Is UA644 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Denver)
Arrived
10 min early
Official source · Updated
Departure
Denver
DEN
Actual
Scheduled 11:52
Sep 7
Arrival
Portland
PDX
Actual
Scheduled 20:10
Sep 7
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/Chicago)
Arrived
24 min early
Official source · Updated
Departure
Dallas-Fort Worth
DFW
Actual
Scheduled 09:13
Sep 7
Arrival
Denver
DEN
Actual
Scheduled 10:02
Sep 7
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
DENPDX
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 3 min early
DEN → PDX
- 25 min early
DFW → DEN
- 12 min early
DEN → PDX
- 18 min early
DFW → DEN
- 4 min early
DEN → PDX
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 45
- Arrivals over 15 minutes late
- 4
- Observed cancellations
- 1
- Observed occurrences
- 55
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 17, 2026Arrived | Denver | Portland | -3 | |
| Sep 17, 2026Arrived | Dallas-Fort Worth | Denver | -25 | |
| Sep 16, 2026Arrived | Denver | Portland | -12 | |
| Sep 16, 2026Arrived | Dallas-Fort Worth | Denver | -18 | |
| Sep 15, 2026Arrived | Denver | Portland | -4 | |
| Sep 14, 2026Arrived | Dallas-Fort Worth | Denver | 3 | |
| Sep 12, 2026Arrived | Denver | Portland | -11 | |
| Sep 12, 2026Arrived | Dallas-Fort Worth | Denver | -18 | |
| Sep 11, 2026Arrived | Denver | Portland | -7 | |
| Sep 11, 2026Arrived | Dallas-Fort Worth | Denver | 0 | |
| Sep 10, 2026Arrived | Dallas-Fort Worth | Denver | 330 | |
| Sep 9, 2026Arrived | Denver | Portland | -4 | |
| Sep 9, 2026Arrived | Dallas-Fort Worth | Denver | 6 | |
| Sep 8, 2026Arrived | Denver | Portland | -15 | |
| Sep 8, 2026Arrived | Dallas-Fort Worth | Denver | -6 | |
| Sep 7, 2026Arrived | Denver | Portland | -10 | |
| Sep 7, 2026Arrived | Dallas-Fort Worth | Denver | -24 | |
| Sep 6, 2026Arrived | Denver | Portland | -5 | |
| Sep 6, 2026Arrived | Dallas-Fort Worth | Denver | 0 | |
| Sep 5, 2026Arrived | Denver | Portland | -17 | |
| Sep 5, 2026Arrived | Dallas-Fort Worth | Denver | 15 | |
| Sep 4, 2026Arrived | Denver | Portland | -15 | |
| Sep 4, 2026Arrived | Dallas-Fort Worth | Denver | -19 | |
| Sep 3, 2026Cancelled | Dallas-Fort Worth | Denver | Not available | Not available |
| Sep 2, 2026Arrived | Dallas-Fort Worth | Denver | -29 | |
| Sep 1, 2026Arrived | Denver | Portland | -17 | |
| Sep 1, 2026Arrived | Dallas-Fort Worth | Denver | 1 | |
| Aug 31, 2026Arrived | Denver | Portland | -20 | |
| Aug 31, 2026Arrived | Dallas-Fort Worth | Denver | 1 | |
| Aug 30, 2026Arrived | Denver | Portland | 0 | |
| Aug 30, 2026Arrived | Dallas-Fort Worth | Denver | -21 | |
| Aug 29, 2026Arrived | Denver | Portland | -13 | |
| Aug 29, 2026Arrived | Dallas-Fort Worth | Denver | 7 | |
| Aug 28, 2026Arrived | Denver | Portland | 30 | |
| Aug 28, 2026Arrived | Dallas-Fort Worth | Denver | -34 | |
| Aug 27, 2026Arrived | Denver | Portland | 2 | |
| Aug 27, 2026Arrived | Dallas-Fort Worth | Denver | -25 | |
| Aug 26, 2026Arrived | Denver | Portland | -9 | |
| Aug 26, 2026Arrived | Dallas-Fort Worth | Denver | -35 | |
| Aug 25, 2026Arrived | Denver | Portland | -25 | |
| Aug 25, 2026Arrived | Dallas-Fort Worth | Denver | 24 | |
| Aug 24, 2026Arrived | Denver | Portland | -20 | |
| Aug 23, 2026Arrived | Denver | Portland | -8 | |
| Aug 23, 2026Arrived | Dallas-Fort Worth | Denver | 121 |