$264 Find Cheap Flights from Chicago to Portugal

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 2/2. 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.
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Best Portugal Flight Deals from Chicago

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

Lisbon
Lisbon1 stop$444
Porto
Porto1 stop$474
Ponta Delgada
Ponta Delgada1 stop$588
Funchal
Funchal2 stops$561
Faro
Faro1 stop$486
Lajes
Lajes3 stops$767

Good to know

Low season

January

High season

September

Cheapest flight

$264
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Chicago to Porto

FAQs - booking Portugal flights

  • 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 from Chicago to Portugal 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 from Chicago to Portugal 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 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 from Chicago to Portugal 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

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly from Chicago is January.
  • Morning departure is around 28% more expensive than an evening flight, on average*.
*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 8521 reviews
8.6Crew
7.3Food
8.2Boarding
8.0Comfort
7.9Entertainment
Airline reviews

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

10.0 ExcellentD, Jan 2025ABE - ATL
Read more Delta reviews

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

Fight was delayed an hour due to operational issues ,then further delayed due to ground control for a total of about 1.30 hours. Salad was completely frozen and flatware was so cold you could barely handle it. Crew was friendly and professional and the flight was smooth. The aircraft was clean and well-serviced.

The flight attendants in First Class were mediocre at best. They did not take our tray away until we were about to land and only did so when I press the call button. The United person at the United Club was asked to get us our boarding pass since we missed the flight due in Chicago. She argued that we did not have seats on the flight given to us in Moline. Furthermore, she was adamant that we did not have a First Class ticket. After I spent much time with her trying to show we were correct, she reluctantly agreed. She was probably the most incompetent ticketing person I have ever met and I have traveled 3 million miles on United plus many additional miles with other carriers. United has definitely deteriorated in more than on way.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We arrived early and finally made it to our gate almost an hour after.

Was a pain having to leave the plane and reboard but glad the plane was fixed

Plane was was better than th YVR to ORD flight but was a fraction of the distance. Fly your better planes on longer distance flights.

Nothing wrong with the flight itself. But due to 2+ hrs waiting in immigration and the additional security checkup in O’hare, I nearly missed the flight.

They need to improve their boarding process. Group 1 and/or paying first class passengers shouldn't be in the middle of boarding process

First time and I enjoyed the trip…. Will fly again soon 🔜

Delayed flight because other plane was occupying the gate for longer than expected. Once we boarded the plane had to wait 1 hour before taking off. We. Almost lost our connection flight and the baggage didn’t make it. We had to wait two days to receive our luggage. Hope they improve the timing or work with the airport to get better service.

I’m still missing my bags. I’m soo frustrated

TAP boarding gate agents singled out Group A line to gate check all carry on bags …. Supposedly because of lack on bin space. BUT ALL OTHERS WERE PERMITTED WITH CARRY ON BAGS. Additionally so many passengers entering the plane after us were permitted carry on bags. And when the plane was fully loaded, there was a number of open spaces in the overhead bins. I WILL SEARCH OTHER OPTIONS BEFORE FLYING TAP AGAIN

Boarding went fast. Lisbon's gates are too small for the flights they serve.

Baggage check in was very slow. No sign that the check in was TAP until the station opened. Understaffed and overworked team.

Great pilot, textbook landing in madeira. Everything else, from booking to checkin, plane quality, seat amenities, crew engagement, and overall experience were significantly below standard. I WOULD NOT FLY TAP IF THERE IS ANY OTHER OPTION.

Our flight was canceled for a reason that suggests gross mismanagement. We were re-booked for a flight to a different airport.

Worst: long walk to baggage claim Best: left on time

The flight schedules are better than some airlines. Their website is terrible, it doesn’t store any information so every time you fly you have to re-enter the data. The flight was late taking off but we still got to our destination on time.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Boarding in Dallas was hell with extremely rude gate agents , especially a lady named Rajathi who was the epitome of rudeness with no compassion at all . She was horrible and I wonder why airlines have people like her on their roster who exude arrogance and haughtiness . Will probably not fly British Airwsys because of people like her .

Less than average, low level of shared required information needed during the transfer from airport to another, also the used team during boarding In Indianapolis station is Not Professional

Food was average. Better headphones seats were average at best.

Nice flight. Legroom was good. Food was good. Staff was friendly and helpful. Plane was modern and clean. Seats and headrests were comfortable. Entertainment system was good and modern, with a bright LCD screen and many appealing choices.

I have something to say about the flight I took from London to Gothenburg, after my flight from Austin to London. I fly a lot and have done so for decades. I first flew to Scandinavia in 1973. My former wife is Norwegian. The main thing was the experience at the Gothenburg airport. Three flights from Britain arrived around the same time. So there were huge lines at immigration since Brits are no longer a part of the EU. After over an hour in line, I finally gave my passport to the immigrations man. You’d have thought I was an Afghan. I just barely got into Sweden. I had to answer all kinds of blunt questions. I had to show all kinds of onward tickets, addresses of places I’d be staying and it was pretty daunting. Perhaps it has to do with the situation with Russia. British Air might have done something to prepare people that things have changed a lot and they’d better be ready to run the gauntlet when trying to get into the country here. Thanks for listening and taking this into consideration. Sincerely, a senior citizen of the USA

No land services during boarding, specially while moving from terminal to another

My flight was late. We stayed in aircraft one hour 😩

Flight delay and can’t much help passenger do the change connecting flight.

Even the carry-ons were not allowed and upon getting down, we had the wait for the longest time for the baggage to put on the jet aisle. We had a short connection which British Airways kept changing and made out entire experience poor. I would never fly BA again.

5 days later I have not yet received my luggage so terrible and unacceptable

Book cheap flights from Chicago to Portugal

Recent round-trip flight deals

3/4Tue
1 stopVirgin Atlantic
12h 25mORD-LIS
3/11Tue
1 stopVirgin Atlantic
16h 26mLIS-ORD
$444
2/2Sun
1 stopIcelandair
19h 50mORD-LIS
2/10Mon
1 stopIcelandair
26h 00mLIS-ORD
$465
5/3Sat
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
5/11Sun
nonstopTAP AIR PORTUGAL
9h 15mLIS-ORD
$470
3/5Wed
1 stopTAP AIR PORTUGAL
11h 50mORD-OPO
3/12Wed
1 stopTAP AIR PORTUGAL
14h 40mOPO-ORD
$474
3/5Wed
2 stopsBritish Airways
14h 40mORD-LIS
3/11Tue
1 stopBritish Airways
14h 00mLIS-ORD
$502
2/12Wed
1 stopBritish Airways
19h 25mORD-LIS
2/19Wed
1 stopBritish Airways
14h 00mLIS-ORD
$503
2/5Wed
1 stopDelta
13h 15mORD-LIS
2/13Thu
1 stopDelta
13h 47mLIS-ORD
$510
2/17Mon
1 stopDelta
11h 30mORD-OPO
2/26Wed
1 stopDelta
14h 30mOPO-ORD
$513
3/10Mon
1 stopUnited Airlines
10h 57mORD-LIS
3/18Tue
2 stopsUnited Airlines
32h 42mLIS-ORD
$517
2/2Sun
2 stopsUnited Airlines
14h 55mORD-LIS
2/11Tue
1 stopUnited Airlines
14h 55mLIS-ORD
$535

Search by stops

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Recent one-way flight deals

2/2Sun
2 stops
30h 55mORD-OPO
$264
2/3Mon
3 stops
54h 45mORD-OPO
$285
3/14Fri
2 stopsUnited Airlines
33h 25mORD-LIS
$367
3/28Fri
1 stopUnited Airlines
32h 40mORD-LIS
$369
5/13Tue
1 stopBritish Airways
16h 35mORD-LIS
$371
3/26Wed
nonstopTAP AIR PORTUGAL
7h 40mORD-LIS
$372
3/30Sun
1 stopBritish Airways
14h 45mORD-FNC
$373
1/26Sun
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
$384
5/17Sat
2 stopsDelta
17h 05mORD-LIS
$389
4/19Sat
1 stopDelta
12h 00mORD-LIS
$400

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Last minute flights from Chicago to Portugal

Last minute flight, train and bus deals

1/24Fri
multi-stopTAP AIR PORTUGAL
21h 30mORD-FAO
2/7Fri
multi-stopTAP AIR PORTUGAL
15h 25mFAO-ORD
$464
1/24Fri
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
1/31Fri
nonstopTAP AIR PORTUGAL
9h 30mLIS-ORD
$472
1/24Fri
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
1/31Fri
nonstopTAP AIR PORTUGAL
9h 30mLIS-ORD
$474
1/22Wed
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
2/2Sun
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$476
1/23Thu
multi-stopUnited Airlines
13h 19mORD-LIS
1/30Thu
multi-stopUnited Airlines
32h 03mLIS-ORD
$563
1/23Thu
multi-stopUnited Airlines
18h 10mORD-LIS
1/30Thu
multi-stopUnited Airlines
32h 03mLIS-ORD
$567
1/26Sun
multi-stopAmerican Airlines
17h 28mORD-OPO
4/16Wed
multi-stopAmerican Airlines
17h 19mOPO-ORD
$593
1/24Fri
multi-stopDelta
19h 30mORD-LIS
1/31Fri
multi-stopDelta
18h 34mLIS-ORD
$611
1/25Sat
multi-stopBritish Airways
30h 30mORD-LIS
2/2Sun
multi-stopBritish Airways
16h 33mLIS-ORD
$619
1/24Fri
multi-stopBritish Airways
18h 55mORD-FAO
2/7Fri
multi-stopBritish Airways
27h 10mFAO-ORD
$771

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Everything you need to know for your flight from Chicago to Portugal

Information on your arrival and departure airports

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