Statistics on London-Chicago flights: what is the right price and when to buy your plane ticket?

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

The average price to go to Chicago from London airport is $ 780 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 654 (in february) and $ 1122 (in august), which is a saving of $ 126 or a surplus of $ 343 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $608 to $664 and it is generally more economical to leave on a wednesday and return on a monday 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 Chicago 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 London-Chicago plane ticket.

How are these data calculated?

We have studied a sample of 60000 airfare prices from previous years for flights to Chicago from London 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

Created with Highcharts 8.2.2 $700 $700 $654 $654 $688 $688 $827 $827 $704 $704 $787 $787 $931 $931 $1122 $1122 $681 $681 $748 $748 $661 $661 $853 $853Average price of round-trip airfare in USD according to the departure monthjan.feb.mar.apr.mayjun.jul.aug.sep.oct.nov.dec.500600700800900100011001200

Data analysis:

By leaving in february, the price of the plane ticket will statistically be the cheapest ($ 654, saving $ 126 compared to the average price over the year which is $ 780). Conversely, august will be the most expensive ($ 1122).

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

Month Good price* Average price Our opinion
January$ 604 $ 700 good price
February$ 570 $ 654 very good price
March$ 574 $ 688 good price
April$ 630 $ 827 fair price
May$ 619 $ 704 good price
June$ 718 $ 787 good price
July$ 781 $ 931 fair price
August$ 962 $ 1122 very high price
September$ 616 $ 681 good price
October$ 655 $ 748 good price
November$ 576 $ 661 good price
December$ 669 $ 853 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 London to Chicago

Created with Highcharts 8.2.23%3%8%8%13%13%16%16%14%14%11%11%8%8%6%6%3%3%2%2%2%2%2%2%2%2%1%1%2%2%2%2%Percentage of plane tickets found at this price$443 to $498$498 to $553$553 to $608$608 to $664$664 to $719$719 to $774$774 to $829$829 to $885$885 to $940$940 to $995$995 to $1050$1050 to $1106$1106 to $1161$1161 to $1216$1216 to $1271$1271 to $132705101520

Data analysis:

The prices for flights from London to Chicago range from $442 to $1327. 3% of tickets were purchased at the minimum price (from $443 to $498), 2% at the maximum price (from $1271 to $1327). The majority of plane tickets were purchased in the range of $608 to $664 (16% of tickets).

Cheapest airlines for the London->Chicago flight

There are 13 companies that serve London from Chicago airport: British Airways, Lufthansa, Finnair, Icelandair, American Airlines, SAS, Austrian Airlines, TAP, Iberia, Brussels Airlines, Aer Lingus, Ryanair and norse atlantic airways (uk).

Created with Highcharts 8.2.2British Airways: 44 %British Airways: 44 %Lufthansa: 10 %Lufthansa: 10 %Finnair: 8 %Finnair: 8 %Icelandair: 8 %Icelandair: 8 %American Airlines: 5 %American Airlines: 5 %SAS: 4 %SAS: 4 %Austrian Airlines: 3 %Austrian Airlines: 3 %TAP: 3 %TAP: 3 %Iberia: 2 %Iberia: 2 %Brussels Airlines: 2 %Brussels Airlines: 2 %

Data analysis:

Of the 60000 flights analyzed in previous years, British Airways was the airline that offered the best fare most often in the flight ticket search results (44% of the time) on the London->Chicago route.

Direct flight or flight with layover?

Created with Highcharts 8.2.2 $832 $832 $650 $650Average ticket price: direct flight or flight with layover(s)Direct flightFlight with layover550600650700750800850

Data analysis:

To get the best price for the London-Chicago flight, you should take a flight with one or more layovers (you will save an average of $ 202 compared to a direct flight).

Which day of the week to leave?

Created with Highcharts 8.2.2 $ +92 $ +92 $ -6 $ -6 $ -25 $ -25 $ -53 $ -53 $ -7 $ -7 $ +7 $ +7 $ +19 $ +19Average airfare price according to the departure daya sundaya mondaya tuesdaya wednesdaya thursdaya fridaya saturday-75-50-250255075100

Data analysis:

Statistically, London-Chicago 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 $53. On the other hand, departing on a sunday may cost you an additional $92.

Which day of the week to come back?

Created with Highcharts 8.2.2 $ -5 $ -5 $ -46 $ -46 $ -36 $ -36 $ -39 $ -39 $ +23 $ +23 $ +58 $ +58 $ +50 $ +50Average airfare price based on the return daya sundaya mondaya tuesdaya wednesdaya thursdaya fridaya saturday-75-50-250255075

Data analysis:

Statistically, return flights from Chicago to London departing on a monday are cheaper than on other days of the week. By choosing a monday for your return date, you will save an average of $46. Conversely, departing from Chicago on a friday may cost you an additional $58.

Top prices London-Chicago

Round tripDatesPrice
London → Chicago02-09 to 16-09-2025$ 451 
London → Chicago03-09 to 17-09-2025$ 438 
London → Chicago17-09 to 23-09-2025$ 440 
London → Chicago09-10 to 20-10-2025$ 487 
London → Chicago12-10 to 16-10-2025$ 489 
London → Chicago03-11 to 09-11-2025$ 494 
London → Chicago15-11 to 29-11-2025$ 494 
London → Chicago20-11 to 30-11-2025$ 496 
London → Chicago21-11 to 29-11-2025$ 493 
London → Chicago04-12 to 11-12-2025$ 492 

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

Statistically, you will make the biggest savings by buying your plane ticket between 2 to 3 months in advance. However, you may end up paying a high price if you book between 11 to 12 months 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 London-Chicago flight, it is recommended to book your ticket on a saturday.

How far in advance should I buy my flight?

Created with Highcharts 8.2.2 $856 $856 $731 $731 $725 $725 $742 $742 $749 $749 $778 $778 $776 $776 $790 $790 $766 $766 $776 $776 $807 $807 $936 $936Average airfare price based on the number of months between booking and flight0 to 1 month1 to 2 months2 to 3 months3 to 4 months4 to 5 months5 to 6 months6 to 7 months7 to 8 months8 to 9 months9 to 10 months10 to 11 months11 to 12 months6006507007508008509009501000

Data analysis:

To get the cheapest flight ticket from London to Chicago, it is recommended to buy it 2 to 3 months before departure (it is then on average 725 $, which is a saving of 55 $ compared to the overall average price). On the other hand, if you buy your ticket 11 to 12 months in advance, you will pay the full price (156 $ more than the average price).

Depending on the departure month

The best time to buy your London to Chicago 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: 6 to 7 months before departure (average price: 593 $)

Other interesting period(s): 2 to 3 months ($ 686), 3 to 4 months ($ 654), 4 to 5 months ($ 647), 5 to 6 months ($ 658), 7 to 8 months ($ 659)
February

Best time: 7 to 8 months before departure (average price: 588 $)

Other interesting period(s): 1 to 2 months ($ 601), 2 to 3 months ($ 622), 3 to 4 months ($ 636), 4 to 5 months ($ 629), 5 to 6 months ($ 618), 6 to 7 months ($ 645), 8 to 9 months ($ 635)
March

Best time: 8 to 9 months before departure (average price: 593 $)

Other interesting period(s): 2 to 3 months ($ 661), 4 to 5 months ($ 654), 5 to 6 months ($ 633), 6 to 7 months ($ 622), 7 to 8 months ($ 640), 9 to 10 months ($ 637)
April

Best time: 1 to 2 months before departure (average price: 760 $)

Other interesting period(s): 0 to 1 month ($ 777), 2 to 3 months ($ 767), 3 to 4 months ($ 774), 4 to 5 months ($ 806), 9 to 10 months ($ 811)
May

Best time: 4 to 5 months before departure (average price: 638 $)

Other interesting period(s): 3 to 4 months ($ 678), 5 to 6 months ($ 698), 6 to 7 months ($ 698), 7 to 8 months ($ 691), 8 to 9 months ($ 670), 9 to 10 months ($ 700), 10 to 11 months ($ 651)
June

Best time: 5 to 6 months before departure (average price: 730 $)

Other interesting period(s): 6 to 7 months ($ 769), 7 to 8 months ($ 774), 8 to 9 months ($ 757), 9 to 10 months ($ 764)
July

Best time: 1 to 2 months before departure (average price: 787 $)

Other interesting period(s): 2 to 3 months ($ 829), 3 to 4 months ($ 903), 4 to 5 months ($ 930), 5 to 6 months ($ 906), 6 to 7 months ($ 830), 7 to 8 months ($ 925)
August

Best time: 1 to 2 months before departure (average price: 997 $)

Other interesting period(s): 2 to 3 months ($ 1006), 3 to 4 months ($ 1068), 7 to 8 months ($ 1080), 8 to 9 months ($ 1101), 10 to 11 months ($ 1121)
September

Best time: 2 to 3 months before departure (average price: 618 $)

Other interesting period(s): 1 to 2 months ($ 661), 3 to 4 months ($ 625), 4 to 5 months ($ 643), 7 to 8 months ($ 678), 8 to 9 months ($ 626), 9 to 10 months ($ 665)
October

Best time: 3 to 4 months before departure (average price: 692 $)

Other interesting period(s): 2 to 3 months ($ 745), 4 to 5 months ($ 712), 5 to 6 months ($ 714), 8 to 9 months ($ 710), 9 to 10 months ($ 697), 10 to 11 months ($ 740)
November

Best time: 4 to 5 months before departure (average price: 578 $)

Other interesting period(s): 1 to 2 months ($ 619), 2 to 3 months ($ 638), 3 to 4 months ($ 631), 5 to 6 months ($ 620), 6 to 7 months ($ 652), 9 to 10 months ($ 646), 10 to 11 months ($ 617)
December

Best time: 5 to 6 months before departure (average price: 697 $)

Other interesting period(s): 1 to 2 months ($ 767), 2 to 3 months ($ 718), 3 to 4 months ($ 698), 4 to 5 months ($ 740), 6 to 7 months ($ 760), 7 to 8 months ($ 791), 8 to 9 months ($ 849), 9 to 10 months ($ 835)

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

Created with Highcharts 8.2.2 $ -1 $ -1 $ -4 $ -4 $ -3 $ -3 $ +5 $ +5 $ +17 $ +17 $ +3 $ +3 $ -11 $ -11Average price of plane ticket according to the booking daysundaymondaytuesdaywednesdaythursdayfridaysaturday-15-10-505101520

Data analysis:

Statistically, saturday is the day when plane tickets for London->Chicago are the cheapest. So, by buying your plane ticket on a saturday, you will save $11. Conversely, by buying it on a thursday, you may end up paying $17 more.

London to Chicago: 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
April 2025$ 762
$584 to $1075		Find a flight
May 2025$ 626
$500 to $917		Find a flight
June 2025$ 719
$511 to $1299		Find a flight
July 2025$ 781
$541 to $1886		Find a flight
August 2025$ 1198
$723 to $3751		Find a flight
September 2025$ 577
$438 to $740		Find a flight
October 2025$ 1055
$487 to $3200		Find a flight
November 2025$ 637
$493 to $1024		Find a flight
December 2025$ 838
$492 to $1973		Find a flight
January 2026$ 759
$633 to $1428		Find a flight
February 2026$ 691
$532 to $996		Find a flight
March 2026$ 1113
$554 to $3353		Find a flight

Data analysis:

Compared to the average price, april, may, june, july, september, november and december are cheaper to travel to Chicago. So it may be interesting to book now to leave during these months!

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