Despite generally good weather around the country, Delta canceled nearly as many flights today as Spirit did… and Spirit didn’t fly. I don’t know what’s going on, but Delta is unarguably losing its edge when it comes to operational reliability.

Delta canceling lots of flights on Friday & Saturday

Delta is having some issues with operational reliability at the moment. Yesterday, Friday, May 1, 2026:

• Delta canceled 157 flights (4% of schedule) and delayed 631 flights (17% of schedule)
• United canceled 24 flights (0% of schedule) and delayed 815 flights (26% of schedule)
• American had a great day, and had no real issues

Today, Saturday, May 2, 2026, things are looking worse for Delta. As of 4PM ET:

• Delta canceled 204 flights (6% of schedule) and delayed 363 flights (11% of schedule)
• United canceled nine flights (0% of schedule) and delayed 268 flights (9% of schedule)
• American canceled four flights (0% of schedule) and delayed 470 flights (13% of schedule)

Just for reference, Spirit canceled 277 flights today (it ceased operations), so by the time the day is over, Delta might almost be caught up with Spirit when it comes to the number of cancellations.

It’s of course worth acknowledging that United saw a fair number of delays, but that’s not nearly as bad as cancellations. After all, a delayed flight is simply one that arrives at the gate 15 or more minutes late, and that’s pretty common.

What’s causing Delta’s operational issues?

Airlines do everything they can to avoid canceling flights, especially since it counts against them when it comes to Department of Transportation (DOT) statistics. Delta especially tries to avoid canceling flights, as the airline loves to brag about how operationally reliable it is.

But now Delta has canceled close to 400 flights across two days, with seemingly no major weather issues. And as you can see, the airline is canceling 4-6% of its schedule when competitors cancel 0% of their schedules.

What do we know about the cause of this? JonNYC reports that the reason for most of these cancellations is “crew restrictions,” which is of course vague. But obviously there aren’t sufficient crew to operate all scheduled flights.

In recent times, Delta has had some worse operational issues than competitors, even in situations where weather can’t be blamed. The airline has also generally taken longer to recover from meltdowns than other airlines.

Several months ago, I wrote about how Delta’s pilot scheduling software majorly hurts the airline when things go wrong, and one can’t help but wonder if that’s also what’s at play here. No matter how you slice it, this is pretty embarrassing for “the on-time machine,” as Delta likes to call itself.

While not directly related, JonNYC also points out how the Department of Transportation (DOT) has just published cancellation statistics for January 2026 (this always comes with a delay), and Delta ranked six of major nine airlines. That’s not exactly industry leading performance.

Bottom line

Delta isn’t doing so well when it comes to operational reliability, as the airline canceled 4% of its schedule yesterday, and 6% of its schedule so far today (and counting), despite no major weather issues, and despite competitors canceling 0% of their flights.

This seems to be due to “crew restrictions,” though we don’t know anything beyond that. There’s no denying that Delta has lost its touch when it comes to leading the industry with operational performance. Hopefully the airline does something to improve this. Though at least publicly, it seems management just wants to pretend everything is still perfect?

What do you make of Delta’s operational issues?