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Cheap flights from Illinois to Lisbon from $255

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Lisbon departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
11:22 am - 8:10 am
STL
-
LIS
14h 48m1 stop
Lufthansa Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$437Lufthansa
Sun, Jan 18 - Sun, Jan 25
Multiple Airlines Logo
8:05 am - 9:20 am
STL
-
LIS
19h 15m2 stops
Multiple Airlines Logo
5:00 am - 1:55 pm
LIS
-
STL
14h 55m1 stop
$486Multiple Airlines
Sun, Jan 18 - Sun, Jan 25
United Airlines Logo
4:05 pm - 9:20 am
STL
-
LIS
12h 15m1 stop
United Airlines Logo
11:20 am - 9:07 pm
LIS
-
STL
38h 47m2 stops
$489United Airlines
Mon, Mar 9 - Tue, Mar 17
United Airlines Logo
6:00 pm - 11:30 pm
ORD
-
LIS
23h 30m1 stop
United Airlines Logo
11:20 am - 2:20 pm
LIS
-
ORD
33h 00m2 stops
$490United Airlines
Tue, Feb 10 - Tue, Feb 17
United Airlines Logo
7:00 pm - 9:20 am
STL
-
LIS
33h 20m2 stops
United Airlines Logo
11:20 am - 9:07 pm
LIS
-
STL
38h 47m2 stops
$490United Airlines
Mon, Mar 9 - Tue, Mar 17
Delta Logo
2:30 pm - 3:10 pm
ORD
-
LIS
18h 40m2 stops
Delta Logo
5:00 am - 2:20 pm
LIS
-
ORD
15h 20m1 stop
$491Delta
Tue, Jan 6 - Wed, Jan 14
TAP AIR PORTUGAL Logo
7:10 pm - 9:05 am
ORD
-
LIS
7h 55mnonstop
TAP AIR PORTUGAL Logo
11:25 am - 3:00 pm
LIS
-
ORD
9h 35mnonstop
$492TAP AIR PORTUGAL
Wed, Jan 14 - Wed, Jan 21
Air Canada Logo
8:40 pm - 9:20 am
ORD
-
LIS
30h 40m1 stop
Air Canada Logo
5:00 am - 6:40 pm
LIS
-
ORD
19h 40m2 stops
$493Air Canada
Sat, Feb 7 - Thu, Feb 19
Air Canada Logo
4:05 pm - 9:20 am
STL
-
LIS
11h 15m1 stop
Air Canada Logo
5:00 am - 3:29 pm
LIS
-
STL
40h 29m2 stops
$493Air Canada
Fri, Jan 23 - Tue, Jan 27
Delta Logo
10:29 am - 10:35 am
ORD
-
LIS
18h 06m2 stops
Delta Logo
11:25 am - 2:20 pm
LIS
-
ORD
32h 55m1 stop
$497Delta
Wed, Feb 11 - Tue, Feb 17

Delta flights from Illinois to Lisbon

Our best Delta deals on Illinois to Lisbon flight tickets
Delta
Jan 6
ORD2:30 pmChicago O'Hare Intl
18h 40m
2 stops
LIS3:10 pmLisbon Humberto Delgado
Jan 14
LIS5:00 amLisbon Humberto Delgado
15h 20m
1 stop
ORD2:20 pmChicago O'Hare Intl
$491
Find similar
Delta
Feb 11
ORD10:29 amChicago O'Hare Intl
18h 06m
2 stops
LIS10:35 amLisbon Humberto Delgado
Feb 17
LIS11:25 amLisbon Humberto Delgado
32h 55m
1 stop
ORD2:20 pmChicago O'Hare Intl
$497
Find similar
Delta
Jan 6
ORD2:30 pmChicago O'Hare Intl
18h 40m
2 stops
LIS3:10 pmLisbon Humberto Delgado
Jan 14
LIS5:00 amLisbon Humberto Delgado
23h 34m
2 stops
ORD10:34 pmChicago O'Hare Intl
$501
Find similar

United Airlines flights from Illinois to Lisbon

Our best United Airlines deals on Illinois to Lisbon flight tickets
United Airlines
Mar 9
STL4:05 pmLambert-St Louis
12h 15m
1 stop
LIS9:20 amLisbon Humberto Delgado
Mar 17
LIS11:20 amLisbon Humberto Delgado
38h 47m
2 stops
STL9:07 pmLambert-St Louis
$489
Find similar
United Airlines
Feb 10
ORD6:00 pmChicago O'Hare Intl
23h 30m
1 stop
LIS11:30 pmLisbon Humberto Delgado
Feb 17
LIS11:20 amLisbon Humberto Delgado
33h 00m
2 stops
ORD2:20 pmChicago O'Hare Intl
$490
Find similar
United Airlines
Jan 4
ORD12:00 pmChicago O'Hare Intl
16h 15m
2 stops
LIS10:15 amLisbon Humberto Delgado
Jan 16
LIS5:00 amLisbon Humberto Delgado
16h 20m
1 stop
ORD3:20 pmChicago O'Hare Intl
$494
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 22, 2025.
Use the filters below to find and compare flights from Illinois to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/18

11:22 am-8:10 am

1 stop14h 48m

Lisbon Humberto Delgado

Sun 1/25

5:00 am-1:55 pm

1 stop14h 55m

$437

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Sun 1/18

8:05 am-9:20 am

2 stops19h 15m

Lisbon Humberto Delgado

Sun 1/25

5:00 am-1:55 pm

1 stop14h 55m

$486

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 3/9

4:05 pm-9:20 am

1 stop12h 15m

Lisbon Humberto Delgado

Tue 3/17

11:20 am-9:07 pm

2 stops38h 47m

$489

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 2/10

6:00 pm-11:30 pm

1 stop23h 30m

Lisbon Humberto Delgado

Tue 2/17

11:20 am-2:20 pm

2 stops33h 00m

$490

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Mon 3/9

7:00 pm-9:20 am

2 stops33h 20m

Lisbon Humberto Delgado

Tue 3/17

11:20 am-9:07 pm

2 stops38h 47m

$490

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 1/6

2:30 pm-3:10 pm

2 stops18h 40m

Lisbon Humberto Delgado

Wed 1/14

5:00 am-2:20 pm

1 stop15h 20m

$491

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 1/14

7:10 pm-9:05 am

Nonstop7h 55m

Lisbon Humberto Delgado

Wed 1/21

11:25 am-3:00 pm

Nonstop9h 35m

$492

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sat 2/7

8:40 pm-9:20 am

1 stop30h 40m

Lisbon Humberto Delgado

Thu 2/19

5:00 am-6:40 pm

2 stops19h 40m

$493

St. LouisLisbon

STL - LIS

STLLIS

Lambert-St Louis

Fri 1/23

4:05 pm-9:20 am

1 stop11h 15m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-3:29 pm

2 stops40h 29m

$493

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 2/11

10:29 am-10:35 am

2 stops18h 06m

Lisbon Humberto Delgado

Tue 2/17

11:25 am-2:20 pm

1 stop32h 55m

$497

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Lisbon from

How to get the cheapest flight ticket from Illinois to Lisbon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Lisbon?

In general, February is the cheapest month to fly from Illinois to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $555. If you are unable to visit Lisbon during the month of February, then departing from Illinois during the month January is also very affordable. Most momondo users find prices during this month for around $569.

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $587. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Lisbon for around $807.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the evening when flights can be purchased for as low as $582. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $799 on average. Flights to Lisbon from Illinois in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Lisbon Humberto Delgado flight route?

Fly from Chicago O'Hare Intl to Lisbon Humberto Delgado for the best Illinois - Lisbon Humberto Delgado flight prices

How far in advance should I book a flight to Lisbon?

You are more likely to see cheaper flights to Lisbon from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $771 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Illinois for as low as $688 on momondo.

What cabin class options are available on Illinois to Lisbon Humberto Delgado flights?

There are 3 cabin classes available to choose from on Illinois to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Lisbon flights?

You could potentially save up to 43% on your flight if you consider stops on a Illinois to Lisbon flight.

Cheap Illinois to Lisbon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Lisbon

Best Price Found

$384

Fastest flight time

7h 55m

Direct flights

Mon, Thu, Fri, Sat and Sun

Airports in Lisbon

1 airport
The best one-way flight to Lisbon from Illinois in the past 72 hours is $384. The best round-trip flight deal from Illinois to Lisbon found on momondo in the last 72 hours is $468.
The fastest flight from Illinois to Lisbon takes 7h 55m
Direct flights go from Illinois to Lisbon on Monday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Lisbon. From Illinois there are direct flights to Lisbon Humberto Delgado (LIS).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Lisbon Humberto Delgado Airport?

    Prices for flights from Illinois to Lisbon Humberto Delgado Airport were last updated today.

  • How many operators does momondo search for flights from Illinois to Lisbon Humberto Delgado Airport?

  • How old do you have to be to fly from Illinois to Lisbon Humberto Delgado Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Lisbon Humberto Delgado Airport.

  • What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

    The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Illinois to Lisbon?

Best airlines flying from Illinois to Lisbon

Compare and see reviews for airlines that fly from Illinois to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $369Free CancellationRating
7.4
1,620 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $396Free CancellationRating
7.0
592 reviews
Search Icelandair flights
LufthansaPriceFrom $441Free CancellationRating
6.8
7,649 reviews
Search Lufthansa flights
Air FrancePriceFrom $470Free CancellationRating
7.4
1,513 reviews
Search Air France flights
SWISSPriceFrom $489Free CancellationRating
7.5
1,817 reviews
Search SWISS flights
TAP AIR PORTUGALPriceFrom $492Free CancellationRating
7.2
2,095 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $494Free CancellationRating
7.2
1,410 reviews
Search Aer Lingus flights
Virgin AtlanticPriceFrom $503Free CancellationRating
7.5
677 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom $505Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
KLMPriceFrom $527Free CancellationRating
7.7
1,434 reviews
Search KLM flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Ericeira
Fátima
Nazaré
Oeiras
Setúbal
Peniche
Estoril
Leiria
Sesimbra
Tomar
Almada
Evora
Figueira da Foz
Zambujeira do Mar
Batalha
Comporta
Torres Vedras
Sines
Óbidos

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Lisbon?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Lisbon. momondo saves you time and could save you money on your trip.

Can I find flights from Illinois to Lisbon with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Lisbon flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Lisbon?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Lisbon.

I’m not ready to book a flight from Illinois to Lisbon right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Lisbon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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