ON TIMEBOARD
United Airlines / ORD → SAT

UA 490 on time

United Airlines 490: Chicago to San Antonio at 9:15 a.m.; Cleveland to Chicago at 7:00 a.m. (past 12 months). Figures below the title are for ORD → SAT, its busiest leg

On time
83%
293 flights · likely 78–87%
Cancelled
0.3%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+53 min
average delay
Similar flights
81%
UA, same route & hour

About 1 in 6 UA 490 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (17%); 0.3% were cancelled. The typical flight landed 11 minutes early.

UA 490: ORD → SAT

Scheduled to leave Chicago at 9:15 a.m. local time. Over the past year it arrived on time 83% of the time (293 flights), in line with other UA flights on the route at that hour (81%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: 90% on time (31 flights)90AugSep 2025: 90% on time (30 flights)90SepOct 2025: 96% on time (25 flights)96OctDec 2025: 80% on time (30 flights)80DecJan 2026: 84% on time (31 flights)84JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 84% on time (31 flights)84MarApr 2026: 73% on time (30 flights)73AprMay 2026: 85% on time (20 flights)85MayJun 2026: too few flights (6 flights)JunJul 2026: 74% on time (31 flights)74JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday4279%
Tuesday4290%
Wednesday4281%
Thursday4288%
Friday4276%
Saturday4286%
Sunday4178%

Why it was late

Air traffic & airport (NAS) 40%Late inbound plane 34%Airline (crew, maintenance, ops) 23%Severe weather 3%

All flights ORD → SAT · Connecting off UA 490? Check the risk

UA 490: CLE → ORD

Scheduled to leave Cleveland at 7:00 a.m. local time. Over the past year it arrived on time 84% of the time (267 flights), in line with other UA flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Dec 2025: 77% on time (30 flights)77DecJan 2026: 85% on time (27 flights)85JanFeb 2026: 92% on time (26 flights)92FebMar 2026: 90% on time (31 flights)90MarApr 2026: 80% on time (30 flights)80AprMay 2026: 84% on time (31 flights)84MayJun 2026: 87% on time (30 flights)87JunJul 2026: 84% on time (31 flights)84JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday3985%
Tuesday3985%
Wednesday3892%
Thursday3982%
Friday3992%
Saturday3476%
Sunday3974%

Why it was late

Air traffic & airport (NAS) 89%Late inbound plane 9%Airline (crew, maintenance, ops) 1%Severe weather 1%

All flights CLE → ORD · Connecting off UA 490? Check the risk

Questions

How often is UA 490 from ORD to SAT late?

United Airlines 490 from Chicago, IL to San Antonio, TX arrived 15 or more minutes late, was diverted or was cancelled on 17% of 293 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

How often is UA 490 from CLE to ORD late?

United Airlines 490 from Cleveland, OH to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 16% of 267 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.