Chicago to London flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are typical right now
$732 is close to the usual $796 for Chicago → London.
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when Chicago → London drops below your price.Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | No fares found yet |
| October 2026 | $796 |
| November 2026 | $732 |
| December 2026 | $748 |
| January 2027 | $1,103 |
| February 2027 | No fares found yet |
| March 2027 | $814 |
| April 2027 | $485 (cheapest month) |
| May 2027 | $810 |
Cheapest dates in the next 4 months
Round trip, per person-
Nov 18 – 22 4 nights · leave Wed$732 −8% vs usual$732 −8% vs usual Book
TAP Air Portugal 1 stop · 10h 55m -
Dec 1 – 4 3 nights · leave Tue$748 −6% vs usual$748 −6% vs usual Book
Icelandair 3 stops · 11h 55m -
Oct 22 – 26 4 nights · leave Thu$796$796 Book
Turkish Airlines 1 stop · 14h 20m -
Dec 19 – Jan 9, 2027 21 nights · leave Sat$811$811 Book
Air Serbia 2 stops · 14h 00m -
Nov 1 – 4 3 nights · leave Sun$883 +11% vs usual$883 +11% vs usual Book
SAS Scandinavian 2 stops · 10h 10m -
Dec 20 – Jan 10, 2027 21 nights · leave Sun$925 +16% vs usual$925 +16% vs usual Book
Icelandair 1 stop · 9h 15m
-
Oct 10 – 17 7 nights · leave Sat$958 +20% vs usual$958 +20% vs usual Book
Porter Airlines Canada 3 stops · 10h 35m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in London
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Airport transfer to London
Fixed prices from LHR on KiwitaxiTo see transfer prices here, turn on partner content in .
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Plan the rest of your trip
London · Nov 18 – 22Travel insurance · EKTA Airport transfer · Kiwitaxi
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Good to know
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Chicago to London: questions
How much is a flight from Chicago to London?
The cheapest round trip we have found right now is $732, leaving November 18 and returning November 22. The usual price on this route is about $796, so this fare is 8% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from Chicago to London?
April 2027, with round trips from $485. The most expensive month in our data is January (from $1,103). Based on the 7 months ahead we have prices for.
About this route
We track round-trip economy fares from Chicago (United States) to London (United Kingdom) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $732, departing November 18 and returning November 22, about 8% below the usual $796. Right now we're following 7 upcoming date combinations on this route. The cheapest month to fly in our data is April, from $485. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.