Cheap flights from London to Chicago
✈️ Fares in September 2026 start from €361 — found by real travellers in the last 48 hours.
Compare all London → Chicago flights
Cheapest day to fly in September 2026
| Date | From | Stops | |
|---|---|---|---|
| Tue 1 Sept | €388 | 1 stop | Book → |
| Wed 2 Sept | €403 | 1 stop | Book → |
| Sun 6 Sept | €467 | 1 stop | Book → |
| Mon 7 Sept | €470 | 2 stops | Book → |
| Wed 9 Sept | €456 | 2 stops | Book → |
| Thu 10 Sept | €425 | 2 stops | Book → |
| Fri 11 Sept | €490 | 1 stop | Book → |
| Sat 12 Sept | €509 | 1 stop | Book → |
| Mon 14 Sept | €470 | 1 stop | Book → |
| Tue 15 Sept | €379 | 1 stop | Book → |
| Wed 16 Sept | €361 | 2 stops | Book → |
| Sun 20 Sept | €464 | 1 stop | Book → |
| Thu 24 Sept | €445 | 2 stops | Book → |
| Fri 25 Sept | €433 | 2 stops | Book → |
Popular flights from London
London to Paris · London to Rome · London to Milan · London to Berlin · London to Munich · London to Frankfurt · London to Amsterdam · London to Madrid · London to Barcelona · London to Lisbon · London to Vienna · London to Zurich
Flights to Chicago from other cities
Frequently asked questions
How much is a flight from London to Chicago?
Cached market fares for September 2026 start from €361 one-way. Prices are found by real travellers in the last 48 hours and confirmed at checkout.
Which airlines fly from London to Chicago?
Recent fares on this route are offered by FR, EI, Z0 and others. ScanFlyGo compares 1,200+ airlines and agencies.
What is the cheapest day to fly from London to Chicago?
ScanFlyGo shows the cheapest fare for each day of September 2026 — check the price table above to pick the cheapest date, then book directly with the provider.
Is London to Chicago a direct flight?
Both direct and connecting options may be available. Use the ScanFlyGo search to filter by stops, airline and time.
Can I track my London to Chicago flight live?
Yes. ScanFlyGo has a built-in live flight tracker with a real-time map, so you can follow your aircraft on the day by flight number.
Does ScanFlyGo charge booking or service fees?
No. ScanFlyGo is a free flight metasearch — we compare fares and send you to the airline or agency to book. The price is confirmed at their checkout with no extra fee from us.
About London to Chicago flights
ScanFlyGo compares London (All airports, LON) to Chicago (O'Hare International Airport, ORD) fares across 1,200+ airlines and agencies via the Aviasales network. The cheapest fare found for September 2026 is €361. Prices shown are the lowest cached market fares; the final price is always confirmed at the partner's checkout. You can also search the return route Chicago → London, or use the full live search for exact dates, stops, airline filters and a live map to track your flight on the day.
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