2004 in spaceflight
This article outlines notable events occurring in 2004 in spaceflight, including major launches and EVAs.
Launches
August
Orbital launch statistics
By country
For the purposes of this section, the yearly tally of orbital launches by country assigns each flight to the country of origin of the rocket, not to the launch services provider or the spaceport.By orbit
| Orbital regime | Launches | Failures | Accidentally achieved | Remarks | |
| Transatmospheric | 0 | 0 | 0 | 0 | |
| Low [Earth orbit|Low Earth] | 23 | 22 | 1 | 0 | 6 to ISS |
| Medium Earth / Molniya | 5 | 5 | 0 | 2 | |
| Geosynchronous / Geosynchronous [transfer orbit|GTO] | 23 | 21 | 2 | 0 | |
| High Earth / Lunar transfer | 1 | 1 | 0 | 0 | |
| Heliocentric / Planetary transfer | 2 | 2 | 0 | 0 | |
| Total | 54 | 51 | 3 | 2 |