Most reliable rockets

Success rate of rockets with at least 25 orbital launches, by GCAT outcome codes.

Most launched rockets Most reliable rockets Busiest spaceports Busiest years in spaceflight Most time in space Most spaceflights

#	Rocket	Success rate	Launches
1	Chang Zheng 2D102 of 102	100.0%	102
2	Soyuz-U272 of 72	100.0%	72
3	Atlas V 40141 of 41	100.0%	41
4	H-IIA 20235 of 35	100.0%	35
5	Atlas IIAS30 of 30	100.0%	30
6	Chang Zheng 2F29 of 29	100.0%	29
7	Delta 7925-9.528 of 28	100.0%	28
8	Chang Zheng 6A28 of 28	100.0%	28
9	Chang Zheng 3A27 of 27	100.0%	27
10	Falcon 9696 of 698	99.7%	699
11	Space Shuttle134 of 135	99.3%	140
12	Tsiklon-2104 of 105	99.0%	105
13	Vostok 8A92M92 of 93	98.9%	94
14	Soyuz-2-1A81 of 82	98.8%	82
15	Chang Zheng 2C73 of 74	98.6%	74
16	Ariane 5ECA71 of 72	98.6%	72
17	Soyuz-FG69 of 70	98.6%	70
18	Chang Zheng 4B58 of 59	98.3%	59
19	Soyuz-2-1B85 of 87	97.7%	87
20	Ariane 44L39 of 40	97.5%	40
21	Soyuz-U-PVB150 of 154	97.4%	154
22	Delta 792533 of 34	97.1%	34
23	Soyuz-U614 of 633	97.0%	633
24	Thorad SLV-2G Agena D29 of 30	96.7%	30
25	Delta 291429 of 30	96.7%	30
26	PSLV29 of 30	96.7%	30
27	Chang Zheng 4C57 of 59	96.6%	59
28	Ariane 44LP25 of 26	96.2%	26
29	Voskhod 11A57286 of 299	95.7%	299
30	Electron85 of 89	95.5%	89
31	Molniya 8K78M259 of 272	95.2%	272
32	Chang Zheng 3B97 of 102	95.1%	102
33	Kosmos 11K65M423 of 445	95.1%	446
34	Proton-K/DM-2M38 of 40	95.0%	40
35	Titan IIIC34 of 36	94.4%	36
36	Tsiklon-3115 of 122	94.3%	122
37	Soyuz 11A51130 of 32	93.8%	32
38	Rokot30 of 32	93.8%	32
39	Proton-K/DM-2104 of 111	93.7%	111
40	Kosmos 11K63118 of 126	93.7%	126
41	Thor SLV-2A Agena D57 of 61	93.4%	61
42	Kuaizhou-1A28 of 30	93.3%	31
43	PSLV-XL25 of 27	92.6%	27
44	Proton-K/DM61 of 66	92.4%	66
45	Proton-M/Briz-M93 of 101	92.1%	101
46	Atlas SLV-3 Agena D44 of 48	91.7%	48
47	Zenit-3SL33 of 36	91.7%	36
48	Vostok 8A9240 of 44	90.9%	45
49	Atlas SLV-3D Centaur29 of 32	90.6%	32
50	Pegasus XL27 of 30	90.0%	30
51	Proton-K26 of 29	89.7%	29
52	Zenit-229 of 35	82.9%	35
53	Thor Agena B33 of 40	82.5%	40
54	Atlas Agena B21 of 28	75.0%	28
55	Kosmos 63S126 of 38	68.4%	38
56	Proton-K/D23 of 37	62.2%	38
57	Molniya 8K7820 of 40	50.0%	40

Sources: GCAT (CC BY 4.0) for launches; Wikidata (CC0) for people.