United has round-trip flights from Dallas (DFW) to Aspen, Grand Rapids, Eugene, Oregon, or Jackson, Wyoming (ASE, GRR, EUG, JAC) for $157-$172 with a connection. Grand Rapid flights December to September. Aspen flight January to September. Eugene flights January, February, April, May, August, and September. Jackson flights January, February, and April. Origin/Destination reversible. No Christmas dates available.
United’s “Basic Economy” fares do not allow for a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding.
The personal item size on United is smaller (9 x 10 x 17 inches) than Frontier or Spirit (8 x 13 x 18 inches).