$239 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 1/14. 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
Lisbonnonstop$450
Porto
Porto1 stop$458
Ponta Delgada
Ponta Delgada2 stops$636
Funchal
Funchal1 stop$519
Faro
Faro2 stops$510
Lajes
Lajes2 stops$734

Good to know

Low season

January

High season

September

Cheapest flight

$239
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Chicago O'Hare Airport to Lisbon

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 4% cheaper 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 8601 reviews
8.6Crew
7.9Entertainment
8.0Comfort
8.2Boarding
7.3Food
Airline reviews

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.

8.0 ExcellentMelodii, Dec 2024ATL - MSY
Read more Delta reviews

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?

Typically I give delta excellent reviews. Our flight was delayed 2hrs, I was one of the fortunate ones who were able to get to my connecting flight. Also, annoying that on the connecting flight boarding personnel make me put away a small bag into my carryon. It small enough to put in back pocket seat, why hold me and the line up to just push it into my carryon.

Logan airport construction meant that boarding was chaotic crowded and delayed

Everything was great. Great service, excellent communication, and early arrival

We were forced to wait nearly 50 additional minutes before leaving the terminal.

Free Wi-Fi is good. That’s all - food mediocre, unfriendly crew, poor communication after trying to file a claim for my lost bag, which Delta didn’t even know was lost until I told them.

Delta flight attendants poorly managed the boarding process and overhead storage. My bag was checked last minute and no claim ticket was provided. My bag is now lost. Complete incompetence by all flight crew involved.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

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

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

We were delayed because of ground crew, not because the plane wasn’t ready to go. The food was better than usual!

I still prefer Delta, but Delta doesn’t fly to State College PA.

Everything was fantastic. Modern plane. All the amenities! Although the paid snacks and meals are pure robbery. Like i understand airlines need to make money, but 11$ USD for an overnight oats with some nuts in it and barely any pieces of apple.... Highway robbery

United needs to figure out its Economy PLUS standards; its better than economy but that's not saying much. It seems like United stripped away all the basics for an international flight (such as In Seat entertainment) and repackaged some of them as plus. Would not fly United internationally again.

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.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

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!

Probably my favorite airline and way to go to Europe. Everything went smoothly! Food was tasty, crew was pleasant. Really cannot complain!

Golf Bags never made it on the flight. Very expensive golf bag and. Clubs,shoes, clothing. Will file a claim against Aer Lingus

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.

Great overall experience with TAP - would not hesitate to recommend for your next trip to or from Portugal

Correct meal and overall flight went well. 204€ for an extra luggage is simply exaggerated

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

Easy and quick check in, clean and nice seats. Overall excellent experience.

The seats in airbus from LA to London are uncomfortable. They are too narrow. I am a slim person but felt cramped. The way the seats are laid out really hinders privacy. You are forced to look at the person next to you which is awkward, Also the entertainment on the same leg was limited. The crew was excellent and attentive and the food was decent. The seats on London to Delhi leg were way better. The crew again was very attentive and polite.

Great job notifying of 30 minute delay in departure. Fabulous job making up for the time and arriving as scheduled. Air travel is just no fun anymore with the extreme overcrowding, and someone needs to come up with an innovative plan for loading and unloading passengers (load all window seats first, middle seats second, aisle seats last?). Great job getting the luggage on the carousel in record time!

Although it was an overnight flight, the crew could’ve have made more refreshment passes.

All and it was good . But no one woke me when meals came around . Please have a don’t not disturb sign if you opted for that . Left very hungry missing all meals .

It was good but I wished if they could have sign do not disturb if we did not wanted any meals . I was tired and slept through the entire flight and woke up just before landing .being hungry Too late to ask for something to eat before exiting the flight . Left feeling hunger 🙁

Late in leaving the US. Late in arriving in UK. 2 plua hous on ground in UK before leaving. Late in arriving in Spain. Didn't get our bags until the next night.

Book cheap flights from Chicago to Portugal

Recent round-trip flight deals

2/2Sun
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
2/9Sun
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$450
1/24Fri
1 stopTAP AIR PORTUGAL
19h 40mORD-OPO
1/31Fri
1 stopTAP AIR PORTUGAL
12h 30mOPO-ORD
$458
2/18Tue
1 stopIberia
17h 15mORD-OPO
2/26Wed
1 stopIberia
12h 10mOPO-ORD
$511
2/17Mon
1 stopIberia
13h 05mORD-LIS
2/28Fri
1 stopIberia
14h 00mLIS-ORD
$515
1/19Sun
1 stopUnited Airlines
11h 54mORD-LIS
1/29Wed
2 stopsUnited Airlines
33h 34mLIS-ORD
$523
1/8Wed
1 stopUnited Airlines
13h 15mORD-LIS
1/17Fri
2 stopsUnited Airlines
37h 55mLIS-ORD
$524
3/12Wed
1 stopDelta
15h 25mORD-LIS
3/20Thu
1 stopDelta
15h 35mLIS-ORD
$539
1/12Sun
1 stopBritish Airways
17h 40mORD-OPO
1/28Tue
2 stopsBritish Airways
18h 21mOPO-ORD
$541
1/13Mon
1 stopDelta
11h 30mORD-OPO
1/23Thu
1 stopDelta
33h 15mOPO-ORD
$543
1/8Wed
2 stopsBritish Airways
15h 25mORD-LIS
1/15Wed
1 stopBritish Airways
14h 49mLIS-ORD
$543

Search by stops

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Recent one-way flight deals

1/14Tue
2 stops
36h 13mORD-LIS
$239
2/26Wed
2 stops
45h 05mORD-OPO
$244
2/8Sat
1 stopUnited Airlines
11h 45mORD-LIS
$362
3/15Sat
1 stopUnited Airlines
21h 00mORD-LIS
$384
4/9Wed
nonstopTAP AIR PORTUGAL
8h 00mORD-LIS
$385
4/8Tue
2 stopsBritish Airways
18h 15mORD-LIS
$387
1/1Wed
nonstopTAP AIR PORTUGAL
7h 40mORD-LIS
$398
4/14Mon
1 stopBritish Airways
31h 45mORD-FNC
$409
12/29Sun
2 stopsDelta
18h 05mORD-LIS
$435
12/31Tue
2 stopsDelta
41h 35mORD-FNC
$555

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Last minute flights from Chicago to Portugal

Last minute flight, train and bus deals

12/23Mon
multi-stop
13h 10mORD-LIS
12/30Mon
multi-stop
28h 00mLIS-ORD
$1,094
12/23Mon
multi-stopBritish Airways
13h 10mORD-LIS
12/30Mon
multi-stopBritish Airways
14h 15mLIS-ORD
$1,118
12/23Mon
multi-stopUnited Airlines
31h 10mORD-LIS
12/30Mon
multi-stopUnited Airlines
24h 25mLIS-ORD
$1,229
12/23Mon
multi-stopUnited Airlines
31h 10mORD-LIS
12/31Tue
multi-stopUnited Airlines
14h 55mLIS-ORD
$1,267
12/23Mon
multi-stopDelta
17h 10mORD-LIS
12/31Tue
multi-stopDelta
17h 15mLIS-ORD
$1,497
12/23Mon
multi-stopDelta
18h 10mORD-LIS
12/31Tue
multi-stopDelta
20h 14mLIS-ORD
$1,510
12/21Sat
multi-stopIberia
9h 45mORD-LIS
12/30Mon
multi-stopIberia
14h 15mLIS-ORD
$1,911
12/21Sat
multi-stopIberia
9h 45mORD-LIS
1/1Wed
multi-stopIberia
17h 22mLIS-ORD
$2,147
12/22Sun
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
1/1Wed
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$2,261
12/24Tue
multi-stopTAP AIR PORTUGAL
17h 44mORD-LIS
1/1Wed
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$2,681

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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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