List of interplanetary voyages 1970s 1970s

| Spacecraft | Destination | Launched | Closest_approach | Time_elapsed |
|---|---|---|---|---|
| Mariner 10 | Venus | 3 November 1973 | 5 February 1974 | 95 days (3 months, 3 days) |
| Mariner 10 | Mercury | 3 November 1973 | 29 March 1974 | 147 days (4 months, 27 days) |
| Mariner 10 | Mercury | 3 November 1973 | 21 September 1974 | 323 days (10 months, 19 days) |
| Mariner 10 | Mercury | 3 November 1973 | 16 March 1975 | 499 days (1 yr, 4 mo, 14 d) |
| Voyager 2 | Jupiter | 20 August 1977 | 9 July 1979 | 689 days (1 yr, 10 mo, 20 d) |
| Voyager 2 | Saturn | 20 August 1977 | 5 August 1981 | 1447 days (3 yr, 11 mo, 17 d) |
| Voyager 2 | Uranus | 20 August 1977 | 24 January 1986 | 3080 days (8 yr, 5 mo, 5 d) |