Just to complicate this issue a bit more I once had a flight get delayed on day 4 due to a dead battery. Was due to depart about noon. Instead we took the out the same flight number the next day. The original flight never operated. So instead of flight XXXX on the XXth we flew flight XXXX on the XXth +1. Different flight.
We got an extra days pay AND RR pay.,

And you should have. When they choose to cancel your original instead of just delay it, you get paid. I wish even the delays got paid, but we don't have delay pay. On the bad ones where it's delayed into the next day, it's always weird seeing the paperwork reflecting your flight number and the previous day's date.

There's rarely any extra pay for reroutes within the footprint of the trip in this contract. Supposedly it's in the AIP though.

I had an ALPA scheduling guy tell me that RES can get reroute pay even if they don’t get in 4+ hours late. I think the reference is 23.M.4.

It does happen though. About 9 hours of 4F1R just hit my time card for the last trip I flew. I would say I get paid for 23 L.4.NOTE reroute pay within the footprint of trips about 3 or 4 times per year.

There are several ways Reserve can get RR pay other than 4+ hours late/X-day interruption.

One is 23.L.4.Note (uncovered legs over 14 hours must go to Open Time).

Another is 23.L.11.c for an illegal turn time. It has to be a legal turn time at the time of reroute. Each station has a proprietary number, but a 10 minute turn ain’t legal anywhere.

There is a :22 turn published in a bid package for a trip next month. It's a fly in and switch planes to a DH too. No human with any operational knowledge could look at that and think it's a good plan.

I saw a number of questionable things in the Feb bid packet. Some teeth for the RCC can't come fast enough.

SEA 73N 4057/4058 look like fun.

Saw a number of them like that in the 320 bid pack as well. Pretty much every redeye I saw is preceded by a 12-14 hour dayover. Some even had a double swap where you start early on day 1. Long duty day on day 2 to finish late-ish (after dinner time) for a short layover then early report on day 3 for one leg to a layover done at 8am so you can report at 10pm to fly a redeye. Very unsat.
DTW 320 6354 and L668 are good examples. If the suck. Lots of <12 hr layovers to boot.