Statistics on Chicago-Lisbon 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 Lisbon (from: Chicago)
The average price to go to Lisbon from Chicago airport is $ 834 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 606 (in february) and $ 1175 (in june), which is a saving of $ 228 or a surplus of $ 342 (compared to the average price) depending on the period you leave.
The analysis of all prices reveals that the most frequent price is between $605 to $660 and it is generally more economical to leave on a tuesday and return on a tuesday on a flight with 1 or more layovers.
Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Lisbon before booking your flight.
If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Chicago-Lisbon plane ticket.
How are these data calculated?
We have studied a sample of 60143 airfare prices from previous years for flights to Lisbon from Chicago and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.
Average price depending on the departure month
Data analysis:
By leaving in february, the price of the plane ticket will statistically be the cheapest ($ 606, saving $ 228 compared to the average price over the year which is $ 834). Conversely, june will be the most expensive ($ 1175).
Flight Chicago-Lisbon: when is the best time to go for the best price?
| Month | Good price* | Average price | Our opinion |
|---|---|---|---|
| January | $ 570 | $ 636 | good price |
| February | $ 569 | $ 606 the cheapest | very good price |
| March | $ 627 | $ 755 | good price |
| April | $ 643 | $ 697 | good price |
| May | $ 757 | $ 926 | fair price |
| June | $ 1007 | $ 1175 the most expensive | very high price |
| July | $ 960 | $ 1139 | high price |
| August | $ 842 | $ 931 | fair price |
| September | $ 724 | $ 885 | fair price |
| October | $ 647 | $ 738 | good price |
| November | $ 609 | $ 663 | good price |
| December | $ 642 | $ 849 | 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 Lisbon
Data analysis:
The prices for flights from Chicago to Lisbon range from $440 to $1374. 2% of tickets were purchased at the minimum price (from $440 to $495), 1% at the maximum price (from $1319 to $1374). The majority of plane tickets were purchased in the range of $660 to $715 (15% of tickets).
Cheapest airlines for the Chicago->Lisbon flight
There are 17 companies that serve Chicago from Lisbon airport: TAP, Air Canada, British Airways, Aer Lingus, Turkish Airlines, Iberia, Finnair, Spirit Airlines, United, Swiss, Air France, SAS, Icelandair, Lufthansa, American Airlines, KLM and Delta.
Data analysis:
Of the 60143 flights analyzed in previous years, TAP was the airline that offered the best fare most often in the flight ticket search results (40% of the time) on the Chicago->Lisbon route.
Direct flight or flight with layover?
Data analysis:
To get the best price for the Chicago-Lisbon flight, you should take a flight with one or more layovers (you will save an average of $ 210 compared to a direct flight).
Which day of the week to leave?
Data analysis:
Statistically, Chicago-Lisbon flights departing on a tuesday are cheaper than on other days of the week. By choosing a tuesday as your departure date, you can save an average of $95. On the other hand, departing on a friday may cost you an additional $53.
Which day of the week to come back?
Data analysis:
Statistically, return flights from Lisbon 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 $98. Conversely, departing from Lisbon on a sunday may cost you an additional $57.
Top prices Chicago-Lisbon
| Round trip | Dates | Price | |
|---|---|---|---|
| Chicago → Lisbon | 06-11 to 11-11-2025 | $ 529 | layover flight with Finnair |
| Chicago → Lisbon | 10-11 to 20-11-2025 | $ 526 | layover flight with Finnair |
| Chicago → Lisbon | 09-12 to 16-12-2025 | $ 535 | layover flight with United |
| Chicago → Lisbon | 03-02 to 10-02-2026 | $ 527 | layover flight with Finnair |
| Chicago → Lisbon | 02-03 to 10-03-2026 | $ 527 | layover flight with Finnair |
| Chicago → Lisbon | 03-03 to 11-03-2026 | $ 527 | layover flight with Finnair |
| Chicago → Lisbon | 09-03 to 16-03-2026 | $ 516 | layover flight with British Airways |
| Chicago → Lisbon | 10-03 to 17-03-2026 | $ 476 | layover flight with Finnair |
| Chicago → Lisbon | 11-03 to 18-03-2026 | $ 476 | layover flight with Finnair |
| Chicago → Lisbon | 15-03 to 31-03-2026 | $ 517 | layover flight with Swiss |
When to book your flight Chicago - Lisbon to get the cheapest price?
Statistically, you will make the biggest savings by buying your plane ticket between 4 to 5 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-Lisbon flight, it is recommended to book your ticket on a sunday.
How far in advance should I buy my flight?
Data analysis:
To get the cheapest flight ticket from Chicago to Lisbon, it is recommended to buy it 4 to 5 months before departure (it is then on average 794 $, which is a saving of 40 $ 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 (184 $ more than the average price).
Depending on the departure month
The best time to buy your Chicago to Lisbon 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: 2 to 3 months before departure (average price: 582 $) Other interesting period(s): 1 to 2 months ($ 630), 3 to 4 months ($ 624), 4 to 5 months ($ 582), 5 to 6 months ($ 609), 6 to 7 months ($ 608), 7 to 8 months ($ 628) |
| February | Best time: 3 to 4 months before departure (average price: 550 $) Other interesting period(s): 2 to 3 months ($ 565), 4 to 5 months ($ 584), 5 to 6 months ($ 581) |
| March | Best time: 7 to 8 months before departure (average price: 683 $) Other interesting period(s): 1 to 2 months ($ 747), 2 to 3 months ($ 744), 3 to 4 months ($ 738), 4 to 5 months ($ 720), 5 to 6 months ($ 753), 6 to 7 months ($ 749), 8 to 9 months ($ 685), 9 to 10 months ($ 687), 10 to 11 months ($ 727) |
| April | Best time: 4 to 5 months before departure (average price: 664 $) Other interesting period(s): 2 to 3 months ($ 694), 3 to 4 months ($ 687), 5 to 6 months ($ 666), 6 to 7 months ($ 679), 7 to 8 months ($ 676), 8 to 9 months ($ 671), 9 to 10 months ($ 677) |
| May | Best time: 6 to 7 months before departure (average price: 807 $) Other interesting period(s): 2 to 3 months ($ 921), 3 to 4 months ($ 860), 4 to 5 months ($ 869), 5 to 6 months ($ 838), 7 to 8 months ($ 845), 8 to 9 months ($ 890), 9 to 10 months ($ 910), 10 to 11 months ($ 882) |
| June | Best time: 10 to 11 months before departure (average price: 1069 $) Other interesting period(s): 3 to 4 months ($ 1150), 4 to 5 months ($ 1075), 5 to 6 months ($ 1108), 6 to 7 months ($ 1076), 7 to 8 months ($ 1094), 8 to 9 months ($ 1106), 9 to 10 months ($ 1088), 11 to 12 months ($ 1110) |
| July | Best time: 7 to 8 months before departure (average price: 997 $) Other interesting period(s): 4 to 5 months ($ 1003), 5 to 6 months ($ 998), 6 to 7 months ($ 1023), 8 to 9 months ($ 1015), 9 to 10 months ($ 1121) |
| August | Best time: 5 to 6 months before departure (average price: 860 $) Other interesting period(s): 1 to 2 months ($ 905), 4 to 5 months ($ 927), 6 to 7 months ($ 861), 7 to 8 months ($ 908), 8 to 9 months ($ 891), 9 to 10 months ($ 928), 10 to 11 months ($ 928) |
| September | Best time: 6 to 7 months before departure (average price: 762 $) Other interesting period(s): 2 to 3 months ($ 857), 3 to 4 months ($ 855), 5 to 6 months ($ 827), 7 to 8 months ($ 814), 8 to 9 months ($ 786), 9 to 10 months ($ 772), 10 to 11 months ($ 783) |
| October | Best time: 9 to 10 months before departure (average price: 652 $) Other interesting period(s): 2 to 3 months ($ 732), 3 to 4 months ($ 728), 4 to 5 months ($ 710), 7 to 8 months ($ 660), 8 to 9 months ($ 657), 10 to 11 months ($ 730) |
| November | Best time: 3 to 4 months before departure (average price: 637 $) Other interesting period(s): 1 to 2 months ($ 649), 2 to 3 months ($ 638), 4 to 5 months ($ 659), 8 to 9 months ($ 637), 9 to 10 months ($ 641) |
| December | Best time: 4 to 5 months before departure (average price: 766 $) Other interesting period(s): 1 to 2 months ($ 813), 2 to 3 months ($ 791), 3 to 4 months ($ 799), 5 to 6 months ($ 792), 6 to 7 months ($ 809), 9 to 10 months ($ 841), 10 to 11 months ($ 813) |
What day of the week should I book my flight ticket?
Data analysis:
Statistically, sunday is the day when plane tickets for Chicago->Lisbon are the cheapest. So, by buying your plane ticket on a sunday, you will save $9. Conversely, by buying it on a tuesday, you may end up paying $10 more.
Chicago to Lisbon: 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 | |
|---|---|---|---|
| April 2025 | $ 909 $594 to $2007 | very high price | Find a flight |
| May 2025 | $ 882 $560 to $1484 | very good price | Find a flight |
| June 2025 | $ 915 $693 to $1516 | very good price | Find a flight |
| July 2025 | $ 943 $691 to $1409 | very good price | Find a flight |
| August 2025 | $ 777 $618 to $1019 | very good price | Find a flight |
| September 2025 | $ 727 $623 to $886 | very good price | Find a flight |
| October 2025 | $ 694 $581 to $1305 | very good price | Find a flight |
| November 2025 | $ 612 $477 to $984 | very good price | Find a flight |
| December 2025 | $ 718 $524 to $1041 | very good price | Find a flight |
| January 2026 | $ 609 $538 to $713 | very good price | Find a flight |
| February 2026 | $ 554 $523 to $620 | very good price | Find a flight |
| March 2026 | $ 619 $476 to $1112 | very good price | Find a flight |
Data analysis:
Compared to the average price, may, june, july, august, september, october, november, december, january, february and march are cheaper to travel to Lisbon. So it may be interesting to book now to leave during these months!