Carrier route record
OOORD→TUL
SkyWest Airlines · Chicago to Tulsa
- Flights
- 1,057
- Period
- July 2025 to June 2026
- Share of route
- 49%
- Carriers
- 5
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on ORD to TUL sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 1,057 flights, with a median arrival 3 minutes early.
The national on-time rate over the same period is 77.6%, so SkyWest on ORD to TUL runs 4 points behind the country as a whole. Across a thousand flights that is about 41 extra late arrivals.
Key figures
On time
73.5%
Arrivals under 15 minutes late, of 1,040 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
1.42%
National rate is 1.81%
Whole route
73.1%
Every carrier on ORD to TUL, 2,154 flights
These figures cover 1,057 flights between July 2025 and June 2026. Beyond the headline rate, 9.6% 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
SkyWest against every carrier on ORD to TUL
SkyWest flew 1,057 of the 2,154 flights on ORD to TUL, about 49% of it. Its 73.5% on time is about level with the route as a whole at 73.1%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from Republic at 87.7% to United at 53.5%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| 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 (this page) | 1,057 | 73.5% | 73 min | 1.42% | C |
| PSA Airlinesthin sample | 153 | 67.1% | 120 min | 4.58% | C− |
| United Airlinesthin sample | 43 | 53.5% | 70 min | 0.00% | F+ |
Flight by flight
SkyWest flight numbers on ORD to TUL
Departure window
When SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 40 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am44 flights77.3%
- 8am–11am347 flights77.2%
- 11am–2pm415 flights77.3%
- 2pm–5pm37 flights37.8%
- 5pm–8pm19 flights—
- 8pm–5am195 flights65.8%
Scale runs 30% to 85%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 77.3% of the time, against 37.8% for the afternoon window. That is 40 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 415 flights scheduled in it.
Across the year
SkyWest on ORD to TUL through the year
December is the weak month at 61.8% on time, against 87.4% 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. July was the busiest month here, with 122 flights.
Across the week, Thursday is the strongest day at 78.1% on time and Friday the weakest at 69.9%. 8 points is a smaller lever than departure hour, but it is free.
Delay causes
Why SkyWest runs late on this route
One category carries most of the weight here. Carrier accounts for 43% of the 20,000 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.
- 43%Carrier
- 30%Late-arriving aircraft
- 17%National Airspace System
- 11%Extreme weather
The largest share of delay minutes, 43%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 8,657 of the 20,000 delay minutes reported here. The split is drawn from 20,166 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 77.3% on time here.
Cancellations sit at 1.42% against a national 1.81%, which is ordinary. Diversions add another 0.19%.
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. 9.6% 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 78.4% on time across 1,057 flights, 5 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 5 points of difference.
One caution: this is a thin sample. 1,057 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 SkyWest on ORD to TUL
Put together: treat all of this as provisional. 1,057 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 73.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 1,040 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to TUL, every carrier
- SkyWest on TUL to ORD, the return leg
- Envoy Air on ORD to TUL73.8%
- PSA Airlines on ORD to TUL67.1%
- SkyWest Airlines network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The best time of day to fly, according to 7.04 million flight records
- How often a connection fails at the major US hubs
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.