Flight price alerts: Chicago → London
Sample round trips on this route start around EUR 710; August 2026 is often the cheapest month in our next-3-month window. FlexTrip Alerts is a free email service — set flexible travel dates and a max price, and we notify you when a round trip fits. We check fares about four times per day; we do not sell tickets.
Set a free tracker with flexible dates and your max price. We email you only when a round trip fits.
Sample fares from EUR 710. Cheapest month in our next-3-month sample: August 2026.
Set an alert and we email you when a round trip drops under your limit.
Set a price alertRound trips on this route
Cheapest-seen sample fares (next 3 months) — confirm the final price on the booking site when you click through.
Last updated .
- See deal
- Round trip · 19 nights
- Tue 25 Aug · 19:25
- Return Sun 13 Sept · 08:30
EUR 710
- See deal
- Round trip · 2 nights
- Thu 13 Aug · 09:35
- Return Sat 15 Aug · 08:15
EUR 1062
| Depart | Return | Stay | Price | Book |
|---|---|---|---|---|
| Tue 25 Aug · 19:25 | Sun 13 Sept · 08:30 | 19 nights | EUR 710 | See deal |
| Thu 13 Aug · 09:35 | Sat 15 Aug · 08:15 | 2 nights | EUR 1062 | See deal |
Frequently asked questions
- How do I get email alerts when Chicago to London flights drop in price?
- Create a free FlexTrip Alerts tracker for Chicago O'Hare International Airport (ORD) to London (All Airports) (LON). Choose your flexible departure window, stay length, and maximum price — we email you when a round trip fits.
- Does FlexTrip Alerts book flights from Chicago to London?
- No — we do not sell tickets. FlexTrip Alerts watches prices and emails you when a fare matches your plan. You book on the airline or travel site you prefer when you receive an alert.
- Can I set flexible travel dates for Chicago to London alerts?
- Yes. Pick a departure window (not one fixed day) and how many nights you can stay. We match round trips that fit your window, stay length, and max price — then email you when one qualifies.
- How often does FlexTrip Alerts check Chicago to London fares?
- We scan aggregated fares on a schedule — about four times per day (every ~6 hours, UTC). You can also trigger an on-demand check from your dashboard, with a short cooldown between manual refreshes.
- What is the cheapest month to fly from Chicago to London?
- Based on recent fare samples on this page, August 2026 is currently the cheapest month to fly from Chicago to London, with round trips from about EUR 710. Prices change — set an alert to catch the next drop.
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