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$297+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — LIS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/1711:05 amDTW - LIS
2 stops16h 05mUnited Airlines
Wed 12/245:00 amLIS - DTW
1 stop13h 55mUnited Airlines
Deal found 12/17$853
This Delta deal was found by Cheapflights users on 12/16. 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.
Wed 12/1710:00 amDTW - LIS
1 stop17h 00mDelta
Wed 12/245:00 amLIS - DTW
2 stops20h 45mDelta
Deal found 12/16$929
This oojo deal was found by Cheapflights users on 12/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/171:01 pmDTW - LIS
2 stops20h 49mBritish Airways
Wed 12/2410:40 amLIS - DTW
2 stops34h 22mBritish Airways
Deal found 12/16$950
This KLM deal was found by Cheapflights users on 12/17. 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.
Wed 12/172:06 pmDTW - LIS
1 stop12h 54mKLM
Wed 12/245:00 amLIS - DTW
1 stop17h 55mKLM
Deal found 12/17$970
This Finnair deal was found by Cheapflights users on 12/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amDTW - LIS
1 stop19h 55mMultiple Airlines
Sun 12/2811:05 amLIS - DTW
1 stop17h 29mMultiple Airlines
Deal found 12/16$1,011
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:05 amDTW - LIS
2 stops18h 10mUnited Airlines
Sun 12/2811:55 amLIS - DTW
1 stop17h 01mUnited Airlines
Deal found 12/16$1,014
This Delta deal was found by Cheapflights users on 12/16. 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.
Wed 12/244:00 pmDTW - LIS
1 stop11h 00mDelta
Tue 12/305:30 amLIS - DTW
2 stops18h 33mDelta
Deal found 12/16$1,151
This Finnair deal was found by Cheapflights users on 12/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:12 amDTW - LIS
1 stop14h 43mMultiple Airlines
Tue 12/3011:05 amLIS - DTW
1 stop17h 29mMultiple Airlines
Deal found 12/16$1,231
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:00 amDTW - PDL
1 stop20h 55mMultiple Airlines
Mon 12/225:50 pmPDL - DTW
1 stop18h 45mMultiple Airlines
Deal found 12/16$1,529
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Sat 12/275:10 amDTW - PDL
2 stops23h 15mMultiple Airlines
Sat 1/35:40 pmPDL - DTW
3 stops34h 11mMultiple Airlines
Deal found 12/17$2,371
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Thu 12/183:55 pmDTW - PDL
1 stop10h 55mMultiple Airlines
Thu 12/259:35 amPDL - DTW
2 stops27h 08mMultiple Airlines
Deal found 12/17$2,568
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Fri 12/266:15 pmDTW - FNC
2 stops21h 45mMultiple Airlines
Fri 1/211:20 amFNC - DTW
3 stops35h 15mMultiple Airlines
Deal found 12/17$2,603

Find flight deals from Detroit to Portugal

Keep the following information in mind while searching for Detroit to Portugal flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$506
(Kiwi.com)

One-way from

$297
(WestJet)

Popular in

December

Cheapest in

November

Average price

$1,409
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, 2% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 18, 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

Mon 2/2

11:05 am-8:10 am

2 stops16h 05m

Lisbon Humberto Delgado

Wed 3/4

5:00 am-1:55 pm

1 stop13h 55m

$529

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Mon 2/23

10:28 am-8:10 am

2 stops16h 42m

Lisbon Humberto Delgado

Tue 3/3

5:00 am-8:22 pm

2 stops20h 22m

$534

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Wed 2/18

6:15 pm-9:20 am

1 stop10h 05m

Lisbon Humberto Delgado

Tue 3/3

5:00 am-1:55 pm

1 stop13h 55m

$535

DetroitFunchal

DTW - FNC

DTWFNC

Detroit Metropolitan Wayne County

Tue 3/17

7:25 pm-9:30 am

1 stop34h 05m

Funchal Madeira

Thu 3/26

10:20 am-9:25 am

2 stops27h 05m

$538

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Sun 2/22

10:00 am-8:00 am

2 stops17h 00m

Lisbon Humberto Delgado

Mon 3/2

11:25 am-5:50 pm

1 stop35h 25m

$570

DetroitFunchal

DTW - FNC

DTWFNC

Detroit Metropolitan Wayne County

Sat 1/31

5:00 am-9:15 am

2 stops23h 15m

Funchal Madeira

Sat 2/7

8:45 am-7:56 am

3 stops28h 11m

$597

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Fri 1/30

2:33 pm-8:10 am

1 stop12h 37m

Lisbon Humberto Delgado

Tue 2/3

10:15 am-5:52 pm

1 stop12h 37m

$605

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Fri 1/30

4:15 pm-2:35 pm

1 stop17h 20m

Lisbon Humberto Delgado

Mon 2/9

3:30 pm-1:05 pm

1 stop26h 35m

$621

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Sun 2/22

4:13 pm-4:30 pm

2 stops19h 17m

Lisbon Humberto Delgado

Fri 2/27

7:00 am-7:36 pm

2 stops41h 36m

$628

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Sun 2/15

12:55 pm-4:05 pm

2 stops22h 10m

Lisbon Humberto Delgado

Sat 2/21

7:05 am-12:44 am

2 stops22h 39m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 30 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 December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Detroit to Portugal in the morning. 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 Wednesday 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 December 18, 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
8,008 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,428 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,534 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 16h 05m. United Airlines provides one of the quickest options available for as low as $529. Airlines will cover a distance of 3777 mi. This flight may include one or multiple stops.

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

    $287 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on TAP AIR PORTUGAL and United Airlines, with prices starting from $366 and $407, respectively.

  • 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$441Average$1,006FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$559Average$640FlexibilityNo cancel feeOn-time77%
KLMCheapest$568Average$844FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$579Average$1,140FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$600Average$933FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$603Average$981FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$609Average$875FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$631Average$888FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$652Average$945FlexibilityNo cancel feeOn-time67%
TAP AIR PORTUGALCheapest$694Average$845FlexibilityNo cancel feeOn-timeN/A

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