Is UA1921 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Chicago)
19 min early
Updated
Departure
Chicago
ORD
Actual
Aug 22
Arrival
Houston
IAH
Actual
Aug 22
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Service date: · Scheduled departure date (America/Los_Angeles)
25 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
San Francisco
SFO
Actual
Aug 22
Arrival
Chicago
ORD
Estimated
Aug 22
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Service date: · Scheduled departure date (America/Los_Angeles)
39 min late
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Reno
RNO
Actual
Aug 22
Arrival
San Francisco
SFO
Estimated
Aug 22
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 59 min late
ORD → IAH
- 19 min early
ORD → IAH
- 44 min late
ORD → IAH
- 14 min late
ORD → IAH
- 12 min late
ORD → IAH
Flight history and details
Aug 21, 2026 — Sep 20, 2026
- Observed arrivals
- 52
- Arrivals over 15 minutes late
- 17
- Observed cancellations
- 0
- Observed occurrences
- 58
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 19, 2026Arrived | Chicago | Houston | 59 | |
| Sep 18, 2026Arrived | Chicago | Houston | -19 | |
| Sep 17, 2026Arrived | Chicago | Houston | 44 | |
| Sep 16, 2026Arrived | Chicago | Houston | 14 | |
| Sep 15, 2026Arrived | Chicago | Houston | 12 | |
| Sep 14, 2026Arrived | Chicago | Houston | -28 | |
| Sep 12, 2026Arrived | Chicago | Houston | -20 | |
| Sep 11, 2026Arrived | Chicago | Houston | -1 | |
| Sep 10, 2026Arrived | Chicago | Houston | -5 | |
| Sep 9, 2026Arrived | Chicago | Houston | 9 | |
| Sep 8, 2026Arrived | Chicago | Houston | -11 | |
| Sep 7, 2026Arrived | Chicago | Houston | -2 | |
| Sep 7, 2026Arrived | San Francisco | Chicago | -20 | |
| Sep 6, 2026Arrived | Chicago | Houston | 83 | |
| Sep 6, 2026Arrived | San Francisco | Chicago | -48 | |
| Sep 6, 2026Arrived | Reno | San Francisco | 23 | |
| Sep 5, 2026Arrived | San Francisco | Chicago | 232 | |
| Sep 5, 2026Arrived | Reno | San Francisco | 46 | |
| Sep 4, 2026Arrived | Chicago | Houston | 13 | |
| Sep 4, 2026Arrived | San Francisco | Chicago | -27 | |
| Sep 4, 2026Arrived | Reno | San Francisco | 12 | |
| Sep 3, 2026Arrived | San Francisco | Chicago | 13 | |
| Sep 3, 2026Arrived | Reno | San Francisco | 7 | |
| Sep 2, 2026Arrived | Chicago | Houston | -7 | |
| Sep 2, 2026Arrived | San Francisco | Chicago | -48 | |
| Sep 2, 2026Arrived | Reno | San Francisco | 6 | |
| Sep 1, 2026Arrived | Chicago | Houston | -9 | |
| Sep 1, 2026Arrived | San Francisco | Chicago | -19 | |
| Sep 1, 2026Arrived | Reno | San Francisco | 36 | |
| Aug 31, 2026Arrived | Chicago | Houston | -24 | |
| Aug 31, 2026Arrived | San Francisco | Chicago | 105 | |
| Aug 31, 2026Arrived | Reno | San Francisco | 26 | |
| Aug 30, 2026Arrived | Chicago | Houston | 81 | |
| Aug 30, 2026Arrived | San Francisco | Chicago | 12 | |
| Aug 30, 2026Arrived | Reno | San Francisco | 4 | |
| Aug 29, 2026Arrived | Chicago | Houston | 40 | |
| Aug 29, 2026Arrived | San Francisco | Chicago | -37 | |
| Aug 29, 2026Arrived | Reno | San Francisco | 41 | |
| Aug 28, 2026Arrived | Chicago | Houston | -35 | |
| Aug 28, 2026Arrived | San Francisco | Chicago | -23 | |
| Aug 28, 2026Arrived | Reno | San Francisco | 72 | |
| Aug 27, 2026Arrived | Chicago | Houston | 152 | |
| Aug 27, 2026Arrived | San Francisco | Chicago | -13 | |
| Aug 27, 2026Arrived | Reno | San Francisco | 14 | |
| Aug 26, 2026Arrived | San Francisco | Chicago | -45 | |
| Aug 26, 2026Arrived | Reno | San Francisco | 49 | |
| Aug 25, 2026Arrived | San Francisco | Chicago | -38 | |
| Aug 25, 2026Arrived | Reno | San Francisco | 23 | |
| Aug 24, 2026Arrived | San Francisco | Chicago | -36 | |
| Aug 23, 2026Arrived | San Francisco | Chicago | -34 | |
| Aug 23, 2026Arrived | Reno | San Francisco | 25 | |
| Aug 22, 2026Arrived | Chicago | Houston | -19 |