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 $ 798 (round trip). However,there are variations depending on the departure month. Thus,it is possible to pay for your plane ticket on average between $ 668 (in february) and $ 1144 (in august),which is a saving of $ 130 or a surplus of $ 347 (compared to the average price) depending on the period you leave.
The analysis of all prices reveals that the most frequent price is between $619 to $675 and it is generally more economical to leave on a wednesday and return on a monday on a flight with 1 or more layovers.
Be careful,the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Chicago before booking your flight.
If you want to know when to book your flight at the best price,go straight to the second part of this page:When to buy your London-Chicago plane ticket.
How are these data calculated?
We have studied a sample of 61242 airfare prices from previous years for flights to Chicago from London and can thus establish precise and credible price variation trends based on different parameters. Of course,prices can vary from year to year,but the seasonal aspect of this data (recurrence of school holidays,events... from year to year) makes these statistics quite reliable.
Average price depending on the departure month
Data analysis:
By leaving in february,the price of the plane ticket will statistically be the cheapest ($ 668,saving $ 130 compared to the average price over the year which is $ 798). Conversely,august will be the most expensive ($ 1144).
Flight London-Chicago:when is the best time to go for the best price?
| Month | Good price* | Average price | Our opinion |
|---|---|---|---|
| January | $ 621 | $ 722 | good price |
| February | $ 582 | $ 668 the cheapest | very good price |
| March | $ 585 | $ 722 | good price |
| April | $ 646 | $ 845 | fair price |
| May | $ 632 | $ 720 | good price |
| June | $ 730 | $ 801 | good price |
| July | $ 791 | $ 943 | fair price |
| August | $ 980 | $ 1144 the most expensive | very high price |
| September | $ 624 | $ 689 | good price |
| October | $ 663 | $ 758 | good price |
| November | $ 584 | $ 676 | good price |
| December | $ 684 | $ 875 | 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
Data analysis:
The prices for flights from London to Chicago range from $449 to $1350. 3% of tickets were purchased at the minimum price (from $450 to $506),2% at the maximum price (from $1293 to $1350). The majority of plane tickets were purchased in the range of $675 to $731 (15% of tickets).
Cheapest airlines for the London->Chicago flight
There are 13 companies that serve London from Chicago airport:British Airways,Lufthansa,Icelandair,Finnair,American Airlines,SAS,Austrian Airlines,TAP,Iberia,Brussels Airlines,Ryanair,Aer Lingus and norse atlantic airways (uk).
Data analysis:
Of the 61242 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?
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 $ 208 compared to a direct flight).
Which day of the week to leave?
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 $50. On the other hand,departing on a sunday may cost you an additional $89.
Which day of the week to come back?
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 $43. Conversely,departing from Chicago on a friday may cost you an additional $56.
Top prices London-Chicago
| Round trip | Dates | Price | |
|---|---|---|---|
| London →Chicago | 05-09 to 14-09-2025 | $ 515 | layover flight with British Airways |
| London →Chicago | 09-09 to 13-09-2025 | $ 488 | layover flight with Icelandair |
| London →Chicago | 13-09 to 23-09-2025 | $ 487 | layover flight with Icelandair |
| London →Chicago | 16-09 to 23-09-2025 | $ 484 | layover flight with Icelandair |
| London →Chicago | 01-11 to 09-11-2025 | $ 502 | layover flight with Finnair |
| London →Chicago | 10-11 to 16-11-2025 | $ 520 | layover flight with British Airways |
| London →Chicago | 08-12 to 12-12-2025 | $ 503 | layover flight with Finnair |
| London →Chicago | 11-01 to 18-01-2026 | $ 503 | layover flight with SAS |
| London →Chicago | 10-02 to 25-02-2026 | $ 520 | layover flight with British Airways |
| London →Chicago | 09-03 to 17-03-2026 | $ 502 | layover flight with Finnair |
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?
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 745 $,which is a saving of 53 $ 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 (165 $ 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:603 $) Other interesting period(s): 2 to 3 months ($ 710),3 to 4 months ($ 656),4 to 5 months ($ 658),5 to 6 months ($ 669),7 to 8 months ($ 671),8 to 9 months ($ 720) |
| February | Best time:7 to 8 months before departure (average price:599 $) Other interesting period(s): 1 to 2 months ($ 623),2 to 3 months ($ 639),3 to 4 months ($ 636),4 to 5 months ($ 605),5 to 6 months ($ 629),6 to 7 months ($ 656),8 to 9 months ($ 646) |
| March | Best time:8 to 9 months before departure (average price:603 $) Other interesting period(s): 2 to 3 months ($ 691),4 to 5 months ($ 674),5 to 6 months ($ 629),6 to 7 months ($ 632),7 to 8 months ($ 651),9 to 10 months ($ 648) |
| April | Best time:1 to 2 months before departure (average price:771 $) Other interesting period(s): 0 to 1 month ($ 821),2 to 3 months ($ 781),3 to 4 months ($ 800),4 to 5 months ($ 839),5 to 6 months ($ 839),9 to 10 months ($ 825) |
| May | Best time:10 to 11 months before departure (average price:663 $) Other interesting period(s): 1 to 2 months ($ 720),3 to 4 months ($ 690),4 to 5 months ($ 667),5 to 6 months ($ 711),6 to 7 months ($ 710),7 to 8 months ($ 703),8 to 9 months ($ 682),9 to 10 months ($ 712) |
| June | Best time:5 to 6 months before departure (average price:754 $) Other interesting period(s): 2 to 3 months ($ 795),6 to 7 months ($ 790),7 to 8 months ($ 787),8 to 9 months ($ 771),9 to 10 months ($ 777) |
| July | Best time:1 to 2 months before departure (average price:801 $) Other interesting period(s): 2 to 3 months ($ 828),3 to 4 months ($ 875),5 to 6 months ($ 921),6 to 7 months ($ 866),7 to 8 months ($ 942) |
| August | Best time:1 to 2 months before departure (average price:1015 $) Other interesting period(s): 2 to 3 months ($ 1024),3 to 4 months ($ 1076),7 to 8 months ($ 1133),8 to 9 months ($ 1130),10 to 11 months ($ 1140) |
| September | Best time:2 to 3 months before departure (average price:629 $) Other interesting period(s): 1 to 2 months ($ 673),3 to 4 months ($ 636),4 to 5 months ($ 648),5 to 6 months ($ 654),8 to 9 months ($ 645),9 to 10 months ($ 681) |
| October | Best time:3 to 4 months before departure (average price:704 $) Other interesting period(s): 2 to 3 months ($ 758),4 to 5 months ($ 725),5 to 6 months ($ 729),8 to 9 months ($ 722),9 to 10 months ($ 719),10 to 11 months ($ 755) |
| November | Best time:4 to 5 months before departure (average price:588 $) Other interesting period(s): 1 to 2 months ($ 629),2 to 3 months ($ 649),3 to 4 months ($ 642),5 to 6 months ($ 631),6 to 7 months ($ 665),8 to 9 months ($ 673),9 to 10 months ($ 657),10 to 11 months ($ 631) |
| December | Best time:5 to 6 months before departure (average price:709 $) Other interesting period(s): 1 to 2 months ($ 829),2 to 3 months ($ 717),3 to 4 months ($ 710),4 to 5 months ($ 753),6 to 7 months ($ 773),7 to 8 months ($ 795),8 to 9 months ($ 855),9 to 10 months ($ 863) |
What day of the week should I book my flight ticket?
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 $14. Conversely,by buying it on a thursday,you may end up paying $15 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 | Our opinion | |
|---|---|---|---|
| May 2025 | $ 810 $502 to $2528 | high price | Find a flight |
| June 2025 | $ 745 $570 to $1971 | very good price | Find a flight |
| July 2025 | $ 736 $573 to $1382 | very good price | Find a flight |
| August 2025 | $ 822 $645 to $1164 | very good price | Find a flight |
| September 2025 | $ 566 $484 to $656 | very good price | Find a flight |
| October 2025 | $ 704 $574 to $889 | very good price | Find a flight |
| November 2025 | $ 594 $502 to $1038 | very good price | Find a flight |
| December 2025 | $ 794 $503 to $1206 | very good price | Find a flight |
| January 2026 | $ 700 $503 to $3987 | very good price | Find a flight |
| February 2026 | $ 577 $508 to $638 | very good price | Find a flight |
| March 2026 | $ 599 $502 to $1246 | very good price | Find a flight |
| April 2026 | $ 832 $556 to $1651 | very good price | Find a flight |
Data analysis:
Compared to the average price,june,july,august,september,october,november,december,january,february,march and april are cheaper to travel to Chicago. So it may be interesting to book now to leave during these months!