ON TIMEBOARD

UA 1517 on time

United Airlines 1517: Dallas to Chicago at 7:27 p.m. (past 12 months)

On time
62%
292 flights · likely 57–68%
Cancelled
4.1%
of scheduled flights
Typical arrival
−2 min
median vs schedule
When late
+108 min
average delay
Similar flights
62%
UA, same route & hour

About 1 in 3 UA 1517 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (38%); 4.1% were cancelled. The typical flight landed 2 minutes early.

UA 1517: DFW → ORD

Scheduled to leave Dallas at 7:27 p.m. local time. Over the past year it arrived on time 62% of the time (292 flights), in line with other UA flights on the route at that hour (62%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from Dallas to Chicago (100% of days). United Airlines's last DFW–ORD flight was cancelled 3.3% of the time, against 1.4% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 7:08 a.m. the next morning.

Month by month

30%65%100%Sep 2025: too few flights (5 flights)SepOct 2025: 70% on time (27 flights)70OctNov 2025: 50% on time (26 flights)50NovDec 2025: 67% on time (15 flights)67DecJan 2026: 64% on time (22 flights)64JanFeb 2026: 81% on time (26 flights)81FebMar 2026: 59% on time (29 flights)59MarApr 2026: 54% on time (26 flights)54AprMay 2026: 68% on time (28 flights)68MayJun 2026: 63% on time (27 flights)63JunJul 2026: 67% on time (30 flights)67JulAug 2026: 42% on time (31 flights)42Aug

By day of week

DayFlightsOn time
Monday4652%
Tuesday4078%
Wednesday4663%
Thursday4571%
Friday4661%
Saturday2458%
Sunday4553%

Why it was late

Late inbound plane 62%Air traffic & airport (NAS) 26%Severe weather 6%Airline (crew, maintenance, ops) 6%

All flights DFW → ORD · Connecting off UA 1517? Check the risk

Questions

How often is UA 1517 from DFW to ORD late?

United Airlines 1517 from Dallas/Fort Worth, TX to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 38% of 292 scheduled flights between September 2025 and August 2026. 4.1% 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.