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$344 Find cheap flights from Portugal to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Chicago departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
lun. 6/17
lun. 6/24

Search hundreds of travel sites at once for deals on flights to Chicago

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago, as well as popular online travel agencies
In the last 7 days travelers have searched 41,904,688 times on KAYAK, and here is why:

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Flights to Chicago - Travel Insights & Trends

Get data-powered insights and trends for flights to Chicago to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Chicago?

The average price of all flights to Chicago clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Chicago is Sunday where tickets can be as cheap as $574. On the other hand, the most expensive day to fly is Monday, where prices are $882 on average.

What is the cheapest month to fly to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Chicago, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Chicago is September, where tickets cost $649 on average for one-way flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Portugal is $1,212 and $1,161 respectively. For return trips, the best month to travel is December with an average price of $525.

What is the cheapest time of day to fly to Chicago?

The average price for all flights to Chicago depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Chicago is generally at night, when flights cost $481 on average. The most expensive time of day to fly to Chicago is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,319.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Chicago, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 57 days before departure.

Which is the cheapest airport to fly into in Chicago?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Chicago is Chicago Midway Airport, with an average flight price of $101.

Which airline offers the most flights to Chicago?

Of the 14 airlines that fly to Chicago, American Airlines offers the most flights, with around 4,294 per week, followed by United Airlines with 3,415 flights per week.

How many airports are there in Chicago?

There are 3 airports in Chicago: Chicago O'Hare Airport (ORD), Chicago Midway Airport (MDW) and Chicago Greater Rockford Airport (RFD). The busiest airport is Chicago O'Hare Airport (ORD), with 75% of all flights arriving there.

How long is the flight to Chicago?

The duration of your flight to Chicago depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to Chicago on KAYAK are from Lisbon, which takes 9h 10m, Porto, which takes 13h 45m, and Faro, which takes 15h 25m.

How many direct flights to Chicago are there each day?

There are around 1,790 direct flights from within Portugal to Chicago every day. Most flights depart in the morning, with 6:00 am the most common departure time and 49% of flights departing in the morning.

How many direct flights to Chicago are there each week?

Each week there are around 12,529 direct flights from within Portugal to Chicago. The most common day for departures is Friday, with 15% of flights taking off on this day.

How many long-haul flights are there to Chicago each week?

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Chicago. Instead, there are 5 long-haul flights (6-12 hour flight duration), with the most arriving from Lisbon.

How many cities have direct flights to Chicago?

From Portugal, there are direct flights to Chicago from 1 city. This city is Lisbon and there are 5 direct flights each week.

Good to know

Low season

February

High season

August

Cheapest flight

$344
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Lisbon to Chicago

FAQs - booking Chicago flights

  • Which Chicago airport is closest to central Chicago?

    Chicago is served by 3 major airports. Chicago Midway Airport (9 miles) is the closest to the center of Chicago. Chicago O'Hare Airport is 16 miles from the center and Chicago Greater Rockford is 79 miles away from the center.

  • How much is a flight to Chicago?

    On average, a flight to Chicago costs $776. The cheapest price found on KAYAK in the last 2 weeks cost $581 and departed from Lisbon Humberto Delgado Airport.

  • How does KAYAK find such low prices on flights to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Chicago

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.

Prefer to fly non-stop to Chicago?

Find which airlines fly direct to Chicago, which days they fly and book direct flights.

Nonstop departures

Portugal to Chicago

Monday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Wednesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +81 more

ANA, Aer Lingus, +82 more

Saturday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

See more direct flights

Nonstop returns

Chicago to Portugal

Monday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Wednesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +81 more

ANA, Aer Lingus, +82 more

Saturday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

See more direct flights
See more direct flights

Top 4 airlines serving from Portugal to Chicago

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Chicago? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
American AirlinesOverall score based on 14489 reviews
8.0Crew
6.6Food
7.6Boarding
7.2Comfort
7.1Entertainment
Airline reviews

Left on time. Arrived early. Turbulence coming in and gate not open due to early arrival but expected.

10.0 ExcellentAnonymous, May 2024CDG - ORD
Read more about American Airlines reviews

Left on time. Arrived early. Turbulence coming in and gate not open due to early arrival but expected.

The CX617 from HK to BKK was delayed more than 1.5 hours.

The plane was old and in new of a cleaning up and renovating on the interior. Seats and carpets were very worn and dirty looking. Cushioning on the seats was broken down and not as comfortable as newer jet seats. Food was a little below average but okay. Staff were friendly and hard working but did not pick up debris or food they spilled when collecting from the customers. But they were very helpful and professional.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

They should. Heck planes more often not when they are suppose to be leaving causing delays

Flightl was good and on time. Only problem was the quality of the air in the cabin,didn’t appear to be clearing the air circulation.

The transatlantic flight was wonderful. The regional reminded me of jet blue. Crazy and packed. Not enough overhead space and tough on elderly.

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

Great hospitality and service! Seats are better cushioned then some

Delayed takeoff was inconvenient. We should have boardrd later. Coffee/ beverage service on a 7:30 flight would have been good.

Flight from Lisbon to Barcelona was ok. Business flight Boston to Lisbon was awful. Attendants should pay more attention to Business Passengers and not be so stingy with water. Worse Business Flight I have ever taken. Food was awful. Cramped for space.

Adequate. You get what you pay for. Absolutely no frills but a cost effective way to travel between European countries.

Disastrous boarding. Entered air bridge only to descend stairs and enter a bus. Plane had insufficient storage, was old and chair recline was damaged. Air stewardess was sullen.

I wish to bring to your attention an incident involving a flight attendant that occurred on my recent journey. The attendant displayed a lack of courtesy, which was concerning. For instance, after accidentally spilling water on a passenger, the attendant dismissed the situation rather than offering a proper apology. Additionally, when I handed over my trash, the attendant reacted negatively because I placed a paper cup on the tray, she told me this doesn't go here and threw it back on my table. It was apparent that she was experiencing a challenging day, which unfortunately impacted the service provided to myself and other passengers. While I understand that everyone can have an off day, it is essential for customer-facing staff to seek support to manage personal stress without it affecting their professional responsibilities.

The flight crew was good, the flight itself was quick and comfortable

Boarding was late by 30 min due to a bus missing to take us to the plane... And then the flight was delayed by about 90 minutes, in a 60 min flight

Very agressive with bags both arrival and departures found minor damage to my luggage including my check bag being broken into nothing of value was in there so I do not believe anything was taken but definitely broken zipper into the outer pockets of suitcase

Everything was nearly perfect, and TAP staff were especially helpful when we missed our connecting flights and had to get on the next flight to Rome. The only aspect that could have been better was boarding: it was somewhat disorganized, which created a bit of stress. But in the end, everyone got on the plane, so the less-then-perfect boarding process did not take away from the overall excellent experience.

TAP Air makes you take a bus on arrival or departure, making it difficult for passengers to make connections.

Flight delayed an hour due to plane maintenance issues after getting in line to board. Issue was plane galley ovens which eliminated hot meals for overseas flight. Cold selections were limited due to availability. Drink and meal service (already an hour delayed) was very slow. Upon arrival in Nashville, had to sit at gate for about 15 minutes before disembarking with no explanation. Local police then boarded plane as we were disembarking so maybe that was the issue.

Leg space was not enough. The meal was not satisfactory.

Boarding good. Seats uncomfortable when lie flat. Food was awful. Tasted stale and chicken was dry. No live tv or flight map. Had to pay for internet.

Poor technical details on this plane. 1) There was no WiFi on an 8 hour long-haul flight. So no work could be done. That's below the standard expected for airlines these days. 2) The power outlet at my seat was busted and not working. 3) The headphone jack was loose and I had to keep adjusting my headphones to get good reception, or when it slipped out. - The flight was delayed to due mechanics. Sometimes this can't be avoided, I understand, and it's a big inconvenience to arrive that much later when traveling across time zones (then arriving at 4am from the prior time zone). - Also unique to this flight, the northern lights were visible on the right side of the aircraft, but I only found out after we landed (b/c again no wifi). I understand there are considerations about people being out of their seats to look, but I feel extremely disappointed and resentful that I wasn't told so that I could have a chance to look at this probably once-in-a-lifetime cosmic event from a view in the sky. - Flight crew was otherwise friendly and helpful.

I would have preferred something lighter for the second meal. Maybe a small sandwich .

They cancelled our flight the morning of departure at 4:30am.

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

Book cheap flights from Portugal to Chicago

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Chicago found on KAYAK in the last 72 hours.
11/3dom.
1 stopTAP AIR PORTUGAL
15h 25mFAO-ORD
11/17dom.
1 stopTAP AIR PORTUGAL
21h 25mORD-FAO
$578
9/9lun.
nonstopTAP AIR PORTUGAL
9h 10mLIS-ORD
9/15dom.
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
$588
9/20vie.
1 stop
16h 55mLIS-ORD
9/28sáb.
1 stop
31h 10mORD-LIS
$612
9/20vie.
1 stop
16h 55mLIS-ORD
9/28sáb.
2 stops
20h 35mORD-LIS
$648
9/9lun.
1 stopKLM
24h 50mLIS-ORD
9/15dom.
1 stopKLM
15h 00mORD-LIS
$666
9/1dom.
1 stopAer Lingus
21h 45mLIS-ORD
9/8dom.
1 stopAer Lingus
13h 00mORD-LIS
$671
9/8dom.
1 stopAer Lingus
26h 50mLIS-ORD
9/16lun.
1 stopAer Lingus
23h 50mORD-LIS
$676
9/9lun.
2 stopsDelta
18h 19mLIS-ORD
9/15dom.
1 stopDelta
18h 40mORD-LIS
$700
7/18jue.
2 stopsAmerican Airlines
14h 19mLIS-ORD
8/25dom.
2 stopsAmerican Airlines
13h 16mORD-LIS
$993
8/7mié.
1 stopBritish Airways
20h 40mOPO-ORD
8/14mié.
1 stopBritish Airways
18h 40mORD-OPO
$1,248

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Chicago found on KAYAK in the last 72 hours.
6/6jue.
3 stops
53h 34mLIS-ORD
$344
6/6jue.
2 stops
30h 31mLIS-MDW
$352
9/14sáb.
1 stopAer Lingus
13h 40mLIS-ORD
$521
9/28sáb.
1 stopAer Lingus
13h 40mLIS-ORD
$563
9/14sáb.
1 stopTAP AIR PORTUGAL
12h 10mOPO-ORD
$594
6/6jue.
nonstopTAP AIR PORTUGAL
9h 25mLIS-ORD
$597
10/10jue.
2 stopsAmerican Airlines
28h 25mOPO-ORD
$628
9/14sáb.
2 stopsBritish Airways
28h 14mOPO-ORD
$630
8/31sáb.
2 stopsAmerican Airlines
16h 35mLIS-ORD
$641
6/22sáb.
1 stopBritish Airways
25h 55mLIS-ORD
$655

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Last minute flights to Chicago

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Chicago that are departing in the next 10 days.
5/23jue.
multi-stop
13h 45mLIS-ORD
5/29mié.
multi-stop
10h 59mORD-LIS
$770
5/23jue.
multi-stopFinnair
13h 45mLIS-ORD
5/31vie.
multi-stopFinnair
23h 15mORD-LIS
$779
5/23jue.
multi-stopFinnair
13h 45mLIS-ORD
5/30jue.
multi-stopFinnair
18h 05mORD-LIS
$877
5/20lun.
nonstopTAP AIR PORTUGAL
9h 15mLIS-ORD
8/11dom.
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
$966
5/23jue.
multi-stopAir Canada
13h 08mLIS-ORD
5/29mié.
multi-stopAir Canada
14h 30mORD-LIS
$1,029
5/20lun.
multi-stopDelta
17h 33mLIS-ORD
8/11dom.
multi-stopDelta
12h 00mORD-LIS
$1,136
5/20lun.
multi-stopDelta
17h 26mLIS-MDW
8/11dom.
multi-stopDelta
17h 15mMDW-LIS
$1,143
5/23jue.
multi-stopSWISS
27h 30mLIS-ORD
5/30jue.
multi-stopSWISS
15h 40mORD-LIS
$1,188
5/23jue.
multi-stopAir Canada
13h 08mLIS-ORD
6/1sáb.
multi-stopAir Canada
14h 30mORD-LIS
$1,222
5/23jue.
multi-stopTAP AIR PORTUGAL
22h 51mLIS-ORD
5/31vie.
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
$2,197

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Flights to Chicago

Return flight deals:

Chicago - Portugal

Cabin classes:

$2,957
$974