ON TIMEBOARD

UA 1757 on time

United Airlines 1757: Washington to San Francisco at 5:55 p.m.; San Francisco to Reno at 10:45 p.m. (past 12 months). Figures below the title are for IAD → SFO, its busiest leg

On time
58%
365 flights · likely 52–63%
Cancelled
1.9%
of scheduled flights
Typical arrival
+8 min
median vs schedule
When late
+79 min
average delay
Similar flights
50%
UA, same route & hour

About 1 in 2 UA 1757 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (42%); 1.9% were cancelled. The typical flight landed 8 minutes late.

UA 1757: IAD → SFO

Scheduled to leave Washington at 5:55 p.m. local time. Over the past year it arrived on time 58% of the time (365 flights), better than other UA flights on the route at that hour (50%). Last seen in the data Aug 31, 2026.

Month by month

20%60%100%Sep 2025: 50% on time (30 flights)50SepOct 2025: 58% on time (31 flights)58OctNov 2025: 67% on time (30 flights)67NovDec 2025: 55% on time (31 flights)55DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 71% on time (31 flights)71MarApr 2026: 60% on time (30 flights)60AprMay 2026: 61% on time (31 flights)61MayJun 2026: 30% on time (30 flights)30JunJul 2026: 45% on time (31 flights)45JulAug 2026: 48% on time (31 flights)48Aug

By day of week

DayFlightsOn time
Monday5355%
Tuesday5275%
Wednesday5260%
Thursday5250%
Friday5248%
Saturday5262%
Sunday5254%

Why it was late

Air traffic & airport (NAS) 41%Late inbound plane 26%Airline (crew, maintenance, ops) 23%Severe weather 10%

All flights IAD → SFO · Connecting off UA 1757? Check the risk

UA 1757: SFO → RNO

Scheduled to leave San Francisco at 10:45 p.m. local time. Over the past year it arrived on time 63% of the time (272 flights), in line with other UA flights on the route at that hour (62%). Last seen in the data Aug 30, 2026.

Usually United Airlines's last flight of the day from San Francisco to Reno (100% of days). United Airlines's last SFO–RNO flight was cancelled 0.5% of the time, against 1.2% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 8:13 a.m. the next morning.

Month by month

0%50%100%Jul 2025: 80% on time (30 flights)80JulAug 2025: 76% on time (29 flights)76AugSep 2025: 87% on time (30 flights)87SepOct 2025: 80% on time (25 flights)80OctJan 2026: 85% on time (26 flights)85JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 84% on time (31 flights)84MarApr 2026: 47% on time (30 flights)47AprMay 2026: 37% on time (27 flights)37MayJun 2026: 0% on time (22 flights)0JunJul 2026: 37% on time (27 flights)37JulAug 2026: 77% on time (26 flights)77Aug

By day of week

DayFlightsOn time
Monday3951%
Tuesday3786%
Wednesday4269%
Thursday4252%
Friday4245%
Saturday3093%
Sunday4050%

Why it was late

Late inbound plane 68%Airline (crew, maintenance, ops) 25%Air traffic & airport (NAS) 6%

All flights SFO → RNO · Connecting off UA 1757? Check the risk

Questions

How often is UA 1757 from IAD to SFO late?

United Airlines 1757 from Washington, DC to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 42% of 365 scheduled flights between September 2025 and August 2026. 1.9% were cancelled.

How often is UA 1757 from SFO to RNO late?

United Airlines 1757 from San Francisco, CA to Reno, NV arrived 15 or more minutes late, was diverted or was cancelled on 38% of 272 scheduled flights between September 2025 and August 2026. 0.4% 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.