Chicago To London Flights — from €494
Compare cheap flights from Chicago 🇺🇸 to London 🇬🇧. Real prices, daily refreshed from Aviasales.
Cheapest month: 2026-10 at €494. Highest: €855. Tap a bar to jump to that month's fares ↓
October is the sweet spot on this route. Summer tourists have left, locals are back at work, and fares dip 23% below the yearly average. August is the month to avoid (33% above average).
Live cached prices from Aviasales. Pick a month, compare, book in one click.
| Currency | GBP (£) |
| Language | English |
| Power plug | Type G |
| Tipping | 10-15% |
| Emergency | 999 |
Other ways travelers describe this route — we cover all of them on this page:
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🎧 Self-Guided Audio Tours of London
🎫 Skip-the-Line Tickets
🚕 Airport Transfer
🛡️ Travel Insurance from $4/day
📱 Get an eSIM (code FALLY20)
✈️ Flight Delayed? Claim up to €600
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Paris → London Amsterdam → London Brussels → London Frankfurt → London Munich → London Berlin → London Hamburg → London Zurich → London Geneva → London Vienna → London Dublin → London Madrid → London Barcelona → London Lisbon → London Porto → London Rome → London Milan → London Naples → London Athens → London Copenhagen → London Stockholm → London Oslo → London Helsinki → London Reykjavik → London Warsaw → London Krakow → London Prague → London Budapest → London Bucharest → London Sofia → London
Updated 2026-07-28 · Real-time travel data · Affiliate disclosure: this page contains affiliate links — we earn a commission if you book.