About 1 in 12 UA 683 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (9%); 0.6% were cancelled. The typical flight landed 15 minutes early.
UA 683: IAD → TPA
Scheduled to leave Washington at 9:00 a.m. local time. Over the past year it arrived on time 91% of the time (346 flights), in line with other UA flights on the route at that hour (92%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 87% |
| Tuesday | 43 | 98% |
| Wednesday | 43 | 98% |
| Thursday | 52 | 96% |
| Friday | 51 | 88% |
| Saturday | 52 | 87% |
| Sunday | 52 | 88% |
Why it was late
All flights IAD → TPA · Connecting off UA 683? Check the risk
UA 683: TPA → DEN
Scheduled to leave Tampa at 12:25 p.m. local time. Over the past year it arrived on time 87% of the time (141 flights), worse than other UA flights on the route at that hour (90%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 20 | 90% |
| Tuesday | 21 | 100% |
| Wednesday | 21 | 95% |
| Thursday | 19 | — |
| Friday | 20 | 85% |
| Saturday | 20 | 75% |
| Sunday | 20 | 75% |
Why it was late
All flights TPA → DEN · Connecting off UA 683? Check the risk
Questions
How often is UA 683 from IAD to TPA late?
United Airlines 683 from Washington, DC to Tampa, FL arrived 15 or more minutes late, was diverted or was cancelled on 9% of 346 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.
How often is UA 683 from TPA to DEN late?
United Airlines 683 from Tampa, FL to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 13% of 141 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.