← July 2024 · September 2024 → · All months

75% of flights arrived on time in August 2024, and 2.0% were cancelled. Hawaiian Airlines was the most punctual airline (87%); JetBlue was the least (61%). The most delayed busy route was SEA → PHL (44% on time).

Airlines

#	Airline	Flights	On time	Year earlier	Cancelled
1	Hawaiian Airlines	6,829	87%	—	1.5%
2	Delta Air Lines	136,680	79%	—	1.9%
3	Southwest Airlines	118,338	79%	—	0.9%
4	United Airlines	118,847	76%	—	2.0%
5	Alaska Airlines	37,624	76%	—	0.9%
6	Allegiant Air	9,244	73%	—	2.1%
7	American Airlines	169,090	72%	—	2.6%
8	Spirit Airlines	24,676	67%	—	4.0%
9	Frontier Airlines	18,813	65%	—	3.3%
10	JetBlue	20,498	61%	—	4.5%

Most delayed routes

Route	Flights	On time
SEA → PHL	124	44%
SJU → PHL	128	48%
FLL → PHL	212	49%
DEN → MIA	152	49%
JFK → ROC	155	49%
MIA → RDU	203	50%
PHL → PWM	128	50%
CLT → JAX	179	50%
MIA → LGA	454	51%
JFK → PWM	145	52%
MIA → JAX	148	52%
BOS → SJU	222	52%
JFK → PBI	155	52%
JFK → BUF	248	52%
MIA → TPA	183	52%
JFK → MCO	420	53%
BOS → PBI	138	53%
PHL → MIA	271	53%
MIA → PHL	273	53%
ORD → JFK	243	54%

Most reliable routes

Route	Flights	On time
BOI → LAX	169	95%
PNS → ATL	234	94%
LIH → OGG	124	94%
MOB → ATL	137	94%
OGG → LAX	186	94%
SMF → LGB	164	94%
LIT → ATL	180	94%
MCI → ATL	279	94%
OAK → LGB	153	93%
MEM → ATL	286	93%
OMA → ATL	165	93%
LIH → LAX	146	93%
SAN → LAX	185	93%
HNL → OGG	1000	93%
HNL → KOA	685	93%
CAE → ATL	181	93%
OGG → HNL	1000	93%
ONT → OAK	137	93%
HRL → IAH	122	93%
GSP → ATL	270	93%

Airports

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

#	Airport	Departures	On time	Cancelled
1	HNL Honolulu	5,270	89%	1.1%
2	SJC San Jose	4,684	85%	0.6%
3	HOU Houston Hobby	4,702	85%	0.7%
4	SNA Orange County John Wayne	3,757	83%	0.6%
5	SAT San Antonio	3,678	82%	1.2%
6	PDX Portland	6,739	82%	0.7%
7	SMF Sacramento	5,135	82%	0.7%
8	OAK Oakland	3,679	82%	0.6%
9	MCI Kansas City	4,624	81%	1.5%
10	LAX Los Angeles LAX	17,325	81%	0.8%
11	AUS Austin-Bergstrom	7,229	81%	0.9%
12	DAL Dallas Love Field	5,891	80%	0.5%
13	STL St. Louis Lambert	5,984	80%	1.4%
14	BNA Nashville	8,851	79%	1.7%
15	SLC Salt Lake City	9,816	79%	0.6%
16	CMH John Glenn Columbus	3,851	79%	2.3%
17	IND Indianapolis	3,989	79%	2.8%
18	ATL Atlanta Hartsfield-Jackson	29,521	79%	1.0%
19	PHX Phoenix Sky Harbor	15,539	78%	0.7%
20	SFO San Francisco	12,140	78%	0.9%
21	IAH Houston Bush Intercontinental	14,785	78%	1.0%
22	CLE Cleveland Hopkins	3,801	78%	3.4%
23	MSY New Orleans	3,810	77%	1.8%
24	SAN San Diego	8,625	76%	0.8%
25	CVG Cincinnati Northern Kentucky	3,839	76%	3.1%
26	MSP Minneapolis-St. Paul	11,878	76%	0.7%
27	DTW Detroit Metro	11,969	75%	1.5%
28	PIT Pittsburgh	4,119	75%	3.3%
29	MDW Chicago Midway	7,199	75%	0.8%
30	LAS Las Vegas Harry Reid	16,211	75%	0.8%
31	IAD Washington Dulles	7,451	74%	3.1%
32	DFW Dallas/Fort Worth	28,114	73%	1.0%
33	SEA Seattle-Tacoma	18,115	72%	0.8%
34	DEN Denver	27,334	72%	0.7%
35	RDU Raleigh-Durham	5,640	72%	3.3%
36	TPA Tampa	5,902	71%	4.3%
37	DCA Washington Reagan National	12,165	70%	4.0%
38	BOS Boston Logan	13,317	70%	3.7%
39	ORD Chicago O'Hare	29,155	69%	1.3%
40	LGA LaGuardia	14,164	68%	7.7%
41	CLT Charlotte Douglas	22,289	67%	3.0%
42	EWR Newark	11,936	66%	7.6%
43	BWI Baltimore/Washington	8,960	66%	2.6%
44	MCO Orlando	12,173	66%	3.1%
45	SJU San Juan	3,026	66%	2.5%
46	PHL Philadelphia	12,169	64%	4.6%
47	FLL Fort Lauderdale	6,885	64%	3.5%
48	JFK New York JFK	10,862	64%	6.4%
49	MIA Miami	8,459	60%	4.2%

Routes need 120+ flights in the month to be ranked (1,877 were). Figures as published by BTS; frozen 2026-08. Method.

August 2024 report

Airlines

Most delayed routes

Most reliable routes

Airports