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Flight Reliability

UA 1869 · United Airlines

Washington → San Antonio (IAD–SAT)94% of its flights flew this route. The rest (ORD–IAD, ORF–ORD) are included in these numbers.

85
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
9 min
Average arrival delay
0.5%
Cancelled
6 min early
Median arrival delay

Based on 385 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

UA 1869 departing between 6–9 AM arrived on time 92% of the time, versus 79% between 3–6 PM.

Sunday scaries are real for this one.

UA 1869 arrived on time 87% of the time on Tuesdays. On Sundays: 73%.

Lagging the IAD–SAT route.

UA 1869 arrived on time 79% of the time, versus 86% across the IAD–SAT route.

Slipping a little lately.

UA 1869 arrived on time 81% of the time over the last three months in the data, compared with 86% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(54 flights)
  • Tue87%(54 flights)
  • Wed80%(54 flights)
  • Thu78%(58 flights)
  • Fri75%(56 flights)
  • Sat83%(52 flights)
  • Sun73%(55 flights)
On-time by departure window
  • 6–9 AM92%(12 flights)
  • 9 AM–12 PM83%(12 flights)
  • 3–6 PM79%(339 flights)
  • 6–9 PM80%(20 flights)
On-time trend by month
85%
May

Jun 53% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202553%30
July 202545%31
August 202589%27
September 202590%30
October 202597%31
November 202577%30
December 202574%31
January 202690%29
February 202693%28
March 202677%31
April 202681%32
May 202685%53
Departures on time
80%
Diverted
0%
Flights flown
383
Months covered
12

Same route, other flights

Keep nerding

Based on 385 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.