des Moines, IA (DSM); Madison, WI (MSN); Milwaukee, WI (MKE); Minneapolis, MN (MSP); Omaha, NE (OMA); Sioux Falls, SD (FSD)Original travel must have been booked on or before Feb. 22Travel must be completed no later than March 8Customers may make one itinerary change – rules/restrictions regardimng standard change fees, advance purchase, day or time applications, blackouts, and minimum or maximum stay requirements will be waived.Origin and destination cities may be changedSouthwestMidwest Winter WeatherAirports covered (Feb. 23): Chicago, IL (MDW); Cincinnati, OH (CVG); Grand Rapids, MI (GRR)Airports covered (Feb. 23-24): Des Moines, IA (DSM); Milwaukee, WI (MKE); Minneapolis/St. Paul, MN (MSP); Omaha, NE (OMA)Southeast WeatherTravel date: Feb. 23Airports covered: Birmingham, AL (BHM); Little Rock, AR (LIT); Louisville, KY (SDF); Memphis, TN (MEM); Nashville, TN (BNA)Customers who are holding reservations to/from/through the cities above on the corresponding dates may rebook in the original class of service or travel standby (within 14 days of their original date of travel between the original city-pairs and in accordance with [Southwest’s] accommodation procedures) without paying any additional charge.No current waivers (yet) from: Alaska, JetBlue, Spirit, UnitedProtect Your TravelsThis winter storm is another reminder to book flights with a card that offers solid trip delay and cancellation insurance. Cards with solid trip protection include the Chase Sapphire Reserve and Chase Sapphire Preferred Card.