About 1 in 6 DL 398 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (16%); 3.2% were cancelled. The typical flight landed 13 minutes early.
DL 398: DEN → LGA
Scheduled to leave Denver at 7:10 a.m. local time. Over the past year it arrived on time 84% of the time (250 flights), better than other DL 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 | 37 | 92% |
| Tuesday | 36 | 81% |
| Wednesday | 36 | 83% |
| Thursday | 36 | 86% |
| Friday | 36 | 83% |
| Saturday | 35 | 80% |
| Sunday | 34 | 82% |
Why it was late
All flights DEN → LGA · Connecting off DL 398? Check the risk
Questions
How often is DL 398 from DEN to LGA late?
Delta Air Lines 398 from Denver, CO to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 16% of 250 scheduled flights between September 2025 and August 2026. 3.2% 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 Delta Air Lines for today's flight. Method.