What is the cheapest airline that flies from Porto to Chicago?

TAP AIR PORTUGAL is the most popular carrier operating from Porto to Chicago

When did momondo last update prices for flights from Porto Airport to Chicago?

Prices for flights from Porto Airport to Chicago were last updated today.

How old do you have to be to fly from Porto Airport to Chicago?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Chicago.

What documentation or ID do you need to fly to Chicago?

The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$407 Cheap Flights from Porto to Chicago in 2025/26

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Find the cheapest flights from Porto to Chicago

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One-way

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Cheap round-trip flights

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6:00 pm - 3:25 pm

OPO

ORD

27h 25m1 stop

7:10 pm - 10:00 pm

ORD

OPO

20h 50m1 stop

$581TAP AIR PORTUGAL

jue., ene. 15 - mié., ene. 28

1:00 pm - 4:45 pm

OPO

ORD

33h 45m2 stops

7:20 pm - 9:15 pm

ORD

OPO

19h 55m2 stops

$609Multiple Airlines

jue., ene. 15 - mié., ene. 28

1:00 pm - 4:45 pm

OPO

ORD

33h 45m2 stops

7:20 pm - 9:15 pm

ORD

OPO

19h 55m2 stops

$612Multiple Airlines

jue., ene. 15 - mié., ene. 28

12:05 pm - 4:45 pm

OPO

ORD

34h 40m3 stops

7:20 pm - 9:15 pm

ORD

OPO

19h 55m2 stops

$625Multiple Airlines

jue., ene. 15 - mié., ene. 28

1:00 pm - 4:45 pm

OPO

ORD

33h 45m2 stops

7:20 pm - 9:15 pm

ORD

OPO

19h 55m2 stops

$627Multiple Airlines

jue., ene. 15 - mié., ene. 28

6:35 am - 10:42 pm

OPO

ORD

46h 07m3 stops

6:30 pm - 10:30 pm

ORD

OPO

22h 00m3 stops

$666Multiple Airlines

jue., ene. 15 - mié., ene. 28

11:35 am - 8:18 am

OPO

ORD

26h 43m2 stops

6:30 pm - 10:45 pm

ORD

OPO

22h 15m3 stops

$689Multiple Airlines

lun., ene. 12 - dom., ene. 25

9:55 pm - 10:42 pm

OPO

ORD

30h 47m3 stops

6:30 pm - 10:30 pm

ORD

OPO

22h 00m3 stops

$694Multiple Airlines

jue., ene. 15 - mié., ene. 28

5:10 pm - 2:45 pm

OPO

ORD

27h 35m2 stops

4:38 pm - 2:55 pm

ORD

OPO

16h 17m2 stops

$701Multiple Airlines

sáb., ene. 31 - sáb., feb. 7

5:10 pm - 2:45 pm

OPO

ORD

27h 35m2 stops

6:30 pm - 8:10 am

ORD

OPO

31h 40m3 stops

$704Multiple Airlines

sáb., ene. 31 - sáb., feb. 7

TAP AIR PORTUGAL flights from Porto to Chicago

Our best TAP AIR PORTUGAL deals on Porto to Chicago flight tickets

TAP AIR PORTUGAL

Jan 15

OPO6:00 pmPorto

27h 25m

1 stop

ORD3:25 pmChicago O'Hare Intl

Jan 28

ORD7:10 pmChicago O'Hare Intl

20h 50m

1 stop

OPO10:00 pmPorto

$581

Find similar

TAP AIR PORTUGAL

Dec 26

OPO9:00 amPorto

12h 25m

1 stop

ORD3:25 pmChicago O'Hare Intl

Jan 21

ORD7:10 pmChicago O'Hare Intl

16h 50m

1 stop

OPO6:00 pmPorto

$726

Find similar

TAP AIR PORTUGAL

Dec 24

OPO8:55 amPorto

12h 05m

1 stop

ORD3:00 pmChicago O'Hare Intl

Jan 21

ORD7:10 pmChicago O'Hare Intl

11h 55m

1 stop

OPO1:05 pmPorto

$782

Find similar

British Airways flights from Porto to Chicago

Our best British Airways deals on Porto to Chicago flight tickets

British Airways

Jan 15

OPO8:20 amPorto

17h 55m

2 stops

ORD8:15 pmChicago O'Hare Intl

Jan 28

ORD6:45 pmChicago O'Hare Intl

16h 00m

1 stop

OPO4:45 pmPorto

$812

Find similar

British Airways

Dec 24

OPO8:20 amPorto

12h 35m

1 stop

ORD2:55 pmChicago O'Hare Intl

Jan 21

ORD8:45 pmChicago O'Hare Intl

14h 00m

1 stop

OPO4:45 pmPorto

$1,536

Find similar

British Airways

Dec 23

OPO12:25 pmPorto

32h 30m

1 stop

ORD2:55 pmChicago O'Hare Intl

Jan 18

ORD8:45 pmChicago O'Hare Intl

13h 55m

1 stop

OPO4:40 pmPorto

$1,546

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 1/15

6:00 pm-3:25 pm

1 stop27h 25m

Chicago O'Hare Intl

mié. 1/28

7:10 pm-10:00 pm

1 stop20h 50m

$581

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 1/15

1:00 pm-4:45 pm

2 stops33h 45m

Chicago O'Hare Intl

mié. 1/28

7:20 pm-9:15 pm

2 stops19h 55m

$609

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 1/15

1:00 pm-4:45 pm

2 stops33h 45m

Chicago O'Hare Intl

mié. 1/28

7:20 pm-9:15 pm

2 stops19h 55m

$612

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 1/15

12:05 pm-4:45 pm

3 stops34h 40m

Chicago O'Hare Intl

mié. 1/28

7:20 pm-9:15 pm

2 stops19h 55m

$625

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 1/15

1:00 pm-4:45 pm

2 stops33h 45m

Chicago O'Hare Intl

mié. 1/28

7:20 pm-9:15 pm

2 stops19h 55m

$627

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 1/15

6:35 am-10:42 pm

3 stops46h 07m

Chicago O'Hare Intl

mié. 1/28

6:30 pm-10:30 pm

3 stops22h 00m

$666

PortoChicago

OPO - ORD

OPOORD

Porto

lun. 1/12

11:35 am-8:18 am

2 stops26h 43m

Chicago O'Hare Intl

dom. 1/25

6:30 pm-10:45 pm

3 stops22h 15m

$689

PortoChicago

OPO - ORD

OPOORD

Porto

jue. 1/15

9:55 pm-10:42 pm

3 stops30h 47m

Chicago O'Hare Intl

mié. 1/28

6:30 pm-10:30 pm

3 stops22h 00m

$694

PortoChicago

OPO - ORD

OPOORD

Porto

sáb. 1/31

5:10 pm-2:45 pm

2 stops27h 35m

Chicago O'Hare Intl

sáb. 2/7

4:38 pm-2:55 pm

2 stops16h 17m

$701

PortoChicago

OPO - ORD

OPOORD

Porto

sáb. 1/31

5:10 pm-2:45 pm

2 stops27h 35m

Chicago O'Hare Intl

sáb. 2/7

6:30 pm-8:10 am

3 stops31h 40m

$704

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Porto to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Saturday when prices can be found for as low as $581. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Porto to Chicago for around $956.

When to book flights from Porto to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Porto to Chicago (OPO to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Chicago

Fastest flight time	12h 25m
Direct flights	None

The fastest flight from Porto to Chicago takes 12h 25m

There are no direct flights from Porto to Chicago. There are no popular flight routes from Porto to Chicago.

Search flight deals

How far is Porto to Chicago by plane?
Porto and Chicago are 3927.7 mi apart from one another. By plane, this route typically takes 12h 25m.
When did momondo last update prices for flights from Porto Airport to Chicago?
Prices for flights from Porto Airport to Chicago were last updated today.
How old do you have to be to fly from Porto Airport to Chicago?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Valparaiso

Schererville

Crown Point

Munster

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Chicago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from Porto.

Can I find flights from Porto to Chicago with flexible booking policies on momondo?

All flight searches from Porto to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Porto to Chicago?

momondo helps you find the best flight between Porto and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Porto to Chicago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Porto to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.