Flights From London To Chicago — from €561
Compare cheap flights from London 🇬🇧 to Chicago 🇺🇸. Real prices, daily refreshed from Aviasales.
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Paris → Chicago Amsterdam → Chicago Brussels → Chicago Frankfurt → Chicago Munich → Chicago Berlin → Chicago Hamburg → Chicago Zurich → Chicago Geneva → Chicago Vienna → Chicago Dublin → Chicago Madrid → Chicago Barcelona → Chicago Lisbon → Chicago Porto → Chicago Rome → Chicago Milan → Chicago Naples → Chicago Athens → Chicago Copenhagen → Chicago Stockholm → Chicago Oslo → Chicago Helsinki → Chicago Reykjavik → Chicago Warsaw → Chicago Krakow → Chicago Prague → Chicago Budapest → Chicago Bucharest → Chicago
Updated 2026-04-14 · Real-time travel data · Affiliate disclosure: this page contains affiliate links — we earn a commission if you book.
The London to Chicago flight takes approximately 7–10 hours nonstop, 9–14 hours via connections. Total journey time including check-in and airport transfers adds 2–3 hours. Filter search results by total journey time, not just fare, to find the most efficient routing.
January, february, and november typically offer the lowest fares, often 25–45% below peak-season prices. Shoulder season — April through May and September through October — balances value with excellent travel conditions. Avoid school holiday windows, when demand drives fares sharply higher.
Book 6–8 weeks ahead for the best price and seat availability. Fares typically rise sharply inside 14 days of departure. Searching on Tuesday or Wednesday mornings returns 10–15% lower fares than weekend searches on average.
Direct nonstop service may be limited on this route. Most itineraries connect through a major hub. Check current airline schedules as nonstop routes are added and removed seasonally.
Set a fare alert for the route and search ±3 days around your target travel dates. Frankfurt, Amsterdam, and Paris CDG provide the most reliable connections for this route. Self-connecting through a separate booking can beat bundled itinerary prices by 20–30%, though this carries risk if your first segment is delayed.