Round trip Denver to Cancun for $394

Delta Air Lines has round trip economy lite fares from Denver (DEN) to Cancun Mexico (CUN) for $394. This is a significant price drop from the original price of $463, saving $69 or about 15%. The fares include a carry-on bag and personal item, but no seat selection or change options, which is typical for basic economy. To find flights, filter for 'Delta Only' on Expedia. Be sure to select Delta as the airline to ensure baggage inclusion. Travel dates are available throughout September to December 2026, offering some flexibility. You can book via Expedia or Delta's website, with prices subject to change based on demand and dates. This deal is noteworthy given the savings and limited travel window.