← December 2025 · February 2026 → · All months

75% of flights arrived on time in January 2026, and 4.8% were cancelled. Southwest Airlines was the most punctual airline (82%); JetBlue was the least (64%). The most delayed busy route was ORD → ASE (45% on time).

Airlines

#	Airline	Flights	On time	Year earlier	Cancelled
1	Southwest Airlines	104,002	82%	82%	2.6%
2	Alaska Airlines	39,448	78%	80%	2.5%
3	United Airlines	118,511	77%	78%	3.3%
4	Delta Air Lines	127,122	76%	79%	4.5%
5	Allegiant Air	8,963	74%	75%	2.4%
6	American Airlines	159,501	71%	76%	8.1%
7	Frontier Airlines	15,382	69%	72%	3.6%
8	Spirit Airlines	11,915	67%	79%	7.2%
9	JetBlue	18,109	64%	74%	6.6%

Most delayed routes

Route	Flights	On time
ORD → ASE	146	45%
CLE → DCA	131	46%
ASE → DFW	160	49%
BOS → PBI	219	50%
PHL → SJU	192	51%
JFK → DCA	235	51%
ORD → DAY	240	51%
FLL → AUS	120	52%
DTW → CLE	141	52%
DTW → IAD	158	52%
BOS → SJU	170	52%
ORD → TYS	175	53%
SJU → PHL	194	53%
ASE → ORD	146	53%
ORD → LNK	123	53%
DTW → DCA	249	53%
ORD → MKE	373	53%
ORD → CAK	142	54%
BOS → RSW	179	54%
DFW → DSM	123	54%

Most reliable routes

Route	Flights	On time
SJC → SLC	124	96%
RNO → DEN	190	96%
BUR → SJC	157	95%
SNA → SJC	210	95%
LGB → SLC	130	95%
SGU → SLC	122	94%
BUR → SMF	187	94%
OAK → LAX	159	94%
SJC → BUR	157	94%
BUR → DEN	154	94%
OAK → ONT	120	93%
SLC → LGB	130	93%
SJC → SNA	212	93%
SJC → DEN	189	93%
OAK → PDX	147	93%
SJC → LAX	320	93%
ABQ → LAX	158	92%
BUR → OAK	209	92%
BOI → PDX	139	92%
MSY → IAH	241	92%

Airports

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

#	Airport	Departures	On time	Cancelled
1	SJC San Jose	3,250	88%	1.2%
2	HOU Houston Hobby	4,081	86%	2.5%
3	PDX Portland	5,380	85%	1.4%
4	SNA Orange County John Wayne	3,673	85%	2.1%
5	SLC Salt Lake City	9,554	84%	1.8%
6	SMF Sacramento	4,251	83%	1.4%
7	IAH Houston Bush Intercontinental	13,745	83%	3.2%
8	MSY New Orleans	3,915	81%	4.1%
9	MCI Kansas City	3,808	81%	3.4%
10	LAS Las Vegas Harry Reid	13,835	81%	1.9%
11	DEN Denver	24,484	81%	1.7%
12	SEA Seattle-Tacoma	13,265	80%	1.9%
13	SFO San Francisco	11,517	80%	2.6%
14	SAN San Diego	8,047	80%	3.0%
15	PHX Phoenix Sky Harbor	16,673	79%	2.4%
16	LAX Los Angeles LAX	15,153	79%	2.2%
17	STL St. Louis Lambert	5,099	79%	3.6%
18	AUS Austin-Bergstrom	6,808	79%	4.7%
19	MDW Chicago Midway	4,933	79%	2.2%
20	HNL Honolulu	5,054	78%	1.4%
21	BWI Baltimore/Washington	6,934	78%	5.6%
22	BNA Nashville	8,067	78%	7.1%
23	DAL Dallas Love Field	5,470	78%	5.5%
24	TPA Tampa	6,435	78%	3.8%
25	CMH John Glenn Columbus	3,571	76%	6.1%
26	IND Indianapolis	4,110	76%	4.6%
27	RSW Southwest Florida	3,467	75%	4.1%
28	IAD Washington Dulles	6,805	75%	5.9%
29	CVG Cincinnati Northern Kentucky	3,202	75%	6.0%
30	ATL Atlanta Hartsfield-Jackson	27,223	75%	5.0%
31	PIT Pittsburgh	3,546	75%	5.9%
32	RDU Raleigh-Durham	4,796	74%	8.3%
33	CLT Charlotte Douglas	18,563	74%	10.5%
34	LGA LaGuardia	13,555	73%	8.1%
35	EWR Newark	11,164	73%	6.5%
36	MCO Orlando	13,790	72%	3.9%
37	MIA Miami	10,443	72%	5.0%
38	MSP Minneapolis-St. Paul	9,619	71%	2.3%
39	PHL Philadelphia	9,129	71%	7.2%
40	PBI President Donald J. Trump	3,108	70%	5.5%
41	CLE Cleveland Hopkins	3,306	70%	5.3%
42	JFK New York JFK	9,928	68%	7.9%
43	BOS Boston Logan	10,403	68%	7.5%
44	DFW Dallas/Fort Worth	24,257	68%	9.8%
45	DCA Washington Reagan National	12,323	68%	9.4%
46	FLL Fort Lauderdale	8,610	68%	4.8%
47	SJU San Juan	3,306	67%	8.0%
48	ORD Chicago O'Hare	27,221	64%	3.8%
49	DTW Detroit Metro	10,784	62%	3.8%

Routes need 120+ flights in the month to be ranked (1,690 were). Figures as published by BTS; frozen 2026-08. Method.

January 2026 report

Airlines

Most delayed routes

Most reliable routes

Airports