Originally Posted by alex67500

Have you tried using the multi-city tool and breaking it up in 2? DFW-MIA-JFK, and then JFK-LAX-SFO? The Matrix sometimes stumbles when there are too many segments.

Also, there are rules you need to look into:

• maximum permitted mileage;
• maximum number of flights on a fare;
• limitations on how many times you can cross the continent. If DFW is considered "West", you won't be able to find a single fare where you go West-East-West out and then same again on the way back. What you could do is construct 2 nested trips, but that's beyond the scope of your question and this thread.