What are the cheapest airlines flying from Porto to Detroit round-trip?

United Airlines, at $767, was found to be the cheapest airline from Porto to Detroit.Alternate airlines to your destination round-trip include SWISS and Lufthansa.

What are the cheapest airlines to fly from Porto to Detroit one-way?

One-way options have recently been found by users for as low as $930 on United Airlines. Other airlines that offer cheap prices include SWISS from $932 and TAP AIR PORTUGAL from $966 one-way.

What is the cheapest month to book a flight from Porto to Detroit?

Currently, April is the cheapest month in which you can book a flight from Porto to Detroit (average of $257). Flying from Porto to Detroit in March is currently the most expensive (average of $305). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Porto to Detroit?

Travelers seeking maximum savings on their Porto to Detroit flight should consider departing on Wednesday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Detroit ranges from 1.8 - 3.1 inches per month. August is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Detroit when rainfall is around 1.8 in.

If weather is an important factor for your trip to Detroit, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What is the cheapest time of day to fly from OPO to DTT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Detroit as you normally would.

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

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

How can I find direct flights from Porto to Detroit?

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

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

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

$388+ Flights from Porto to Detroit

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Cheap flight deals from Porto to Detroit

Round-trip from	$668 (Trip.com)
One-way from	$388 (Kiwi.com)

From Porto to Detroit (DTT)

Search Deals

One-way flight from Porto to Detroit (DTT)

Search Deals

Find flight deals from Porto to Detroit

Cheapest flights from Porto to Detroit
Explore the most affordable flight options available from Porto to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Thu 9/412:35 pmOPO - DTW

1 stop16h 24mMultiple Airlines

Mon 9/810:41 amDTW - OPO

2 stops17h 54mMultiple Airlines

Deal found 7/30

$668

Thu 9/46:00 amOPO - DTW

1 stop13h 10mUnited Airlines

Mon 9/81:25 pmDTW - OPO

1 stop15h 20mUnited Airlines

Deal found 7/30

$767

Thu 9/48:40 amOPO - DTW

2 stops18h 42mSWISS

Mon 9/82:10 pmDTW - OPO

2 stops40h 20mSWISS

Deal found 7/30

$795

Fri 9/126:00 amOPO - DTW

1 stop13h 10mLufthansa

Fri 9/194:00 pmDTW - OPO

1 stop25h 45mLufthansa

Deal found 7/29

$943

Best flights from Porto to Detroit
Discover carefully curated flight deals from Porto to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Thu 9/412:35 pmOPO - DTW

1 stop16h 24mMultiple Airlines

Mon 9/810:41 amDTW - OPO

2 stops17h 54mMultiple Airlines

Deal found 7/30

$668

Thu 9/46:00 amOPO - DTW

1 stop13h 10mUnited Airlines

Mon 9/81:25 pmDTW - OPO

1 stop15h 20mUnited Airlines

Deal found 7/30

$767

Thu 9/48:40 amOPO - DTW

2 stops18h 42mSWISS

Mon 9/82:10 pmDTW - OPO

2 stops40h 20mSWISS

Deal found 7/30

$795

Fri 9/126:00 amOPO - DTW

1 stop13h 10mLufthansa

Fri 9/194:00 pmDTW - OPO

1 stop25h 45mLufthansa

Deal found 7/29

$943

One-way flights from Porto to Detroit
Search for one-way flight options from Porto to Detroit. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Fri 9/196:00 amOPO - DTW

2 stops35h 04mMultiple Airlines

Deal found 7/29

$388

Mon 9/16:00 amOPO - DTW

1 stop13h 10mUnited Airlines

Deal found 7/30

$930

Mon 9/111:30 amOPO - DTW

2 stops39h 52mSWISS

Deal found 7/30

$932

Thu 8/2110:25 pmOPO - DTW

2 stops29h 32mTAP AIR PORTUGAL

Deal found 7/30

$966

Fly from

Fly to

Route

Depart

Return

Price

PortoDetroit

OPO - DTW

OPODTW

Porto

Thu 9/4

12:35 pm-11:59 pm

1 stop16h 24m

Detroit Metropolitan Wayne County

Mon 9/8

10:41 am-9:35 am

2 stops17h 54m

$668

PortoDetroit

OPO - DTW

OPODTW

Porto

Thu 9/4

6:00 am-2:10 pm

1 stop13h 10m

Detroit Metropolitan Wayne County

Mon 9/8

1:25 pm-9:45 am

1 stop15h 20m

$767

PortoDetroit

OPO - DTW

OPODTW

Porto

Thu 9/4

8:40 am-10:22 pm

2 stops18h 42m

Detroit Metropolitan Wayne County

Mon 9/8

2:10 pm-11:30 am

2 stops40h 20m

$795

PortoDetroit

OPO - DTW

OPODTW

Porto

Fri 9/12

6:00 am-2:10 pm

1 stop13h 10m

Detroit Metropolitan Wayne County

Fri 9/19

4:00 pm-10:45 pm

1 stop25h 45m

$943

PortoDetroit

OPO - DTW

OPODTW

Porto

Fri 9/19

6:00 am-12:04 pm

2 stops35h 04m

$388

PortoDetroit

OPO - DTW

OPODTW

Porto

Mon 9/1

6:00 am-2:10 pm

1 stop13h 10m

$930

PortoDetroit

OPO - DTW

OPODTW

Porto

Mon 9/1

11:30 am-10:22 pm

2 stops39h 52m

$932

PortoDetroit

OPO - DTW

OPODTW

Porto

Thu 8/21

10:25 pm-10:57 pm

2 stops29h 32m

$966

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Porto to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from Porto 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.

Cheapflights Insights

Everything you need to know about your flight from Porto to Detroit

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Detroit

Get a feel of what it's like to fly with SWISS, United Airlines, and TAP AIR PORTUGAL from Porto to Detroit by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

SWISS

7.5

Good

1,686 reviews

Reviews

1 / 20

10.0

Excellent

Ruth,Aug 2024

IAD - ZRH

Thank you for the upgrade- it will make me a loyal fan

SWISS

7.5

Good

1,686 reviews

SWISS

7.5

Good

1,686 reviews

Reviews

1 / 20

10.0

Excellent

Ruth,Aug 2024

IAD - ZRH

Thank you for the upgrade- it will make me a loyal fan

United Airlines

7.4

Good

8,896 reviews

SWISS

7.5

Good

1,686 reviews

Reviews

1 / 20

10.0

Excellent

Ruth,Aug 2024

IAD - ZRH

Thank you for the upgrade- it will make me a loyal fan

TAP AIR PORTUGAL

7.1

Good

1,930 reviews

SWISS

7.5

Good

1,686 reviews

Reviews

1 / 20

10.0

Excellent

Ruth,Aug 2024

IAD - ZRH

Thank you for the upgrade- it will make me a loyal fan

Lufthansa

6.8

Okay

7,269 reviews

SWISS

7.5

Good

1,686 reviews

Reviews

1 / 20

10.0

Excellent

Ruth,Aug 2024

IAD - ZRH

Thank you for the upgrade- it will make me a loyal fan

Related info for your journey

What are the cheapest airlines flying from Porto to Detroit round-trip?
United Airlines, at $767, was found to be the cheapest airline from Porto to Detroit.Alternate airlines to your destination round-trip include SWISS and Lufthansa.
What are the cheapest airlines to fly from Porto to Detroit one-way?
One-way options have recently been found by users for as low as $930 on United Airlines. Other airlines that offer cheap prices include SWISS from $932 and TAP AIR PORTUGAL from $966 one-way.
Can I find deals for flights from Porto to Detroit that include hotel bookings?
Yes. In addition to deals on Porto to Detroit flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Porto to Detroit?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Detroit.
Can I find deals for business class flights from Porto to Detroit?
Yes. Cheapflights offers flight deals from Porto to Detroit by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Porto to Detroit?
Currently, April is the cheapest month in which you can book a flight from Porto to Detroit (average of $257). Flying from Porto to Detroit in March is currently the most expensive (average of $305). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$388+ Cheap flights from Porto (OPO) to Detroit (DTT)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Porto to Detroit with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Porto to Detroit

Round-trip from

One-way from

Find flight deals from Porto to Detroit

Cheapest flights from Porto to DetroitExplore the most affordable flight options available from Porto to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Porto to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Porto to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from Porto with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Porto to Detroit

Reviews of airlines servicing Detroit

Get a feel of what it's like to fly with SWISS, United Airlines, and TAP AIR PORTUGAL from Porto to Detroit by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines flying from Porto to Detroit round-trip?

What are the cheapest airlines to fly from Porto to Detroit one-way?

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

How can I find direct flights from Porto to Detroit?

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

What is the cheapest month to book a flight from Porto to Detroit?

Traveling to a place near Detroit?

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Alternative routes for Porto to Detroit

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Book with Flexibility

Travel Smart

Cheapest flights from Porto to Detroit
Explore the most affordable flight options available from Porto to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.