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Cheap flights from Michigan to Porto from $286

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Michigan to Porto departing on 9/15. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Michigan to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:00 pm - 8:35 pmORD  Chicago O'Hare Intl-OPO Porto
20h 35m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
10:30 pm - 4:00 pmOPO  Porto-ORD Chicago O'Hare Intl
23h 30m1 stop Lisbon Humberto Delgado
$624TAP AIR PORTUGAL
Sun, Sep 20 - Tue, Oct 6
TAP AIR PORTUGAL Logo
6:00 pm - 3:00 pmORD  Chicago O'Hare Intl-OPO Porto
15h 00m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
10:30 pm - 4:00 pmOPO  Porto-ORD Chicago O'Hare Intl
23h 30m1 stop Lisbon Humberto Delgado
$637TAP AIR PORTUGAL
Sun, Sep 20 - Tue, Oct 6
United Airlines Logo
1:55 pm - 9:30 amGRR  Grand Rapids Gerald R. Ford Intl-OPO Porto
14h 35m1 stop Newark
United Airlines Logo
12:35 pm - 9:34 amOPO  Porto-GRR Grand Rapids Gerald R. Ford Intl
25h 59m2 stops Frankfurt am Main Chicago O'Hare Intl
$745United Airlines
Wed, Dec 9 - Fri, Dec 11
Multiple Airlines Logo
1:55 pm - 11:50 amORD  Chicago O'Hare Intl-OPO Porto
15h 55m2 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National
Multiple Airlines Logo
12:05 pm - 7:52 pmOPO  Porto-ORD Chicago O'Hare Intl
37h 47m2 stops Zurich Montreal Pierre Elliott Trudeau Intl
$748Multiple Airlines
Wed, Jan 13 - Wed, Jan 20
Multiple Airlines Logo
7:25 pm - 8:15 pmORD  Chicago O'Hare Intl-OPO Porto
18h 50m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
6:30 pm - 6:15 pmOPO  Porto-ORD Chicago O'Hare Intl
29h 45m3 stops Oslo Gardermoen Gdansk Rebiechowo Reykjavik Keflavik Intl
$748Multiple Airlines
Mon, Oct 5 - Wed, Oct 14
Lufthansa Logo
9:50 pm - 11:55 pmORD  Chicago O'Hare Intl-OPO Porto
20h 05m1 stop Munich Franz Josef Strauss
Lufthansa Logo
1:45 pm - 6:25 pmOPO  Porto-ORD Chicago O'Hare Intl
34h 40m1 stop Munich Franz Josef Strauss
$751Lufthansa
Wed, Nov 11 - Mon, Nov 23
Turkish Airlines Logo
12:45 pm - 3:25 pmORD  Chicago O'Hare Intl-OPO Porto
21h 40m1 stop Istanbul
Turkish Airlines Logo
4:25 pm - 11:00 amOPO  Porto-ORD Chicago O'Hare Intl
24h 35m1 stop Istanbul
$753Turkish Airlines
Mon, Oct 26 - Fri, Nov 6
Turkish Airlines Logo
11:25 am - 3:40 pmORD  Chicago O'Hare Intl-OPO Porto
22h 15m1 stop Istanbul
Turkish Airlines Logo
4:40 pm - 9:40 amOPO  Porto-ORD Chicago O'Hare Intl
23h 00m1 stop Istanbul
$753Turkish Airlines
Tue, Oct 6 - Thu, Oct 22
United Airlines Logo
1:55 pm - 9:30 amGRR  Grand Rapids Gerald R. Ford Intl-OPO Porto
14h 35m1 stop Newark
United Airlines Logo
12:35 pm - 9:22 pmOPO  Porto-GRR Grand Rapids Gerald R. Ford Intl
13h 47m1 stop Newark
$754United Airlines
Wed, Dec 9 - Fri, Dec 11
Lufthansa Logo
2:10 pm - 3:20 pmGRR  Grand Rapids Gerald R. Ford Intl-OPO Porto
20h 10m2 stops Chicago O'Hare Intl Frankfurt am Main
Lufthansa Logo
6:00 am - 9:59 pmOPO  Porto-GRR Grand Rapids Gerald R. Ford Intl
20h 59m2 stops Frankfurt am Main Chicago O'Hare Intl
$791Lufthansa
Fri, Jan 8 - Fri, Jan 15

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Lufthansa flights from Michigan to Porto

Our best Lufthansa deals on Michigan to Porto flight tickets
Lufthansa
Nov 11
ORD9:50 pmChicago O'Hare Intl
20h 05m
1 stop
OPO11:55 pmPorto
Nov 23
OPO1:45 pmPorto
34h 40m
1 stop
ORD6:25 pmChicago O'Hare Intl
$751
Lufthansa
Jan 8
GRR2:10 pmGrand Rapids Gerald R. Ford Intl
20h 10m
2 stops
OPO3:20 pmPorto
Jan 15
OPO6:00 amPorto
20h 59m
2 stops
GRR9:59 pmGrand Rapids Gerald R. Ford Intl
$791
Lufthansa
Jan 30
GRR6:32 pmGrand Rapids Gerald R. Ford Intl
39h 48m
2 stops
OPO3:20 pmPorto
Feb 6
OPO6:00 amPorto
20h 59m
2 stops
GRR9:59 pmGrand Rapids Gerald R. Ford Intl
$796

Delta flights from Michigan to Porto

Our best Delta deals on Michigan to Porto flight tickets
Delta
Jan 13
ORD10:30 amChicago O'Hare Intl
18h 05m
2 stops
OPO10:35 amPorto
Jan 20
OPO5:00 amPorto
15h 25m
1 stop
ORD2:25 pmChicago O'Hare Intl
$765
Delta
Jan 13
ORD10:40 amChicago O'Hare Intl
17h 55m
2 stops
OPO10:35 amPorto
Jan 20
OPO5:00 amPorto
17h 49m
2 stops
ORD4:49 pmChicago O'Hare Intl
$775
Delta
Nov 24
ORD7:05 amChicago O'Hare Intl
21h 30m
2 stops
OPO10:35 amPorto
Nov 26
OPO11:00 amPorto
28h 22m
2 stops
ORD9:22 amChicago O'Hare Intl
$787

momondo Fare Finder

 
Customize your flight search to find flights from Michigan 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 August 15, 2026.
Use the filters below to find and compare flights from Michigan to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 9/20

6:00 pm-8:35 pm

1 stop20h 35m

Porto

Tue 10/6

10:30 pm-4:00 pm

1 stop23h 30m

$624

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Sun 9/20

6:00 pm-3:00 pm

1 stop15h 00m

Porto

Tue 10/6

10:30 pm-4:00 pm

1 stop23h 30m

$637

Grand RapidsPorto

GRR Grand Rapids Gerald R. Ford Intl - OPO Porto

GRROPO

Grand Rapids Gerald R. Ford Intl

Wed 12/9

1:55 pm-9:30 am

1 stop14h 35m

Porto

Fri 12/11

12:35 pm-9:34 am

2 stops25h 59m

$745

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 1/13

1:55 pm-11:50 am

2 stops15h 55m

Porto

Wed 1/20

12:05 pm-7:52 pm

2 stops37h 47m

$748

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 10/5

7:25 pm-8:15 pm

2 stops18h 50m

Porto

Wed 10/14

6:30 pm-6:15 pm

3 stops29h 45m

$748

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Wed 11/11

9:50 pm-11:55 pm

1 stop20h 05m

Porto

Mon 11/23

1:45 pm-6:25 pm

1 stop34h 40m

$751

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Mon 10/26

12:45 pm-3:25 pm

1 stop21h 40m

Porto

Fri 11/6

4:25 pm-11:00 am

1 stop24h 35m

$753

ChicagoPorto

ORD Chicago O'Hare Intl - OPO Porto

ORDOPO

Chicago O'Hare Intl

Tue 10/6

11:25 am-3:40 pm

1 stop22h 15m

Porto

Thu 10/22

4:40 pm-9:40 am

1 stop23h 00m

$753
Quickest round-trip

Grand RapidsPorto

GRR Grand Rapids Gerald R. Ford Intl - OPO Porto

GRROPO

Grand Rapids Gerald R. Ford Intl

Wed 12/9

1:55 pm-9:30 am

1 stop14h 35m

Porto

Fri 12/11

12:35 pm-9:22 pm

1 stop13h 47m

$754

Grand RapidsPorto

GRR Grand Rapids Gerald R. Ford Intl - OPO Porto

GRROPO

Grand Rapids Gerald R. Ford Intl

Fri 1/8

2:10 pm-3:20 pm

2 stops20h 10m

Porto

Fri 1/15

6:00 am-9:59 pm

2 stops20h 59m

$791

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 Michigan 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 month to fly to Porto?

The month of March is, on average, the cheapest month to fly to Porto from Michigan, with most prices found around $825. If you aren’t able to travel during the month of March, then book flights to Porto from Michigan during April instead. Flights to Porto in April, while not as cheap as those in March, still average around $863.

Can stopping save me money on Michigan to Porto flights?

You could potentially save up to 30% on your flight if you consider stops on a Michigan to Porto flight.

Cheap Michigan to Porto flight deals and tips

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

Fastest flight time

12h 50m

Direct flights

None
The fastest flight from Michigan to Porto takes 12h 50m
There are no direct flights from Michigan to Porto. There are no popular flight routes from Michigan to Porto.
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Frequently asked questions about flying from Michigan to Porto

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

    Prices for flights from Michigan to Porto Airport refresh daily.

  • How many operators does momondo search for flights from Michigan to Porto Airport?

  • How old do you have to be to fly from Michigan 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 Michigan to Porto Airport.

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

    The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Michigan to Porto

Compare and see reviews for airlines that fly from Michigan to Porto with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $528Free CancellationRating
7.8
1,559 reviews
Search KLM flights
LufthansaPriceFrom $547Free CancellationRating
6.8
8,194 reviews
Search Lufthansa flights
DeltaPriceFrom $561Free CancellationRating
7.8
8,508 reviews
Search Delta flights
United AirlinesPriceFrom $677Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights

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
Pinhao
Esposende
Chaves
Arcos de Valdevez
Viseu
Guimarães
Espinho
Lamego
Ponte de Lima
Mesao Frio
Penafiel
Caminha
Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Michigan 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 Michigan to Porto for you.

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

Flights from Michigan 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 Michigan to Porto?

Once you have performed a search for Michigan to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Michigan 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 Michigan and alert you when they change.

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