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$284+ Cheap flights from Detroit (DTT) to Portugal

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — LIS
nov. 29 — déc. 61
sam. 11/29
sam. 12/6
1 adult, Economy
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Find flight deals from Detroit to Portugal

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

This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 11/297:35 pmDTW - LIS
1 stop19h 45mIcelandair
dim. 12/149:20 pmLIS - DTW
1 stop26h 10mIcelandair
Deal found 10/29$410
This oojo deal was found by Cheapflights users on 10/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/67:35 pmDTW - LIS
1 stop19h 45mIcelandair
dim. 12/149:20 pmLIS - DTW
1 stop26h 10mIcelandair
Deal found 10/28$417
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/36:15 pmDTW - LIS
1 stop9h 40mMultiple Airlines
mer. 12/105:00 amLIS - DTW
1 stop14h 15mMultiple Airlines
Deal found 10/30$522
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/22:05 pmDTW - LIS
2 stops14h 15mMultiple Airlines
jeu. 12/115:00 amLIS - DTW
1 stop13h 55mMultiple Airlines
Deal found 10/28$527
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/15:51 pmDTW - LIS
2 stops24h 39mLufthansa
mer. 12/105:00 amLIS - DTW
1 stop14h 15mLufthansa
Deal found 10/30$529
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/17:45 pmDTW - LIS
1 stop9h 30mUnited Airlines
mer. 12/105:00 amLIS - DTW
1 stop14h 15mUnited Airlines
Deal found 10/30$531
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/29:15 amDTW - LIS
2 stops19h 05mUnited Airlines
jeu. 12/1110:55 amLIS - DTW
2 stops35h 12mUnited Airlines
Deal found 10/28$532
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/266:15 pmDTW - LIS
1 stop9h 40mUnited Airlines
mer. 12/35:00 amLIS - DTW
1 stop14h 15mUnited Airlines
Deal found 10/27$533
This Delta deal was found by Cheapflights users on 10/28. 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.
lun. 11/106:15 pmDTW - LIS
1 stop12h 05mDelta
lun. 11/1711:25 amLIS - DTW
1 stop33h 30mDelta
Deal found 10/28$535
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/411:19 amDTW - PDL
2 stops16h 51mMultiple Airlines
mer. 12/109:30 amPDL - DTW
2 stops26h 14mMultiple Airlines
Deal found 10/30$576
This KLM deal was found by Cheapflights users on 10/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/18:35 pmDTW - FNC
1 stop32h 00mKLM
sam. 12/136:40 pmFNC - DTW
1 stop23h 20mKLM
Deal found 10/30$591
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/14:05 pmDTW - FNC
2 stops20h 45mMultiple Airlines
sam. 12/136:35 pmFNC - DTW
2 stops24h 20mMultiple Airlines
Deal found 10/29$757

Cheap flight deals from Detroit to Portugal

Keep the following information in mind while searching for Detroit to Portugal flight deals. Data was last updated octobre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$410
(Mytrip)

One-way from

$284
(flugladen.de)

Popular in

December

Cheapest in

November

Average price

$779
Provider with most accurate pricing for Detroit (DTT)-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Lisbon Humberto Delgado flights.
Search Deals
From Detroit (DTT) to Portugal
Search Deals
One-way flight from Detroit (DTT) to Portugal
Search Deals
High demand for flights, 5% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to Portugal 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 octobre 30, 2025.
Use the filters below to find and compare flights from Detroit to Portugal that are best for you.

Fly from

Detroit

Fly to

Portugal

Route

Depart

Return

Price

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

mer. 3/4

7:43 pm-10:15 am

1 stop9h 32m

Lisbon Humberto Delgado

mer. 3/11

5:00 am-2:55 pm

1 stop13h 55m

$528

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

mer. 3/4

10:28 am-8:10 am

2 stops16h 42m

Lisbon Humberto Delgado

mer. 3/11

5:00 am-2:55 pm

1 stop13h 55m

$528

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

lun. 1/12

4:45 pm-8:00 am

1 stop10h 15m

Lisbon Humberto Delgado

lun. 1/19

3:30 pm-1:05 pm

1 stop26h 35m

$535

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

mar. 11/11

6:15 pm-5:30 pm

1 stop18h 15m

Lisbon Humberto Delgado

lun. 11/17

11:25 am-3:55 pm

1 stop33h 30m

$535

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

mar. 1/6

11:05 am-8:10 am

2 stops16h 05m

Lisbon Humberto Delgado

mer. 1/14

5:00 am-1:55 pm

1 stop13h 55m

$537

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

lun. 12/1

2:10 pm-10:15 am

2 stops15h 05m

Lisbon Humberto Delgado

mer. 12/10

6:10 am-5:35 pm

2 stops16h 25m

$539

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

dim. 11/9

6:00 am-8:10 am

1 stop21h 10m

Lisbon Humberto Delgado

ven. 11/21

5:00 am-2:10 pm

1 stop14h 10m

$542

DetroitPonta Delgada

DTW - PDL

DTWPDL

Detroit Metropolitan Wayne County

jeu. 12/4

11:19 am-8:10 am

2 stops16h 51m

Ponta Delgada Nordela

mer. 12/10

9:30 am-7:44 am

2 stops26h 14m

$576

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

mer. 3/11

2:15 pm-11:35 am

2 stops17h 20m

Lisbon Humberto Delgado

lun. 3/23

5:00 am-8:26 pm

2 stops43h 26m

$580

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

mar. 12/2

2:25 pm-10:15 am

1 stop14h 50m

Lisbon Humberto Delgado

dim. 12/7

5:00 am-2:15 pm

1 stop14h 15m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 31 results
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Best time to book a flight from Detroit to Portugal

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

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

Currently, September is the cheapest month in which you can book a flight from Detroit to Portugal (average of $441). Flying from Detroit to Portugal in June is currently the most expensive (average of $873). 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 time of day to fly from DTT to PT?

Find hourly flight availability from Detroit to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octobre 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Detroit to Portugal at noon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Detroit to Portugal. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated octobre 30, 2025.
Read reviews from past customers who have flown Delta, KLM, and United Airlines from Detroit to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
KLM
7.7
Good
1,406 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,381 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,487 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Detroit to Portugal. 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 from for flights from Detroit to Portugal?

    Located just 0.6 mi from the city center, Detroit All airports (DTT) is the airport most travelers will use when flying to Portugal from Detroit.

  • How long is the flight from Detroit to Portugal?

    A quick flight from Detroit to Portugal can take about 9h 32m. United Airlines provides one of the quickest options available for as low as $528. Airlines will cover a distance of 3777 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Detroit to Portugal?

    When deciding which route to take from Detroit to Portugal consider Detroit Metropolitan Wayne County - Lisbon Humberto Delgado, Detroit Metropolitan Wayne County - Funchal Madeira or Detroit Metropolitan Wayne County - Ponta Delgada Nordela as they are the most popular.

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

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

  • How can I find direct flights from Detroit to Portugal?

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

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

    Yes. Cheapflights offers flight deals from Detroit to Portugal 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 Detroit to Portugal?

    Currently, September is the cheapest month in which you can book a flight from Detroit to Portugal (average of $441). Flying from Detroit to Portugal in June is currently the most expensive (average of $873). 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.

See more FAQs

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Alternative routes for Detroit to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Detroit to Portugal

Discover the top 10 airlines that operate flights from Detroit to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octobre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$441Average$1,068FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$559Average$637FlexibilityNo cancel feeOn-time77%
KLMCheapest$568Average$886FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$592Average$922FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$601Average$950FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$606Average$1,140FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$609Average$875FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$631Average$838FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$683Average$947FlexibilityNo cancel feeOn-time67%
TAP AIR PORTUGALCheapest$694Average$845FlexibilityNo cancel feeOn-timeN/A

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