Carrier route record
UAORF→ORD
United Airlines · Norfolk to Chicago
- Flights
- 690
- Period
- July 2025 to June 2026
- Share of route
- 37%
- Carriers
- 6
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with United Airlines.
United on ORF to ORD 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 690 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 397 at 76.7% on time.
The US average over the same twelve months is 77.6%, so there is little to separate United on ORF to ORD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
73.7%
Arrivals under 15 minutes late, of 676 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
1.74%
National rate is 1.81%
Whole route
75.9%
Every carrier on ORF to ORD, 1,865 flights
These figures cover 690 flights between July 2025 and June 2026. Beyond the headline rate, 8.3% 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
United against every carrier on ORF to ORD
United flew 690 of the 1,865 flights on ORF to ORD, about 37% of it. Its 73.7% on time is 2 points worse than the route as a whole, which runs 75.9%. Ranked by on-time rate it is number five of six carriers on the route, where the range runs from SkyWest at 85.8% to American at 50.0%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The two carriers here are closely matched: about 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 |
|---|---|---|---|---|---|
| SkyWest Airlinesthin sample | 156 | 85.8% | 88 min | 0.64% | A+ |
| Envoy Air | 397 | 76.7% | 66 min | 2.02% | B |
| Republic Airways | 430 | 75.8% | 62 min | 3.02% | B− |
| PSA Airlinesthin sample | 186 | 74.9% | 81 min | 7.53% | C− |
| United Airlines (this page) | 690 | 73.7% | 71 min | 1.74% | C |
| American Airlinesthin sample | 6 | 50.0% | 29 min | 0.00% | F+ |
Republic Airways cancels 3.0% 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 United 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 about a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am289 flights86.5%
- 8am–11am86 flights80.7%
- 11am–2pm19 flights—
- 2pm–5pm54 flights64.2%
- 5pm–8pm242 flights56.9%
- 8pm–5am—
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 56.9% on time, against 86.5% for the 5am–8am 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 5am–8am window is the busiest, with 289 flights scheduled in it.
Across the year
United on ORF to ORD through the year
July is the worst month at 54.1% on time, 35 points below February, the best at 88.7%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. May was the busiest month here, with 73 flights.
Across the week, Thursday is the strongest day at 77.7% on time and Sunday the weakest at 68.0%. 10 points is a smaller lever than departure hour, but it is free.
Delay causes
Why United runs late on this route
One category carries most of the weight here. National Airspace System accounts for 56% of the 13,000 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.
- 56%National Airspace System
- 28%Carrier
- 13%Late-arriving aircraft
- 3%Extreme weather
56% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 7,052 minutes out of 13,000, against a national NAS share of 21%. The split is drawn from 12,623 reported delay minutes.
Cancellations sit at 1.74% against a national 1.81%, which is ordinary. Diversions add another 0.29%.
Connections and stage length
What a delay here costs
8.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 717 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 66.9% on time across 690 flights, 7 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 7 points of difference.
One caution: this is a thin sample. 690 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 United on ORF to ORD
Put together: treat all of this as provisional. 690 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 73.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 676 completed flights over 12 months sit behind that.
Related
Where to go next
- ORF to ORD, every carrier
- United on ORD to ORF, the return leg
- SkyWest Airlines on ORF to ORD85.8%
- Envoy Air on ORF to ORD76.7%
- Republic Airways on ORF to ORD75.8%
- PSA Airlines on ORF to ORD74.9%
- United 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
- Worst months to fly in the US, ranked by the data
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.