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Cheap flights from Chicago O'Hare Intl Airport to Lisbon from £347

ORD — LIS
20 Oct — 27 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from O'Hare Intl to Lisbon

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Lisbon

Tue 29/910:29 -
1 stop18h 16m
Tue 13/1005:35 -
1 stop15h 35m
Deal found 18/9£565
Tue 6/1017:00 -
1 stop24h 00m
Wed 14/1015:15 -
1 stop30h 40m
Deal found 18/9£566
Mon 12/1020:10 -
1 stop21h 25m
Thu 22/1017:05 -
1 stop22h 35m
Deal found 19/9£570
Mon 12/1021:15 -
1 stop12h 30m
Mon 9/1118:35 -
1 stop25h 10m
Deal found 19/9£571
Mon 19/1017:29 -
2 stops18h 21m
Sat 31/1005:30 -
2 stops20h 16m
Deal found 17/9£572
Mon 12/1008:29 -
2 stops20h 16m
Wed 21/1011:55 -
1 stop32h 20m
Deal found 17/9£573
Sun 27/1221:50 -
1 stop29h 55m
Wed 6/118:35 -
1 stop30h 10m
Deal found 15/9£573
Mon 12/1007:25 -
1 stop21h 20m
Mon 19/1011:55 -
1 stop32h 20m
Deal found 17/9£574
Sun 27/1221:50 -
1 stop29h 55m
Tue 5/110:40 -
1 stop33h 05m
Deal found 19/9£575
Tue 15/1214:44 -
2 stops12h 16m
Fri 8/105:30 -
2 stops20h 45m
Deal found 15/9£575
Mon 2/1119:15 -
1 stop14h 50m
Sat 7/1116:55 -
1 stop29h 50m
Deal found 15/9£576
Tue 6/1010:30 -
2 stops16h 20m
Thu 15/1012:45 -
1 stop14h 46m
Deal found 18/9£578

Find flight deals from O'Hare Intl to Lisbon

Round-trip from

£566

One-way from

£347

Popular in

June

Cheapest in

February

Average price

£686
British Airways
  • British Airways
  • 6/10-14/10
  • 2 total stops
  • 54h 40m total
  • Chicago to Lisbon
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United Airlines
  • United Airlines
  • 26/12-31/12
  • 2 total stops
  • 28h 35m total
  • Chicago to Lisbon
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Lisbon that are best for you.

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Cheapest return flight

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Sat 26/12

21:35-08:10

2 stops28h 35m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£347

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Sat 17/10

20:40-11:05

1 stop32h 25m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£349

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Wed 16/12

13:55-06:55

1 stop11h 00m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£416
Fastest return journey

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Wed 3/2

19:00-09:05

Nonstop8h 05m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£419

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Wed 21/10

18:00-08:10

Nonstop8h 10m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£429

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Sun 4/10

18:00-08:10

Nonstop8h 10m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£446

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Thu 15/10

10:30-15:15

2 stops22h 45m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£466

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Wed 7/10

10:30-08:50

2 stops16h 20m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£502

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Thu 8/10

21:40-22:45

1 stop19h 05m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£546

ChicagoLisbon

ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado

ORDLIS

Chicago O'Hare Intl

Fri 2/10

17:10-17:50

2 stops18h 40m

Lisbon Humberto Delgado

Wed 31/12

00:00-17:00

Nonstop0h 00m

£548

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from O'Hare Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Lisbon

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Lisbon?

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Lisbon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Lisbon?

Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Lisbon (average of £448). Flying from Chicago O'Hare Intl Airport to Lisbon in June is currently the most expensive (average of £817). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to LIS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Lisbon as you normally would.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to Lisbon?

Airfare is typical for this route at the moment.

Chicago O'Hare Intl Airport to Lisbon flights typically cost between £559 and £838 in October.
The cheapest return price found within the last 5 days was £566 on British Airways (6 Oct–14 Oct).

Related info for your journey

  • What airport do you fly into for flights to Lisbon from Chicago O'Hare Intl?

    For a flight from Chicago O'Hare Intl to Lisbon, you will be flying into Humberto Delgado. Lisbon Humberto Delgado (LIS) is just 4.2 mi from the center of the city. Humberto Delgado is the only Lisbon airport and it handles 1 inbound flight from Chicago O'Hare Intl per day. 0 airlines have flights to Lisbon Humberto Delgado from Chicago O'Hare Intl on a regular basis.

  • How long is the flight from Chicago O'Hare Intl Airport to Lisbon?

    Departing from Chicago O'Hare Intl Airport to Lisbon will take you 11h 35m. The distance from Chicago O'Hare Intl Airport to Lisbon is about 3996 mi. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from O'Hare Intl to Lisbon that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Lisbon flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Lisbon.

  • Can I find deals for business class flights from O'Hare Intl to Lisbon?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Lisbon?

    Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Lisbon (average of £448). Flying from Chicago O'Hare Intl Airport to Lisbon in June is currently the most expensive (average of £817). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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