← September 2023 · November 2023 → · All months

84% of flights arrived on time in October 2023, and 0.3% were cancelled. Delta Air Lines was the most punctual airline (91%); Frontier Airlines was the least (74%). The most delayed busy route was IAH → ELP (59% on time).

Airlines

#	Airline	Flights	On time	Year earlier	Cancelled
1	Delta Air Lines	128,532	91%	—	0.1%
2	United Airlines	113,864	86%	—	0.3%
3	Alaska Airlines	32,331	85%	—	0.2%
4	American Airlines	153,035	84%	—	0.5%
5	Southwest Airlines	128,588	80%	—	0.2%
6	Spirit Airlines	23,294	80%	—	1.6%
7	Allegiant Air	9,643	79%	—	0.2%
8	Hawaiian Airlines	6,915	76%	—	1.7%
9	JetBlue	22,066	74%	—	0.2%
10	Frontier Airlines	17,270	74%	—	0.7%

Most delayed routes

Route	Flights	On time
IAH → ELP	155	59%
IAH → DFW	565	64%
IAH → BHM	148	65%
HOU → DFW	204	65%
LAS → FAT	182	65%
LAS → HOU	172	66%
FLL → RDU	124	66%
BOS → SAN	147	67%
IAH → HRL	126	67%
IAH → OKC	212	67%
LAS → SAN	624	67%
BWI → HOU	145	68%
DEN → ICT	207	68%
DEN → HOU	212	68%
JFK → PBI	156	68%
CPR → DEN	155	68%
DEN → ELP	165	68%
LAS → ELP	124	69%
PHX → HNL	124	69%
ORD → SCE	128	69%

Most reliable routes

Route	Flights	On time
PHL → MSP	128	98%
XNA → ATL	123	98%
TUL → ATL	144	97%
SAT → ORD	134	97%
CLE → IAD	124	97%
DCA → PHL	124	97%
PWM → LGA	124	97%
MKE → ATL	214	97%
DAB → ATL	120	97%
EWR → ROC	120	97%
IAD → IND	120	97%
MLB → ATL	120	97%
CHS → ATL	237	97%
ATL → ECP	170	96%
ATL → SLC	249	96%
CLT → EWN	158	96%
LYH → CLT	180	96%
SLC → ATL	250	96%
GEG → SLC	148	96%
ATL → GSO	193	96%

Airports

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

#	Airport	Departures	On time	Cancelled
1	SLC Salt Lake City	9,443	89%	0.1%
2	EWR Newark	12,767	89%	0.2%
3	IAD Washington Dulles	6,562	89%	0.1%
4	DTW Detroit Metro	11,305	89%	0.2%
5	PIT Pittsburgh	3,772	89%	0.1%
6	CMH John Glenn Columbus	3,743	89%	0.1%
7	ATL Atlanta Hartsfield-Jackson	29,261	88%	0.1%
8	LGA LaGuardia	14,124	88%	0.2%
9	PDX Portland	5,953	88%	0.3%
10	CVG Cincinnati Northern Kentucky	3,824	87%	0.2%
11	IND Indianapolis	4,174	87%	0.4%
12	DCA Washington Reagan National	12,318	87%	0.1%
13	CLE Cleveland Hopkins	3,948	87%	0.3%
14	MSP Minneapolis-St. Paul	10,784	87%	0.1%
15	PHL Philadelphia	9,732	87%	0.2%
16	RDU Raleigh-Durham	5,573	86%	0.2%
17	SAT San Antonio	3,717	85%	0.5%
18	SEA Seattle-Tacoma	15,737	85%	0.1%
19	TPA Tampa	6,607	85%	0.3%
20	SFO San Francisco	12,022	85%	0.4%
21	CLT Charlotte Douglas	20,422	85%	0.1%
22	BNA Nashville	9,028	85%	0.3%
23	MCI Kansas City	4,447	85%	0.3%
24	SJC San Jose	4,456	84%	0.3%
25	MSY New Orleans	4,389	84%	0.2%
26	LAX Los Angeles LAX	16,973	84%	0.2%
27	SMF Sacramento	4,717	84%	0.2%
28	STL St. Louis Lambert	5,945	84%	0.1%
29	SNA Orange County John Wayne	3,912	84%	0.3%
30	ORD Chicago O'Hare	25,929	83%	0.2%
31	OAK Oakland	3,920	83%	0.5%
32	HNL Honolulu	5,274	83%	0.8%
33	PHX Phoenix Sky Harbor	15,643	83%	0.1%
34	BOS Boston Logan	12,477	83%	0.1%
35	MIA Miami	8,159	82%	0.3%
36	MCO Orlando	13,927	81%	0.6%
37	JFK New York JFK	10,920	81%	0.1%
38	AUS Austin-Bergstrom	8,391	81%	0.2%
39	IAH Houston Bush Intercontinental	13,895	81%	0.3%
40	HOU Houston Hobby	5,159	81%	0.9%
41	DAL Dallas Love Field	6,591	81%	0.5%
42	SAN San Diego	8,082	80%	0.3%
43	DFW Dallas/Fort Worth	25,948	80%	1.5%
44	MDW Chicago Midway	7,653	79%	0.1%
45	BWI Baltimore/Washington	8,785	79%	0.3%
46	DEN Denver	26,507	78%	0.4%
47	FLL Fort Lauderdale	7,290	77%	0.3%
48	LAS Las Vegas Harry Reid	17,651	76%	0.4%

Routes need 120+ flights in the month to be ranked (1,806 were). Figures as published by BTS; frozen 2026-08. Method.

October 2023 report

Airlines

Most delayed routes

Most reliable routes

Airports