Flight OddsUA688 LAS → IAD
United Airlines · Las Vegas, NV to Washington, DC · 53 flights observed, 2026-03-29 to 2026-05-20 · 2,065 mi
UA688 covers more than one route in the data window — the stats below are for LAS → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-20 min
90th percentile
+1 min
Cancellation rate
0%
How often is UA688 on time?
Across 53 flights on LAS → IAD from 2026-03-29 to 2026-05-20, UA688 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -20 min, and the worst 10% of flights arrived +1 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 49 | 92% |
| 16-30 min | 3 | 6% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 3 | 100% | -21 min |
| 2026-04 | 30 | 90% | -17 min |
| 2026-05 | 20 | 95% | -17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 100% |
| Tue | 8 | 88% |
| Wed | 8 | 88% |
| Thu | 7 | 100% |
| Fri | 7 | 71% |
| Sat | 7 | 100% |
| Sun | 8 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…