74% of flights arrived on time in June 2024, and 1.3% were cancelled. Hawaiian Airlines was the most punctual airline (84%); Frontier Airlines was the least (61%). The most delayed busy route was PHL → SJU (43% on time).

Airlines

#	Airline	Flights	On time	Year earlier	Cancelled
1	Hawaiian Airlines	6,597	84%	—	0.7%
2	Delta Air Lines	133,693	79%	—	0.8%
3	Alaska Airlines	36,131	77%	—	0.6%
4	United Airlines	113,679	76%	—	1.5%
5	Southwest Airlines	123,817	74%	—	0.3%
6	Allegiant Air	12,229	73%	—	1.2%
7	American Airlines	163,667	72%	—	1.8%
8	Spirit Airlines	23,437	71%	—	2.6%
9	JetBlue	19,903	70%	—	2.5%
10	Frontier Airlines	18,646	61%	—	3.5%

Most delayed routes

Route	Flights	On time
PHL → SJU	135	43%
DFW → ECP	147	47%
MIA → TPA	194	47%
MDW → MSP	252	48%
MIA → JAX	154	48%
FSD → MSP	132	48%
CLT → SEA	146	49%
BOS → SEA	252	50%
DFW → RDU	191	50%
DFW → MSY	256	50%
SJU → PHL	132	51%
ORD → JFK	237	52%
DFW → MCO	416	52%
DFW → MCI	212	52%
MIA → MCO	326	53%
ORD → MSP	548	53%
DFW → BNA	355	53%
LAS → PHL	149	54%
MSP → FSD	132	54%
DFW → RSW	128	54%

Most reliable routes

Route	Flights	On time
KOA → OGG	146	97%
LEX → ATL	174	97%
BOI → LAX	170	96%
SJC → HNL	120	96%
BOI → PDX	157	96%
PHF → CLT	145	95%
SFO → OGG	124	95%
PNS → ATL	249	94%
MYR → ATL	120	94%
PDX → SNA	120	94%
SYR → IAD	120	94%
TYS → ATL	216	94%
GNV → ATL	145	94%
XNA → ATL	155	93%
ATL → LIT	192	93%
LIT → ATL	192	93%
EWN → CLT	178	93%
HRL → IAH	120	93%
ATL → GNV	144	92%
CAE → ATL	181	92%

Airports

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

#	Airport	Departures	On time	Cancelled
1	HNL Honolulu	5,217	84%	0.5%
2	PDX Portland	6,479	81%	0.5%
3	CMH John Glenn Columbus	3,783	81%	1.5%
4	SJC San Jose	4,461	80%	0.4%
5	IAD Washington Dulles	6,923	80%	0.8%
6	SLC Salt Lake City	9,637	80%	0.3%
7	SMF Sacramento	4,881	79%	0.6%
8	ATL Atlanta Hartsfield-Jackson	29,401	79%	0.5%
9	SNA Orange County John Wayne	3,611	79%	1.2%
10	OAK Oakland	3,723	79%	0.4%
11	IND Indianapolis	4,250	78%	1.4%
12	MCI Kansas City	4,620	78%	0.8%
13	CVG Cincinnati Northern Kentucky	3,968	77%	1.6%
14	PIT Pittsburgh	4,153	77%	1.5%
15	DCA Washington Reagan National	11,745	77%	1.6%
16	SAT San Antonio	3,662	77%	0.9%
17	SFO San Francisco	10,382	77%	0.7%
18	STL St. Louis Lambert	6,033	76%	0.6%
19	CLE Cleveland Hopkins	3,896	76%	1.8%
20	DTW Detroit Metro	11,535	76%	0.6%
21	SEA Seattle-Tacoma	17,248	75%	0.4%
22	LAX Los Angeles LAX	16,815	75%	0.6%
23	LGA LaGuardia	13,581	75%	3.5%
24	PHX Phoenix Sky Harbor	15,407	75%	0.5%
25	BNA Nashville	8,999	75%	1.0%
26	PHL Philadelphia	11,145	75%	2.5%
27	RDU Raleigh-Durham	5,606	74%	2.2%
28	MSY New Orleans	4,234	74%	1.3%
29	BOS Boston Logan	12,672	74%	1.6%
30	TPA Tampa	6,247	73%	1.0%
31	AUS Austin-Bergstrom	7,629	73%	0.8%
32	HOU Houston Hobby	5,075	72%	0.6%
33	LAS Las Vegas Harry Reid	15,806	72%	0.7%
34	SAN San Diego	8,379	72%	0.7%
35	EWR Newark	11,947	71%	3.8%
36	JFK New York JFK	10,455	71%	3.4%
37	CLT Charlotte Douglas	21,626	71%	1.5%
38	DAL Dallas Love Field	6,275	71%	0.3%
39	MCO Orlando	13,175	70%	1.1%
40	DEN Denver	27,585	70%	0.8%
41	BWI Baltimore/Washington	8,799	69%	1.1%
42	MDW Chicago Midway	7,537	69%	0.4%
43	ORD Chicago O'Hare	27,590	69%	1.4%
44	SJU San Juan	3,409	69%	1.8%
45	IAH Houston Bush Intercontinental	15,014	68%	1.4%
46	MSP Minneapolis-St. Paul	11,408	67%	0.5%
47	FLL Fort Lauderdale	7,290	67%	4.0%
48	DFW Dallas/Fort Worth	27,869	64%	1.8%
49	MIA Miami	8,553	61%	4.6%

Routes need 120+ flights in the month to be ranked (1,843 were). Figures as published by BTS; frozen 2026-08. Method.

June 2024 report

Airlines

Most delayed routes

Most reliable routes

Airports