ON TIMEBOARD

UA 2437 on time

United Airlines 2437: Chicago to Washington at 3:53 p.m.; Kansas City to Chicago at 11:25 a.m. (past 12 months). Figures below the title are for ORD → IAD, its busiest leg

On time
68%
135 flights · likely 60–75%
Cancelled
2.2%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+100 min
average delay
Similar flights
73%
UA, same route & hour

About 1 in 3 UA 2437 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (32%); 2.2% were cancelled. The typical flight landed 4 minutes early.

UA 2437: ORD → IAD

Scheduled to leave Chicago at 3:53 p.m. local time. Over the past year it arrived on time 68% of the time (135 flights), worse than other UA flights on the route at that hour (73%). Last seen in the data Aug 10, 2026.

Month by month

40%70%100%Mar 2026: too few flights (3 flights)MarApr 2026: 63% on time (30 flights)63AprMay 2026: 65% on time (31 flights)65MayJun 2026: 80% on time (30 flights)80JunJul 2026: 68% on time (31 flights)68JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday2065%
Tuesday19—
Wednesday19—
Thursday19—
Friday19—
Saturday19—
Sunday2070%

Why it was late

Late inbound plane 43%Air traffic & airport (NAS) 33%Airline (crew, maintenance, ops) 18%Severe weather 6%

All flights ORD → IAD · Connecting off UA 2437? Check the risk

UA 2437: MCI → ORD

Scheduled to leave Kansas City at 11:25 a.m. local time. Over the past year it arrived on time 79% of the time (124 flights), in line with other UA flights on the route at that hour (80%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2026: too few flights (1 flights)AprMay 2026: 74% on time (31 flights)74MayJun 2026: 87% on time (30 flights)87JunJul 2026: 81% on time (31 flights)81JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday18—
Tuesday17—
Wednesday17—
Thursday18—
Friday18—
Saturday18—
Sunday18—

Why it was late

Air traffic & airport (NAS) 57%Airline (crew, maintenance, ops) 28%Late inbound plane 15%

All flights MCI → ORD · Connecting off UA 2437? Check the risk

Questions

How often is UA 2437 from ORD to IAD late?

United Airlines 2437 from Chicago, IL to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 32% of 135 scheduled flights between September 2025 and August 2026. 2.2% were cancelled.

How often is UA 2437 from MCI to ORD late?

United Airlines 2437 from Kansas City, MO to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 21% of 124 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.