Southwest Airlines via DealBase discounts select Southwest Airlines 1-Way Fares Nationwide, with prices starting at $46.98 during its Spring & Fall Travel Sale. (On the DealBase landing page, click on "Southwest Airlines" in the top line to see this sale.) That's the lowest price we could find for these routes by at least $7. (We saw 1-way fares starting at $2 less a month ago.) This price is valid for flights departing on April 19 from Abuquerque, NM, (ABQ), with arrival in Denver, CO, (DEN). Note that blackout dates and other conditions may apply. Book this travel deal by March 19 for travel from April 3 to October 31.

All prices, dates, and booking details were valid at the time of publication.