The cheapest round-trip from Barcelona to Chicago is about 589 EUR, usually in August 2026; June 2026 is priciest, so booking the low month saves around 60 EUR (~9%). Typical fare ~614 EUR, from 60 priced fares. Flightmussy live data, updated 2026-06-13.
Cheap flights from Barcelona (BCN/GRO/REU) to Chicago (ORD/MDW). Free, no signup, no ads, no tracking. Compare every airline across 12 months of fares on one heatmap — including low-cost carriers Google Flights often deprioritises.
Cheapest round-trip seen: 589 EUR, usually around August 2026. Typical fare ~614 EUR. Across the year prices range roughly 589–649 EUR — about 9% cheaper in the low season than the peak (June 2026). Carriers on this route include KLM, Iberia, American, British Airways.
Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-13. Prices change constantly — search live for current fares.
The lowest round-trip fare we found for each month over the coming year — low season versus peak at a glance. August 2026 is cheapest; June 2026 is priciest.
| Jun 2026 | 649 EUR | |
|---|---|---|
| Jul 2026 | 614 EUR | |
| Aug 2026 | 589 EUR |
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