CHS · Charleston International Airport

Share of flights 15+ min late, by month

departures arrivals usual for the month (departures) Jan 2015 → Jul 2026; gridlines 10/20/30/40%

Month	Flights	Late 15+	vs usual	Cancelled	Avg min	Main cause
Jul 2026	2,172	28.7%	+1.8	3.9%	29	Late aircraft
Jun 2026	2,117	21.7%	-2.7	2.4%	21	Late aircraft
May 2026	2,200	18.4%	-2.9	0.7%	16	Late aircraft
Apr 2026	2,167	19.1%	+0.4	0.7%	16	Late aircraft
Mar 2026	2,199	21.6%	+3.8	4.2%	20	Late aircraft
Feb 2026	1,680	17.2%	+2.1	3.8%	14	Late aircraft
Jan 2026	1,817	16.7%	+0.3	6.7%	16	Late aircraft
Dec 2025	2,030	24.2%	+7.8	1.9%	22	Late aircraft
Nov 2025	2,082	19.2%	+6.3	2.2%	17	Late aircraft
Oct 2025	2,149	21.0%	+6.2	0.5%	17	Late aircraft
Sep 2025	1,881	14.9%	+0.6	0.3%	11	Late aircraft
Aug 2025	2,071	19.2%	-3.5	1.5%	16	Late aircraft
Jul 2025	2,331	26.5%	-0.4	3.4%	27	Late aircraft
Jun 2025	2,275	24.4%	+2.1	2.0%	21	Late aircraft
May 2025	2,298	24.4%	+7.7	1.6%	21	Air traffic
Apr 2025	2,263	18.7%	+0.8	0.7%	16	Late aircraft
Mar 2025	2,026	17.8%	+1.2	1.2%	15	Late aircraft
Feb 2025	1,567	18.7%	+3.6	3.0%	15	Late aircraft
Jan 2025	1,661	15.9%	-0.6	9.7%	17	Late aircraft
Dec 2024	1,945	19.3%	+4.4	0.6%	15	Late aircraft
Nov 2024	1,963	11.4%	-2.9	0.3%	9	Late aircraft
Oct 2024	2,253	10.1%	-4.7	0.1%	8	Airline
Sep 2024	2,200	13.8%	-0.6	0.6%	11	Late aircraft
Aug 2024	2,323	22.8%	+3.6	5.3%	18	Late aircraft

Airline	Flights	Late	Canc.
Envoy	134	14.9%	0.0%
Alaska	31	16.1%	0.0%
American	340	20.6%	0.3%
Southwest	271	20.8%	0.7%
Delta	386	20.9%	3.1%
United	169	21.7%	1.8%
Republic	260	25.6%	2.3%
JetBlue	133	32.8%	3.8%
PSA	220	39.7%	2.7%
Spirit	48	40.0%	6.2%

Airlines with 30+ departures that month.

Date	Flights	Late	Canc.
2018-01-04	57	—	100%
2018-01-05	57	—	100%
2018-09-13	67	—	100%
2018-09-14	69	—	100%
2019-09-05	72	—	100%
2022-09-30	66	—	100%
2025-01-22	50	—	100%
2025-01-23	57	100%	84%
2018-09-15	58	50%	97%
2018-01-03	56	11%	84%
2023-01-11	54	73%	17%
2026-01-25	62	55%	50%

Departures; ranked by share late or cancelled.

None recorded.