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Cheap flights from Chicago Midway Airport to Porto from $347

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago Midway Airport to Porto departing on 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago Midway Airport to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:34 pm - 6:10 pm
MDW
-
OPO
17h 36m
2 stops
Delta Logo
5:00 am - 5:58 pm
OPO
-
MDW
18h 58m
2 stops
$595Delta
Sun, Apr 12 - Wed, Apr 22
Multiple Airlines Logo
6:34 pm - 3:25 pm
MDW
-
OPO
14h 51m
2 stops
Multiple Airlines Logo
5:00 am - 5:58 pm
OPO
-
MDW
18h 58m
2 stops
$616Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Delta Logo
6:34 pm - 6:10 pm
MDW
-
OPO
17h 36m
2 stops
Delta Logo
6:15 am - 5:58 pm
OPO
-
MDW
17h 43m
2 stops
$628Delta
Sun, Apr 12 - Tue, Apr 21
Delta Logo
7:16 pm - 6:20 pm
MDW
-
OPO
17h 04m
2 stops
Delta Logo
5:00 am - 5:58 pm
OPO
-
MDW
18h 58m
2 stops
$646Delta
Tue, Apr 28 - Tue, May 5
Delta Logo
6:34 pm - 3:25 pm
MDW
-
OPO
14h 51m
2 stops
Delta Logo
6:15 am - 5:58 pm
OPO
-
MDW
17h 43m
2 stops
$648Delta
Tue, Apr 7 - Tue, Apr 14
Delta Logo
7:16 pm - 5:55 pm
MDW
-
OPO
16h 39m
2 stops
Delta Logo
6:30 am - 5:58 pm
OPO
-
MDW
17h 28m
2 stops
$678Delta
Mon, Apr 27 - Mon, May 4
Delta Logo
7:16 pm - 5:55 pm
MDW
-
OPO
16h 39m
2 stops
Delta Logo
6:15 am - 5:58 pm
OPO
-
MDW
17h 43m
2 stops
$679Delta
Mon, Apr 13 - Tue, Apr 21
Delta Logo
6:34 pm - 3:25 pm
MDW
-
OPO
14h 51m
2 stops
Delta Logo
5:00 am - 5:58 pm
OPO
-
MDW
18h 58m
2 stops
$691Delta
Sun, Apr 12 - Mon, Apr 20
Delta Logo
9:29 am - 10:40 am
MDW
-
OPO
19h 11m
2 stops
Delta Logo
5:00 am - 5:58 pm
OPO
-
MDW
18h 58m
2 stops
$696Delta
Wed, Apr 22 - Mon, Apr 27
KLM Logo
1:29 pm - 10:30 am
MDW
-
OPO
15h 01m
2 stops
KLM Logo
5:00 am - 5:54 pm
OPO
-
MDW
17h 54m
2 stops
$709KLM
Wed, Mar 4 - Wed, Mar 11

Delta flights from Chicago Midway Airport to Porto

Our best Delta deals on Chicago Midway Airport to Porto flight tickets
Delta
Apr 12
MDW6:34 pmChicago Midway
17h 36m
2 stops
OPO6:10 pmPorto
Apr 22
OPO5:00 amPorto
18h 58m
2 stops
MDW5:58 pmChicago Midway
$595
Delta
Apr 12
MDW6:34 pmChicago Midway
17h 36m
2 stops
OPO6:10 pmPorto
Apr 21
OPO6:15 amPorto
17h 43m
2 stops
MDW5:58 pmChicago Midway
$628
Delta
Apr 28
MDW7:16 pmChicago Midway
17h 04m
2 stops
OPO6:20 pmPorto
May 5
OPO5:00 amPorto
18h 58m
2 stops
MDW5:58 pmChicago Midway
$646

KLM flights from Chicago Midway Airport to Porto

Our best KLM deals on Chicago Midway Airport to Porto flight tickets
KLM
Mar 4
MDW1:29 pmChicago Midway
15h 01m
2 stops
OPO10:30 amPorto
Mar 11
OPO5:00 amPorto
17h 54m
2 stops
MDW5:54 pmChicago Midway
$709
KLM
Mar 15
MDW6:34 pmChicago Midway
15h 51m
2 stops
OPO3:25 pmPorto
Mar 25
OPO5:00 amPorto
17h 54m
2 stops
MDW5:54 pmChicago Midway
$1,144
KLM
Feb 24
MDW1:26 pmChicago Midway
15h 04m
2 stops
OPO10:30 amPorto
Feb 26
OPO5:00 amPorto
18h 37m
2 stops
MDW5:37 pmChicago Midway
$2,789

momondo Fare Finder

 
Customize your flight search to find flights from Chicago Midway Airport to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 22, 2026.
Use the filters below to find and compare flights from Chicago Midway Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sun 4/12

6:34 pm-6:10 pm

2 stops17h 36m

Porto

Wed 4/22

5:00 am-5:58 pm

2 stops18h 58m

$595

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Wed 4/8

6:34 pm-3:25 pm

2 stops14h 51m

Porto

Wed 4/15

5:00 am-5:58 pm

2 stops18h 58m

$616

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sun 4/12

6:34 pm-6:10 pm

2 stops17h 36m

Porto

Tue 4/21

6:15 am-5:58 pm

2 stops17h 43m

$628

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Tue 4/28

7:16 pm-6:20 pm

2 stops17h 04m

Porto

Tue 5/5

5:00 am-5:58 pm

2 stops18h 58m

$646

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Tue 4/7

6:34 pm-3:25 pm

2 stops14h 51m

Porto

Tue 4/14

6:15 am-5:58 pm

2 stops17h 43m

$648

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Mon 4/27

7:16 pm-5:55 pm

2 stops16h 39m

Porto

Mon 5/4

6:30 am-5:58 pm

2 stops17h 28m

$678

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Mon 4/13

7:16 pm-5:55 pm

2 stops16h 39m

Porto

Tue 4/21

6:15 am-5:58 pm

2 stops17h 43m

$679

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sun 4/12

6:34 pm-3:25 pm

2 stops14h 51m

Porto

Mon 4/20

5:00 am-5:58 pm

2 stops18h 58m

$691

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Wed 4/22

9:29 am-10:40 am

2 stops19h 11m

Porto

Mon 4/27

5:00 am-5:58 pm

2 stops18h 58m

$696

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Wed 3/4

1:29 pm-10:30 am

2 stops15h 01m

Porto

Wed 3/11

5:00 am-5:54 pm

2 stops17h 54m

$709

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Chicago Midway Airport to Porto

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

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

KLM is the most popular carrier operating from Chicago Midway to Porto

When to book flights from Chicago Midway Airport to Porto

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

Cheap Chicago Midway Airport to Porto (MDW to OPO) flight deals and tips

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

Fastest flight time

14h 20m

Direct flights

None
The fastest flight from Chicago Midway Airport to Porto takes 14h 20m
There are no direct flights from Chicago Midway Airport to Porto. There are no popular flight routes from Chicago Midway Airport to Porto.
Search flight deals

  • How far is Chicago Midway to Porto by plane?

    The straight-line distance from Chicago Midway to Porto is 3936.0 mi. 14h 20m is a normal flight duration for this route.

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

    Prices for flights from Chicago Midway Airport to Porto Airport are refreshed on a daily basis.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago Midway Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Matosinhos
Braga
Aveiro
Esposende
Lamego
Guimarães
Pinhao
Chaves
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Porto for you.

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

Flights from Chicago to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Porto.

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

If you are simply researching potential flights to Porto, momondo offers a useful price alert feature which will track prices for flights to Porto from Chicago and alert you when they change.

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