Carrier route record
OHORD→TUL
PSA Airlines · Chicago to Tulsa
- Flights
- 153
- Period
- July 2025 to June 2026
- Share of route
- 7%
- Carriers
- 5
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on ORD to TUL draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 153 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 838 at 73.8% on time.
The national on-time rate over the same period is 77.6%, so PSA on ORD to TUL runs 11 points behind the country as a whole. Across a thousand flights that is about 105 extra late arrivals.
Key figures
On time
67.1%
Arrivals under 15 minutes late, of 146 completed flights
Avg delay
120 min
Across delayed arrivals only, not all flights
Cancelled
4.58%
National rate is 1.81%
Whole route
73.1%
Every carrier on ORD to TUL, 2,154 flights
These figures cover 153 flights between July 2025 and June 2026. Beyond the headline rate, 17.1% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
PSA against every carrier on ORD to TUL
PSA flew 153 of the 2,154 flights on ORD to TUL, about 7% of it. Its 67.1% on time is 6 points worse than the route as a whole, which runs 73.1%. Ranked by on-time rate it is number four of five carriers on the route, where the range runs from Republic at 87.7% to United at 53.5%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The two carriers here are closely matched: half a point separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 63 | 87.7% | 74 min | 9.52% | A− |
| Envoy Air | 838 | 73.8% | 59 min | 3.22% | C− |
| SkyWest Airlines | 1,057 | 73.5% | 73 min | 1.42% | C |
| PSA Airlines (this page)thin sample | 153 | 67.1% | 120 min | 4.58% | C− |
| United Airlinesthin sample | 43 | 53.5% | 70 min | 0.00% | F+ |
Envoy Air cancels 3.2% 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.
Departure window
When PSA runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 153 flights.
There are not enough flights in each departure window to split PSA's ORD to TUL record by time of day without the percentages moving on noise. The headline rate of 67.1% is the reliable figure here.
Across the year
PSA on ORD to TUL through the year
- Jul–Sep 202564 flights70.0%
- Oct–Dec 202584 flights64.2%
- Jan–Mar 20265 flights—
Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 67.1% on time across 153 flights.
Split by quarter, PSA on ORD to TUL logged 64 flights in Jul–Sep 2025, 84 flights in Oct–Dec 2025 and 5 flights in Jan–Mar 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 67.1% annual figure is the one to use.
Delay causes
Why PSA runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 59% of the 5,744 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 59%Late-arriving aircraft
- 24%Carrier
- 11%National Airspace System
- 7%Extreme weather
59% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,744 reported delay minutes here, that single category outweighs weather by 9 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,744 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 67.8% on time here.
Cancellations run at 4.58%, against 1.81% 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.1% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 585 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 56.8% on time across 153 flights, 10 points below 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 10 points of difference.
One caution: this is a thin sample. 153 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 TUL
Put together: the delay figures matter less here than the 4.58% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 146 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to TUL, every carrier
- PSA on TUL to ORD, the return leg
- Envoy Air on ORD to TUL73.8%
- SkyWest Airlines on ORD to TUL73.5%
- PSA Airlines network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.