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$301+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — LIS
Jul 26 — Aug 21
Sun 7/26
Sun 8/2
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 June 26, 2026.

This Virgin Atlantic deal was found by Cheapflights users on 6/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:10 pm
DTW
-
LIS
1 stop10h 50m
Virgin Atlantic
Sun 11/2911:15 am
LIS
-
DTW
1 stop15h 50m
Virgin Atlantic
Deal found 6/24$384
This Virgin Atlantic deal was found by Cheapflights users on 6/25. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:05 am
DTW
-
LIS
1 stop19h 55m
Virgin Atlantic
Mon 10/512:45 pm
LIS
-
DTW
1 stop14h 35m
Virgin Atlantic
Deal found 6/25$632
This Trip.com deal was found by Cheapflights users on 6/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:30 pm
DTW
-
LIS
1 stop23h 15m
WestJet
Mon 9/146:00 am
LIS
-
DTW
1 stop16h 20m
WestJet
Deal found 6/25$650
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Tue 8/255:30 pm
DTW
-
LIS
1 stop23h 15m
WestJet
Mon 8/316:15 am
LIS
-
DTW
1 stop16h 05m
WestJet
Deal found 6/25$654
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Sun 8/305:30 pm
DTW
-
LIS
1 stop23h 15m
Multiple Airlines
Mon 9/711:00 pm
LIS
-
DTW
2 stops23h 20m
Multiple Airlines
Deal found 6/21$655
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sat 8/295:30 pm
DTW
-
LIS
1 stop22h 25m
WestJet
Mon 8/316:15 am
LIS
-
DTW
1 stop16h 05m
WestJet
Deal found 6/25$658
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Tue 8/255:30 pm
DTW
-
LIS
1 stop23h 15m
WestJet
Sat 9/56:10 am
LIS
-
DTW
1 stop16h 10m
WestJet
Deal found 6/25$659
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Sat 8/295:30 pm
DTW
-
LIS
1 stop22h 25m
WestJet
Sat 9/56:10 am
LIS
-
DTW
1 stop16h 10m
WestJet
Deal found 6/22$661
This Mytrip deal was found by Cheapflights users on 6/25. 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 9/52:55 pm
DTW
-
LIS
3 stops26h 00m
Multiple Airlines
Tue 9/156:15 am
LIS
-
DTW
1 stop16h 05m
Multiple Airlines
Deal found 6/25$664
This KLM deal was found by Cheapflights users on 6/22. 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.
Mon 10/1910:30 pm
DTW
-
FNC
1 stop30h 05m
KLM
Fri 10/306:00 pm
FNC
-
DTW
1 stop26h 29m
KLM
Deal found 6/22$790
This KLM deal was found by Cheapflights users on 6/22. 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.
Tue 10/207:45 pm
DTW
-
FNC
2 stops32h 30m
KLM
Fri 10/306:00 pm
FNC
-
DTW
1 stop28h 48m
KLM
Deal found 6/22$795
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Sun 8/165:25 am
DTW
-
PDL
2 stops23h 15m
United Airlines
Tue 8/2511:00 am
PDL
-
DTW
1 stop13h 37m
United Airlines
Deal found 6/21$796

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 June 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$384
(Virgin Atlantic)

One-way from

$301
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$676
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
Highest demand for flights based on searches. 15% potential increase in price ($150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 26, 2026.
Use the filters below to find and compare flights from Detroit to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Mon 9/7

5:30 pm-9:20 pm

2 stops22h 50m

Lisbon Humberto Delgado

Mon 9/14

11:00 pm-5:20 pm

2 stops23h 20m

$735

DetroitPonta Delgada

DTW - PDL

DTWPDL

Detroit Metropolitan Wayne County

Sun 8/16

5:25 am-8:40 am

2 stops23h 15m

Ponta Delgada Nordela

Tue 8/25

11:00 am-8:37 pm

1 stop13h 37m

$796

DetroitPonta Delgada

DTW - PDL

DTWPDL

Detroit Metropolitan Wayne County

Wed 7/22

4:48 pm-8:40 am

1 stop11h 52m

Ponta Delgada Nordela

Wed 7/29

9:35 am-6:38 pm

2 stops37h 03m

$885

DetroitFunchal

DTW - FNC

DTWFNC

Detroit Metropolitan Wayne County

Tue 7/28

3:15 pm-8:05 am

1 stop11h 50m

Funchal Madeira

Fri 8/7

9:40 am-11:24 pm

1 stop18h 44m

$912

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Wed 8/12

10:15 am-9:20 am

1 stop18h 05m

Lisbon Humberto Delgado

Mon 8/24

7:25 am-1:55 pm

1 stop35h 30m

$977

DetroitPonta Delgada

DTW - PDL

DTWPDL

Detroit Metropolitan Wayne County

Mon 7/27

2:35 pm-8:40 am

2 stops14h 05m

Ponta Delgada Nordela

Fri 8/7

9:35 am-9:52 am

2 stops28h 17m

$1,023

DetroitPonta Delgada

DTW - PDL

DTWPDL

Detroit Metropolitan Wayne County

Tue 7/28

6:00 am-8:40 am

1 stop22h 40m

Ponta Delgada Nordela

Fri 8/7

9:35 am-9:52 am

2 stops52h 17m

$1,024

DetroitPonta Delgada

DTW - PDL

DTWPDL

Detroit Metropolitan Wayne County

Mon 8/10

4:48 pm-8:40 am

1 stop11h 52m

Ponta Delgada Nordela

Mon 8/17

11:00 am-11:59 pm

2 stops16h 59m

$1,030

DetroitLisbon

DTW - LIS

DTWLIS

Detroit Metropolitan Wayne County

Sun 7/19

5:10 pm-11:15 am

1 stop13h 05m

Lisbon Humberto Delgado

Mon 7/27

5:00 am-1:30 pm

1 stop13h 30m

$1,036

DetroitFunchal

DTW - FNC

DTWFNC

Detroit Metropolitan Wayne County

Mon 9/14

10:30 pm-9:35 am

1 stop30h 05m

Funchal Madeira

Sun 9/20

6:40 pm-1:25 pm

1 stop23h 45m

$1,038

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 51 resultsSorted by cheapest first
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6

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 May is currently the most expensive (average of $599). 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.

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

The price you pay for your flight from Detroit to Portugal may vary depending on when you book. For the best chance of a lower fare, look to book 6 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 June 26, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andWestJet 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
7.8
Good
8,442 reviews

Food

7.2

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.
Delta
7.8
Good
8,442 reviews
Delta
7.8
Good
8,442 reviews

Food

7.2

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.
United Airlines
7.4
Good
9,890 reviews
Delta
7.8
Good
8,442 reviews

Food

7.2

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.
WestJet
7.2
Good
3,384 reviews
Delta
7.8
Good
8,442 reviews

Food

7.2

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.
Air Canada
7.1
Good
11,260 reviews
Delta
7.8
Good
8,442 reviews

Food

7.2

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Crew

8.5

Reviews

1 / 20
4.0
Okay

Laura,Aug 2023

DTW - BOS

Finally got on a flight to Boston and all went ok. We were the last to board and sat in the last seats on the plane. Not particularly treated well after waiting all day to travel.

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 13h 05m. United Airlines provides one of the quickest options available for as low as $1,036. 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?

    $240 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on KLM and WestJet, with prices starting from $269 and $278, 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 May is currently the most expensive (average of $599). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Detroit to Portugal

Discover the top 9 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 June 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$441Average$960FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$509Average$910FlexibilityNo cancel feeOn-time76%
WestJetCheapest$521Average$775FlexibilityNo cancel feeOn-time60%
KLMCheapest$528Average$860FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$588Average$634FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$600Average$1,012FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$614Average$1,030FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$672Average$1,091FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$682Average$857FlexibilityNo cancel feeOn-timeN/A

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