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Find cheap flights from Chicago to Portugal from $272

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 9/16. 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
Tue 7/2
Tue 7/9

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Best Portugal Flight Deals

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

Lisbon
Lisbon2 stops$506
Ponta Delgada
Ponta Delgada1 stop$592
Horta
Horta2 stops$1,055

Good to know

Low season

January

High season

September

Cheapest flight

$272
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 Midway 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 17% 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 10402 reviews
8.0Entertainment
7.4Food
7.9Comfort
8.2Boarding
8.6Crew
Airline reviews

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

10.0 ExcellentBarb, Jun 2024MSP - JFK
Read more about Delta reviews

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.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

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?

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!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

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

I have been flying internationally for most of like. My first trip with TAP- wonderful! I look forward to flying with them more frequently in the future!

Larger seats on this plane made the ride reasonably comfortable. Our next flight, from Lisbon to Copenhagen, was inconsiderately tight and stressful. The seats were smaller, space between rows was very limited (no button or mechanism to even slightly incline anyone’s seat), and leg-cramping under the seat in front. Just like sardines in a can. Really felt for all the tall Danes on the flight. Their knees were pressed against the seat in front throughout the flight.

Flight was 2+ hrs late boarding. Delay updates were nonexistent. Boarding Gate change was by word of mouth.

The plane was modern and clean. TAP staff at the airport as well as the flight crew were professional, friendly, and helpful. Overall, a great experience.

The airline made last minute changes to our business class seats splitting our family of 4 with young children who had pre-booked a row of 4 seats. The seat was also dirty and sticky. Our pre-ordered child meals were also not available. :(

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.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

Book cheap flights from Chicago to Portugal

Recent round-trip flight deals

10/30Wed
1 stopTAP AIR PORTUGAL
17h 45mORD-OPO
11/5Tue
1 stopTAP AIR PORTUGAL
27h 30mOPO-ORD
$482
11/6Wed
1 stopTAP AIR PORTUGAL
11h 50mORD-OPO
11/14Thu
1 stopTAP AIR PORTUGAL
25h 30mOPO-ORD
$499
11/6Wed
1 stopUnited Airlines
18h 55mORD-OPO
11/14Thu
2 stopsUnited Airlines
36h 00mOPO-ORD
$505
11/5Tue
2 stopsDelta
15h 20mMDW-LIS
11/12Tue
2 stopsDelta
18h 35mLIS-MDW
$506
11/6Wed
2 stopsUnited Airlines
24h 30mORD-OPO
11/14Thu
2 stopsUnited Airlines
36h 00mOPO-ORD
$509
11/15Fri
2 stopsDelta
15h 49mMDW-LIS
11/29Fri
2 stopsDelta
18h 35mLIS-MDW
$544
10/9Wed
2 stopsIberia
13h 45mORD-OPO
10/16Wed
1 stopIberia
23h 45mOPO-ORD
$584
9/17Tue
1 stopIberia
21h 20mORD-OPO
9/28Sat
2 stopsIberia
23h 10mOPO-ORD
$605
11/22Fri
2 stopsBritish Airways
23h 02mORD-FNC
12/3Tue
1 stopBritish Airways
27h 45mFNC-ORD
$645
11/22Fri
2 stopsBritish Airways
23h 02mORD-FNC
12/3Tue
2 stopsBritish Airways
46h 39mFNC-ORD
$660

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Recent one-way flight deals

9/16Mon
2 stops
26h 27mMDW-LIS
$272
9/16Mon
2 stops
26h 27mMDW-LIS
$276
10/2Wed
1 stopTAP AIR PORTUGAL
24h 30mORD-OPO
$418
7/8Mon
1 stopTAP AIR PORTUGAL
17h 05mORD-OPO
$472
7/9Tue
2 stopsUnited Airlines
14h 17mORD-OPO
$573
8/1Thu
2 stopsUnited Airlines
15h 15mORD-LIS
$582
8/25Sun
1 stopBritish Airways
22h 05mORD-LIS
$637
7/7Sun
1 stopBritish Airways
19h 50mORD-LIS
$643
6/13Thu
1 stopIberia
13h 10mORD-OPO
$682
10/4Fri
1 stopIberia
13h 00mORD-PDL
$2,378

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Last minute flights from Chicago to Portugal

Last minute flight, train and bus deals

6/5Wed
multi-stop
18h 55mORD-OPO
6/11Tue
multi-stop
13h 15mOPO-ORD
$702
6/4Tue
multi-stopUnited Airlines
13h 10mORD-OPO
6/11Tue
multi-stopUnited Airlines
12h 05mOPO-ORD
$709
6/7Fri
multi-stopBritish Airways
13h 05mORD-OPO
7/11Thu
multi-stopBritish Airways
12h 05mOPO-ORD
$788
6/5Wed
multi-stopIberia
15h 20mORD-LIS
6/10Mon
multi-stopIberia
23h 35mLIS-ORD
$818
6/7Fri
multi-stopDelta
19h 45mORD-OPO
6/29Sat
multi-stopDelta
15h 15mOPO-ORD
$830
6/7Fri
multi-stopDelta
19h 45mORD-OPO
6/29Sat
multi-stopDelta
18h 27mOPO-ORD
$840
6/7Fri
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
6/13Thu
nonstopTAP AIR PORTUGAL
9h 25mLIS-ORD
$881
6/3Mon
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
6/12Wed
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$936
6/7Fri
multi-stopIberia
21h 20mORD-OPO
7/11Thu
multi-stopIberia
32h 00mOPO-ORD
$982
6/7Fri
multi-stopBritish Airways
18h 15mORD-LIS
6/14Fri
multi-stopBritish Airways
13h 35mLIS-ORD
$1,415

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Flights to Portugal

Return flight deals:

Portugal - Chicago

Cabin classes:

$2,549
$3,640
$378