The 2017–18 UEFA Europa League knockout phase began on 13 February and ended on 16 May 2018 with the final at the Parc Olympique Lyonnais in Décines-Charpieu, France, to decide the champions of the 2017–18 UEFA Europa League.
The schedule of the knockout phase is as follows (all draws were held at the UEFA headquarters in Nyon, Switzerland).
[1] Matches may also be played on Tuesdays or Wednesdays instead of the regular Thursdays due to scheduling conflicts.
The team that scores more goals on aggregate over the two legs advance to the next round.
If the aggregate score is level, the away goals rule is applied, i.e. the team that scored more goals away from home over the two legs advances.
If away goals are also equal, then thirty minutes of extra time is played.
If no goals are scored during extra time, the tie is decided by penalty shoot-out.
In the final, which is played as a single match, if scores are level at the end of normal time, extra time is played, followed by penalty shoot-out if scores remain tied.
[2] The mechanism of the draws for each round is as follows: On 17 July 2014, the UEFA emergency panel ruled that Ukrainian and Russian clubs would not be drawn against each other "until further notice" due to the political unrest between the countries.
[57] For the first time since the 2004–05 UEFA Cup, all the eight teams at this stage represented different national associations.
The final was played at the Parc Olympique Lyonnais in Décines-Charpieu on 16 May 2018.