USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Site Notification

Site Notification

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation
BTS> TranStats
transtats logo
 
Advanced Search
Resources
Database Directory
Glossary
Upcoming Releases
Data Release History
Data Finder
By Mode
Aviation
Maritime
Highway
Transit
Rail
Pipeline
Bike/Pedestrian
Other
By Subject
Safety
Freight Transport
Passenger Travel
Infrastructure
Economic/Financial
Social/Demographic
Energy
Environment
National Security
On-Time Performance - Reporting Operating Carrier Flight Delays at a Glance
Year: 2024



Marketing Carrier Flight Delays ...    More Analysis ...    Previous Chart ...
MonthOntime DeparturesOntime (%)Departure DelaysDelayed (%)Flights CancelledCancelled (%)DivertedFlight Operations
January1,26879.40%30218.91%271.69%N/A1,597
February1,28286.62%19112.91%70.47%N/A1,480
March1,51387.81%20011.61%100.58%N/A1,723
April1,55286.85%23513.15%00.00%N/A1,787
May1,69283.93%31615.67%80.40%N/A2,016
June1,69382.06%36017.45%100.48%N/A2,063
July1,74681.63%35916.78%341.59%N/A2,139
August1,77484.60%31515.02%80.38%N/A2,097
September1,75085.87%28614.03%20.10%N/A2,038
October1,79490.11%1969.84%10.05%N/A1,991
November1,73688.71%21110.78%100.51%N/A1,957
December1,60981.63%34417.45%180.91%N/A1,971
------------------------------------------------------------------------
2024 (To-Date)19,40984.91%3,31514.50%1350.59%N/A22,859
* For purposes of this report, a flight is considered delayed if it arrived at (or departed) the gate 15 minutes or more after the scheduled arrival (departure) time as reflected in the Computerized Reservation System.
** The information is based on data submitted by reporting carriers. The number of reporting carriers varies as follows: 14 from 1987 to 1988, 13 in 1989, 12 from 1990 to 1991, 10 from 1992 to 1999, 11 in 2000, 12 in 2001, 10 in 2002, 18 in 2003, 19 in 2004, 20 from 2005 to 2008, 19 in 2009, 18 in 2010, 16 in 2011, 15 in 2012, 16 in 2013, 14 in 2014, 14 in 2015, 12 in 2016, 12 in 2017, 18 in 2018, 17 in 2019, 17 in 2020, 17 in 2021. (See Reporting Carriers by Year). In the dropdown list, All Major Carriers 1987-Present refers to the 10 major carriers that reported for all years or merged into another major carrier. They are Alaska Airlines, America West (merged into US Airways starting January 2006), American Airlines, Continental Airlines (merged into United Airlines starting January 2012), Delta Air Lines, Northwest Airlines (merged into Delta Air Lines starting January 2010), Southwest Airlines, Trans World Airways (merged into American Airlines starting January 2002), United Airlines, and US Airways (merged into American Airlines starting July 2015).