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Find cheap flights from Chicago to Portugal from $223

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Portugal departing on 8/19. 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
Fri 7/12
Fri 7/19

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Best Portugal Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Lisbon
Lisbonnonstop$434
Ponta Delgada
Ponta Delgada1 stop$703
Horta
Horta1 stop$812

Good to know

Low season

January

High season

September

Cheapest flight

$223
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Chicago O'Hare Airport to Lisbon

FAQs - booking Portugal flights

  • How can I quickly get to O’Hare International Airport from Chicago?

    If you’d like to quickly get to O’Hare International Airport from Chicago, you should board the CTA Blue Line L train. Onboard this train, you’ll get to the airport after roughly 40min. Given that the CTA Blue Line L train is also the cheapest means to get to O’Hare International Airport from Chicago, boarding it is financially advisable.

  • Which airport in Portugal should I fly to if I intend to visit other European countries?

    If you intend to fly to other European countries after visiting Portugal, you should book a flight that lands at Humberto Delgado Airport in Lisbon. Here, you can get a flight that heads to Spain, Malta, Finland, Britain, Netherlands, and even Luxembourg.

  • Which airlines that travel from Chicago to Portugal are eco-friendly?

    If you’re a fan of sustainable travel, you should consider traveling with either British Airways or United Airlines to Portugal from Chicago, as these two airlines have taken considerable steps to minimize their carbon footprint.

  • What are the popular layover options for flights to Portugal from Chicago?

    There are numerous layover options for flights from Chicago to Portugal. The most frequented options are London, Zurich, and Paris. You should board a British Airways flight if you’d like to have a layover in London, a Swiss Air Lines flight if you’d like to have a layover in Zurich, and an Air France flight if you’d like to stop over in Paris.

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

    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 from Chicago to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portugal from 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 from Chicago to Portugal?

    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 Portugal with an airline and back to Chicago with another airline.

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

    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 Portugal from 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 Portugal

  • Morning departure is around 9% more expensive than an evening flight, on average*.
  • All flights from Chicago to Portugal usually take off from the prestigious O’Hare International Airport. Located northwest of Chicago’s central business district, this airport is quite positively reviewed, as it has plenty of amenities. Some of the amenities you’ll have access to at this airport include on-site restaurants, boutique shops, spacious lounges, and an urban garden. This remarkable airport also has a free yoga room where you can relax while waiting for your flight. Given that the lines here are pretty short, you’ll find it easy to check in.
  • Several airlines offer flights from Chicago to Portugal. Although none of these airlines offer direct flights, a good number of them offer one-stop flights. For example, Lufthansa Airlines, British Airways, KLM Royal Dutch Airlines, United Airlines, and Air France offer one-stop flights to Lisbon from Chicago, while Swiss Air Lines offers one-stop flights from Chicago to Faro.
  • The airport you choose to land at in Portugal should be close to the destinations you intend to visit. If you plan on touring the northern part of Portugal, you should book a flight that lands at Francisco Sá Carneiro Airport in Porto, whereas if you plan on touring the southern part of Portugal, you should book a flight that lands at Faro Airport in Faro. If the places you intend to visit are not so far away from the capital, then you should hop on a flight that lands at Humberto Delgado Airport in Lisbon.
  • Just like all other countries, Portugal has strict entry rules. Thus, before embarking on any flight from Chicago to Portugal, it’s essential that you have your entry documents in order. If you’re a US citizen, you must have a valid passport, a document to show that you have sufficient funds to stay in the country, and a return plane ticket. If you plan on staying for a period longer than 90 days, you must have a visa.
  • In Portugal, children under the age of 12 must be seated in child car seats while in a car. If you plan on touring Portugal with your young child, it’s in your best interest to carry a child car seat. If you don’t have one, kindly ensure that any cab you hail has one. This way, you’ll avoid any issues with the Portuguese authorities.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Chicago to Portugal

Need help choosing which airline to fly with from Chicago to Portugal? 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.
8.0
DeltaOverall score based on 10000 reviews
8.0Entertainment
8.6Crew
7.4Food
7.9Comfort
8.2Boarding
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

Standard flight experience, but there is only power at the seat to row 20 on the aircraft, on my initial check in it did not say that was the case

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

I’ve had a couple flights this week on United that were delayed by an hour or more

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Flight delayed for 2 hours due to a part. The plane sat waiting for boarding for a long time and during final preflight inspection the issue was found. Why not do the preflight inspection sooner if you know the plane is being used?

As an advantage member I found the experience very positive

The flight from Amsterdam to Dallas was great, ok food, good service, great entertainment. But Dallas to SF was very tiring because of two hour delay inside the airplane waiting for AA paper work in 99 degrees in the sun. We had no oxygen and the pilot had to ask everyone to blast the AC because it was getting too hot inside the cabin.

We left our child’s tablet on our seat 12 B on the plane and we can’t get a hold of anyone to try to get help locating the tablet.

My flight was cancelled after a 7 hour delay. I am awaiting a refund.

Disappointing. Had to pay 70 euros for one checked bag. Transatlantic flight was cramped, not very comfortable

Ability to select seating would be nice. We were family of three and they had us seated back to back and one of us on the other side of the plane??? That is pretty goofy. Especially when tickets were placed two months in advance.

Good. Madrid to SFO was way better than ARN to Madrid. Mercifully, the seats to Madrid didn't recline. So although there was no leg room, your knees didn't get crushed

I am quite satisfied. The flight was on time and landed early. Staff was friendly.

I could change to business before flight and everything was perfect except for entertainment which was none.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

It was disappointing to have to pay for soft drinks/ water. The sandwich I wanted was not available. Servig happened to late in the flight.

Not good. Long lines for checkin. Cramped seats. Would only give one tiny cup of water. Had to use people movers. Won’t fly TAP again

45 min late. Priority is not a priority as they put everyone in the same bus a than priority become last.

The check in process was terrible. Took a long time to check in because there is not enough agents. Once we got to gate, no announcement to board, all of a sudden people got up and board. The seats were EXTREMELY UNCOMFORTABLE. It was a 3 hours international flight, and we were served one tiny cup of water. 😩😩 The temperature was so hot inside rhe plane we thought we were sitting in an oven. Very difficult to find a flight attendant for assistance. They ran up and down aisle to serve first class but never really look up to seve the rest of the flight. I would never fly on this airline again. The experience was horrible.

What didnt i like? You had to pay for seats after the booking was paid for. If i knew that beforehand i would have booked with emirates for a few dollars more

Most important was the effciency - on-time take-offs and landings, no missed connections, baggage arrived correctly. Friendly & professional crew. Less important was food/drink. Pretty spartan, but we'll know next time and bring our own stuff.

Great airline, new, comfortable and quiet planes. Plenty of leg room and state of the art entertainment system. The big downside is the connection in Lisbon. The airport is small and a bus is needed from the plane to the terminal. Is a mess, takes a lot of time, nobody gives an explanation, boarding zones are not honored, etc.

I thought Miami's airport was very disorganized during the Boarding.

Very efficient boarding - other airlines could learn from them. Friendly, efficient crew. Red eye flight, so dinner meal was irrelevant. Breakfast could have been more substantial. Seats reasonably comfy.

People seated in exit rows should have designated overhead space

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

Book cheap flights from Chicago to Portugal

Recent round-trip flight deals

8/12Mon
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
9/9Mon
nonstopTAP AIR PORTUGAL
9h 10mLIS-ORD
$434
12/9Mon
1 stopFinnair
21h 15mORD-LIS
1/23Thu
1 stopFinnair
13h 55mLIS-ORD
$463
11/3Sun
1 stopDelta
19h 00mORD-LIS
11/13Wed
1 stopDelta
15h 40mLIS-ORD
$480
12/9Mon
2 stopsDelta
14h 45mORD-LIS
1/24Fri
1 stopDelta
15h 40mLIS-ORD
$484
10/29Tue
2 stopsBritish Airways
19h 52mORD-LIS
11/8Fri
1 stopBritish Airways
14h 00mLIS-ORD
$488
11/26Tue
1 stopBritish Airways
10h 23mORD-LIS
12/2Mon
1 stopBritish Airways
27h 10mLIS-ORD
$489
11/28Thu
1 stopIberia
13h 00mORD-OPO
12/10Tue
1 stopIberia
12h 10mOPO-ORD
$524
11/28Thu
1 stopIberia
13h 00mORD-OPO
12/9Mon
2 stopsIberia
17h 20mOPO-ORD
$560
8/17Sat
2 stopsUnited Airlines
16h 10mORD-OPO
8/25Sun
1 stopUnited Airlines
12h 55mOPO-ORD
$764
8/17Sat
2 stopsUnited Airlines
12h 40mORD-OPO
8/25Sun
2 stopsUnited Airlines
18h 35mOPO-ORD
$774

Search by stops

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Recent one-way flight deals

8/19Mon
2 stops
21h 49mORD-LIS
$223
9/28Sat
2 stops
32h 56mORD-LIS
$233
8/20Tue
2 stops
21h 49mORD-LIS
$235
9/7Sat
2 stops
38h 56mORD-OPO
$240
7/20Sat
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
$283
8/19Mon
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
$285
11/10Sun
2 stopsUnited Airlines
13h 10mORD-LIS
$495
9/9Mon
2 stopsBritish Airways
19h 35mORD-FNC
$688
6/26Wed
2 stopsIberia
23h 15mORD-FAO
$1,217
10/20Sun
1 stopBritish Airways
32h 55mORD-FNC
$1,639

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Last minute flights from Chicago to Portugal

Last minute flight, train and bus deals

6/16Sun
multi-stopAir France
56h 10mORD-OPO
6/23Sun
multi-stopAir France
28h 40mOPO-ORD
$900
6/16Sun
multi-stopAir France
56h 10mORD-OPO
6/23Sun
multi-stopAir France
39h 19mOPO-ORD
$904
6/16Sun
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
6/22Sat
nonstopTAP AIR PORTUGAL
9h 20mLIS-ORD
$1,029
6/16Sun
multi-stopDelta
15h 05mMDW-LIS
6/24Mon
multi-stopDelta
17h 24mLIS-MDW
$1,063
6/16Sun
nonstopTAP AIR PORTUGAL
7h 55mORD-LIS
6/24Mon
nonstopTAP AIR PORTUGAL
9h 15mLIS-ORD
$1,490
6/14Fri
multi-stopDelta
15h 50mORD-LIS
6/19Wed
multi-stopDelta
14h 42mLIS-ORD
$1,506
6/13Thu
multi-stopIberia
24h 50mORD-LIS
6/24Mon
multi-stopIberia
13h 45mLIS-ORD
$1,532
6/14Fri
multi-stopIberia
13h 15mORD-LIS
6/19Wed
multi-stopIberia
12h 11mLIS-ORD
$1,556
6/14Fri
multi-stopAmerican Airlines
21h 48mORD-FAO
6/15Sat
multi-stopAmerican Airlines
18h 32mFAO-ORD
$3,832
6/14Fri
multi-stopAmerican Airlines
20h 30mORD-FAO
6/15Sat
multi-stopAmerican Airlines
22h 50mFAO-ORD
$3,842

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Flights to Portugal

Return flight deals:

Portugal - Chicago

Cabin classes:

$2,525
$3,640
$378