ON TIMEBOARD

UA 2497 on time

United Airlines 2497: Washington to Chicago at 5:15 p.m.; New Orleans to Washington at 12:17 p.m. (past 12 months). Figures below the title are for IAD → ORD, its busiest leg

On time
46%
365 flights · likely 41–51%
Cancelled
0.8%
of scheduled flights
Typical arrival
+16 min
median vs schedule
When late
+76 min
average delay
Similar flights
46%
UA, same route & hour

About 5 in 10 UA 2497 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (54%); 0.8% were cancelled. The typical flight landed 16 minutes late.

UA 2497: IAD → ORD

Scheduled to leave Washington at 5:15 p.m. local time. Over the past year it arrived on time 46% of the time (365 flights), in line with other UA flights on the route at that hour (46%). Last seen in the data Aug 31, 2026.

Month by month

10%55%100%Sep 2025: 73% on time (30 flights)73SepOct 2025: 42% on time (31 flights)42OctNov 2025: 60% on time (30 flights)60NovDec 2025: 45% on time (31 flights)45DecJan 2026: 42% on time (31 flights)42JanFeb 2026: 50% on time (28 flights)50FebMar 2026: 65% on time (31 flights)65MarApr 2026: 40% on time (30 flights)40AprMay 2026: 39% on time (31 flights)39MayJun 2026: 43% on time (30 flights)43JunJul 2026: 16% on time (31 flights)16JulAug 2026: 35% on time (31 flights)35Aug

By day of week

DayFlightsOn time
Monday5343%
Tuesday5248%
Wednesday5246%
Thursday5238%
Friday5246%
Saturday5256%
Sunday5242%

Why it was late

Air traffic & airport (NAS) 58%Late inbound plane 22%Airline (crew, maintenance, ops) 16%Severe weather 4%

All flights IAD → ORD · Connecting off UA 2497? Check the risk

UA 2497: MSY → IAD

Scheduled to leave New Orleans at 12:17 p.m. local time. Over the past year it arrived on time 91% of the time (198 flights), in line with other UA flights on the route at that hour (92%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from New Orleans to Washington (62% of days). United Airlines's last MSY–IAD flight was cancelled 0.4% of the time, against 0.3% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 8:00 a.m. the next morning.

Month by month

40%70%100%Jan 2026: 91% on time (22 flights)91JanFeb 2026: 92% on time (24 flights)92FebMar 2026: 89% on time (27 flights)89MarApr 2026: 97% on time (29 flights)97AprMay 2026: 89% on time (27 flights)89MayJun 2026: 91% on time (22 flights)91JunJul 2026: 87% on time (23 flights)87JulAug 2026: 92% on time (24 flights)92Aug

By day of week

DayFlightsOn time
Monday3494%
Tuesday3491%
Wednesday3491%
Thursday3491%
Friday3491%
Saturday9—
Sunday19—

Why it was late

Late inbound plane 53%Air traffic & airport (NAS) 27%Airline (crew, maintenance, ops) 20%Severe weather 1%

All flights MSY → IAD · Connecting off UA 2497? Check the risk

Questions

How often is UA 2497 from IAD to ORD late?

United Airlines 2497 from Washington, DC to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 54% of 365 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.

How often is UA 2497 from MSY to IAD late?

United Airlines 2497 from New Orleans, LA to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 9% of 198 scheduled flights between September 2025 and August 2026. 1.0% 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.