AirHint found the following cheapest return flights from Chicago (ORD) to Prague (PRG) in May 2026 (see full year).

Return flights

01 May - 08 May	Icelandair
04 May - 15 May	Scandinavian Airlines
08 May - 11 May	Scandinavian Airlines
05 May - 15 May	Scandinavian Airlines
07 May - 11 May	SWISS
19 May - 02 Jun	SWISS
21 May - 27 May	Finnair
22 May - 05 Jun	Icelandair
25 May - 20 Jun	SWISS

Also check the deals for one-way flights from Chicago to Prague in May.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Prague

Cheap car rent in Prague

Cheapest return flights from Chicago to Prague in May from $442

Return flights