(Dallas, TX)  —  Southwest Airlines is playing catchup after two days in a row of computer glitches that grounded hundreds of flights nationwide.

On Monday, the Dallas-based carrier had a weather computer problem, and on Tuesday it was an issue with network connectivity that affected bag checking.  The airline says the two unrelated problems have both been resolved.

Southwest canceled more than 300-flights across the U.S. on Wednesday, and is still experiencing delays.

An industry expert says it may take 48-hours for the airline to get back on track.