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Cheap flights from Chicago Midway Airport to Porto from $333

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 9/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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
1:00 pm - 10:35 am
MDW
-
OPO
15h 35m
2 stops
Delta Logo
5:00 am - 10:10 pm
OPO
-
MDW
23h 10m
2 stops
$824Delta
Sat, Jan 16 - Fri, Jan 22
Delta Logo
12:28 pm - 10:35 am
MDW
-
OPO
16h 07m
2 stops
Delta Logo
5:55 am - 6:05 pm
OPO
-
MDW
18h 10m
2 stops
$831Delta
Sun, Nov 1 - Sun, Nov 8
Multiple Airlines Logo
1:05 pm - 9:05 am
MDW
-
OPO
14h 00m
2 stops
Multiple Airlines Logo
5:55 am - 4:50 pm
OPO
-
MDW
16h 55m
2 stops
$832Multiple Airlines
Sun, Nov 15 - Sun, Nov 22
Delta Logo
12:28 pm - 10:35 am
MDW
-
OPO
16h 07m
2 stops
Delta Logo
5:00 am - 4:50 pm
OPO
-
MDW
17h 50m
2 stops
$874Delta
Fri, Nov 6 - Sat, Nov 14
Delta Logo
6:00 am - 9:05 am
MDW
-
OPO
21h 05m
2 stops
Delta Logo
5:00 am - 6:37 pm
OPO
-
MDW
19h 37m
2 stops
$875Delta
Fri, Dec 4 - Sat, Dec 12
KLM Logo
1:00 pm - 10:30 am
MDW
-
OPO
15h 30m
2 stops
KLM Logo
5:00 am - 4:25 pm
OPO
-
MDW
17h 25m
2 stops
$879KLM
Sat, Jan 16 - Sat, Jan 23
Multiple Airlines Logo
1:00 pm - 10:30 am
MDW
-
OPO
15h 30m
2 stops
Multiple Airlines Logo
5:55 am - 4:50 pm
OPO
-
MDW
16h 55m
2 stops
$886Multiple Airlines
Sat, Jan 16 - Sun, Jan 24
Delta Logo
7:25 pm - 3:30 pm
MDW
-
OPO
14h 05m
2 stops
Delta Logo
5:00 am - 4:50 pm
OPO
-
MDW
17h 50m
2 stops
$898Delta
Sun, Aug 30 - Wed, Dec 9
Delta Logo
7:25 pm - 3:30 pm
MDW
-
OPO
14h 05m
2 stops
Delta Logo
5:00 am - 4:50 pm
OPO
-
MDW
17h 50m
2 stops
$899Delta
Sun, Aug 30 - Wed, Dec 9
Delta Logo
5:21 pm - 3:30 pm
MDW
-
OPO
16h 09m
2 stops
Delta Logo
5:00 am - 6:05 pm
OPO
-
MDW
19h 05m
2 stops
$951Delta
Wed, Oct 14 - Sun, Oct 18

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KLM flights from Chicago Midway Airport to Porto

Our best KLM deals on Chicago Midway Airport to Porto flight tickets
KLM
Jan 16
MDW1:00 pmChicago Midway
15h 30m
2 stops
OPO10:30 amPorto
Jan 23
OPO5:00 amPorto
17h 25m
2 stops
MDW4:25 pmChicago Midway
$879
KLM
Aug 20
MDW6:42 pmChicago Midway
14h 48m
2 stops
OPO3:30 pmPorto
Sep 4
OPO12:45 pmPorto
15h 51m
2 stops
MDW10:36 pmChicago Midway
$1,041
KLM
Oct 7
MDW6:45 pmChicago Midway
14h 45m
2 stops
OPO3:30 pmPorto
Oct 14
OPO5:55 amPorto
16h 25m
2 stops
MDW4:20 pmChicago Midway
$1,120

Delta flights from Chicago Midway Airport to Porto

Our best Delta deals on Chicago Midway Airport to Porto flight tickets
Delta
Jan 16
MDW1:00 pmChicago Midway
15h 35m
2 stops
OPO10:35 amPorto
Jan 22
OPO5:00 amPorto
23h 10m
2 stops
MDW10:10 pmChicago Midway
$824
Delta
Nov 1
MDW12:28 pmChicago Midway
16h 07m
2 stops
OPO10:35 amPorto
Nov 8
OPO5:55 amPorto
18h 10m
2 stops
MDW6:05 pmChicago Midway
$831
Delta
Nov 6
MDW12:28 pmChicago Midway
16h 07m
2 stops
OPO10:35 amPorto
Nov 14
OPO5:00 amPorto
17h 50m
2 stops
MDW4:50 pmChicago Midway
$874

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 July 20, 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

Cheapest round-trip

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sat 1/16

1:00 pm-10:35 am

2 stops15h 35m

Porto

Fri 1/22

5:00 am-10:10 pm

2 stops23h 10m

$824

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sun 11/1

12:28 pm-10:35 am

2 stops16h 07m

Porto

Sun 11/8

5:55 am-6:05 pm

2 stops18h 10m

$831
Quickest round-trip

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sun 11/15

1:05 pm-9:05 am

2 stops14h 00m

Porto

Sun 11/22

5:55 am-4:50 pm

2 stops16h 55m

$832

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Fri 11/6

12:28 pm-10:35 am

2 stops16h 07m

Porto

Sat 11/14

5:00 am-4:50 pm

2 stops17h 50m

$874

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Fri 12/4

6:00 am-9:05 am

2 stops21h 05m

Porto

Sat 12/12

5:00 am-6:37 pm

2 stops19h 37m

$875

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sat 1/16

1:00 pm-10:30 am

2 stops15h 30m

Porto

Sat 1/23

5:00 am-4:25 pm

2 stops17h 25m

$879

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sat 1/16

1:00 pm-10:30 am

2 stops15h 30m

Porto

Sun 1/24

5:55 am-4:50 pm

2 stops16h 55m

$886

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sun 8/30

7:25 pm-3:30 pm

2 stops14h 05m

Porto

Wed 12/9

5:00 am-4:50 pm

2 stops17h 50m

$898

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sun 8/30

7:25 pm-3:30 pm

2 stops14h 05m

Porto

Wed 12/9

5:00 am-4:50 pm

2 stops17h 50m

$899

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Wed 10/14

5:21 pm-3:30 pm

2 stops16h 09m

Porto

Sun 10/18

5:00 am-6:05 pm

2 stops19h 05m

$951

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?

Delta 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 29m

Direct flights

None
The fastest flight from Chicago Midway Airport to Porto takes 14h 29m
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

Frequently asked questions about flying from Chicago Midway Airport to Porto

  • How far is Chicago Midway to Porto by plane?

    The straight-line distance from Chicago Midway to Porto is 3936.0 mi. 14h 29m 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
Braga
Aveiro
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
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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