Flight OddsUA340 ATL → DEN
United Airlines · Atlanta, GA to Denver, CO · 277 flights observed, 2025-07-01 to 2026-06-30 · 1,199 mi
UA340 covers more than one route in the data window — the stats below are for ATL → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
90%
Median delay
-9 min
90th percentile
+16 min
Cancellation rate
1%
How often is UA340 on time?
Across 277 flights on ATL → DEN from 2025-07-01 to 2026-06-30, UA340 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +16 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 244 | 90% |
| 16-30 min | 8 | 3% |
| 31-60 min | 11 | 4% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 7 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 21 | 81% | +12 min |
| 2025-08 | 25 | 84% | +6 min |
| 2025-09 | 29 | 93% | -4 min |
| 2025-10 | 25 | 96% | +10 min |
| 2025-12 | 30 | 90% | -1 min |
| 2026-01 | 31 | 87% | -5 min |
| 2026-02 | 27 | 89% | -1 min |
| 2026-03 | 29 | 83% | -1 min |
| 2026-04 | 30 | 93% | +3 min |
| 2026-05 | 20 | 100% | -15 min |
| 2026-06 | 5 | 100% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 41 | 93% |
| Tue | 43 | 84% |
| Wed | 35 | 91% |
| Thu | 41 | 85% |
| Fri | 39 | 97% |
| Sat | 40 | 85% |
| Sun | 33 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…