Is UA520 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Los_Angeles)
On time
Official source · Updated
Departure
San Francisco
SFO
Actual
Sep 19
Arrival
Salt Lake City
SLC
Actual
Sep 19
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Service date: · Scheduled departure date (UTC)
21 min late
Official source · Updated
Departure
Burbank
BUR
Actual
Sep 19
Arrival
San Francisco
SFO
Actual
Sep 19
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- On time
SFO → SLC
- 21 min late
BUR → SFO
- 9 min late
SLC → DEN
- 37 min late
SFO → SLC
- 50 min late
BUR → SFO
Flight history and details
Aug 21, 2026 — Sep 20, 2026
- Observed arrivals
- 47
- Arrivals over 15 minutes late
- 17
- Observed cancellations
- 0
- Observed occurrences
- 60
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 | San Francisco | Salt Lake City | 0 | |
| Sep 19, 2026Arrived | Burbank | San Francisco | 21 | |
| Sep 18, 2026Arrived | Salt Lake City | Denver | 9 | |
| Sep 18, 2026Arrived | San Francisco | Salt Lake City | 37 | |
| Sep 18, 2026Arrived | Burbank | San Francisco | 50 | |
| Sep 17, 2026Arrived | Salt Lake City | Denver | -37 | |
| Sep 17, 2026Arrived | San Francisco | Salt Lake City | 84 | |
| Sep 17, 2026Arrived | Burbank | San Francisco | 58 | |
| Sep 16, 2026Arrived | Salt Lake City | Denver | -1 | |
| Sep 16, 2026Arrived | San Francisco | Salt Lake City | 4 | |
| Sep 16, 2026Arrived | Burbank | San Francisco | -23 | |
| Sep 15, 2026Arrived | San Francisco | Salt Lake City | 1 | |
| Sep 15, 2026Arrived | Burbank | San Francisco | 11 | |
| Sep 14, 2026Arrived | Salt Lake City | Denver | -35 | |
| Sep 14, 2026Arrived | Burbank | San Francisco | -14 | |
| Sep 13, 2026Arrived | Salt Lake City | Denver | -7 | |
| Sep 13, 2026Arrived | Burbank | San Francisco | -20 | |
| Sep 12, 2026Arrived | Burbank | San Francisco | 25 | |
| Sep 11, 2026Arrived | San Francisco | Salt Lake City | 7 | |
| Sep 11, 2026Arrived | Burbank | San Francisco | 17 | |
| Sep 10, 2026Arrived | San Francisco | Salt Lake City | 32 | |
| Sep 10, 2026Arrived | Burbank | San Francisco | 29 | |
| Sep 9, 2026Arrived | San Francisco | Salt Lake City | -13 | |
| Sep 9, 2026Arrived | Burbank | San Francisco | -10 | |
| Sep 8, 2026Arrived | San Francisco | Salt Lake City | 30 | |
| Sep 8, 2026Arrived | Burbank | San Francisco | 21 | |
| Sep 7, 2026Arrived | Salt Lake City | Denver | -24 | |
| Sep 7, 2026Arrived | San Francisco | Salt Lake City | 12 | |
| Sep 7, 2026Arrived | Burbank | San Francisco | 6 | |
| Sep 6, 2026Arrived | San Francisco | Salt Lake City | -16 | |
| Sep 6, 2026Arrived | Burbank | San Francisco | 26 | |
| Sep 5, 2026Arrived | San Francisco | Salt Lake City | -29 | |
| Sep 5, 2026Arrived | Burbank | San Francisco | -9 | |
| Sep 4, 2026Arrived | Salt Lake City | Denver | 30 | |
| Sep 4, 2026Arrived | San Francisco | Salt Lake City | -15 | |
| Sep 4, 2026Arrived | Burbank | San Francisco | -40 | |
| Sep 3, 2026Arrived | Salt Lake City | Denver | -22 | |
| Sep 2, 2026Arrived | Salt Lake City | Denver | -16 | |
| Sep 2, 2026Arrived | San Francisco | Salt Lake City | 7 | |
| Aug 31, 2026Arrived | Salt Lake City | Denver | -2 | |
| Aug 30, 2026Arrived | Salt Lake City | Denver | 96 | |
| Aug 28, 2026Arrived | Salt Lake City | Denver | -26 | |
| Aug 27, 2026Arrived | Salt Lake City | Denver | -3 | |
| Aug 26, 2026Arrived | Salt Lake City | Denver | 13 | |
| Aug 24, 2026Arrived | Salt Lake City | Denver | 44 | |
| Aug 23, 2026Arrived | Salt Lake City | Denver | 58 | |
| Aug 21, 2026Arrived | Salt Lake City | Denver | 111 |