Best time to go: what is the RIGHT price for a round-trip flight to London (from: Chicago)

The average price to go to London from Chicago airport is $ 832 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 669 (in february) and $ 1145 (in july), which is a saving of $ 163 or a surplus of $ 314 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $591 to $645 and it is generally more economical to leave on a wednesday and return on a tuesday on a flight with 1 or more layovers.

Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to London before booking your flight.

If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Chicago-London plane ticket.

How are these data calculated?

We have studied a sample of 70504 airfare prices from previous years for flights to London from Chicago and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.

Average price depending on the departure month

Data analysis:

By leaving in february, the price of the plane ticket will statistically be the cheapest ($ 669, saving $ 163 compared to the average price over the year which is $ 832). Conversely, july will be the most expensive ($ 1145).

Flight Chicago-London: when is the best time to go for the best price?

Month Good price* Average price Our opinion
January$ 570 $ 694 good price
February$ 566 $ 669 very good price
March$ 588 $ 751 good price
April$ 601 $ 721 good price
May$ 601 $ 748 good price
June$ 885 $ 1108 high price
July$ 957 $ 1145 very high price
August$ 823 $ 1000 high price
September$ 647 $ 781 good price
October$ 582 $ 676 good price
November$ 608 $ 727 good price
December$ 722 $ 948 fair price

*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!

Price breakdown to travel from Chicago to London

Data analysis:

The prices for flights from Chicago to London range from $376 to $1396. 1% of tickets were purchased at the minimum price (from $376 to $430), 2% at the maximum price (from $1343 to $1396). The majority of plane tickets were purchased in the range of $591 to $645 (17% of tickets).

Cheapest airlines for the Chicago->London flight

There are 13 companies that serve Chicago from London airport: Iberia, British Airways, Finnair, Icelandair, TAP, Lufthansa, American Airlines, United, SAS, Aer Lingus, Austrian Airlines, Air Canada and Spirit Airlines.

Data analysis:

Of the 70504 flights analyzed in previous years, Iberia was the airline that offered the best fare most often in the flight ticket search results (23% of the time) on the Chicago->London route.

Direct flight or flight with layover?

Data analysis:

To get the best price for the Chicago-London flight, you should take a flight with one or more layovers (you will save an average of $ 256 compared to a direct flight).

Which day of the week to leave?

Data analysis:

Statistically, Chicago-London flights departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday as your departure date, you can save an average of $64. On the other hand, departing on a saturday may cost you an additional $51.

Which day of the week to come back?

Data analysis:

Statistically, return flights from London to Chicago departing on a tuesday are cheaper than on other days of the week. By choosing a tuesday for your return date, you will save an average of $63. Conversely, departing from London on a saturday may cost you an additional $91.


Top prices Chicago-London

Round tripDatesPrice
Chicago → London19-05 to 29-05-2024$ 632 
Chicago → London21-05 to 31-05-2024$ 615 
Chicago → London23-08 to 30-08-2024$ 624 
Chicago → London22-09 to 29-09-2024$ 584 
Chicago → London02-10 to 13-10-2024$ 621 
Chicago → London03-10 to 17-10-2024$ 573 
Chicago → London01-01 to 15-01-2025$ 631 
Chicago → London06-01 to 17-01-2025$ 594 
Chicago → London05-02 to 20-02-2025$ 592 
Chicago → London05-03 to 19-03-2025$ 631 


When to book your flight Chicago - London to get the cheapest price?

Statistically, you will make the biggest savings by buying your plane ticket between 1 to 2 months in advance. However, you may end up paying a high price if you book between 0 to 1 month in advance.

Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a Chicago-London flight, it is recommended to book your ticket on a saturday.

How far in advance should I buy my flight?

Data analysis:

To get the cheapest flight ticket from Chicago to London, it is recommended to buy it 1 to 2 months before departure (it is then on average 808 $, which is a saving of 24 $ compared to the overall average price). On the other hand, if you buy your ticket 0 to 1 month in advance, you will pay the full price (127 $ more than the average price).

Depending on the departure month

The best time to buy your Chicago to London flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.

Departure on... How far in advance should I book?
January

Best time: 1 to 2 months before departure (average price: 565 $)

Other interesting period(s): 2 to 3 months ($ 631), 4 to 5 months ($ 673), 5 to 6 months ($ 662), 6 to 7 months ($ 693), 7 to 8 months ($ 684), 10 to 11 months ($ 649), 11 to 12 months ($ 689)

February

Best time: 2 to 3 months before departure (average price: 590 $)

Other interesting period(s): 1 to 2 months ($ 661), 3 to 4 months ($ 639), 5 to 6 months ($ 654), 6 to 7 months ($ 640), 7 to 8 months ($ 645), 8 to 9 months ($ 658)

March

Best time: 3 to 4 months before departure (average price: 657 $)

Other interesting period(s): 1 to 2 months ($ 747), 2 to 3 months ($ 709), 4 to 5 months ($ 674), 6 to 7 months ($ 712), 7 to 8 months ($ 715), 8 to 9 months ($ 669), 9 to 10 months ($ 697)

April

Best time: 4 to 5 months before departure (average price: 632 $)

Other interesting period(s): 2 to 3 months ($ 712), 3 to 4 months ($ 704), 5 to 6 months ($ 705), 8 to 9 months ($ 697), 9 to 10 months ($ 716)

May

Best time: 5 to 6 months before departure (average price: 600 $)

Other interesting period(s): 4 to 5 months ($ 740), 6 to 7 months ($ 613), 8 to 9 months ($ 742), 10 to 11 months ($ 722)

June

Best time: 6 to 7 months before departure (average price: 917 $)

Other interesting period(s): 7 to 8 months ($ 958), 8 to 9 months ($ 1012), 9 to 10 months ($ 970), 10 to 11 months ($ 969)

July

Best time: 7 to 8 months before departure (average price: 963 $)

Other interesting period(s): 6 to 7 months ($ 1133), 8 to 9 months ($ 1013), 9 to 10 months ($ 1090), 10 to 11 months ($ 1075), 11 to 12 months ($ 1108)

August

Best time: 1 to 2 months before departure (average price: 871 $)

Other interesting period(s): 2 to 3 months ($ 992), 3 to 4 months ($ 928), 4 to 5 months ($ 931), 8 to 9 months ($ 955), 9 to 10 months ($ 956), 10 to 11 months ($ 928), 11 to 12 months ($ 958)

September

Best time: 10 to 11 months before departure (average price: 698 $)

Other interesting period(s): 1 to 2 months ($ 769), 5 to 6 months ($ 774), 8 to 9 months ($ 761), 9 to 10 months ($ 723), 11 to 12 months ($ 738)

October

Best time: 11 to 12 months before departure (average price: 637 $)

Other interesting period(s): 1 to 2 months ($ 662), 2 to 3 months ($ 663), 3 to 4 months ($ 676), 4 to 5 months ($ 676), 7 to 8 months ($ 644), 10 to 11 months ($ 643)

November

Best time: 4 to 5 months before departure (average price: 672 $)

Other interesting period(s): 1 to 2 months ($ 724), 2 to 3 months ($ 705), 3 to 4 months ($ 687), 5 to 6 months ($ 693), 6 to 7 months ($ 722), 8 to 9 months ($ 688), 9 to 10 months ($ 709)

December

Best time: 9 to 10 months before departure (average price: 860 $)

Other interesting period(s): 1 to 2 months ($ 879), 2 to 3 months ($ 877), 3 to 4 months ($ 891), 4 to 5 months ($ 873), 5 to 6 months ($ 865), 6 to 7 months ($ 864), 7 to 8 months ($ 881), 8 to 9 months ($ 925)

What day of the week should I book my flight ticket?

Data analysis:

Statistically, saturday is the day when plane tickets for Chicago->London are the cheapest. So, by buying your plane ticket on a saturday, you will save $8. Conversely, by buying it on a friday, you may end up paying $8 more.



Chicago to London: flight price when booking today

Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.

Month Current price
May 2024$ 760
$615 to $1144
Find a flight
June 2024$ 849
$638 to $1145
Find a flight
July 2024$ 856
$718 to $1282
Find a flight
August 2024$ 771
$624 to $1059
Find a flight
September 2024$ 697
$531 to $938
Find a flight
October 2024$ 668
$573 to $730
Find a flight
November 2024$ 929
$602 to $2834
Find a flight
December 2024$ 1205
$632 to $3097
Find a flight
January 2025$ 810
$594 to $2001
Find a flight
February 2025$ 1100
$592 to $2001
Find a flight
March 2025$ 1246
$631 to $3375
Find a flight
April 2025$ 958
$667 to $2949
Find a flight

Data analysis:

Compared to the average price, june, july, august, september and october are cheaper to travel to London. So it may be interesting to book now to leave during these months!



Change currency