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$363+ Cheap flights from Midway (MDW) to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — OPO
Mar 18 — Mar 251
Wed 3/18
Wed 3/25
1 adult, Economy
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Cheap flight deals from Midway to Porto

Cheapest flights from Midway to Porto
Explore the most affordable flight options available from Midway to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 16, 2026.

This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:38 pm
MDW
-
OPO
2 stops17h 17m
Delta
Thu 4/305:00 am
OPO
-
MDW
2 stops18h 58m
Delta
Deal found 2/13$652
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:34 pm
MDW
-
OPO
2 stops14h 51m
Delta
Tue 4/215:00 am
OPO
-
MDW
2 stops19h 36m
Delta
Deal found 2/12$669
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/410:49 am
MDW
-
OPO
2 stops17h 41m
Delta
Wed 3/115:00 am
OPO
-
MDW
2 stops17h 22m
Delta
Deal found 2/14$704
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:24 pm
MDW
-
OPO
2 stops20h 01m
Delta
Mon 4/275:00 am
OPO
-
MDW
2 stops18h 58m
Delta
Deal found 2/14$746
This BusinessClass deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:21 pm
MDW
-
OPO
2 stops22h 39m
Scandinavian Airlines
Fri 5/155:55 am
OPO
-
MDW
2 stops21h 14m
Scandinavian Airlines
Deal found 2/12$758
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:34 am
MDW
-
OPO
2 stops18h 56m
Delta
Sat 2/285:00 am
OPO
-
MDW
2 stops17h 14m
Delta
Deal found 2/16$804
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:35 am
MDW
-
OPO
2 stops29h 25m
Delta
Tue 9/811:35 am
OPO
-
MDW
2 stops34h 52m
Delta
Deal found 2/14$819
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:45 pm
MDW
-
OPO
2 stops33h 40m
Delta
Wed 9/911:45 am
OPO
-
MDW
2 stops36h 46m
Delta
Deal found 2/14$820
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:30 am
MDW
-
OPO
2 stops26h 25m
Delta
Fri 9/115:00 am
OPO
-
MDW
2 stops19h 31m
Delta
Deal found 2/14$825
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:43 am
MDW
-
OPO
2 stops15h 47m
Delta
Sat 5/166:30 am
OPO
-
MDW
2 stops17h 26m
Delta
Deal found 2/12$841
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:30 am
MDW
-
OPO
2 stops18h 40m
Multiple Airlines
Fri 5/156:05 pm
OPO
-
MDW
1 stop24h 55m
Multiple Airlines
Deal found 2/12$866

Find flight deals from Midway to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Midway (MDW) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$652
(Delta)

One-way from

$363
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$729
Provider with most accurate pricing for Chicago Midway-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago Midway-Porto flights.
Search Deals
From Chicago Midway to Porto
Search Deals
One-way flight from Chicago Midway to Porto
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Midway 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, Cheapflights users made 2,558,603 searches. Data last updated February 16, 2026.
Use the filters below to find and compare flights from Chicago Midway Airport to Porto that are best for you.

Fly from

Midway

Fly to

Porto

Route

Depart

Return

Price

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Mon 4/20

6:38 pm-5:55 pm

2 stops17h 17m

Porto

Thu 4/30

5:00 am-5:58 pm

2 stops18h 58m

$652

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Mon 4/6

6:34 pm-3:25 pm

2 stops14h 51m

Porto

Tue 4/21

5:00 am-6:36 pm

2 stops19h 36m

$669

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Wed 3/4

10:49 am-10:30 am

2 stops17h 41m

Porto

Wed 3/11

5:00 am-5:22 pm

2 stops17h 22m

$704

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Thu 4/23

1:24 pm-3:25 pm

2 stops20h 01m

Porto

Mon 4/27

5:00 am-5:58 pm

2 stops18h 58m

$746

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Fri 2/20

1:26 pm-10:30 am

2 stops15h 04m

Porto

Sat 2/28

5:00 am-4:14 pm

2 stops17h 14m

$804

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Fri 2/20

9:34 am-10:30 am

2 stops18h 56m

Porto

Sat 2/28

5:00 am-4:14 pm

2 stops17h 14m

$804

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Sat 5/2

10:43 am-8:30 am

2 stops15h 47m

Porto

Sat 5/16

6:30 am-5:56 pm

2 stops17h 26m

$841

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Wed 5/6

7:30 am-8:10 am

2 stops18h 40m

Porto

Fri 5/15

6:05 pm-1:00 pm

1 stop24h 55m

$866

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Tue 4/28

5:21 pm-3:15 pm

2 stops15h 54m

Porto

Sun 5/3

5:00 am-5:58 pm

2 stops18h 58m

$940

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Tue 3/17

7:30 am-5:30 pm

3 stops29h 00m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 16 results
1
2
  • Most accurate provider: When it comes to deals on Chicago Midway Airport-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago Midway Airport-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago Midway Airport-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago Midway Airport-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago Midway Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Midway to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Midway with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Midway to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Chicago Midway?

    Most people fly into Porto (OPO) if they book a flight to Porto from Chicago Midway. On average, Porto has 0 inbound flights from Chicago Midway per day from 0 airlines. Porto is conveniently located just 6.8 mi from Porto’s city center.

  • How long is the flight from Chicago Midway Airport to Porto?

    Airlines like Delta fly from Chicago Midway Airport to Porto in about 17h 17m. The time it takes to get you to your destination can typically vary by up to . The distance between Chicago Midway Airport and Porto is about 3931 mi.

  • Can I find deals for flights from Midway to Porto that include hotel bookings?

    Yes. In addition to deals on Midway to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Midway to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Midway to Porto.

  • Can I find deals for business class flights from Midway to Porto?

    Yes. Cheapflights offers flight deals from Midway to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

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