$244 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 1/13. 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

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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$451
Porto
Porto1 stop$439
Ponta Delgada
Ponta Delgada1 stop$613
Funchal
Funchal1 stop$551
Faro
Faro2 stops$523
Lajes
Lajes1 stop$682

Good to know

Low season

January

High season

September

Cheapest flight

$244
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 7% 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 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 15% 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 8765 reviews
8.2Boarding
7.9Entertainment
7.9Comfort
8.5Crew
7.3Food
Airline reviews

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

8.0 ExcellentAndrew, Nov 2024MCO - LGA
Read more Delta reviews

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

Crew was nice. Flight was timely. Seats could be better as well as the food considering it’s first class.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

Good and consistent Printer in lounge did not work for me :(

Most of my discomfort was going through TSA. However, the Delta seats had inadequate leg room and I tried my very best to connect to the wi-fi and it was a cumbersome process that finally gave me the info that I needed to sign in AFTER I had completed the flight...Why make it so difficult to use? That said I really really appreciate the pilot taking a little extra time to avoid a bad storm area and both landings in Atlanta and Orlando were flawless to my delight!!!

Delayed in taking off because no flight crew. The in seat entertainment was working properly.

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

I upgraded to first class only to find out that I still had no access to the sky lounge without a sky miles card or AmEx (something that should be emphasized outside of the fine print!) Also, no food or drink service provided during the flight, so I basically paid 4x more just for “free” checked baggage and a bigger seat. Not worth it.

I appreciated friendly service from check-in, to boarding, to in-flight amenities! Attendants were accommodating and helpful. Thank you! Elaine

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

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.

The flight was bumpy. No Breakfast or coffee was served, not even a bottle of water. The food was okay but odd. Rice with peas instead of couscous with some unknown green thing. United Airlines did not tell me that there was VERY LIMITED HANDICAP SERVICE IN NAPLES. De-plane via 20 aluminum steps. Taken to Van. You must walk into the terminal, find luggage, and then walk out to the rental car pickup spot that is 1 block from the terminal.

Crew did their best but the plane configuration is too tight if you're bigger than an average sardine. Controls for the entertainment system didn't all work. The aircraft hadn't been cleaned in awhile.

Flight was delayed due to weather and clogged toilet. Had to deplane. Flight was 3 hours delayed. Crew was awesome and offered water and snacks.

Didn't make it dir to delays - no support from United staff

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

Bused out to the plane, then back to the terminal. Plane was delayed for 2 hours - most of that time spent sitting in bus or plane with NO EXPLANATION of what was going on. Departure delay due to crew not showing up on time. FIX THAT. Why do your own international flights NOT have gates with ramps. Being 74 and having to carry my carry ons up and downstairs is awful.

Boarding the plane from 2 entries at the the same time front and back was ridiculous. I boarded from the back for row 7 and others boarded from the front for row 15, for example. We met mid-plane and had to squeeze past each other. Ridiculous

The flight was cancelled. the staff did not know how to arrange overnight, food and transportation accommodations required by law, causing long lines lasting several hours. the rebooked flight was then delayed 5 times from 9am to 4:45pm

Cancelled flight TP225 from LIS to MIA till next day

The connection required us to travel from terminal A to terminal E with very little time in between flights. While waiting in line, we were called to the service desk to provide our passports. We provided our passports at time of check in, assuming that American Airlines doesn’t communicate well with Iberia, this was a headache.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

Almost great...Need more signs around the airport, especially in Italy Marco Polo.

HORRIBLE. 3 hours delayed. Crew did not communicate properly and was rude to passengers enquiring. Delay caused multiple passengers to miss connections.

1. The flight was late and I did jot get the seat I paid for. I paid for extra leg room and a window seat. I got a middle seat without extra leg room. 2. The customer service representative was not helpful. Explanation: many passengers arrived to the service desk in Madrid near baggage claim to rebook our flights. (We all missed our connecting flight due to delays in JFK). Upon arrival, ghere was one service agent and one line-business. After about 25-30 minutes the agent left and we could see her making a phone call. After about 5 more minutes, 2 other agents arrived. During our wait, another line formed for main cabin customers. We were told to go to the other line, even after waiting around 30-40 minutes. This would have been disastrous for ghose of us who had been waiting for so long. The agents need more training.

I fly to BNA with BA often and this was the worst experience. Arriving in nashville, check in was 1.5 hrs long in the queue with 1 very slow girl at the desk. When more staff came they only catered to priority customers. When all priority were checked in, instead of filtering from the top of the line they took the people from the end, the people who had been queuing for 5 mins vs almost 2 hours. The flight was delayed, for no good reason other than the staff took forever to do anything. At the gate there was zero organisation, we asked the crew what the delay was and they confirmed it wasn't the plane and it was the ground team. One of the flight attendants was one of the rudest I have EVER encountered, that man clearly hated his job, and people...I wish I'd got his name. Food was disgusting, seating was cramped. I've no idea what's changed in the last year but I'm truly shocked.

Booked Economy Premium the 3 seats with my daughters and I, the seats should have been able to tilt back but it only one worked. the crew said they would report it but didnt seem both about our comfort on the return journey.#

Better pillow cases in economy. I didn’t like that I couldn’t pick my seats since I booked with Kayak.

Room between seats unacceptable. If person front of you dropped down there seat even a little you could not be even a little comfortable. No sleep on flight

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.

British Airways canceled my flight and I had to fly on Lufthansa the next day. What a garbage airline 🗑️

3 hr delay. No water given while on the plane for 3hrs.

No fast track available, no organisation. Unpleasant boarding system at gate 20 at JFK. When giving feedback to the lounge team I was told to talk to the manager instead of taking the feedback.

The whole experience was great. The only improvement would be the entertainment selection

Flight attendant kept banging her cart into my aisle seat. Hard. Couldn’t lean seat back. Should be warned of limitations when booking seat

I will travel by BA only in future also. Only suggestion is they should give aisle seat in front near washroom for senior citizens

Book cheap flights from Chicago to Portugal

Recent round-trip flight deals

2/2Sun
1 stopTAP AIR PORTUGAL
32h 40mORD-OPO
2/11Tue
1 stopTAP AIR PORTUGAL
27h 30mOPO-ORD
$439
1/15Wed
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
1/19Sun
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$451
12/1Sun
2 stopsUnited Airlines
19h 52mORD-LIS
12/12Thu
2 stopsUnited Airlines
33h 18mLIS-ORD
$489
12/8Sun
1 stopUnited Airlines
12h 15mORD-LIS
12/19Thu
1 stopUnited Airlines
15h 00mLIS-ORD
$500
12/4Wed
1 stopBritish Airways
13h 10mORD-LIS
12/10Tue
1 stopBritish Airways
24h 15mLIS-ORD
$518
12/1Sun
1 stopBritish Airways
10h 10mORD-LIS
12/9Mon
1 stopBritish Airways
25h 20mLIS-ORD
$521
12/4Wed
1 stopDelta
10h 30mORD-LIS
12/14Sat
1 stopDelta
15h 30mLIS-ORD
$528
12/7Sat
1 stopDelta
19h 00mORD-LIS
12/18Wed
1 stopDelta
17h 26mLIS-ORD
$533
12/9Mon
1 stopIberia
13h 00mORD-OPO
12/16Mon
1 stopIberia
12h 10mOPO-ORD
$553
12/1Sun
1 stopIberia
19h 20mORD-LIS
12/8Sun
1 stopIberia
12h 45mLIS-ORD
$556

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Recent one-way flight deals

1/13Mon
2 stops
45h 07mORD-LIS
$244
1/11Sat
2 stops
52h 18mORD-LIS
$285
4/19Sat
1 stopBritish Airways
33h 00mORD-LIS
$372
3/20Thu
1 stopUnited Airlines
21h 00mORD-LIS
$374
12/8Sun
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
$379
1/10Fri
2 stopsDelta
19h 15mORD-LIS
$392
3/15Sat
2 stopsBritish Airways
17h 00mORD-LIS
$396
1/15Wed
1 stopTAP AIR PORTUGAL
23h 45mORD-FNC
$397
12/30Mon
1 stopUnited Airlines
10h 07mORD-LIS
$403
12/16Mon
1 stopDelta
16h 30mORD-LIS
$449

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Last minute flights from Chicago to Portugal

Last minute flight, train and bus deals

11/23Sat
multi-stopUnited Airlines
31h 05mORD-LIS
12/11Wed
multi-stopUnited Airlines
30h 59mLIS-ORD
$489
11/23Sat
multi-stopUnited Airlines
31h 05mORD-LIS
12/11Wed
multi-stopUnited Airlines
17h 30mLIS-ORD
$502
11/20Wed
multi-stopBritish Airways
10h 27mORD-LIS
12/4Wed
multi-stopBritish Airways
25h 20mLIS-ORD
$521
11/20Wed
multi-stopBritish Airways
18h 29mORD-LIS
12/4Wed
multi-stopBritish Airways
25h 20mLIS-ORD
$551
11/20Wed
nonstopTAP AIR PORTUGAL
7h 50mORD-LIS
11/27Wed
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$999
11/23Sat
multi-stopTAP AIR PORTUGAL
11h 36mORD-LIS
12/11Wed
nonstopTAP AIR PORTUGAL
9h 35mLIS-ORD
$1,106
11/24Sun
multi-stopAir Canada
15h 20mORD-LIS
12/2Mon
multi-stopAir Canada
26h 56mLIS-ORD
$1,151
11/21Thu
multi-stopAmerican Airlines
12h 33mORD-LIS
11/26Tue
multi-stopAmerican Airlines
14h 07mLIS-ORD
$1,294
11/23Sat
multi-stopAmerican Airlines
12h 00mORD-LIS
11/24Sun
multi-stopAmerican Airlines
14h 24mLIS-ORD
$1,433
11/22Fri
multi-stopAir Canada
14h 20mORD-LIS
12/2Mon
multi-stopAir Canada
26h 56mLIS-ORD
$2,422

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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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