About 1 in 8 UA 414 flights from Boston arrived 15+ minutes late, diverted or cancelled over the past year (12%); 1.1% were cancelled. The typical flight landed 14 minutes early.
UA 414: BOS → DEN
Scheduled to leave Boston at 12:22 p.m. local time. Over the past year it arrived on time 88% of the time (364 flights), in line with 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 | 53 | 81% |
| Tuesday | 52 | 87% |
| Wednesday | 52 | 92% |
| Thursday | 51 | 90% |
| Friday | 52 | 92% |
| Saturday | 52 | 81% |
| Sunday | 52 | 92% |
Why it was late
All flights BOS → DEN · Connecting off UA 414? Check the risk
UA 414: DEN → DFW
Scheduled to leave Denver at 3:42 p.m. local time. Over the past year it arrived on time 65% of the time (123 flights), worse than other UA flights on the route at that hour (72%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 23 | 78% |
| Tuesday | 11 | — |
| Wednesday | 22 | 59% |
| Thursday | 22 | 59% |
| Friday | 22 | 59% |
| Sunday | 23 | 74% |
Why it was late
All flights DEN → DFW · Connecting off UA 414? Check the risk
Questions
How often is UA 414 from BOS to DEN late?
United Airlines 414 from Boston, MA to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 12% of 364 scheduled flights between September 2025 and August 2026. 1.1% were cancelled.
How often is UA 414 from DEN to DFW late?
United Airlines 414 from Denver, CO to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 35% of 123 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.