$374+ Cheap flights from Detroit to Helena (DTT - HLN)
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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HLN
Dec 6 — Dec 131
1 adult, Economy
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Cheapest flights from Detroit to HelenaExplore the most affordable flight options available from Detroit to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.
Explore the most affordable flight options available from Detroit to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 12/1811:20 amDTW - HLN
2 stops12h 11mUnited Airlines
Tue 12/236:10 amHLN - DTW
2 stops25h 56mUnited Airlines
Deal found 11/5![United Airlines logo]()
$760
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/184:52 pmDTW - HLN
1 stop27h 03mAlaska Airlines
Tue 12/236:32 pmHLN - DTW
1 stop8h 48mAlaska Airlines
Deal found 11/5![Alaska Airlines logo]()
$802
Cheap flight deals from Detroit to Helena
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Helena (HLN). 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 November 6, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 1 star |
Round-trip from | $443 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Detroit to Helena 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 November 6, 2025.
Use the filters below to find and compare flights from Detroit to Helena that are best for you.
Fly from
Detroit
Fly to
Helena
Route
Depart
Return
Price
DetroitHelena
DTW - HLN
DTWHLN
Detroit Metropolitan Wayne County
Thu 1/22
5:15 pm-5:22 pm
1 stop26h 07m
Helena
Sun 1/25
5:59 pm-4:19 pm
1 stop20h 20m
$374
DetroitHelena
DTW - HLN
DTWHLN
Detroit Metropolitan Wayne County
Thu 1/22
5:30 am-1:41 pm
2 stops10h 11m
Helena
Sun 1/25
2:27 pm-10:30 pm
1 stop6h 03m
$468
DetroitHelena
DTW - HLN
DTWHLN
Detroit Metropolitan Wayne County
Thu 12/18
11:20 am-9:31 pm
2 stops12h 11m
Helena
Tue 12/23
6:10 am-10:06 am
2 stops25h 56m
$760
DetroitHelena
DTW - HLN
DTWHLN
Detroit Metropolitan Wayne County
Thu 12/18
4:52 pm-5:55 pm
1 stop27h 03m
Helena
Tue 12/23
6:32 pm-5:20 am
1 stop8h 48m
$802
- Most accurate provider: When it comes to deals on Detroit-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Helena flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Detroit-Helena flights, Cheapflights users trust FlightHub the most. FlightHub 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-Helena 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 Helena
Have a flexible travel schedule? Discover the best time to fly to Helena 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 Helena
What is the cheapest month to book a flight from Detroit to Helena?
Currently, August is the cheapest month in which you can book a flight from Detroit to Helena (average of $196). Flying from Detroit to Helena in December is currently the most expensive (average of $389). 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.