time" is defined as landing within 15 minutes of the scheduled time. (note that cancelled flights aren't included in the data..which is something I think the DOT should change)

Major airline on-time performance for 2022

Delta Air Lines (including regional partners) – 82.1% of flights on time
Alaska Airlines (including regional partners) – 79.1% of flights on time
United Airlines (including regional partners) – 78.7% of flights on time
American Airlines (including regional partners) – 77.1% of flights on time
Hawaiian Airlines – 75.8% of flights on time
Southwest Airlines – 73.2% of flights on time
Spirit Airlines – 73.0% of flights on time
Frontier Airlines – 66.1% of flights on time
JetBlue Airways – 64.6% of flights on time
Allegiant Air – 63.4% of flights on time