The most delayed flight routes in the US

Busy nonstop routes with the lowest share of flights arriving on time. Aug 2025 – Jul 2026.

Only routes with at least 720 flights in the period are ranked.

#	Route	On time	Cancelled	Avg delay	Flights
1	PHL → DCA Philadelphia to Washington	58%	4.3%	35 min	789
2	ACV → SFO Arcata/Eureka to San Francisco	60%	2.9%	35 min	1,292
3	SBP → SFO San Luis Obispo to San Francisco	60%	1.2%	30 min	1,145
4	STL → SFO St. Louis to San Francisco	60%	0.8%	30 min	761
5	FLL → AUS Fort Lauderdale to Austin	60%	2.7%	25 min	1,166
6	LAS → SFO Las Vegas to San Francisco	61%	0.7%	24 min	6,115
7	BDL → SJU Hartford to San Juan	61%	2.0%	39 min	966
8	ORD → ASE Chicago to Aspen	61%	3.0%	39 min	1,134
9	DFW → SFO Dallas/Fort Worth to San Francisco	61%	2.4%	28 min	4,179
10	DAL → LGA Dallas to New York	61%	3.1%	27 min	1,536
11	PDX → HNL Portland to Honolulu	61%	1.4%	25 min	908
12	HPN → DCA White Plains to Washington	62%	6.3%	40 min	1,356
13	DFW → MSN Dallas/Fort Worth to Madison	62%	2.0%	36 min	1,093
14	ORD → CRW Chicago to Charleston/Dunbar	62%	3.4%	33 min	948
15	RNO → SFO Reno to San Francisco	62%	1.4%	26 min	1,928
16	RDU → DCA Raleigh/Durham to Washington	62%	5.2%	31 min	2,009
17	SEA → SFO Seattle to San Francisco	62%	1.1%	23 min	6,791
18	ONT → SFO Ontario to San Francisco	62%	0.8%	26 min	1,309
19	DFW → JAC Dallas/Fort Worth to Jackson	62%	2.1%	34 min	749
20	BUR → SFO Burbank to San Francisco	62%	1.2%	27 min	3,066
21	LAX → SFO Los Angeles to San Francisco	62%	0.8%	23 min	11,235
22	SAN → SFO San Diego to San Francisco	62%	1.3%	24 min	6,660
23	SBA → SFO Santa Barbara to San Francisco	63%	1.2%	28 min	1,640
24	DCA → HPN Washington to White Plains	63%	6.4%	32 min	1,359
25	ORD → LNK Chicago to Lincoln	63%	3.4%	35 min	1,586
26	MSY → BOS New Orleans to Boston	63%	2.1%	31 min	853
27	DFW → BOI Dallas/Fort Worth to Boise	63%	3.0%	28 min	802
28	DFW → JAX Dallas/Fort Worth to Jacksonville	63%	2.7%	27 min	1,834
29	CVG → DCA Cincinnati to Washington	63%	5.0%	39 min	1,017
30	PHL → SJU Philadelphia to San Juan	63%	3.3%	30 min	1,932
31	PSP → SFO Palm Springs to San Francisco	63%	0.9%	27 min	2,566
32	SMF → SFO Sacramento to San Francisco	63%	1.7%	26 min	1,356
33	MRY → SFO Monterey to San Francisco	64%	0.5%	24 min	733
34	DCA → GRR Washington to Grand Rapids	64%	5.1%	32 min	730
35	DCA → ORF Washington to Norfolk	64%	4.3%	27 min	1,041
36	FLL → CMH Fort Lauderdale to Columbus	64%	3.0%	23 min	764
37	DFW → ORF Dallas/Fort Worth to Norfolk	64%	2.8%	25 min	979
38	DFW → MCO Dallas/Fort Worth to Orlando	64%	2.7%	27 min	4,902
39	DFW → FAT Dallas/Fort Worth to Fresno	64%	2.7%	27 min	1,362
40	DFW → EGE Dallas/Fort Worth to Eagle	64%	2.4%	37 min	874
41	DFW → SAN Dallas/Fort Worth to San Diego	64%	2.6%	26 min	3,669
42	ASE → ORD Aspen to Chicago	64%	5.8%	38 min	1,133
43	ORD → SBN Chicago to South Bend	64%	4.5%	32 min	2,737
44	HOU → LGA Houston to New York	64%	2.6%	24 min	1,358
45	SFO → STL San Francisco to St. Louis	64%	0.9%	24 min	760
46	DCA → PHL Washington to Philadelphia	64%	2.7%	29 min	790
47	ORD → FSD Chicago to Sioux Falls	64%	3.5%	31 min	1,799
48	DCA → BUF Washington to Buffalo	64%	4.9%	29 min	1,134
49	ORD → FWA Chicago to Fort Wayne	64%	4.6%	30 min	2,765
50	FLL → RIC Fort Lauderdale to Richmond	64%	3.2%	24 min	809
51	DCA → DAY Washington to Dayton	65%	3.4%	30 min	961
52	DEN → SFO Denver to San Francisco	65%	0.3%	22 min	5,465
53	ORD → MKE Chicago to Milwaukee	65%	4.9%	33 min	5,268
54	CLE → DCA Cleveland to Washington	65%	7.1%	36 min	1,611
55	SFO → SAN San Francisco to San Diego	65%	1.2%	22 min	6,621
56	RDM → SFO Bend/Redmond to San Francisco	65%	0.9%	26 min	1,304
57	FLL → MSY Fort Lauderdale to New Orleans	65%	2.1%	22 min	1,411
58	CRW → ORD Charleston/Dunbar to Chicago	65%	4.0%	36 min	948
59	ORD → FNT Chicago to Flint	65%	4.3%	36 min	1,918
60	ORD → DLH Chicago to Duluth	65%	4.4%	29 min	1,223
61	CLT → SFO Charlotte to San Francisco	65%	1.3%	21 min	1,500
62	LAX → DAL Los Angeles to Dallas	65%	0.7%	17 min	1,471
63	FAT → SFO Fresno to San Francisco	65%	1.3%	29 min	1,250
64	LAS → SAN Las Vegas to San Diego	65%	1.0%	20 min	5,631
65	ORD → CAK Chicago to Akron	65%	5.6%	34 min	2,028
66	AUS → BOS Austin to Boston	65%	2.5%	30 min	1,673
67	ORD → RST Chicago to Rochester	65%	4.8%	33 min	1,057
68	FLL → IND Fort Lauderdale to Indianapolis	65%	2.1%	25 min	1,020
69	DFW → SAV Dallas/Fort Worth to Savannah	65%	2.6%	29 min	1,028
70	OAK → SAN Oakland to San Diego	65%	0.9%	19 min	3,214
71	FLL → PIT Fort Lauderdale to Pittsburgh	65%	2.4%	25 min	1,109
72	ORD → MBS Chicago to Saginaw/Bay City/Midland	65%	3.4%	31 min	1,006
73	BOS → PBI Boston to West Palm Beach/Palm Beach	65%	3.4%	26 min	2,153
74	PBI → BOS West Palm Beach/Palm Beach to Boston	66%	3.6%	29 min	2,152
75	DCA → GSP Washington to Greer	66%	4.4%	30 min	1,018
76	BTV → DCA Burlington to Washington	66%	4.3%	38 min	1,143
77	DFW → CLE Dallas/Fort Worth to Cleveland	66%	2.4%	24 min	1,619
78	DFW → GRR Dallas/Fort Worth to Grand Rapids	66%	3.3%	25 min	987
79	BUF → DCA Buffalo to Washington	66%	4.9%	38 min	1,134
80	PHX → SFO Phoenix to San Francisco	66%	0.6%	23 min	4,692
81	SEA → HNL Seattle to Honolulu	66%	0.9%	25 min	2,933
82	DFW → PDX Dallas/Fort Worth to Portland	66%	2.4%	24 min	2,380
83	FLL → LGA Fort Lauderdale to New York	66%	4.4%	26 min	4,690
84	SLC → SFO Salt Lake City to San Francisco	66%	1.0%	23 min	3,454
85	DFW → PBI Dallas/Fort Worth to West Palm Beach/Palm Beach	66%	2.8%	23 min	1,145
86	SBN → ORD South Bend to Chicago	66%	3.9%	34 min	2,738
87	DEN → OAK Denver to Oakland	66%	0.6%	18 min	1,605
88	HOU → FLL Houston to Fort Lauderdale	66%	0.4%	18 min	809
89	GSP → DCA Greer to Washington	66%	4.7%	30 min	1,017
90	ORF → DCA Norfolk to Washington	66%	3.3%	37 min	1,040
91	ORD → HSV Chicago to Huntsville	66%	3.7%	35 min	1,101
92	DFW → FSD Dallas/Fort Worth to Sioux Falls	66%	3.2%	32 min	1,086
93	DFW → LGA Dallas/Fort Worth to New York	66%	4.9%	27 min	6,705
94	DFW → DSM Dallas/Fort Worth to Des Moines	66%	3.6%	31 min	1,436
95	DFW → RSW Dallas/Fort Worth to Fort Myers	66%	2.8%	25 min	1,339
96	SYR → DCA Syracuse to Washington	66%	5.1%	30 min	1,029
97	DCA → CLE Washington to Cleveland	66%	6.8%	27 min	1,610
98	ORD → DAY Chicago to Dayton	67%	4.9%	40 min	1,784
99	FLL → SJU Fort Lauderdale to San Juan	67%	1.6%	22 min	2,338
100	DCA → ALB Washington to Albany	67%	5.1%	28 min	1,185

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.