This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $423 fare is the cheapest current round-trip from Chicago (MDW) to GDL on Y4 flight Y41893, departing 2026-10-01 at 19:30 with return on 2026-10-26.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.