← July 2025 · September 2025 → · All months

77% of flights arrived on time in August 2025, and 1.0% were cancelled. Hawaiian Airlines was the most punctual airline (85%); Frontier Airlines was the least (69%). The most delayed busy route was DFW → MCO (47% on time).

Airlines

#	Airline	Flights	On time	Year earlier	Cancelled
1	Hawaiian Airlines	6,946	85%	87%	0.2%
2	Delta Air Lines	143,269	83%	79%	0.7%
3	Southwest Airlines	114,519	78%	79%	0.4%
4	Spirit Airlines	17,155	77%	67%	0.5%
5	Alaska Airlines	38,880	76%	76%	0.9%
6	Allegiant Air	10,499	76%	73%	0.1%
7	United Airlines	128,217	76%	76%	1.2%
8	JetBlue	20,204	74%	61%	0.7%
9	American Airlines	169,856	73%	72%	1.8%
10	Frontier Airlines	16,697	69%	65%	1.6%

Most delayed routes

Route	Flights	On time
DFW → MCO	369	47%
DFW → JAX	148	47%
DFW → PDX	240	48%
DFW → SAN	296	49%
PHL → SJU	126	51%
DFW → MIA	420	52%
DFW → SLC	321	52%
DFW → TPA	245	53%
DFW → SMF	156	54%
ASE → DFW	124	54%
DFW → STL	203	54%
DFW → CVG	150	55%
JAC → ORD	121	55%
DFW → SAT	383	56%
DFW → SFO	336	56%
DFW → ONT	212	56%
MCO → DFW	370	56%
CLT → MCO	398	56%
DFW → MSY	236	56%
DFW → DEN	514	56%

Most reliable routes

Route	Flights	On time
FAT → SLC	120	98%
SLC → FAT	120	97%
IDA → SLC	122	96%
SGU → SLC	132	95%
PSC → SLC	120	95%
SLC → SGU	132	95%
HNL → ITO	534	93%
RNO → PDX	122	93%
KOA → HNL	625	93%
OGG → HNL	901	93%
SLC → LGB	127	93%
MSP → PDX	169	93%
HNL → LIH	682	93%
HNL → PHX	124	93%
MCI → ATL	303	93%
ORF → IAD	124	93%
ITO → HNL	534	93%
SAN → LAX	211	92%
GEG → LAX	131	92%
SJC → SLC	166	92%

Airports

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

#	Airport	Departures	On time	Cancelled
1	HNL Honolulu	4,921	88%	0.2%
2	SLC Salt Lake City	10,034	84%	0.4%
3	SJC San Jose	4,094	83%	0.4%
4	SMF Sacramento	5,162	82%	0.5%
5	LAX Los Angeles LAX	17,089	82%	0.6%
6	PDX Portland	7,088	81%	0.6%
7	IND Indianapolis	4,288	81%	1.1%
8	PIT Pittsburgh	4,102	81%	1.2%
9	DTW Detroit Metro	12,941	81%	0.5%
10	CLE Cleveland Hopkins	3,926	81%	1.8%
11	CMH John Glenn Columbus	3,944	81%	1.4%
12	MSP Minneapolis-St. Paul	11,679	81%	0.4%
13	PHX Phoenix Sky Harbor	14,429	80%	0.4%
14	BOS Boston Logan	12,580	80%	1.0%
15	SAT San Antonio	3,487	80%	1.2%
16	LGA LaGuardia	14,282	80%	1.7%
17	BNA Nashville	9,347	80%	0.8%
18	CVG Cincinnati Northern Kentucky	3,734	80%	0.9%
19	IAD Washington Dulles	8,094	80%	0.6%
20	SNA Orange County John Wayne	3,980	79%	1.0%
21	JFK New York JFK	11,030	79%	1.0%
22	MSY New Orleans	3,759	79%	1.1%
23	STL St. Louis Lambert	5,962	79%	0.9%
24	LAS Las Vegas Harry Reid	15,120	79%	0.5%
25	SFO San Francisco	12,830	79%	0.6%
26	MCI Kansas City	4,401	79%	0.9%
27	BWI Baltimore/Washington	8,397	78%	0.8%
28	RDU Raleigh-Durham	5,376	78%	1.2%
29	ATL Atlanta Hartsfield-Jackson	29,911	78%	0.8%
30	HOU Houston Hobby	4,640	78%	0.4%
31	AUS Austin-Bergstrom	7,343	77%	0.9%
32	MDW Chicago Midway	6,757	77%	0.7%
33	EWR Newark	11,545	76%	1.3%
34	SAN San Diego	8,523	76%	0.8%
35	DCA Washington Reagan National	12,558	75%	2.0%
36	DAL Dallas Love Field	5,730	75%	0.5%
37	IAH Houston Bush Intercontinental	14,490	75%	0.6%
38	CLT Charlotte Douglas	19,981	74%	0.8%
39	FLL Fort Lauderdale	6,561	74%	0.5%
40	TPA Tampa	6,171	74%	0.7%
41	PHL Philadelphia	11,703	74%	1.1%
42	SEA Seattle-Tacoma	17,749	73%	0.7%
43	ORD Chicago O'Hare	32,057	72%	2.5%
44	DEN Denver	28,084	69%	0.7%
45	MIA Miami	8,731	67%	0.9%
46	MCO Orlando	12,751	67%	0.8%
47	DFW Dallas/Fort Worth	27,161	64%	2.6%

Routes need 120+ flights in the month to be ranked (1,913 were). Figures as published by BTS; frozen 2026-08. Method.

August 2025 report

Airlines

Most delayed routes

Most reliable routes

Airports