← February 2025 · April 2025 → · All months

79% of flights arrived on time in March 2025, and 1.1% were cancelled. Delta Air Lines was the most punctual airline (82%); Frontier Airlines was the least (73%). The most delayed busy route was ASE → ORD (49% on time).

Airlines

#	Airline	Flights	On time	Year earlier	Cancelled
1	Delta Air Lines	135,157	82%	85%	0.6%
2	Southwest Airlines	122,432	82%	77%	0.8%
3	Hawaiian Airlines	6,811	81%	87%	1.8%
4	United Airlines	124,010	81%	82%	0.8%
5	Spirit Airlines	19,828	80%	70%	1.1%
6	Alaska Airlines	33,406	80%	78%	0.8%
7	Allegiant Air	13,355	77%	76%	0.6%
8	JetBlue	21,304	76%	68%	0.8%
9	American Airlines	169,783	76%	78%	2.1%
10	Frontier Airlines	18,846	73%	66%	2.0%

Most delayed routes

Route	Flights	On time
ASE → ORD	176	49%
ORD → ASE	176	51%
ASE → DFW	155	52%
DFW → ASE	155	56%
LAX → ASE	148	57%
MIA → IND	126	58%
DFW → PNS	162	60%
DFW → PBI	120	62%
MIA → MSP	123	62%
MIA → EWR	419	62%
PIA → ORD	186	62%
TPA → DCA	190	62%
RSW → PHL	151	62%
PBI → DFW	120	63%
EYW → CLT	120	63%
DFW → MFE	241	63%
PNS → DFW	162	64%
MSY → DFW	272	64%
ORD → TVC	212	64%
ORD → ATW	270	64%

Most reliable routes

Route	Flights	On time
LAX → BWI	121	97%
LAX → OGG	132	95%
LAX → SLC	413	94%
OAK → LGB	147	94%
BOI → LAX	151	93%
ONT → OAK	136	93%
OGG → LIH	124	93%
GEG → PDX	147	93%
SJC → SLC	146	92%
OAK → SNA	234	92%
GSO → ATL	231	92%
SEA → DTW	141	92%
CMH → EWR	152	92%
GSP → ATL	262	92%
LAX → OAK	198	92%
SEA → MSP	198	92%
LGB → OAK	147	92%
OGG → SFO	121	92%
SLC → MSP	145	92%
DEN → LIT	130	92%

Airports

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

#	Airport	Departures	On time	Cancelled
1	OAK Oakland	3,204	88%	0.5%
2	SJC San Jose	4,060	86%	0.6%
3	PDX Portland	5,791	86%	0.4%
4	SMF Sacramento	4,943	85%	0.5%
5	HNL Honolulu	5,384	85%	1.2%
6	PIT Pittsburgh	3,976	84%	1.1%
7	SLC Salt Lake City	10,294	84%	0.2%
8	LAX Los Angeles LAX	16,643	84%	0.4%
9	SAT San Antonio	3,694	84%	0.8%
10	CMH John Glenn Columbus	4,010	83%	0.8%
11	SEA Seattle-Tacoma	14,277	83%	0.4%
12	SNA Orange County John Wayne	3,855	82%	1.0%
13	IND Indianapolis	4,636	82%	1.1%
14	CLE Cleveland Hopkins	3,933	82%	1.3%
15	IAD Washington Dulles	7,747	82%	0.6%
16	HOU Houston Hobby	4,694	82%	0.8%
17	DTW Detroit Metro	11,751	81%	0.8%
18	RDU Raleigh-Durham	5,192	81%	1.1%
19	STL St. Louis Lambert	5,789	81%	0.9%
20	DEN Denver	26,655	81%	0.6%
21	BOS Boston Logan	12,465	81%	0.6%
22	MCI Kansas City	4,272	81%	1.6%
23	PHL Philadelphia	9,873	81%	1.3%
24	MDW Chicago Midway	6,106	81%	0.9%
25	MSP Minneapolis-St. Paul	10,775	80%	0.8%
26	AUS Austin-Bergstrom	7,388	80%	1.0%
27	CVG Cincinnati Northern Kentucky	3,833	80%	1.0%
28	LAS Las Vegas Harry Reid	16,612	80%	0.6%
29	BNA Nashville	8,889	80%	0.9%
30	BWI Baltimore/Washington	7,949	80%	1.2%
31	LGA LaGuardia	13,907	80%	1.2%
32	IAH Houston Bush Intercontinental	14,350	80%	1.0%
33	PHX Phoenix Sky Harbor	19,278	80%	0.5%
34	JFK New York JFK	10,360	80%	1.0%
35	SFO San Francisco	12,352	80%	0.7%
36	EWR Newark	11,880	80%	0.9%
37	MSY New Orleans	4,854	79%	0.9%
38	DAL Dallas Love Field	6,244	78%	1.3%
39	SAN San Diego	8,118	78%	0.8%
40	ATL Atlanta Hartsfield-Jackson	30,003	77%	0.7%
41	CLT Charlotte Douglas	21,361	77%	1.5%
42	SJU San Juan	3,580	77%	0.8%
43	MCO Orlando	15,071	76%	1.2%
44	DCA Washington Reagan National	12,737	75%	2.2%
45	ORD Chicago O'Hare	28,383	74%	1.0%
46	FLL Fort Lauderdale	8,771	74%	1.1%
47	TPA Tampa	8,052	74%	1.7%
48	RSW Southwest Florida	4,405	73%	1.3%
49	PBI President Donald J. Trump	3,497	73%	1.2%
50	MIA Miami	10,920	71%	1.3%
51	DFW Dallas/Fort Worth	27,163	71%	3.1%

Routes need 120+ flights in the month to be ranked (1,875 were). Figures as published by BTS; frozen 2026-08. Method.

March 2025 report

Airlines

Most delayed routes

Most reliable routes

Airports