About 1 in 4 AA 420 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (28%); 3.0% were cancelled. The typical flight landed 7 minutes early.
AA 420: DFW → DEN
Scheduled to leave Dallas at 12:47 p.m. local time. Over the past year it arrived on time 72% of the time (365 flights), worse than other AA flights on the route at that hour (79%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 66% |
| Tuesday | 52 | 79% |
| Wednesday | 52 | 77% |
| Thursday | 52 | 73% |
| Friday | 52 | 73% |
| Saturday | 52 | 69% |
| Sunday | 52 | 67% |
Why it was late
All flights DFW → DEN · Connecting off AA 420? Check the risk
AA 420: DEN → DFW
Scheduled to leave Denver at 2:48 p.m. local time. Over the past year it arrived on time 62% of the time (362 flights), worse than other AA flights on the route at that hour (71%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 62% |
| Tuesday | 52 | 67% |
| Wednesday | 51 | 67% |
| Thursday | 51 | 65% |
| Friday | 52 | 60% |
| Saturday | 51 | 61% |
| Sunday | 52 | 54% |
Why it was late
All flights DEN → DFW · Connecting off AA 420? Check the risk
Questions
How often is AA 420 from DFW to DEN late?
American Airlines 420 from Dallas/Fort Worth, TX to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 28% of 365 scheduled flights between September 2025 and August 2026. 3.0% were cancelled.
How often is AA 420 from DEN to DFW late?
American Airlines 420 from Denver, CO to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 38% of 362 scheduled flights between September 2025 and August 2026. 4.1% 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 American Airlines for today's flight. Method.