Which layover airport offers the lowest fares from Detroit to Helena?

Flights via Seattle (SEA) offer the lowest average round-trip price of $290.

Which airport is the most popular layover for flights between Detroit and Helena?

Denver (DEN) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Detroit to Helena?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 6h 25m.

Which layover airport has the shortest connection time from Detroit to Helena?

Denver (DEN) has the shortest average layover time for this route: 0h 57m.

When did momondo last update prices for flights from Detroit to Helena Airport?

Prices for flights from Detroit to Helena Airport were last updated today.

How old do you have to be to fly from Detroit to Helena Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Detroit to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The necessary travel and health documents for your Helena Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$240 Cheap Flights from Detroit to Helena in 2026

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Find the cheapest flights from Detroit to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 12:23 pm

DTW

HLN

7h 23m

1 stop

1:00 pm - 12:11 am

HLN

DTW

9h 11m

1 stop

$329Delta

Sat, Jun 6 - Wed, Jun 10

10:25 am - 10:31 pm

DTW

HLN

14h 06m

2 stops

1:00 pm - 11:17 pm

HLN

DTW

8h 17m

1 stop

$334Delta

Tue, Jun 9 - Sat, Jun 13

7:00 am - 12:23 pm

DTW

HLN

7h 23m

1 stop

5:35 am - 5:18 pm

HLN

DTW

9h 43m

2 stops

$359Delta

Sat, Jun 6 - Tue, Jun 9

7:01 am - 12:23 pm

DTW

HLN

7h 22m

2 stops

1:03 pm - 11:59 pm

HLN

DTW

8h 56m

1 stop

$370Delta

Sat, May 16 - Wed, May 20

5:43 pm - 10:33 pm

DTW

HLN

6h 50m

1 stop

1:00 pm - 12:11 am

HLN

DTW

9h 11m

1 stop

$394Delta

Sat, Jun 6 - Sun, Jun 14

4:23 pm - 10:33 pm

DTW

HLN

8h 10m

1 stop

1:03 pm - 11:59 pm

HLN

DTW

8h 56m

1 stop

$399Delta

Wed, May 13 - Sun, May 17

7:01 am - 4:32 pm

DTW

HLN

11h 31m

1 stop

5:09 pm - 5:41 am

HLN

DTW

10h 32m

1 stop

$419Alaska Airlines

Tue, Jul 7 - Tue, Jul 14

8:20 am - 12:23 pm

DTW

HLN

6h 03m

1 stop

1:03 pm - 11:59 pm

HLN

DTW

8h 56m

1 stop

$422Delta

Thu, May 14 - Sun, May 17

5:43 pm - 10:33 pm

DTW

HLN

6h 50m

1 stop

1:00 pm - 12:11 am

HLN

DTW

9h 11m

1 stop

$424Delta

Fri, Jun 5 - Tue, Jun 9

8:20 am - 12:23 pm

DTW

HLN

6h 03m

1 stop

5:45 am - 5:10 pm

HLN

DTW

9h 25m

2 stops

$427Delta

Thu, May 14 - Tue, May 19

Delta flights from Detroit to Helena

Our best Delta deals on Detroit to Helena flight tickets

Delta

Jun 6

DTW7:00 amDetroit Metropolitan Wayne County

7h 23m

1 stop

HLN12:23 pmHelena

Jun 10

HLN1:00 pmHelena

9h 11m

1 stop

DTW12:11 amDetroit Metropolitan Wayne County

$329

Delta

Jun 9

DTW10:25 amDetroit Metropolitan Wayne County

14h 06m

2 stops

HLN10:31 pmHelena

Jun 13

HLN1:00 pmHelena

8h 17m

1 stop

DTW11:17 pmDetroit Metropolitan Wayne County

$334

Delta

Jun 6

DTW7:00 amDetroit Metropolitan Wayne County

7h 23m

1 stop

HLN12:23 pmHelena

Jun 9

HLN5:35 amHelena

9h 43m

2 stops

DTW5:18 pmDetroit Metropolitan Wayne County

$359

Alaska Airlines flights from Detroit to Helena

Our best Alaska Airlines deals on Detroit to Helena flight tickets

Alaska Airlines

Jul 7

DTW7:01 amDetroit Metropolitan Wayne County

11h 31m

1 stop

HLN4:32 pmHelena

Jul 14

HLN5:09 pmHelena

10h 32m

1 stop

DTW5:41 amDetroit Metropolitan Wayne County

$419

Alaska Airlines

Jul 16

DTW6:11 pmDetroit Metropolitan Wayne County

24h 21m

2 stops

HLN4:32 pmHelena

Jul 20

HLN5:09 pmHelena

10h 32m

1 stop

DTW5:41 amDetroit Metropolitan Wayne County

$656

Alaska Airlines

May 14

DTW6:08 pmDetroit Metropolitan Wayne County

23h 58m

1 stop

HLN4:06 pmHelena

May 18

HLN4:43 pmHelena

22h 29m

1 stop

DTW5:12 pmDetroit Metropolitan Wayne County

$813

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Sat 6/6

7:00 am-12:23 pm

1 stop7h 23m

Helena

Wed 6/10

1:00 pm-12:11 am

1 stop9h 11m

$329

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Tue 6/9

10:25 am-10:31 pm

2 stops14h 06m

Helena

Sat 6/13

1:00 pm-11:17 pm

1 stop8h 17m

$334

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Sat 6/6

7:00 am-12:23 pm

1 stop7h 23m

Helena

Tue 6/9

5:35 am-5:18 pm

2 stops9h 43m

$359

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Sat 5/16

7:01 am-12:23 pm

2 stops7h 22m

Helena

Wed 5/20

1:03 pm-11:59 pm

1 stop8h 56m

$370

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Sat 6/6

5:43 pm-10:33 pm

1 stop6h 50m

Helena

Sun 6/14

1:00 pm-12:11 am

1 stop9h 11m

$394

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Wed 5/13

4:23 pm-10:33 pm

1 stop8h 10m

Helena

Sun 5/17

1:03 pm-11:59 pm

1 stop8h 56m

$399

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Tue 7/7

7:01 am-4:32 pm

1 stop11h 31m

Helena

Tue 7/14

5:09 pm-5:41 am

1 stop10h 32m

$419

Quickest round-trip

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Thu 5/14

8:20 am-12:23 pm

1 stop6h 03m

Helena

Sun 5/17

1:03 pm-11:59 pm

1 stop8h 56m

$422

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Fri 6/5

5:43 pm-10:33 pm

1 stop6h 50m

Helena

Tue 6/9

1:00 pm-12:11 am

1 stop9h 11m

$424

DetroitHelena

DTW - HLN

DTWHLN

Detroit Metropolitan Wayne County

Thu 5/14

8:20 am-12:23 pm

1 stop6h 03m

Helena

Tue 5/19

5:45 am-5:10 pm

2 stops9h 25m

$427

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Detroit to Helena

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Airlines

Layovers

What is the cheapest airline that flies from Detroit to Helena?

Alaska Airlines, United Airlines, and Delta are the most popular carriers operating from Detroit to Helena

What airlines fly to Helena?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Helena from Detroit according to our data. Delta is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 5 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When to book flights from Detroit to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Detroit to Helena according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Detroit to Helena (DTT to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to Helena

Fastest flight time	6h 24m
Direct flights	None

The fastest flight from Detroit to Helena takes 6h 24m

There are no direct flights from Detroit to Helena. There are no popular flight routes from Detroit to Helena.

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Frequently asked questions about flying from Detroit to Helena

How far is Detroit to Helena by plane?
Helena is 1449.5 mi away from Detroit. In terms of flight time, this usually takes a little over 6h 24m.
When did momondo last update prices for flights from Detroit to Helena Airport?
Prices for flights from Detroit to Helena Airport were last updated today.
How old do you have to be to fly from Detroit to Helena Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Detroit to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The necessary travel and health documents for your Helena Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to Helena?

It is quick and easy to find Detroit to Helena flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Helena that suits you.

Can I find flights from Detroit to Helena with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Detroit to Helena flights to just show those with flexible booking policies.

How can momondo help me find flights from Detroit to Helena?

Once you have performed a search for Detroit to Helena flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Detroit to Helena right now. Can momondo alert me if prices change?

Price alerts on flights to Helena from Detroit are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.