The Flyers also will acquire first- and third-round picks in the 2015 draft.
Coburn had one goal and nine points in 39 games this season for the Flyers. Coburn has 37 goals and 129 assists over his 10-year career with the Flyers and Atlanta Thrashers. He was drafted eighth overall by Atlanta in 2003 and traded to the Flyers in 2007.
Gudas has two goals and five points in 31 games.