What is the cheapest airline that flies from Detroit to Portugal?

United Airlines, Aer Lingus, and Delta are the most popular carriers operating from Detroit to Portugal

What airlines fly to Portugal?

United Airlines, Delta and WestJet are the top three most popular airlines that fly to Portugal from Detroit according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 8 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Detroit to Portugal?

Prices for flights from Detroit to Portugal are updated daily.

How many operators does momondo search for flights from Detroit to Portugal?

There are 8 operators available for flights from Detroit to Portugal as of October 2026.

How old do you have to be to fly from Detroit to Portugal?

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 Detroit to Portugal.

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

The travel and health documents you'll need for your trip to Portugal 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 Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$345 Cheap Flights from Detroit to Portugal in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Detroit to Portugal

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 pm - 9:20 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

10h 00m1 stop Toronto Pearson Intl

12:50 pm - 11:57 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

16h 07m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$648Air Canada

Mon, Nov 2 - Tue, Nov 17

6:20 pm - 9:20 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

10h 00m1 stop Toronto Pearson Intl

5:00 am - 2:15 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

14h 15m1 stop Frankfurt am Main

$662Multiple Airlines

Mon, Nov 2 - Tue, Nov 17

6:20 pm - 9:20 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

10h 00m1 stop Toronto Pearson Intl

5:00 am - 5:40 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

17h 40m2 stops Frankfurt am Main Toronto Pearson Intl

$673Air Canada

Mon, Nov 2 - Tue, Nov 17

4:05 pm - 11:30 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

14h 25m1 stop Frankfurt am Main

5:00 am - 2:15 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

14h 15m1 stop Frankfurt am Main

$676Lufthansa

Mon, Nov 2 - Tue, Nov 17

4:05 pm - 3:25 pmDTW Detroit Metropolitan Wayne County-OPO Porto

18h 20m1 stop Frankfurt am Main

6:00 am - 2:15 pmOPO Porto-DTW Detroit Metropolitan Wayne County

13h 15m1 stop Frankfurt am Main

$680Lufthansa

Mon, Jan 11 - Thu, Jan 14

6:20 pm - 8:55 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

10h 35m1 stop Toronto Pearson Intl

5:00 am - 2:15 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

14h 15m1 stop Frankfurt am Main

$684Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

5:12 pm - 9:30 amDTW Detroit Metropolitan Wayne County-OPO Porto

11h 18m1 stop Newark

6:00 am - 2:15 pmOPO Porto-DTW Detroit Metropolitan Wayne County

13h 15m1 stop Frankfurt am Main

$695United Airlines

Sun, Nov 1 - Tue, Nov 17

6:15 am - 8:10 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

20h 55m2 stops Chicago O'Hare Intl Newark

5:00 am - 6:56 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

18h 56m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$703United Airlines

Mon, Nov 2 - Tue, Nov 17

7:50 pm - 3:25 pmDTW Detroit Metropolitan Wayne County-OPO Porto

14h 35m2 stops New York John F Kennedy Intl Amsterdam Schiphol

5:00 am - 1:16 pmOPO Porto-DTW Detroit Metropolitan Wayne County

13h 16m1 stop Amsterdam Schiphol

$703KLM

Sun, Jan 10 - Thu, Jan 14

7:50 pm - 3:25 pmDTW Detroit Metropolitan Wayne County-OPO Porto

14h 35m2 stops New York John F Kennedy Intl Amsterdam Schiphol

5:00 am - 3:38 pmOPO Porto-DTW Detroit Metropolitan Wayne County

15h 38m1 stop Amsterdam Schiphol

$703KLM

Mon, Jan 11 - Thu, Jan 14

Cheap last minute flights

Enter your travel dates to find the best prices.

4:00 pm - 3:35 pmDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

18h 35m1 stop Frankfurt am Main

4:20 pm - 1:55 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

26h 35m1 stop Frankfurt am Main

$879Lufthansa

Tue, Oct 6 - Tue, Oct 13

4:00 pm - 11:10 amDTW Detroit Metropolitan Wayne County-OPO Porto

14h 10m1 stop Frankfurt am Main

6:00 am - 1:55 pmOPO Porto-DTW Detroit Metropolitan Wayne County

12h 55m1 stop Frankfurt am Main

$926Lufthansa

Tue, Oct 6 - Tue, Oct 13

10:25 am - 11:25 amDTW Detroit Metropolitan Wayne County-OPO Porto

20h 00m2 stops Chicago O'Hare Intl Zurich

6:00 am - 1:55 pmOPO Porto-DTW Detroit Metropolitan Wayne County

12h 55m1 stop Frankfurt am Main

$933Multiple Airlines

Tue, Oct 6 - Tue, Oct 13

9:20 pm - 3:25 pmDTW Detroit Metropolitan Wayne County-OPO Porto

13h 05m1 stop Paris Charles de Gaulle

7:10 pm - 1:25 pmOPO Porto-DTW Detroit Metropolitan Wayne County

23h 15m1 stop Amsterdam Schiphol

$965KLM

Tue, Oct 6 - Wed, Oct 14

3:52 pm - 3:25 pmDTW Detroit Metropolitan Wayne County-OPO Porto

18h 33m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

5:00 am - 11:35 amOPO Porto-DTW Detroit Metropolitan Wayne County

11h 35m1 stop Amsterdam Schiphol

$970Delta

Tue, Oct 6 - Wed, Oct 14

4:41 pm - 3:25 pmDTW Detroit Metropolitan Wayne County-OPO Porto

17h 44m2 stops Cincinnati Cinci./N. Kentucky Paris Charles de Gaulle

5:00 am - 1:25 pmOPO Porto-DTW Detroit Metropolitan Wayne County

13h 25m1 stop Amsterdam Schiphol

$970Delta

Tue, Oct 6 - Wed, Oct 14

10:30 pm - 6:20 pmDTW Detroit Metropolitan Wayne County-OPO Porto

14h 50m1 stop Amsterdam Schiphol

5:00 am - 11:35 amOPO Porto-DTW Detroit Metropolitan Wayne County

11h 35m1 stop Amsterdam Schiphol

$970KLM

Tue, Oct 6 - Wed, Oct 14

10:25 am - 5:35 pmDTW Detroit Metropolitan Wayne County-OPO Porto

26h 10m2 stops Chicago O'Hare Intl Zurich

12:15 pm - 6:05 pmOPO Porto-DTW Detroit Metropolitan Wayne County

34h 50m2 stops Zurich Chicago O'Hare Intl

$980SWISS

Tue, Oct 6 - Tue, Oct 13

12:30 pm - 9:20 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

15h 50m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

5:05 am - 9:30 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

21h 25m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$1,031Air Canada

Tue, Oct 6 - Tue, Oct 13

11:15 am - 9:20 amDTW Detroit Metropolitan Wayne County-LIS Lisbon Humberto Delgado

17h 05m2 stops Newark Montreal Pierre Elliott Trudeau Intl

5:05 am - 9:30 pmLIS Lisbon Humberto Delgado-DTW Detroit Metropolitan Wayne County

21h 25m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$1,035Air Canada

Tue, Oct 6 - Wed, Oct 14

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Delta flights from Detroit to Portugal

Our best Delta deals on Detroit to Portugal flight tickets

Delta

Nov 18

DTW2:00 pmDetroit Metropolitan Wayne County

15h 35m

2 stops

OPO10:35 amPorto

Nov 25

OPO5:00 amPorto

13h 02m

1 stop

DTW1:02 pmDetroit Metropolitan Wayne County

$725

Delta

Jan 12

DTW9:25 pmDetroit Metropolitan Wayne County

12h 45m

1 stop

LIS3:10 pmLisbon Humberto Delgado

Jan 26

LIS5:00 amLisbon Humberto Delgado

17h 56m

1 stop

DTW5:56 pmDetroit Metropolitan Wayne County

$729

Delta

Nov 18

DTW2:00 pmDetroit Metropolitan Wayne County

15h 35m

2 stops

OPO10:35 amPorto

Nov 25

OPO11:15 amPorto

18h 42m

2 stops

DTW12:57 amDetroit Metropolitan Wayne County

$735

United Airlines flights from Detroit to Portugal

Our best United Airlines deals on Detroit to Portugal flight tickets

United Airlines

Nov 1

DTW5:12 pmDetroit Metropolitan Wayne County

11h 18m

1 stop

OPO9:30 amPorto

Nov 17

OPO6:00 amPorto

13h 15m

1 stop

DTW2:15 pmDetroit Metropolitan Wayne County

$695

United Airlines

Nov 3

DTW10:13 amDetroit Metropolitan Wayne County

18h 52m

1 stop

LIS10:05 amLisbon Humberto Delgado

Nov 20

LIS5:00 amLisbon Humberto Delgado

14h 15m

1 stop

DTW2:15 pmDetroit Metropolitan Wayne County

$703

United Airlines

Nov 3

DTW6:15 amDetroit Metropolitan Wayne County

20h 55m

2 stops

LIS8:10 amLisbon Humberto Delgado

Nov 10

LIS5:00 amLisbon Humberto Delgado

14h 15m

1 stop

DTW2:15 pmDetroit Metropolitan Wayne County

$708

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitLisbon

DTW Detroit Metropolitan Wayne County - LIS Lisbon Humberto Delgado

DTWLIS

Detroit Metropolitan Wayne County

Mon 11/2

6:20 pm-9:20 am

1 stop10h 00m

Lisbon Humberto Delgado

Tue 11/17

12:50 pm-11:57 pm

2 stops16h 07m

$648

Quickest round-trip

DetroitLisbon

DTW Detroit Metropolitan Wayne County - LIS Lisbon Humberto Delgado

DTWLIS

Detroit Metropolitan Wayne County

Mon 11/2

6:20 pm-9:20 am

1 stop10h 00m

Lisbon Humberto Delgado

Tue 11/17

5:00 am-2:15 pm

1 stop14h 15m

$662

DetroitLisbon

DTW Detroit Metropolitan Wayne County - LIS Lisbon Humberto Delgado

DTWLIS

Detroit Metropolitan Wayne County

Mon 11/2

6:20 pm-9:20 am

1 stop10h 00m

Lisbon Humberto Delgado

Tue 11/17

5:00 am-5:40 pm

2 stops17h 40m

$673

DetroitLisbon

DTW Detroit Metropolitan Wayne County - LIS Lisbon Humberto Delgado

DTWLIS

Detroit Metropolitan Wayne County

Mon 11/2

4:05 pm-11:30 am

1 stop14h 25m

Lisbon Humberto Delgado

Tue 11/17

5:00 am-2:15 pm

1 stop14h 15m

$676

DetroitPorto

DTW Detroit Metropolitan Wayne County - OPO Porto

DTWOPO

Detroit Metropolitan Wayne County

Mon 1/11

4:05 pm-3:25 pm

1 stop18h 20m

Porto

Thu 1/14

6:00 am-2:15 pm

1 stop13h 15m

$680

DetroitLisbon

DTW Detroit Metropolitan Wayne County - LIS Lisbon Humberto Delgado

DTWLIS

Detroit Metropolitan Wayne County

Wed 10/28

6:20 pm-8:55 am

1 stop10h 35m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-2:15 pm

1 stop14h 15m

$684

DetroitPorto

DTW Detroit Metropolitan Wayne County - OPO Porto

DTWOPO

Detroit Metropolitan Wayne County

Sun 11/1

5:12 pm-9:30 am

1 stop11h 18m

Porto

Tue 11/17

6:00 am-2:15 pm

1 stop13h 15m

$695

DetroitLisbon

DTW Detroit Metropolitan Wayne County - LIS Lisbon Humberto Delgado

DTWLIS

Detroit Metropolitan Wayne County

Mon 11/2

6:15 am-8:10 am

2 stops20h 55m

Lisbon Humberto Delgado

Tue 11/17

5:00 am-6:56 pm

2 stops18h 56m

$703

DetroitPorto

DTW Detroit Metropolitan Wayne County - OPO Porto

DTWOPO

Detroit Metropolitan Wayne County

Sun 1/10

7:50 pm-3:25 pm

2 stops14h 35m

Porto

Thu 1/14

5:00 am-1:16 pm

1 stop13h 16m

$703

DetroitPorto

DTW Detroit Metropolitan Wayne County - OPO Porto

DTWOPO

Detroit Metropolitan Wayne County

Mon 1/11

7:50 pm-3:25 pm

2 stops14h 35m

Porto

Thu 1/14

5:00 am-3:38 pm

1 stop15h 38m

$703

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Detroit to Portugal

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 month to fly to Portugal?

The cheapest month to fly to Portugal from Detroit is in November. Flight prices, which tend to average around $673, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Detroit during February instead. Flights to Portugal in February, while not as cheap as those in November, still average around $679.

How far in advance should I book a flight from Detroit to Portugal?

You are more likely to see cheaper flights to Portugal from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $873 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Detroit for as low as $705 on momondo.

Can stopping save me money on Detroit to Portugal flights?

You could potentially save up to 31% on your flight if you consider stops on a Detroit to Portugal flight.

Cheap Detroit to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to Portugal

Best Price Found	$345
Fastest flight time	10h 00m
Direct flights	None

The best one-way flight to Portugal from Detroit in the past 72 hours is $345. The best round-trip flight deal from Detroit to Portugal found on momondo in the last 72 hours is $648.

The fastest flight from Detroit to Portugal takes 10h 00m

There are no direct flights from Detroit to Portugal. There are no popular flight routes from Detroit to Portugal.

Search flight deals

Frequently asked questions about flying from Detroit to Portugal

When did momondo last update prices for flights from Detroit to Portugal?
Prices for flights from Detroit to Portugal are updated daily.
How many operators does momondo search for flights from Detroit to Portugal?
There are 8 operators available for flights from Detroit to Portugal as of October 2026.
How old do you have to be to fly from Detroit to Portugal?
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 Detroit to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents you'll need for your trip to Portugal 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 Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Detroit to Portugal

Compare and see reviews for airlines that fly from Detroit to Portugal with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $508	Free Cancellation	Rating 6.8 8,256 reviews	Search Lufthansa flights
WestJet	PriceFrom $522	Free Cancellation	Rating 7.2 3,448 reviews	Search WestJet flights
KLM	PriceFrom $528	Free Cancellation	Rating 7.8 1,577 reviews	Search KLM flights
Delta	PriceFrom $571	Free Cancellation	Rating 7.8 8,628 reviews	Search Delta flights
United Airlines	PriceFrom $584	Free Cancellation	Rating 7.4 10,283 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $597	Free Cancellation	Rating 7.4 4,452 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $614	Free Cancellation	Rating 7.1 11,722 reviews	Search Air Canada flights
British Airways	PriceFrom $672	Free Cancellation	Rating 6.7 8,244 reviews	Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to Portugal?

It is quick and easy to find Detroit to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from Detroit to Portugal with flexible booking policies on momondo?

Yes. All flights to Portugal from Detroit on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Detroit to Portugal?

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 Detroit to Portugal.

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

If you are not ready to book a flight from Detroit to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities

Other flights from Detroit

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Airlines

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $396

Flights to Portofrom $406

Flights to Funchalfrom $418

Flights to Farofrom $407

Flights to Ponta Delgadafrom $557

Flights to Lajesfrom $571

Flights to Hortafrom $585

Flights to Pico Islandfrom $812

Flights to Porto Santofrom $935

Flights to Velasfrom $578

Cheap flights from Detroit to Portugal from $345

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Portugal departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Detroit to Portugal

Cheap round-trip flights

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Cheap last minute flights

Big names and deals

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Delta flights from Detroit to Portugal

Our best Delta deals on Detroit to Portugal flight tickets

United Airlines flights from Detroit to Portugal

Our best United Airlines deals on Detroit to Portugal flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Detroit to Portugal that are best for you.

See travel insights to Portugal from

How to get the cheapest flight ticket from Detroit to Portugal

What is the cheapest month to fly to Portugal?

How far in advance should I book a flight from Detroit to Portugal?

Can stopping save me money on Detroit to Portugal flights?

What is the cheapest airline that flies from Detroit to Portugal?

What airlines fly to Portugal?

Cheap Detroit to Portugal flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Detroit to Portugal

Best airlines flying from Detroit to Portugal

Compare and see reviews for airlines that fly from Detroit to Portugal with momondo

Why use momondo?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Detroit flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

List of cabin classes available on flights landing in Portugal. Availability may vary depending on flight origin and airline.

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year