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$544+ Cheap flights from Detroit (DTT) to Helsinki (HEL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HEL
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from Detroit to Helsinki

Cheapest flights from Detroit to Helsinki
Explore the most affordable flight options available from Detroit to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This FlightHub deal was found by Cheapflights users on 12/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:15 pmDTW - HEL
1 stop17h 15mLufthansa
Wed 12/315:55 pmHEL - DTW
1 stop27h 20mLufthansa
Deal found 12/19$1,166
This FlightHub deal was found by Cheapflights users on 12/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:15 pmDTW - HEL
2 stops15h 15mAir Canada
Wed 12/3112:45 pmHEL - DTW
3 stops35h 50mAir Canada
Deal found 12/19$1,603

Find flight deals from Detroit to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$518
(Finnair)

Popular in

November

Cheapest in

September

Average price

$1,092
Provider with most accurate pricing for Detroit (DTT)-Helsinki-Vantaa flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Helsinki-Vantaa flights.
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From Detroit (DTT) to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($247 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to Helsinki 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 21, 2025.
Use the filters below to find and compare flights from Detroit to Helsinki that are best for you.

Fly from

Detroit

Fly to

Helsinki

Route

Depart

Return

Price

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Mon 2/2

8:05 pm-11:35 am

1 stop32h 30m

Helsinki-Vantaa

Tue 2/17

7:00 pm-6:10 pm

1 stop30h 10m

$544

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Tue 2/24

8:00 am-12:55 pm

3 stops21h 55m

Helsinki-Vantaa

Mon 3/2

1:55 pm-12:25 am

2 stops17h 30m

$574

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Mon 2/2

5:00 am-3:25 pm

3 stops27h 25m

Helsinki-Vantaa

Mon 2/9

7:00 am-12:19 am

2 stops24h 19m

$574

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Sun 3/1

9:20 pm-4:25 pm

1 stop12h 05m

Helsinki-Vantaa

Thu 3/12

7:00 am-4:55 pm

1 stop15h 55m

$578

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Sun 3/1

2:56 pm-4:25 pm

2 stops18h 29m

Helsinki-Vantaa

Thu 3/12

7:00 am-2:10 pm

1 stop13h 10m

$582

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Sun 3/1

2:10 pm-1:55 pm

2 stops16h 45m

Helsinki-Vantaa

Thu 3/12

12:30 pm-11:58 pm

1 stop17h 28m

$588

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Sun 1/11

5:00 am-3:25 pm

2 stops27h 25m

Helsinki-Vantaa

Sat 1/17

11:20 am-12:19 am

2 stops19h 59m

$596

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Sun 1/18

8:05 pm-11:35 am

1 stop32h 30m

Helsinki-Vantaa

Sun 1/25

12:30 pm-6:10 pm

1 stop36h 40m

$598

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Tue 2/24

10:20 am-3:25 pm

2 stops22h 05m

Helsinki-Vantaa

Mon 3/2

6:15 am-10:12 pm

2 stops22h 57m

$604

DetroitHelsinki

DTW - HEL

DTWHEL

Detroit Metropolitan Wayne County

Fri 1/23

7:17 am-10:40 am

2 stops20h 23m

Helsinki-Vantaa

Sun 2/1

6:15 am-10:08 pm

2 stops22h 53m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 13 results
1
2

Compare providers for flights from Detroit to Helsinki

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Helsinki in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit-Helsinki flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Detroit-Helsinki flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Detroit-Helsinki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-Helsinki flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Detroit to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki 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 Helsinki

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

Currently, October is the cheapest month in which you can book a flight from Detroit to Helsinki (average of $495). Flying from Detroit to Helsinki in July is currently the most expensive (average of $988). 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 HEL?

Find hourly flight availability from Detroit to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

When flying from Detroit to Helsinki, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 47% versus a flight in the morning.

How much does it cost to fly round-trip from Detroit to Helsinki?

What’s the top layover airport for flights from Detroit to Helsinki?

Share of 1-stop round-trip flights from Detroit to Helsinki chosen by Cheapflights users in the past 12 months, using the same layover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 67% of 1-stop itineraries from Detroit to Helsinki on Cheapflights.

What’s the cheapest layover airport for flights from Detroit to Helsinki?

Average round-trip fare for 1-stop flights from Detroit to Helsinki, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $614.

What’s the fastest layover option from Detroit to Helsinki?

Shortest average travel time for 1-stop one-way flights from Detroit to Helsinki, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 30m.

Which airport typically offers the quickest layover for flights from Detroit to Helsinki?

Average layover duration for 1-stop one-way flights from Detroit to Helsinki, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 10m.

Reviews of airlines servicing Helsinki

Get insights into the airlines that provide service to Helsinki. 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 Helsinki. Reviews last updated December 21, 2025.
Read reviews from past customers who have flown Delta and Icelandair from Detroit to Helsinki. 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
8,017 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

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
8,017 reviews
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

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.
Icelandair
7.0
Good
592 reviews
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

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 Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Detroit to Helsinki?

    A quick flight from Detroit to Helsinki can take about 18h 29m. Turkish Airlines provides one of the quickest options available for as low as $582. There are 4285 mi between Detroit and Helsinki. This flight may include one or multiple stops.

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

    Flying on Icelandair is currently your cheapest option to Helsinki, with prices starting at $532. Another option worth looking into is Delta, starting at $585 round trip. Icelandair is priced at 33% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Detroit to Helsinki (average of $495). Flying from Detroit to Helsinki in July is currently the most expensive (average of $988). 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

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

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Top 2 airlines flying from Detroit to Helsinki

Discover the top 2 airlines that operate flights from Detroit to Helsinki. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$532Average$712FlexibilityNo cancel feeOn-time76%
DeltaCheapest$585Average$928FlexibilityNo cancel feeOn-timeN/A

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