Flight profile · United Airlines
UA635
Hartford (BDL) to Washington (IAD) · scheduled 6:00 AM – 7:23 AM
How UA635 performs
413 operations, 2025-02-13 to 2026-06-30.
UA635 arrived on time 94.1% of the time, against 86.0% for all BDL → IAD flights — this specific departure is 8.0 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 7.0 points better.
Source: US DOT Bureau of Transportation Statistics · 413 operations between 2025-02-13 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA635 | 94.1% | 1.94% | -10 min | 1.5% | 413 |
| United Airlines on BDL → IAD | 87.1% | 1.12% | -8 min | 4.0% | 2,227 |
| All BDL → IAD flights | 86.0% | 1.48% | -8 min | 4.4% | 2,501 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-02-13 to 2026-06-30
Other routes UA635 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| IAD→SFO Washington to San Francisco | 2026-04-04 – 2026-06-24 | 73 | — |
| SFO→BNA San Francisco to Nashville | 2026-05-21 – 2026-06-22 | 20 | — |
| SFO→SAN San Francisco to San Diego | 2026-04-30 – 2026-05-20 | 21 | — |
| SFO→BOS San Francisco to Boston | 2026-04-06 – 2026-04-27 | 4 | — |
| IAD→RDU Washington to Raleigh–Durham | 2026-03-05 – 2026-03-28 | 24 | — |
| IAD→PBI Washington to West Palm Beach | 2026-02-12 – 2026-03-04 | 21 | — |
| SFO→RDM San Francisco to Redmond | 2026-02-04 – 2026-02-04 | 1 | — |
| IAD→ABQ Washington to Albuquerque | 2025-08-19 – 2025-09-24 | 37 | — |
| ONT→DEN Ontario to Denver | 2025-07-01 – 2025-07-29 | 15 | — |
| ORD→ALB Chicago to Albany | 2025-06-27 – 2025-06-30 | 2 | — |
| TUL→IAH Tulsa to Houston | 2025-06-26 – 2025-06-26 | 1 | — |
| LAS→ORD Las Vegas to Chicago | 2025-06-16 – 2025-06-23 | 2 | — |
| SAN→EWR San Diego to Newark | 2025-06-09 – 2025-06-09 | 1 | — |
| DCA→SFO Washington to San Francisco | 2025-03-30 – 2025-04-30 | 32 | — |
| IAD→CLE Washington to Cleveland | 2025-01-07 – 2025-02-12 | 32 | — |
| MSY→DEN New Orleans to Denver | 2024-02-15 – 2025-01-06 | 290 | 79.9% |
| ORD→DFW Chicago to Dallas–Fort Worth | 2024-12-02 – 2024-12-02 | 1 | — |
| DEN→STL Denver to St. Louis | 2024-11-30 – 2024-12-01 | 2 | — |
| SFO→ORD San Francisco to Chicago | 2024-11-22 – 2024-11-29 | 2 | — |
| EWR→SFO Newark to San Francisco | 2024-10-27 – 2024-10-31 | 5 | — |
| IAD→MCO Washington to Orlando | 2024-01-09 – 2024-02-14 | 37 | — |
| LGA→DEN New York to Denver | 2023-07-01 – 2024-01-08 | 117 | 82.5% |
| DEN→SFO Denver to San Francisco | 2023-11-28 – 2023-12-20 | 23 | — |
| MCO→DEN Orlando to Denver | 2023-10-01 – 2023-10-28 | 28 | — |
| DEN→RNO Denver to Reno | 2023-09-05 – 2023-09-28 | 24 | — |
Because the same number has served different journeys, the statistics above describe only the route UA635 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 413 records of UA635 operating BDL → IAD, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.