The cheapest Gdansk to Chicago return flight on the radar right now is €409, flying with Icelandair via one or more connections. It covers departures in January 2027, and every dated link below opens that exact GDN–ORD search on Skyscanner. That is roughly 13% below the €471 this route usually costs. Across 89 recorded checks it has ranged between €325 and €828. Our sampling points to January 2027 as the cheapest month to fly Gdansk to Chicago.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Gdansk? We track 61 other departure cities for Chicago, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Gdansk to Chicago is often still worth booking within a day or two of the fare we found.