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Cheap flights from Chicago O'Hare Intl Airport to Portugal from $237

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Portugal departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Portugal

Cheap round-trip flights

Scandinavian Airlines Logo
7:20 pm - 4:05 pmORD-LIS
14h 45m1 stop
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS-ORD
29h 50m1 stop
$433Scandinavian Airlines
Find Deal
Sun, Nov 9 - Wed, Nov 19
Scandinavian Airlines Logo
7:20 pm - 4:05 pmORD-LIS
14h 45m1 stop
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS-ORD
29h 50m1 stop
$445Scandinavian Airlines
Find Deal
Sun, Nov 9 - Wed, Nov 19
TAP AIR PORTUGAL Logo
8:15 pm - 10:10 amORD-LIS
7h 55mnonstop
TAP AIR PORTUGAL Logo
11:25 am - 3:00 pmLIS-ORD
9h 35mnonstop
$471TAP AIR PORTUGAL
Find Deal
Fri, Jan 16 - Wed, Jan 21
TAP AIR PORTUGAL Logo
6:00 pm - 8:00 amORD-LIS
8h 00mnonstop
TAP AIR PORTUGAL Logo
12:55 pm - 4:10 pmLIS-ORD
9h 15mnonstop
$472TAP AIR PORTUGAL
Find Deal
Sun, Oct 5 - Wed, Oct 15
Air Canada Logo
7:20 am - 9:20 amORD-LIS
20h 00m2 stops
Air Canada Logo
11:20 am - 1:14 pmLIS-ORD
31h 54m2 stops
$478Air Canada
Find Deal
Tue, Nov 11 - Tue, Nov 18
Air Canada Logo
7:15 am - 9:20 amORD-LIS
20h 05m1 stop
Air Canada Logo
11:20 am - 2:40 pmLIS-ORD
33h 20m2 stops
$479Air Canada
Find Deal
Tue, Nov 18 - Tue, Dec 2
United Airlines Logo
10:35 am - 9:20 amORD-LIS
16h 45m1 stop
United Airlines Logo
5:00 am - 3:20 pmLIS-ORD
16h 20m1 stop
$484United Airlines
Find Deal
Tue, Jan 20 - Thu, Feb 19
United Airlines Logo
4:20 pm - 9:30 amORD-OPO
11h 10m1 stop
United Airlines Logo
12:30 pm - 8:05 pmOPO-ORD
13h 35m1 stop
$484United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
British Airways Logo
10:35 pm - 11:10 amORD-FNC
30h 35m1 stop
British Airways Logo
6:40 pm - 2:50 pmFNC-ORD
26h 10m1 stop
$639British Airways
Find Deal
Mon, Sep 22 - Tue, Sep 30
British Airways Logo
7:15 pm - 5:50 pmORD-FNC
16h 35m1 stop
British Airways Logo
7:00 pm - 3:55 pmFNC-ORD
26h 55m1 stop
$640British Airways
Find Deal
Mon, Aug 18 - Mon, Aug 25

Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Portugal

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Portugal flight tickets
Scandinavian Airlines
Nov 9
ORD7:20 pmChicago O'Hare Intl
14h 45m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Nov 19
LIS4:55 pmLisbon Humberto Delgado
29h 50m
1 stop
ORD4:45 pmChicago O'Hare Intl
$433
Find similar
Scandinavian Airlines
Nov 9
ORD7:20 pmChicago O'Hare Intl
14h 45m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Nov 19
LIS4:55 pmLisbon Humberto Delgado
29h 50m
1 stop
ORD4:45 pmChicago O'Hare Intl
$445
Find similar
Scandinavian Airlines
Nov 13
ORD7:20 pmChicago O'Hare Intl
14h 45m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Nov 19
LIS4:55 pmLisbon Humberto Delgado
29h 50m
1 stop
ORD4:45 pmChicago O'Hare Intl
$446
Find similar

British Airways flights from Chicago O'Hare Intl Airport to Portugal

Our best British Airways deals on Chicago O'Hare Intl Airport to Portugal flight tickets
British Airways
Aug 13
ORD4:50 pmChicago O'Hare Intl
10h 15m
1 stop
LIS9:05 amLisbon Humberto Delgado
Aug 20
LIS11:05 amLisbon Humberto Delgado
12h 15m
1 stop
ORD5:20 pmChicago O'Hare Intl
$591
Find similar
British Airways
Aug 9
ORD9:11 pmChicago O'Hare Intl
29h 54m
1 stop
LIS9:05 amLisbon Humberto Delgado
Aug 20
LIS11:05 amLisbon Humberto Delgado
15h 06m
1 stop
ORD8:11 pmChicago O'Hare Intl
$597
Find similar
British Airways
Aug 12
ORD4:30 pmChicago O'Hare Intl
19h 55m
1 stop
LIS6:25 pmLisbon Humberto Delgado
Aug 20
LIS11:05 amLisbon Humberto Delgado
12h 15m
1 stop
ORD5:20 pmChicago O'Hare Intl
$600
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Portugal 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 July 31, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 11/9

7:20 pm-4:05 pm

1 stop14h 45m

Lisbon Humberto Delgado

Wed 11/19

4:55 pm-4:45 pm

1 stop29h 50m

$433

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 11/9

7:20 pm-4:05 pm

1 stop14h 45m

Lisbon Humberto Delgado

Wed 11/19

4:55 pm-4:45 pm

1 stop29h 50m

$445

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Fri 1/16

8:15 pm-10:10 am

Nonstop7h 55m

Lisbon Humberto Delgado

Wed 1/21

11:25 am-3:00 pm

Nonstop9h 35m

$471

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 10/5

6:00 pm-8:00 am

Nonstop8h 00m

Lisbon Humberto Delgado

Wed 10/15

12:55 pm-4:10 pm

Nonstop9h 15m

$472

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 11/11

7:20 am-9:20 am

2 stops20h 00m

Lisbon Humberto Delgado

Tue 11/18

11:20 am-1:14 pm

2 stops31h 54m

$478

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 11/18

7:15 am-9:20 am

1 stop20h 05m

Lisbon Humberto Delgado

Tue 12/2

11:20 am-2:40 pm

2 stops33h 20m

$479

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 1/20

10:35 am-9:20 am

1 stop16h 45m

Lisbon Humberto Delgado

Thu 2/19

5:00 am-3:20 pm

1 stop16h 20m

$484

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 11/5

4:20 pm-9:30 am

1 stop11h 10m

Porto

Wed 11/12

12:30 pm-8:05 pm

1 stop13h 35m

$484

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Mon 9/22

10:35 pm-11:10 am

1 stop30h 35m

Funchal Madeira

Tue 9/30

6:40 pm-2:50 pm

1 stop26h 10m

$639

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Mon 8/18

7:15 pm-5:50 pm

1 stop16h 35m

Funchal Madeira

Mon 8/25

7:00 pm-3:55 pm

1 stop26h 55m

$640

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 Portugal from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Portugal

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 Portugal?

The cheapest month to fly to Portugal from Chicago O'Hare Intl Airport is in January. Flight prices, which tend to average around $546, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Chicago O'Hare Intl Airport during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $570.

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

According to our data, Wednesday is the cheapest day to fly to Portugal from Chicago O'Hare Intl Airport. The lowest ticket price found for a Wednesday departure recently was $590. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Saturday, with ticket prices averaging around $826.

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

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Chicago O'Hare Intl Airport to Portugal during this time can be as low as $550. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $820 per ticket.

What is the cheapest Chicago O'Hare Intl to Portugal flight route?

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

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

You are more likely to see cheaper flights to Portugal from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $755 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Chicago O'Hare Intl Airport for as low as $715 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Portugal flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl to Portugal 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 Chicago O'Hare Intl Airport to Portugal flights?

You could potentially save up to 14% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Portugal flight.

Cheap Chicago O'Hare Intl Airport to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Portugal

Best Price Found

$237

Fastest flight time

7h 55m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Portugal

5 airports
The best one-way flight to Portugal from Chicago O'Hare Intl Airport in the past 72 hours is $237. The best round-trip flight deal from Chicago O'Hare Intl Airport to Portugal found on momondo in the last 72 hours is $433.
The fastest flight from Chicago O'Hare Intl Airport to Portugal takes 7h 55m
Direct flights go from Chicago O'Hare Intl Airport to Portugal on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: TAP AIR PORTUGAL and JetBlue.
There are 5 airports near Portugal: Faro (FAO), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL), Funchal Madeira (FNC), Porto (OPO)
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  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Portugal?

    Prices for flights from Chicago O'Hare Intl Airport to Portugal are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Portugal?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Portugal?

    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 Chicago O'Hare Intl Airport to Portugal.

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

    The travel and health documents you'll need for your trip to Portugal 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 Portugal. 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 Chicago O'Hare Intl Airport to Portugal?

Best airlines flying from Chicago O'Hare Intl Airport to Portugal

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Portugal with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $415Free CancellationRating
7.1
1,933 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $436Free CancellationRating
7.0
520 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $445Free CancellationRating
7.3
1,457 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $463Free CancellationRating
7.6
1,316 reviews
Search Finnair flights
American AirlinesPriceFrom $468Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $473Free CancellationRating
7.0
2,859 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $490Free CancellationRating
7.4
655 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $498Free CancellationRating
8.0
7,981 reviews
Search Delta flights
British AirwaysPriceFrom $504Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
SWISSPriceFrom $517Free CancellationRating
7.5
1,686 reviews
Search SWISS flights

Why use momondo?

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

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

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

Yes. All flights to Portugal from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Chicago to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Chicago and alert you when they change.

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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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