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United Airlines / DCA → IAH

UA 697 on time

United Airlines 697: Washington to Houston at 8:20 a.m.; Houston to San Antonio at 2:20 p.m. (past 12 months). Figures below the title are for DCA → IAH, its busiest leg

On time
89%
341 flights · likely 86–92%
Cancelled
1.2%
of scheduled flights
Typical arrival
−21 min
median vs schedule
When late
+67 min
average delay
Similar flights
90%
UA, same route & hour

About 1 in 9 UA 697 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (11%); 1.2% were cancelled. The typical flight landed 21 minutes early.

UA 697: DCA → IAH

Scheduled to leave Washington at 8:20 a.m. local time. Over the past year it arrived on time 89% of the time (341 flights), in line with other UA flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 87% on time (31 flights)87OctNov 2025: 100% on time (29 flights)100NovDec 2025: 81% on time (31 flights)81DecJan 2026: 87% on time (31 flights)87JanFeb 2026: too few flights (10 flights)FebMar 2026: 96% on time (27 flights)96MarApr 2026: 100% on time (30 flights)100AprMay 2026: 87% on time (31 flights)87MayJun 2026: 83% on time (30 flights)83JunJul 2026: 80% on time (30 flights)80JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday5088%
Tuesday4988%
Wednesday4892%
Thursday4990%
Friday4888%
Saturday4990%
Sunday4892%

Why it was late

Air traffic & airport (NAS) 52%Airline (crew, maintenance, ops) 40%Late inbound plane 6%Severe weather 2%

All flights DCA → IAH · Connecting off UA 697? Check the risk

UA 697: IAH → SAT

Scheduled to leave Houston at 2:20 p.m. local time. Over the past year it arrived on time 85% of the time (204 flights), in line with other UA flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: too few flights (6 flights)SepOct 2025: 76% on time (25 flights)76OctDec 2025: too few flights (14 flights)DecJan 2026: too few flights (5 flights)JanFeb 2026: 100% on time (17 flights)100FebMar 2026: 87% on time (31 flights)87MarApr 2026: 83% on time (30 flights)83AprMay 2026: 94% on time (31 flights)94MayJun 2026: 58% on time (24 flights)58JunAug 2026: 90% on time (21 flights)90Aug

By day of week

DayFlightsOn time
Monday2979%
Tuesday2893%
Wednesday2889%
Thursday3080%
Friday3087%
Saturday3090%
Sunday2976%

Why it was late

Late inbound plane 44%Air traffic & airport (NAS) 23%Airline (crew, maintenance, ops) 23%Severe weather 9%

All flights IAH → SAT · Connecting off UA 697? Check the risk

Questions

How often is UA 697 from DCA to IAH late?

United Airlines 697 from Washington, DC to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 11% of 341 scheduled flights between September 2025 and August 2026. 1.2% were cancelled.

How often is UA 697 from IAH to SAT late?

United Airlines 697 from Houston, TX to San Antonio, TX arrived 15 or more minutes late, was diverted or was cancelled on 15% of 204 scheduled flights between September 2025 and August 2026. 0.0% 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.