AA: DFW-DEN, $48 r/t
 

There are a few dates available for this impressively low fare.

Sample dates: 29AUG - 30AUG, $48.

Need a same-day turn? You'll need to shell-out big bucks:

Sample dates: 04NOV - 04NOV, $64.

How does an airline make money from such a fare?
the uber to the airport costs more than the one way fare!

Wow, that was quick! The low fares in AUG are gone. But still a few dates in SEP/OCT. Q0ALZNN3, a $20 base fare, is what you're looking for.

Sample dates: 12SEP - 13SEP, $48.

ETA: Just noticed that this fare runs into the new year; Sample dates: 06FEB - 07FEB, $49.

Good find! Booked in January for a 3 day trip. Some of the dates have pretty bad flights (only a 5 AM) but others had multiple reasonable options. I have been flying this route for $99 this year and thought that was pretty good so this is great! 220 RDMs as EXP!!!

Well, as an EXP, just do a SDC to a later flight!

Like you, I have done several of these lately, and never took the flight I originally booked.

I need this for April 7-8, 2024. :D

(Assuming it works in reverse, too.)

Even lower!
 

Now down to an unbelievable $44 for several dates in the new year.

Sample dates: 23JAN - 24JAN.

DFW-LAX/ORD/MSP now down to $73.