Flight number record
UA 2137
United Airlines · Madison to Chicago
- Route
- MSN → ORD
- Departs
- 06:30
- Flights
- 262
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2137, check with United Airlines.
UA 2137 lands a B, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 262 flights, with a median arrival 4 minutes early.
Key figures
On time
78.8%
Arrivals under 15 minutes late, of 255 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
2.67%
National rate is 1.89%
1 hour+ late
6.7%
National rate is 8.3%
These figures cover 262 flights between September 2025 and August 2026. The median arrival is 4 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When UA 2137 flies
UA 2137 is scheduled to leave Madison (MSN) at 06:30 local time and reach Chicago (ORD) at 07:37. That slot held for 251 of the 262 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.
- Departs 06:30251 flights95.8%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 06:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 2137 runs 11 points worse at 78.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
UA 2137 next to MSN to ORD
Every carrier on MSN to ORD combined arrived on time 72.8% of the time across 4,070 flights, so UA 2137 is 6 points ahead of it. United flew 996 flights on the same city pair under all its flight numbers, including this one, and those ran 72.8% on time. Across its whole network United Airlines managed 78.8%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2137thin sample | 262 | 78.8% | 62 min | 2.67% | B |
| All United Airlines on MSN–ORD | 996 | 72.8% | 71 min | 2.31% | C |
| All carriers on MSN–ORD | 4,070 | 72.8% | 96 min | 3.88% | C− |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2137 quarter by quarter
UA 2137 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.2% on time and its weakest Oct–Dec 2025 at 67.1%, a swing of 21 points on roughly 87 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202529 flights—
- Oct–Dec 202578 flights67.1%
- Jan–Mar 202681 flights78.2%
- Apr–Jun 202653 flights88.2%
- Jul–Sep 202621 flights—
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2137 did best on Thursday at 91.4% on time and worst on Wednesday at 70.3%. Each day rests on about 37 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2137 runs when it is late
Most of the lateness is short. 29 of the 54 late arrivals were under half an hour behind, and 17 reached an hour or more.
- 15+ min early63 flights24.7%
- Within 15 min138 flights54.1%
- 15–29 min late29 flights11.4%
- 30–59 min late8 flights3.1%
- 1–2 hours late10 flights3.9%
- 2+ hours late7 flights2.7%
Scale runs 0% to 100%.
Share of 255 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 24 departures that left 15 minutes late or more, only 1 made it up before arrival. In the other direction, 31 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 ORD.
The worst days
Worst days for UA 2137
The latest arrival of the period was on 7 December 2025, 6 hours 23 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 December 2025 | 6 hours 23 minutes | National Airspace System |
| 16 January 2026 | 3 hours 12 minutes | National Airspace System |
| 14 January 2026 | 3 hours 11 minutes | National Airspace System |
| 13 September 2025 | 3 hours 3 minutes | National Airspace System |
| 30 August 2026 | 3 hours 2 minutes | National Airspace System |
Delay causes
Why UA 2137 runs late
National Airspace System accounts for 72% of the 3,351 delay minutes carriers reported here, and the remaining four split what is left.
- 72%National Airspace System
- 25%Carrier
- 2%Late-arriving aircraft
- 0%Extreme weather
72% 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 2,425 minutes out of 3,351, against a national NAS share of 21%. The split is drawn from 3,351 delay minutes reported on UA 2137.
Cancellations run at 2.67%, against 1.89% nationally. That is about one flight in 40 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 routes
What a delay on this flight costs
6.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The same number turns up on nine other city pairs in the data, including ORD to ORF (106), ORD to LAS (87) and ORD to BOI (47), but none flew often enough under UA 2137 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to MSN to ORD only.
One caution: this is a thin sample. 262 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 UA 2137
For a booking, the cancellation rate is the figure to plan around on UA 2137: 2.67% of its 262 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- MSN to ORD, every carrier and departure
- ORD to MSN, the return direction
- Chicago O'Hare International (ORD) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- What a cancellation rate actually tells you (and what it hides)
A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
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.