HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helena

$234+ Cheap flights from Detroit to Helena (DTT - HLN)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HLN
May 2 — May 91
Sat 5/2
Sat 5/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Detroit to Helena with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Detroit to Helena

Cheapest flights from Detroit to Helena
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 April 2, 2026.

This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 8/293:32 pm
DTW
-
HLN
1 stop7h 44m
United Airlines
Tue 9/12:29 pm
HLN
-
DTW
1 stop6h 16m
United Airlines
Deal found 3/30$439
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:20 am
DTW
-
HLN
2 stops9h 04m
Delta
Sun 5/31:04 pm
HLN
-
DTW
1 stop8h 54m
Delta
Deal found 3/30$453
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:14 pm
DTW
-
HLN
1 stop26h 31m
Alaska Airlines
Sun 5/36:22 pm
HLN
-
DTW
1 stop9h 22m
Alaska Airlines
Deal found 3/30$466
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/159:03 am
DTW
-
HLN
1 stop6h 36m
United Airlines
Sun 4/192:25 pm
HLN
-
DTW
1 stop6h 27m
United Airlines
Deal found 3/31$489
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Tue 11/1012:11 pm
DTW
-
HLN
2 stops10h 48m
United Airlines
Sat 11/142:30 pm
HLN
-
DTW
1 stop5h 53m
United Airlines
Deal found 4/1$574
This Delta deal was found by Cheapflights users on 4/1. 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.
Thu 7/165:40 pm
DTW
-
HLN
1 stop7h 00m
Delta
Mon 7/205:40 am
HLN
-
DTW
1 stop7h 32m
Delta
Deal found 4/1$579
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:01 am
DTW
-
HLN
1 stop11h 31m
Alaska Airlines
Mon 7/205:09 pm
HLN
-
DTW
1 stop10h 32m
Alaska Airlines
Deal found 3/30$597

Find 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 April 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$439
(United Airlines)

One-way from

$234
(Expedia)
Provider with most accurate pricing for Detroit (DTT)-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Helena flights.
Search Deals
From Detroit (DTT) to Helena
Search Deals
One-way flight from Detroit (DTT) to Helena
Search Deals

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 April 2, 2026.
Use the filters below to find and compare flights from Detroit to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Tue 4/28

5:20 am-12:24 pm

2 stops9h 04m

Helena

Sun 5/3

1:04 pm-11:58 pm

1 stop8h 54m

$453

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Tue 4/28

5:14 pm-5:45 pm

1 stop26h 31m

Helena

Sun 5/3

6:22 pm-5:44 am

1 stop9h 22m

$466

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Wed 4/15

11:00 am-9:33 pm

2 stops12h 33m

Helena

Sun 4/19

2:25 pm-10:52 pm

1 stop6h 27m

$494

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Tue 4/28

11:00 am-9:33 pm

2 stops12h 33m

Helena

Sun 5/3

2:30 pm-10:53 pm

1 stop6h 23m

$657
Cheapest one-way

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Wed 5/20

7:09 am-4:06 pm

1 stop10h 57m

$234
Quickest one-way

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Mon 7/27

3:32 pm-9:20 pm

1 stop7h 48m

$334

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Wed 5/20

5:10 am-12:23 pm

2 stops9h 13m

$365

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Wed 5/20

9:00 am-9:46 pm

3 stops14h 46m

$678

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Sorted by cheapest first
  • 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, February is the cheapest month in which you can book a flight from Detroit to Helena (average of $138). Flying from Detroit to Helena in December is currently the most expensive (average of $362). 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.

Related info for your journey

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

    A quick flight from Detroit to Helena can take about 9h 04m. Delta provides one of the quickest options available for as low as $453. There are 1436 mi between Detroit and Helena. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Detroit to Helena (average of $138). Flying from Detroit to Helena in December is currently the most expensive (average of $362). 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.