Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Portugal to Illinois from $375

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portugal to Illinois

Recent round-trip flight deals from Portugal to Illinois

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS  Lisbon Humberto Delgado-ORD Chicago O'Hare Intl
29h 50m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 4:05 pmORD  Chicago O'Hare Intl-LIS Lisbon Humberto Delgado
14h 55m1 stop Kastrup Copenhagen
$524Scandinavian Airlines
Sun, Feb 7 - Sat, Feb 13
Scandinavian Airlines Logo
5:55 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
28h 50m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 5:05 pmORD  Chicago O'Hare Intl-OPO Porto
15h 55m1 stop Kastrup Copenhagen
$543Scandinavian Airlines
Thu, Nov 5 - Wed, Nov 18
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS  Lisbon Humberto Delgado-ORD Chicago O'Hare Intl
29h 50m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 5:05 pmORD  Chicago O'Hare Intl-LIS Lisbon Humberto Delgado
15h 55m1 stop Kastrup Copenhagen
$546Scandinavian Airlines
Wed, Dec 2 - Wed, Dec 9
Scandinavian Airlines Logo
5:15 pm - 4:45 pmFAO  Faro-ORD Chicago O'Hare Intl
29h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 11:10 amORD  Chicago O'Hare Intl-FAO Faro
58h 00m2 stops Kastrup Copenhagen Stockholm Arlanda
$553Scandinavian Airlines
Sat, Nov 7 - Wed, Nov 18
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS  Lisbon Humberto Delgado-ORD Chicago O'Hare Intl
29h 50m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 4:20 pmORD  Chicago O'Hare Intl-LIS Lisbon Humberto Delgado
15h 10m1 stop Kastrup Copenhagen
$559Scandinavian Airlines
Thu, Jan 14 - Sun, Jan 17
Scandinavian Airlines Logo
5:35 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 5:05 pmORD  Chicago O'Hare Intl-OPO Porto
15h 55m1 stop Kastrup Copenhagen
$570Scandinavian Airlines
Sun, Nov 8 - Wed, Nov 18
Scandinavian Airlines Logo
5:00 pm - 4:45 pmLIS  Lisbon Humberto Delgado-ORD Chicago O'Hare Intl
29h 45m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 4:10 pmORD  Chicago O'Hare Intl-LIS Lisbon Humberto Delgado
15h 00m1 stop Kastrup Copenhagen
$575Scandinavian Airlines
Tue, Nov 10 - Mon, Nov 23
Scandinavian Airlines Logo
5:55 pm - 4:45 pmOPO  Porto-ORD Chicago O'Hare Intl
28h 50m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:10 pm - 5:05 pmORD  Chicago O'Hare Intl-OPO Porto
15h 55m1 stop Kastrup Copenhagen
$581Scandinavian Airlines
Thu, Nov 5 - Wed, Nov 18
TAP AIR PORTUGAL Logo
6:05 am - 3:30 pmFAO  Faro-ORD Chicago O'Hare Intl
15h 25m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
7:00 pm - 3:40 pmORD  Chicago O'Hare Intl-FAO Faro
14h 40m1 stop Lisbon Humberto Delgado
$825TAP AIR PORTUGAL
Fri, Nov 6 - Wed, Nov 11
TAP AIR PORTUGAL Logo
7:50 am - 3:30 pmFNC  Funchal Madeira-ORD Chicago O'Hare Intl
13h 40m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
7:00 pm - 1:30 pmORD  Chicago O'Hare Intl-FNC Funchal Madeira
12h 30m1 stop Lisbon Humberto Delgado
$881TAP AIR PORTUGAL
Wed, Dec 2 - Wed, Dec 9

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Aer Lingus flights from Portugal to Illinois

Our best Aer Lingus deals on Portugal to Illinois flight tickets
Aer Lingus
Nov 10
LIS10:50 amLisbon Humberto Delgado
13h 30m
1 stop
ORD6:20 pmChicago O'Hare Intl
Nov 21
ORD8:05 pmChicago O'Hare Intl
16h 10m
1 stop
LIS6:15 pmLisbon Humberto Delgado
$583
Aer Lingus
Nov 14
LIS10:50 amLisbon Humberto Delgado
13h 30m
1 stop
ORD6:20 pmChicago O'Hare Intl
Nov 16
ORD3:55 pmChicago O'Hare Intl
12h 15m
1 stop
LIS10:10 amLisbon Humberto Delgado
$724
Aer Lingus
Nov 7
LIS10:50 amLisbon Humberto Delgado
13h 30m
1 stop
ORD6:20 pmChicago O'Hare Intl
Nov 14
ORD3:55 pmChicago O'Hare Intl
20h 20m
1 stop
LIS6:15 pmLisbon Humberto Delgado
$730

Iberia flights from Portugal to Illinois

Our best Iberia deals on Portugal to Illinois flight tickets
Iberia
Nov 6
OPO8:20 amPorto
12h 35m
1 stop
ORD2:55 pmChicago O'Hare Intl
Nov 22
ORD5:40 pmChicago O'Hare Intl
16h 20m
1 stop
OPO4:00 pmPorto
$812
Iberia
Dec 1
OPO8:40 pmPorto
24h 15m
1 stop
ORD2:55 pmChicago O'Hare Intl
Dec 8
ORD5:40 pmChicago O'Hare Intl
12h 05m
1 stop
OPO11:45 amPorto
$820
Iberia
Nov 2
LIS6:30 amLisbon Humberto Delgado
21h 24m
2 stops
ORD9:54 pmChicago O'Hare Intl
Mar 17
ORD4:30 pmChicago O'Hare Intl
18h 35m
2 stops
LIS4:05 pmLisbon Humberto Delgado
$956

momondo Fare Finder

 
Use the filters below to find and compare flights from Portugal to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Sun 2/7

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sat 2/13

7:10 pm-4:05 pm

1 stop14h 55m

$524

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Thu 11/5

5:55 pm-4:45 pm

1 stop28h 50m

Chicago O'Hare Intl

Wed 11/18

7:10 pm-5:05 pm

1 stop15h 55m

$543

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Wed 12/2

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Wed 12/9

7:10 pm-5:05 pm

1 stop15h 55m

$546

FaroChicago

FAO Faro - ORD Chicago O'Hare Intl

FAOORD

Faro

Sat 11/7

5:15 pm-4:45 pm

1 stop29h 30m

Chicago O'Hare Intl

Wed 11/18

7:10 pm-11:10 am

2 stops58h 00m

$553

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Thu 1/14

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sun 1/17

7:10 pm-4:20 pm

1 stop15h 10m

$559

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Sun 11/8

5:35 pm-4:45 pm

1 stop29h 10m

Chicago O'Hare Intl

Wed 11/18

7:10 pm-5:05 pm

1 stop15h 55m

$570

LisbonChicago

LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl

LISORD

Lisbon Humberto Delgado

Tue 11/10

5:00 pm-4:45 pm

1 stop29h 45m

Chicago O'Hare Intl

Mon 11/23

7:10 pm-4:10 pm

1 stop15h 00m

$575

PortoChicago

OPO Porto - ORD Chicago O'Hare Intl

OPOORD

Porto

Thu 11/5

5:55 pm-4:45 pm

1 stop28h 50m

Chicago O'Hare Intl

Wed 11/18

7:10 pm-5:05 pm

1 stop15h 55m

$581

FaroChicago

FAO Faro - ORD Chicago O'Hare Intl

FAOORD

Faro

Fri 11/6

6:05 am-3:30 pm

1 stop15h 25m

Chicago O'Hare Intl

Wed 11/11

7:00 pm-3:40 pm

1 stop14h 40m

$825
Quickest round-trip

FunchalChicago

FNC Funchal Madeira - ORD Chicago O'Hare Intl

FNCORD

Funchal Madeira

Wed 12/2

7:50 am-3:30 pm

1 stop13h 40m

Chicago O'Hare Intl

Wed 12/9

7:00 pm-1:30 pm

1 stop12h 30m

$881

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Illinois from

How to get the cheapest flight ticket from Portugal to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Portugal is in February. Flight prices, which tend to average around $695, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $800.

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

The cheapest day to depart from Portugal to Illinois is on a Wednesday when prices can be found for as low as $900. Flights from Portugal to Illinois on a Thursday will generally be more expensive and average around $1,196. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Portugal to Illinois flight route?

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

What cabin class options are available on Portugal to Illinois flights?

There are 2 cabin classes available to choose from on Portugal to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Portugal to Illinois flight deals and tips

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

Best Price Found

$375

Fastest flight time

9h 20m

Direct flights

Mon, Thu, Sat and Sun

Airports in Illinois

98 airports
The best one-way flight to Illinois from Portugal in the past 72 hours is $375. The best round-trip flight deal from Portugal to Illinois found on momondo in the last 72 hours is $524.
The fastest flight from Portugal to Illinois takes 9h 20m
Direct flights go from Portugal to Illinois on Monday, Thursday, Saturday and Sunday. The only airline offering direct flights is TAP AIR PORTUGAL.
There are 98 airports in Illinois. From Portugal there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

Frequently asked questions about flying from Portugal to Illinois

  • When did momondo last update prices for flights from Portugal to Illinois?

    Prices for flights from Portugal to Illinois were last updated today.

  • How many operators does momondo search for flights from Portugal to Illinois?

  • How old do you have to be to fly from Portugal to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Portugal to Illinois

Compare and see reviews for airlines that fly from Portugal to Illinois with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $926Free CancellationRating
7.2
2,381 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portugal to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Portugal.

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

If you are not ready to book a flight from Portugal to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 11/19
Thu 11/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $64
Flights to Los Angelesfrom $38
Flights to Orlandofrom $69
Flights to Miamifrom $50
Flights to San Franciscofrom $47
Flights to Chicagofrom $50
Flights to Las Vegasfrom $43
Flights to Washington, D.C.from $48
Flights to Fort Lauderdalefrom $38
Flights to Bostonfrom $79
Flights to Atlantafrom $42
Flights to Dallasfrom $52