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As expected the hourly delay rates stayed elevated throughout the afternoon, even when we just look at delays >15 mins. Tomorrow will likely be the first day that looks more normal. 🗓️

This is what we should be seeing in terms of predicted disruption rates for the remainder of today, but so far delays are where we see the most concern:

Current snapshot of cancellation and delay rates: Cancellations trending ~30%-10% Delays on the other hand are staying ~50% Cancellations are coming down, but delays higher than they started yesterday and will likely rise all day long 📈

Southwest has done their usual mass delays upfront. They aren’t all looking too great versus what we hoped.🫤

It’s official: The period between Friday and today is officially the #1 all-time worst tech driven outages in terms of flight cancellations ⬇️

Sunday is starting off decent in comparison to yesterday so far: B6: 27% ❌ AA: 10% ❌ DL: 4% ❌ WN: 3%❌ UA: 3%❌ AS: 1% ❌ Delays for each airlines vary, but all sit <20% which is more normal.

As the day winds down, that was a historic BRUTAL day. Operating the entire US airspace at 80% delayed or canceled is max pain. But it got us on decent footing for tomorrow, to stretch for recovery Monday.

UA and DL have added their cancellations for tomorrow morning. AA: 582 (9%) UA: 315 (6%) DL: 262 (5%) WN: 48 (1%) I'd still expect more added throughout the day, but nothing like today.

AA just issued a block of cancellations. - cancelled 30% for the rest of today - cancelled 7% (250 flights) for tomorrow already Not great for tomorrow. Let's see if UA and DL follow.

Scratch the whole 0 cancellations bit. Over +500 cancellations so far for tomorrow. Still not nearly as impactful as we’ve seen, but not a great sign either 😳

Not a single oasis to be seen. :( flighty.com/airports

Cancellations have dropped to ~10% per hour, but nationwide ~2 hour delays remain. Tonight: ~2 hour delays across the board Tomorrow: Nearly zero cancellations so far. 👏 That's the goal now.

Airlines just can't catch up. At this point the hope is to end the night with planes at the planned airport, and take a fresh try tomorrow.

The current ATC outage has now surpassed 2024's CrowdStrike outage as the #2 tech-driven outage of all-time, measured by cancelled flights. It will very likely be #1 by tomorrow.

So far it's not improving much. 60-70% of flights are delayed or cancelled as each hour passes. UA is possibly getting ahead of it. WN tends to preemptively delay the entire day like that. The others will "cascade" onward. Hoping for improvements in afternoon block.

FAA Admin stated he and the airlines feel confident Sunday should be back to normal. We’ll be tuning in 👀

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