Another one from Southwest: Today only, save on flights to Denver, Tucson, Phoenix, and Salt Lake City. This offer is good for travel on Tuesdays, Wednesdays, and Saturdays, from April 17 through May 23.

Tickets require a 14-day advance purchase. Offer not available to/from Ft. Lauderdale, FL; Ft. Myers, FL; Greenville/Spartanburg, SC; Long Island, NY; Jackson, MS; Midland/Odessa, TX; Panama City Beach, FL; Providence, RI; West Palm Beach, FL.

All tickets must be purchased by 11:59pm PT, March 27. Fares include:

Baltimore to Denver $292 round-trip, including all taxes

Jacksonville to Denver $316 round-trip, including all taxes

Boise to Denver $202 round-trip, including all taxes

Burbank to Denver $222 round-trip, including all taxes

Detroit to Denver $244 round-trip, including all taxes

Indianapolis to Denver $234 round-trip, including all taxes

Corpus Christi to Denver $324 round-trip, including all taxes