Most Reliable Rockets
Among rockets with 50 launches or more, the most reliable is Atlas II: 63 of its 63 launches succeeded (100%). Then Falcon 9 at 99.6% and Space Shuttle at 99%.
- 1. Atlas II100% of 63
- 2. Falcon 999.6% of 697
- 3. Space Shuttle99% of 135
- 4. Atlas V99% of 110
- 5. Long March 2D99% of 105
- 6. Delta II99% of 155
- 7. Soyuz-FG99% of 70
- 8. Long March 4B98% of 58
- 9. H-IIA98% of 50
- 10. Long March 2C98% of 89
The top 25
| # | Rocket | Success rate | Flown |
|---|---|---|---|
| 1 | Atlas II | 100% of 63 | 1991 to 2004 |
| 2 | Falcon 9 | 99.6% of 697 | 2010 to 2026 |
| 3 | Space Shuttle | 99% of 135 | 1981 to 2011 |
| 4 | Atlas V | 99% of 110 | 2002 to 2026 |
| 5 | Long March 2D | 99% of 105 | 1992 to 2026 |
| 6 | Delta II | 99% of 155 | 1989 to 2018 |
| 7 | Soyuz-FG | 99% of 70 | 2001 to 2019 |
| 8 | Long March 4B | 98% of 58 | 1999 to 2026 |
| 9 | H-IIA | 98% of 50 | 2001 to 2025 |
| 10 | Long March 2C | 98% of 89 | 1982 to 2026 |
| 11 | Ariane 4 | 97% of 116 | 1988 to 2003 |
| 12 | Soyuz-U | 97% of 859 | 1973 to 2017 |
| 13 | Long March 4C | 97% of 60 | 2006 to 2026 |
| 14 | Soyuz-2 | 96% of 209 | 2006 to 2026 |
| 15 | Tsiklon | 96% of 235 | 1967 to 2009 |
| 16 | Long March 3B | 96% of 117 | 1996 to 2026 |
| 17 | Ariane 5 | 96% of 117 | 1996 to 2023 |
| 18 | Electron | 96% of 89 | 2017 to 2026 |
| 19 | Titan | 93% of 212 | 1964 to 2005 |
| 20 | Delta | 93% of 98 | 1972 to 1990 |
| 21 | Kosmos | 93% of 625 | 1961 to 2010 |
| 22 | R-7 | 92% of 632 | 1960 to 2010 |
| 23 | PSLV | 92% of 64 | 1993 to 2026 |
| 24 | Vostok | 92% of 150 | 1958 to 1991 |
| 25 | Proton-K | 92% of 161 | 1968 to 2006 |