← August 2024 · October 2024 → · All months

84% of flights arrived on time in September 2024, and 0.6% were cancelled. Hawaiian Airlines was the most punctual airline (90%); Frontier Airlines was the least (75%). The most delayed busy route was AVL → CLT (59% on time).

Airlines

#	Airline	Flights	On time	Year earlier	Cancelled
1	Hawaiian Airlines	6,450	90%	88%	0.5%
2	Delta Air Lines	129,399	87%	85%	0.4%
3	United Airlines	116,750	86%	81%	0.4%
4	Southwest Airlines	112,561	85%	80%	0.4%
5	Spirit Airlines	20,399	82%	75%	1.2%
6	American Airlines	158,737	82%	80%	0.8%
7	JetBlue	18,350	81%	60%	0.4%
8	Allegiant Air	6,889	81%	78%	2.3%
9	Alaska Airlines	34,623	79%	83%	0.5%
10	Frontier Airlines	17,491	75%	71%	1.6%

Most delayed routes

Route	Flights	On time
AVL → CLT	227	59%
AGS → CLT	183	60%
CLT → AVL	228	62%
AVL → ORD	146	65%
CLT → PHL	341	66%
TPA → LGA	166	67%
FCA → SEA	120	68%
MIA → LAS	120	68%
ORD → AVL	146	68%
RNO → SEA	146	68%
SEA → BUR	150	68%
RDU → DCA	220	68%
SAN → SFO	574	68%
FLL → PHL	162	69%
PBI → PHL	126	69%
LGA → TPA	166	69%
FLL → CLT	228	69%
MIA → DEN	124	69%
CLT → AGS	183	69%
SDF → CLT	180	69%

Most reliable routes

Route	Flights	On time
CLE → IAH	121	98%
PVD → BWI	170	97%
DTW → CVG	120	97%
BUF → LGA	177	97%
PDX → MSP	140	96%
PHX → YUM	137	96%
OMA → LGA	128	96%
MSP → SLC	126	96%
CVG → DTW	120	96%
OGG → LIH	120	96%
SYR → IAD	120	96%
LGA → SDF	132	95%
SDF → LGA	132	95%
MSP → MKE	130	95%
IND → LGA	237	95%
LGA → STL	300	95%
STL → LGA	300	95%
PIT → JFK	149	95%
BUF → BWI	147	95%
MHT → BWI	145	95%

Airports

Airports with at least 3,000 departures in the month, most punctual first.

#	Airport	Departures	On time	Cancelled
1	HNL Honolulu	4,845	91%	0.4%
2	MSP Minneapolis-St. Paul	10,823	89%	0.2%
3	HOU Houston Hobby	4,407	89%	0.4%
4	LGA LaGuardia	13,591	89%	0.4%
5	CLE Cleveland Hopkins	3,597	88%	0.5%
6	PIT Pittsburgh	3,884	88%	0.3%
7	MCI Kansas City	4,361	88%	0.2%
8	DTW Detroit Metro	11,271	88%	0.3%
9	IND Indianapolis	3,881	87%	0.5%
10	STL St. Louis Lambert	5,755	87%	0.4%
11	CMH John Glenn Columbus	3,709	87%	0.2%
12	SAT San Antonio	3,465	87%	0.1%
13	LAX Los Angeles LAX	16,136	86%	0.2%
14	PDX Portland	6,265	86%	0.2%
15	SLC Salt Lake City	9,283	86%	0.1%
16	AUS Austin-Bergstrom	6,860	86%	0.3%
17	PHX Phoenix Sky Harbor	15,170	86%	0.2%
18	IAD Washington Dulles	7,141	86%	0.4%
19	SNA Orange County John Wayne	3,546	86%	0.5%
20	SMF Sacramento	4,955	85%	0.4%
21	SJC San Jose	4,495	85%	0.4%
22	JFK New York JFK	10,376	85%	0.2%
23	MDW Chicago Midway	6,849	85%	0.3%
24	DCA Washington Reagan National	11,829	85%	0.7%
25	IAH Houston Bush Intercontinental	13,896	84%	0.5%
26	DEN Denver	26,146	84%	0.2%
27	OAK Oakland	3,516	84%	0.4%
28	CVG Cincinnati Northern Kentucky	3,612	84%	0.5%
29	BNA Nashville	8,337	84%	0.5%
30	BOS Boston Logan	12,462	84%	0.4%
31	ATL Atlanta Hartsfield-Jackson	28,304	83%	0.8%
32	EWR Newark	11,788	83%	0.8%
33	ORD Chicago O'Hare	28,218	83%	0.2%
34	BWI Baltimore/Washington	8,294	83%	0.6%
35	RDU Raleigh-Durham	5,189	82%	0.9%
36	MCO Orlando	10,764	82%	0.4%
37	PHL Philadelphia	10,892	82%	0.5%
38	DAL Dallas Love Field	5,602	82%	0.3%
39	SFO San Francisco	11,892	82%	0.3%
40	MSY New Orleans	3,668	81%	3.5%
41	DFW Dallas/Fort Worth	26,376	80%	0.3%
42	LAS Las Vegas Harry Reid	15,801	80%	0.3%
43	MIA Miami	7,603	79%	0.8%
44	SEA Seattle-Tacoma	16,675	79%	0.3%
45	TPA Tampa	5,440	79%	5.5%
46	SAN San Diego	8,006	78%	0.3%
47	FLL Fort Lauderdale	6,037	77%	0.6%
48	CLT Charlotte Douglas	21,292	77%	1.9%

Routes need 120+ flights in the month to be ranked (1,761 were). Figures as published by BTS; frozen 2026-08. Method.

September 2024 report

Airlines

Most delayed routes

Most reliable routes

Airports