Find Cheap Flights from Chicago to Lisbon Humberto Delgado (CHI - LIS)

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Good to Know

Low Season:
February
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
21%
expected price increase
Average Price:
$1111
(avg. price over the last 2 weeks)
Good Deal:
$802
or less (round trip)

When to Book Flights from Chicago to Lisbon Humberto Delgado

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $801 or less.
The cheapest flight from Chicago to Lisbon Humberto Delgado was found 90 days before departure, on average.
Book at least 5 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is February.
Morning departure is around 40% 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

FAQs for Booking Chicago to Lisbon Humberto Delgado Flights

How long does a flight from Chicago to Lisbon Humberto Delgado take?
An average nonstop flight takes 11h 46m, covering a distance of 3989 miles.
Which airlines provide the cheapest flights from Chicago to Lisbon Humberto Delgado?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($561), British Airways ($582) and Finnair ($638).
Do I need a passport to fly between Chicago and Lisbon Humberto Delgado?
Yes.
What’s the cheapest day of the week to fly Chicago to Lisbon Humberto Delgado?
For Chicago to Lisbon Humberto Delgado, Sunday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Lisbon Humberto Delgado back to Chicago, the best deals are generally found on Saturday, with Thursday being the most expensive.

Book cheap flights from Chicago to Lisbon Humberto Delgado (round-trip)

Airports
Origin
Chicago
$561
only
$561
Destination
Lisbon
$561
only
$561
Sun, Feb 18
ORD
LIS
34h 20m
Tue, Feb 27
LIS
ORD
33h 20m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 23
ORD
LIS
15h 10m
Thu, May 3
LIS
ORD
13h 04m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BOS
LHR
Good 6.0

Airline accommodated the delay with free room and meal voucher.

Flight was delayed 24 hours. Text message was sent on route that the flight was on time. Mechanical problems.

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

LHR
ORD
Good 6.6

Flight on time, friendly crew.

Not so good meals. For a 9 long-haul flight only one meal provided, other was a cheap candy bar. Other carriers do offer breakfast. Traveled with child and did not allow priority boarding at LHR. Limited leg room, I assume this already a trend well known by travelers.

LHR
AUS
Mediocre 2.0

Nothing it was a nightmare

The rude security staff, my previous British air flight from Dublin was 30’minutes late. Heathrow is terrible for connecting flights even with 2 hour leg room. What a joke. English people suck.

IAD
LHR
Good 6.0

General sense of management and professionalism, punctuality.

Lack of attention to detail and general frugality

Thu, May 10
ORD
LIS
12h 15m
Thu, May 24
LIS
ORD
13h 35m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 20
ORD
LIS
32h 10m
Fri, Apr 27
LIS
ORD
13h 25m
Trip: 8 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2864 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
JFK
HEL
Mediocre 3.0

The plane landed much later than expected, and I missed my connecting flight to Moscow. While I was given another boarding pass, I had to have another layover in St. Petersburg, and fly to Moscow from there. The flight turned out to be much longer, and much more exhausting. My overall experience was unpleasant.

LED
HEL
Good 6.5

Nice crew that were helpful.

Small plane, cramped seating.

HEL
JFK
Mediocre 2.0

my plane to NY flew off without me and 11 people.

HEL
JFK
Excellent 8.0

The meal that they served was great.

The leg room for someone that is 6ft 4in is not the best.

JFK
HEL
Good 6.3

A330 throne seat (2A) is nice and private.

Flight attendant in business class was quite terse and rude.

Sat, Apr 21
ORD
LIS
15h 15m
Sun, Apr 29
LIS
ORD
13h 04m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

SEA
LHR
Excellent 8.0

Quality of food

BOS
LHR
Good 6.0

Airline accommodated the delay with free room and meal voucher.

Flight was delayed 24 hours. Text message was sent on route that the flight was on time. Mechanical problems.

TIA
LGW
Excellent 10.0

Very nice and comfortable

LHR
JFK
Mediocre 3.6

Nothing about wheelchairs

When arrived they don't take wheelchairs

Mon, Feb 26
ORD
LIS
21h 35m
Mon, Mar 5
LIS
ORD
34h 50m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 11
ORD
LIS
32h 10m
Fri, Apr 20
LIS
ORD
13h 25m
Trip: 10 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2864 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
KAO
HEL
Excellent 8.3

We where really late and they where very helpfull.

LHR
HEL
Good 7.3

Beautiful new modern aircraft & plenty of spare seats on the flight. Paid for Economy comfort & it was worth it.

Did not like that you had to pay for drinks & snacks. For someone of Finnair’s standing, you would think they would include it.

JFK
HEL
Mediocre 3.0

The plane landed much later than expected, and I missed my connecting flight to Moscow. While I was given another boarding pass, I had to have another layover in St. Petersburg, and fly to Moscow from there. The flight turned out to be much longer, and much more exhausting. My overall experience was unpleasant.

BKK
HEL
Excellent 9.3

Plane was late taking off and almost missed my next connection. Due to landing late my luggage did not make it on make it on my flight. However the airline delivered to my place the following morning. It was not an inconvenience to me as the baggage was delivered in a timely fashion. Thank you Finnair!

JFK
HEL
Good 6.3

A330 throne seat (2A) is nice and private.

Flight attendant in business class was quite terse and rude.

Tue, May 1
ORD
LIS
20h 10m
Wed, May 9
LIS
ORD
12h 43m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

DEN
LHR
Excellent 8.3

Entertainment, blanket

Not enough leg room, chocolate dessert

SEA
LHR
Excellent 8.0

Quality of food

LHR
ORD
Good 6.6

Flight on time, friendly crew.

Not so good meals. For a 9 long-haul flight only one meal provided, other was a cheap candy bar. Other carriers do offer breakfast. Traveled with child and did not allow priority boarding at LHR. Limited leg room, I assume this already a trend well known by travelers.

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

Sat, Apr 28
ORD
LIS
17h 40m
Thu, May 10
LIS
ORD
22h 00m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 1
ORD
LIS
18h 55m
Wed, Apr 11
LIS
ORD
13h 04m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BOS
LHR
Good 6.0

Airline accommodated the delay with free room and meal voucher.

Flight was delayed 24 hours. Text message was sent on route that the flight was on time. Mechanical problems.

TIA
LGW
Excellent 10.0

Very nice and comfortable

LHR
JFK
Mediocre 3.6

Nothing about wheelchairs

When arrived they don't take wheelchairs

DUB
LHR
Mediocre 2.0

Nothing I didn’t make the flight

Heathrow security is slower than molasses and rude. They had to check my bags and it took them over an hour. They were condescending and very unprofessional. Also extremely slow.

GVA
LHR
Excellent 10.0

The 787 aircraft is better

Wed, Apr 4
ORD
LIS
32h 10m
Sat, Apr 14
LIS
ORD
13h 25m
Trip: 11 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2864 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
JFK
HEL
Mediocre 3.0

The plane landed much later than expected, and I missed my connecting flight to Moscow. While I was given another boarding pass, I had to have another layover in St. Petersburg, and fly to Moscow from there. The flight turned out to be much longer, and much more exhausting. My overall experience was unpleasant.

DEL
HEL
Okay 4.0

The flight from India was delayed and as a consequence I missed my connecting flight to Miami. I had to put up in a Hotel at Helsinki and take a flight to Miami the next day via London.

BKK
HEL
Excellent 9.3

Plane was late taking off and almost missed my next connection. Due to landing late my luggage did not make it on make it on my flight. However the airline delivered to my place the following morning. It was not an inconvenience to me as the baggage was delivered in a timely fashion. Thank you Finnair!

JFK
HEL
Good 6.3

A330 throne seat (2A) is nice and private.

Flight attendant in business class was quite terse and rude.

KAO
HEL
Excellent 8.3

We where really late and they where very helpfull.

Sun, Apr 29
ORD
LIS
15h 35m
Thu, May 10
LIS
ORD
22h 00m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
ORD
LIS
20h 10m
Wed, Apr 11
LIS
ORD
13h 04m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BOS
LHR
Good 6.0

Airline accommodated the delay with free room and meal voucher.

Flight was delayed 24 hours. Text message was sent on route that the flight was on time. Mechanical problems.

LHR
JFK
Mediocre 3.6

Nothing about wheelchairs

When arrived they don't take wheelchairs

LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

GVA
LHR
Excellent 10.0

The 787 aircraft is better

DEN
LHR
Excellent 8.3

Entertainment, blanket

Not enough leg room, chocolate dessert

Tue, Apr 17
ORD
LIS
31h 55m
Tue, Apr 24
LIS
ORD
13h 20m
Trip: 8 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 2864 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
JFK
HEL
Excellent 10.0

calming environment, finnish style

on the flight to new york i got a game sandwich. i like that. brining finnish culture to us. but on the way from new york to helsinki i got a boring bagel.

LED
HEL
Good 6.5

Nice crew that were helpful.

Small plane, cramped seating.

HEL
MIA
Okay 4.0

Missed my connecting flight from Helsinki to Miami because the flight from New Delhi, India was delayed by more than 4 hours.

HEL
JFK
Excellent 8.0

The meal that they served was great.

The leg room for someone that is 6ft 4in is not the best.

JFK
HEL
Good 6.3

A330 throne seat (2A) is nice and private.

Flight attendant in business class was quite terse and rude.

Tue, Feb 27
ORD
LIS
21h 25m
Tue, Mar 6
LIS
ORD
21h 01m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
ORD
LIS
18h 55m
Tue, Apr 24
LIS
ORD
13h 04m
Trip: 15 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
IAD
LHR
Good 6.0

General sense of management and professionalism, punctuality.

Lack of attention to detail and general frugality

LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

SEA
LHR
Excellent 8.0

Quality of food

TIA
LGW
Excellent 10.0

Very nice and comfortable

Sun, Jan 21
ORD
LIS
14h 40m
Tue, Feb 20
LIS
ORD
21h 01m
Trip: 31 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 21
ORD
LIS
15h 10m
Mon, May 28
LIS
ORD
12h 43m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GVA
LHR
Excellent 10.0

The 787 aircraft is better

IAD
LHR
Good 6.0

General sense of management and professionalism, punctuality.

Lack of attention to detail and general frugality

DUB
LHR
Mediocre 2.0

Nothing I didn’t make the flight

Heathrow security is slower than molasses and rude. They had to check my bags and it took them over an hour. They were condescending and very unprofessional. Also extremely slow.

DEN
LHR
Excellent 8.3

Entertainment, blanket

Not enough leg room, chocolate dessert

LHR
ORD
Good 6.6

Flight on time, friendly crew.

Not so good meals. For a 9 long-haul flight only one meal provided, other was a cheap candy bar. Other carriers do offer breakfast. Traveled with child and did not allow priority boarding at LHR. Limited leg room, I assume this already a trend well known by travelers.

Sun, Jan 28
ORD
LIS
19h 25m
Tue, Jan 30
LIS
ORD
21h 03m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 14
ORD
LIS
11h 46m
Sun, Apr 22
LIS
ORD
17h 25m
Trip: 9 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14889 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GVA
LHR
Excellent 10.0

The 787 aircraft is better

BCN
LHR
Excellent 10.0

Nice, smooth, quick flight.

LHR
ORD
Good 6.6

Flight on time, friendly crew.

Not so good meals. For a 9 long-haul flight only one meal provided, other was a cheap candy bar. Other carriers do offer breakfast. Traveled with child and did not allow priority boarding at LHR. Limited leg room, I assume this already a trend well known by travelers.

LHR
NBO
Okay 5.0

Boarding, friendly people in London and Hamburg

Flight attendants, plane, food

BOS
LHR
Good 6.0

Airline accommodated the delay with free room and meal voucher.

Flight was delayed 24 hours. Text message was sent on route that the flight was on time. Mechanical problems.

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Chicago to Lisbon Humberto Delgado Flight Information

Flights Arrive in Lisbon Humberto Delgado
Flights Depart from Chicago
Flight Price $561
Distance 3989 miles
Airlines British Airways, Major Airline, Finnair
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.