Online gameplay lets players interact with and go head-to-head against other players around the world, in Rocket League. Games are played on servers hosted by Psyonix. There are currently a total of 10 server regions across the whole world to choose from.

When playing in a party with friends, you will always be assigned to the same team. If a player leaves early, an AI will fill their place until a new player is found to take their place; so it is possible to be queued into a game already in progress. However, when players leave ranked matches, there is no replacement. Patch v1.04 introduced the option to vote to forfeit matches and the option to spectate matches.

At the end of each game, there is a one-minute grace period between rematches that will end early if all players hit ready. Voting to 'Rematch' will put all remaining players on the same teams as before, where otherwise the player teams can be shuffled. Players in a party will always be on the same team when finding a match.