Find Cheap Flights from Porto to Chicago (OPO - CHI)

Flights overview

Useful information for finding cheap flights from Porto to Chicago and booking your next trip

Cheapest round-trip flights	$908	Lufthansa, United 1 stop 15 hr Thu, May 21 — Wed, Jun 3	The cheapest round-trip flight from Porto to Chicago is currently $908
Cheapest one-way flight	$486	Iberia 1 stop 13 hr Wed, May 20	The cheapest one-way flight from Porto to Chicago is currently $486
Last-minute weekend getaway	$949	KLM 1 stop 16 hr Thu, May 7 — Sun, May 10	The cheapest last-minute weekend getaway from Porto to Chicago is currently $949
Cheapest business class flights	$2,721	Tap Air Portugal 1 stop 14 hr Thu, Jul 30 — Sat, Aug 15	The cheapest business class round-trip flight from Porto to Chicago is currently $2,721

Fastest flight	11 hr 40 min	The fastest flight with stops from Porto to Chicago takes 11 hr 40 min
Nonstop flights	None	There are no direct flights on this route.

When is the cheapest time to fly?

The cheapest month to fly from Porto to Chicago is typically February. The most expensive month to fly is typically July.

February Cheapest	Typical prices: $580–830
July Most expensive	Typical prices: $910–1,100

Popular airlines from Porto to Chicago

United

from $908

Typical price: $800–1,350

30 weekly connecting flights

OPO - ORD Every day
Tap Air Portugal

from $1,007

Typical price: $940–2,050

24 weekly connecting flights

OPO - ORD Every Tue, Wed, Thu, Fri, Sat, Sun
Lufthansa

from $913

Typical price: $810–1,450

22 weekly connecting flights

OPO - ORD Every day
Turkish Airlines

from $921

Typical price: $830–1,850

21 weekly connecting flights

OPO - ORD Every day
Iberia

from $1,136

Typical price: $850–1,800

14 weekly connecting flights

OPO - ORD Every day
SWISS

from $963

Typical price: $860–1,500

12 weekly connecting flights

OPO - ORD Every day

Popular airports near Porto

Francisco Sá Carneiro Airport (OPO)

Porto Portugal 17 min 6 mi
Humberto Delgado Airport (LIS)

Lisbon Portugal 2 hr 55 min 167 mi
Santiago-Rosalía de Castro Airport (SCQ)

Santiago de Compostela Spain 2 hr 31 min 120 mi
Vigo Airport (VGO)

Vigo Spain 1 hr 29 min 73 mi

Popular airports near Chicago

Chicago O'Hare International Airport (ORD)

Chicago United States 26 min 16 mi
Chicago Midway International Airport (MDW)

Chicago United States 25 min 9 mi
Milwaukee Mitchell International Airport (MKE)

Milwaukee United States 1 hr 23 min 75 mi
Indianapolis International Airport (IND)

Indianapolis United States 2 hr 58 min 165 mi

Frequently asked questions about flying from Porto to Chicago

The cheapest flights from Porto to Chicago are usually in February. Typical ticket prices in February range from $580 to $830.

The cheapest round-trip flight from Porto to Chicago recently found on Google Flights was with Lufthansa, United from $908. The cheapest one-way flight was with Iberia from $486.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Porto to Chicago is $908, flying from May 21 to Jun 3.
The cheapest Tap Air Portugal flight from Porto to Chicago is $1,007, flying from Jul 9 to Jul 25.
The cheapest Lufthansa flight from Porto to Chicago is $913, flying from Jun 6 to Jun 22.
The cheapest Turkish Airlines flight from Porto to Chicago is $921, flying from Jul 6 to Jul 19.
The cheapest Iberia flight from Porto to Chicago is $1,136, flying from Jul 17 to Jul 31.
The cheapest SWISS flight from Porto to Chicago is $963, flying from May 24 to Jun 9.

The cheapest round-trip flight from Porto to Chicago starts at $908 from Thu, May 21 to Wed, Jun 3. The cheapest one-way flight starts at $486 and departs on Wed, May 20.

11 hr 40 min is the shortest flight time from Porto to Chicago.

Chicago's peak season is Jun–Aug. Popular events throughout year include St. Patrick's Day, when the river is tinted green (Mar 17); the Pride Parade (Jun); the Taste of Chicago culinary festival (Jul) and the Jazz Festival (Sep). During the holiday season (Nov–Dec), the Magnificent Mile Lights Festival and Christkindlmarket, a German Christmas market in Daley Plaza, draw crowds to the city.

It's easy to use Google Flights to find the cheapest days to fly from Porto to Chicago.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Porto to Chicago really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Porto to Chicago.

In terms of flights, United is the most popular. United offers 30 connecting flights per week. United flies from Francisco Sá Carneiro Airport (OPO) to Chicago O'Hare International Airport (ORD) .

Other popular airlines flying from Porto to Chicago are:

Tap Air Portugal offers 24 connecting flights per week. Tap Air Portugal flies from Francisco Sá Carneiro Airport (OPO) to Chicago O'Hare International Airport (ORD) .
Lufthansa offers 22 connecting flights per week. Lufthansa flies from Francisco Sá Carneiro Airport (OPO) to Chicago O'Hare International Airport (ORD) .
Turkish Airlines offers 21 connecting flights per week. Turkish Airlines flies from Francisco Sá Carneiro Airport (OPO) to Chicago O'Hare International Airport (ORD) .
Iberia offers 14 connecting flights per week. Iberia flies from Francisco Sá Carneiro Airport (OPO) to Chicago O'Hare International Airport (ORD) .
SWISS offers 12 connecting flights per week. SWISS flies from Francisco Sá Carneiro Airport (OPO) to Chicago O'Hare International Airport (ORD) .

The number of connecting flights refers to distinct flights with at least one stop between Porto and Chicago.

The cheapest round-trip flight from Porto to Chicago recently found on Google Flights was with Lufthansa, United from $908. The cheapest one-way flight was with Iberia from $486.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Porto to Chicago is $908, flying from May 21 to Jun 3.
The cheapest Tap Air Portugal flight from Porto to Chicago is $1,007, flying from Jul 9 to Jul 25.
The cheapest Lufthansa flight from Porto to Chicago is $913, flying from Jun 6 to Jun 22.
The cheapest Turkish Airlines flight from Porto to Chicago is $921, flying from Jul 6 to Jul 19.
The cheapest Iberia flight from Porto to Chicago is $1,136, flying from Jul 17 to Jul 31.
The cheapest SWISS flight from Porto to Chicago is $963, flying from May 24 to Jun 9.

No airline flies direct from Porto to Chicago.

There are 30 United connecting flights from Porto to Chicago per week. Flights are available every day.
There are 24 Tap Air Portugal connecting flights from Porto to Chicago per week. Flights are available on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
There are 22 Lufthansa connecting flights from Porto to Chicago per week. Flights are available every day.
There are 21 Turkish Airlines connecting flights from Porto to Chicago per week. Flights are available every day.
There are 14 Iberia connecting flights from Porto to Chicago per week. Flights are available every day.
There are 12 SWISS connecting flights from Porto to Chicago per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Porto and Chicago at price $949 is offered by KLM from Thu, May 7 to Sun, May 10.

No airline flies direct from Porto to Chicago.

There are 30 United connecting flights from Porto to Chicago per week. Flights are available every day.
There are 24 Tap Air Portugal connecting flights from Porto to Chicago per week. Flights are available on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
There are 22 Lufthansa connecting flights from Porto to Chicago per week. Flights are available every day.
There are 21 Turkish Airlines connecting flights from Porto to Chicago per week. Flights are available every day.
There are 14 Iberia connecting flights from Porto to Chicago per week. Flights are available every day.
There are 12 SWISS connecting flights from Porto to Chicago per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are no direct flights from Porto to Chicago.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Porto to Chicago, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Porto and Chicago start at $2,721 from Thu, Jul 30 to Sat, Aug 15 with Tap Air Portugal.

The cheapest economy class round-trip flights between Porto and Chicago start at $908 from Thu, May 21 to Wed, Jun 3.

To book business class trips from Porto to Chicago, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Porto and Chicago starts at $949 from Thu, May 7 to Sun, May 10 with KLM.

The cheapest last-minute deal between Porto and Chicago at price $949 is offered by KLM from Thu, May 7 to Sun, May 10.

To find last-minute flight deals from Porto to Chicago, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.