Carrier route record
OHORD→DAY
PSA Airlines · Chicago to Dayton
- Flights
- 562
- Period
- September 2025 to August 2026
- Share of route
- 31%
- Carriers
- 5
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on ORD to DAY draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is about 2.7 hours behind schedule. Build slack into anything you connect to. That rests on 562 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 467 at 76.1% on time.
The national on-time rate over the same period is 77.3%, so PSA on ORD to DAY runs 17 points behind the country as a whole. Across a thousand flights that is about 168 extra late arrivals.
Key figures
On time
60.5%
Arrivals under 15 minutes late, of 531 completed flights
Avg delay
162 min
Across delayed arrivals only, not all flights
Cancelled
5.52%
National rate is 1.89%
Whole route
66.2%
Every carrier on ORD to DAY, 1,815 flights
These figures cover 562 flights between September 2025 and August 2026. Beyond the headline rate, 23.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
PSA against every carrier on ORD to DAY
PSA flew 562 of the 1,815 flights on ORD to DAY, about 31% of it. Its 60.5% on time is 6 points worse than the route as a whole, which runs 66.2%. Ranked by on-time rate it is last of five carriers on the route, where the range runs from United at 80.9% to PSA at 60.5%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Envoy Air arrives on time 76.1% of the time; SkyWest Airlines manages 61.1%. Sample sizes sit next to every figure, because a two-point gap across 622 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlinesthin sample | 69 | 80.9% | 80 min | 1.45% | B |
| Envoy Air | 467 | 76.1% | 68 min | 3.21% | B− |
| Republic Airwaysthin sample | 95 | 72.7% | 65 min | 7.37% | C− |
| SkyWest Airlines | 622 | 61.1% | 81 min | 5.31% | D− |
| PSA Airlines (this page) | 562 | 60.5% | 162 min | 5.52% | D− |
SkyWest Airlines cancels 5.3% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When PSA runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 30 points, against 15 points between the best and worst carrier.
- 5am–8am—
- 8am–11am243 flights63.8%
- 11am–2pm37 flights61.8%
- 2pm–5pm44 flights81.8%
- 5pm–8pm192 flights52.0%
- 8pm–5am46 flights54.8%
Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 52.0% on time, against 81.8% for the 2pm–5pm slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 243 flights scheduled in it.
Across the year
PSA on ORD to DAY through the year
January is the weak month at 52.4% on time, against 67.9% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. January was the busiest month here, with 90 flights.
Across the week, Saturday is the strongest day at 64.6% on time and Thursday the weakest at 57.1%, a spread of 7 points.
Arrival by arrival
How late PSA on ORD to DAY runs when it is late
When PSA on ORD to DAY is late it tends to be very late: 126 of its 210 late arrivals were an hour or more behind, and 80 were two hours or more.
- 15+ min early101 flights19.0%
- Within 15 min220 flights41.4%
- 15–29 min late33 flights6.2%
- 30–59 min late51 flights9.6%
- 1–2 hours late46 flights8.7%
- 2+ hours late80 flights15.1%
Scale runs 0% to 100%.
Share of 531 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 197 departures that left 15 minutes late or more, only 15 made it up before arrival. In the other direction, 28 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DAY.
The worst days
Worst days for PSA on ORD to DAY
The latest arrival of the period was on 23 January 2026, 25 hours 20 minutes behind schedule; most of its delay minutes were filed as extreme weather. On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 January 2026 | 25 hours 20 minutes | Extreme weather |
| 9 April 2026 | 24 hours 47 minutes | Late-arriving aircraft |
| 13 December 2025 | 24 hours 45 minutes | Late-arriving aircraft |
| 4 December 2025 | 23 hours 6 minutes | Late-arriving aircraft |
| 19 February 2026 | 18 hours 29 minutes | Late-arriving aircraft |
Delay causes
Why PSA runs late on this route
Late-arriving aircraft accounts for 66% of the 34,000 delay minutes carriers reported here, and the remaining four split what is left.
- 66%Late-arriving aircraft
- 17%Carrier
- 10%Extreme weather
- 7%National Airspace System
- 0%Security
66% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 34,000 reported delay minutes here, that single category outweighs weather by 7 to one. The split is drawn from 33,945 reported delay minutes.
Cancellations run at 5.52%, against 1.89% nationally. That is roughly one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
23.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
At 240 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 2pm–5pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 75.0% on time across 561 flights, 15 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 15 points of difference.
One caution: this is a thin sample. 562 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking PSA on ORD to DAY
Put together: the delay figures matter less here than the 5.52% cancellation rate. A late arrival costs you about 2.7 hours; a cancelled flight costs you the day. Book the 2pm–5pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 531 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to DAY, every carrier
- PSA on DAY to ORD, the return leg
- Envoy Air on ORD to DAY76.1%
- SkyWest Airlines on ORD to DAY61.1%
- PSA Airlines network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- Same route, different airline: where the carrier you pick matters most
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.