United Airlines
Is UA1218 delayed?
No delay reported yet. UA1218 is scheduled to leave Seattle at 19:24 on Nov 15 and reach Denver at 22:39 (as of Nov 15, 09:47 UTC). Of its last 17 arrivals graded against a published schedule, 0 landed more than 15 min late.
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
Seattle
SEA
Scheduled
Nov 15
Arrival
Denver
DEN
Scheduled
Nov 15
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- On time
Seattle → Denver
- 25 min early
Seattle → Denver
- 29 min early
Seattle → Denver
- 26 min early
Seattle → Denver
- 22 min early
Seattle → Denver
Is UA1218 usually late?
Period: Oct 16, 2026 – Nov 15, 2026
Percentages and delay figures appear once 20 arrivals are graded.
On time means landing no more than 15 minutes after the scheduled arrival, late more than 15 minutes after, both times read to the minute. The percentages share one base: graded arrivals plus cancelled and diverted flights. A cancelled plan another plan of the flight replaced within 12 hours is not counted. Median and “9 in 10” are interpolated over the graded arrivals. Compares scheduled and actual arrival times, read to the minute. Some flights may be missing.
Departures on record at these airports today
Seattle (SEA) departures
Too few departures on record with a known outcome so far today to judge: 4 of 20 needed.
Flights from Seattle to Denver todayDenver (DEN) departures
Too few departures on record with a known outcome so far today to judge: 3 of 20 needed.
Counts cover the departures on record at each airport, not its full schedule.
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Cancelled | Seattle | Denver | Not available | Not available |
| Nov 12, 2026Arrived | Seattle | Denver | 0 | |
| Nov 11, 2026Arrived | Seattle | Denver | -25 | |
| Nov 8, 2026Arrived | Seattle | Denver | -29 | |
| Nov 6, 2026Arrived | Seattle | Denver | -26 | |
| Nov 5, 2026Arrived | Seattle | Denver | -22 | |
| Nov 4, 2026Arrived | Seattle | Denver | -15 | |
| Nov 1, 2026Arrived | Seattle | Denver | -25 | |
| Oct 30, 2026Arrived | Seattle | Denver | -24 | |
| Oct 29, 2026Arrived | Seattle | Denver | -14 | |
| Oct 28, 2026Arrived | Seattle | Denver | -33 | |
| Oct 25, 2026Arrived | Seattle | Denver | -10 | |
| Oct 23, 2026Arrived | Seattle | Denver | -5 | |
| Oct 22, 2026Arrived | Seattle | Denver | 8 | |
| Oct 21, 2026Arrived | Seattle | Denver | -8 | |
| Oct 19, 2026Arrived | Seattle | Denver | 3 | |
| Oct 18, 2026Arrived | Seattle | Denver | -16 | |
| Oct 16, 2026Arrived | Seattle | Denver | -25 |