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Cheap flights from District of Columbia to Helena from $208

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Helena departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:33 am - 5:55 pmIAD-HLN
12h 22m1 stop
Alaska Airlines Logo
6:32 pm - 6:13 amHLN-IAD
9h 41m1 stop
$483Alaska Airlines
Find Deal
Thu, Jan 1 - Sun, Jan 4
Alaska Airlines Logo
8:00 am - 5:55 pmDCA-HLN
11h 55m1 stop
Alaska Airlines Logo
6:32 pm - 4:05 pmHLN-DCA
19h 33m1 stop
$533Alaska Airlines
Find Deal
Thu, Jan 1 - Sun, Jan 4
United Airlines Logo
10:23 pm - 1:47 pmIAD-HLN
17h 24m2 stops
United Airlines Logo
2:30 pm - 11:15 pmHLN-IAD
6h 45m1 stop
$814United Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 11
Alaska Airlines Logo
6:34 pm - 5:51 pmIAD-HLN
25h 17m1 stop
Alaska Airlines Logo
6:28 pm - 4:36 pmHLN-IAD
20h 08m1 stop
$879Alaska Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 11
Delta Logo
5:10 pm - 10:30 pmDCA-HLN
7h 20m1 stop
Delta Logo
5:30 am - 4:01 pmHLN-DCA
8h 31m1 stop
$881Delta
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Mon, Dec 1 - Thu, Dec 11
Delta Logo
2:00 pm - 10:30 pmDCA-HLN
10h 30m2 stops
Delta Logo
5:30 am - 4:01 pmHLN-DCA
8h 31m1 stop
$886Delta
Find Deal
Mon, Dec 1 - Thu, Dec 11
Delta Logo
2:00 pm - 10:30 pmDCA-HLN
10h 30m2 stops
Delta Logo
1:06 pm - 11:40 pmHLN-DCA
8h 34m2 stops
$958Delta
Find Deal
Mon, Dec 1 - Thu, Dec 11
Alaska Airlines Logo
6:43 pm - 5:55 pmIAD-HLN
25h 12m1 stop
Alaska Airlines Logo
6:32 pm - 5:43 pmHLN-IAD
21h 11m1 stop
$959Alaska Airlines
Find Deal
Sun, Dec 21 - Sat, Dec 27
United Airlines Logo
4:17 pm - 9:22 pmDCA-HLN
7h 05m1 stop
United Airlines Logo
6:40 am - 2:55 pmHLN-DCA
6h 15m1 stop
$1,104United Airlines
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Sat, Nov 22 - Sun, Nov 30
United Airlines Logo
5:07 pm - 1:27 pmDCA-HLN
22h 20m2 stops
United Airlines Logo
6:40 am - 2:55 pmHLN-DCA
6h 15m1 stop
$1,195United Airlines
Find Deal
Sat, Nov 22 - Sun, Nov 30

United Airlines flights from District of Columbia to Helena

Our best United Airlines deals on District of Columbia to Helena flight tickets
United Airlines
Dec 1
IAD10:23 pmWashington, D.C. Dulles Intl
17h 24m
2 stops
HLN1:47 pmHelena
Dec 11
HLN2:30 pmHelena
6h 45m
1 stop
IAD11:15 pmWashington, D.C. Dulles Intl
$814
Find similar
United Airlines
Nov 22
DCA4:17 pmWashington, D.C. Reagan-National
7h 05m
1 stop
HLN9:22 pmHelena
Nov 30
HLN6:40 amHelena
6h 15m
1 stop
DCA2:55 pmWashington, D.C. Reagan-National
$1,104
Find similar
United Airlines
Oct 26
IAD8:25 amWashington, D.C. Dulles Intl
7h 02m
1 stop
HLN1:27 pmHelena
Oct 28
HLN2:22 pmHelena
15h 05m
2 stops
IAD7:27 amWashington, D.C. Dulles Intl
$1,125
Find similar

Delta flights from District of Columbia to Helena

Our best Delta deals on District of Columbia to Helena flight tickets
Delta
Dec 1
DCA5:10 pmWashington, D.C. Reagan-National
7h 20m
1 stop
HLN10:30 pmHelena
Dec 11
HLN5:30 amHelena
8h 31m
1 stop
DCA4:01 pmWashington, D.C. Reagan-National
$881
Find similar
Delta
Dec 1
DCA2:00 pmWashington, D.C. Reagan-National
10h 30m
2 stops
HLN10:30 pmHelena
Dec 11
HLN5:30 amHelena
8h 31m
1 stop
DCA4:01 pmWashington, D.C. Reagan-National
$886
Find similar
Delta
Dec 1
DCA2:00 pmWashington, D.C. Reagan-National
10h 30m
2 stops
HLN10:30 pmHelena
Dec 11
HLN1:06 pmHelena
8h 34m
2 stops
DCA11:40 pmWashington, D.C. Reagan-National
$958
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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, momondo users made 832,500 searches. Data last updated October 24, 2025.
Use the filters below to find and compare flights from District of Columbia to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 1/1

7:33 am-5:55 pm

1 stop12h 22m

Helena

Sun 1/4

6:32 pm-6:13 am

1 stop9h 41m

$483

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Thu 1/1

8:00 am-5:55 pm

1 stop11h 55m

Helena

Sun 1/4

6:32 pm-4:05 pm

1 stop19h 33m

$533

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Mon 12/1

10:23 pm-1:47 pm

2 stops17h 24m

Helena

Thu 12/11

2:30 pm-11:15 pm

1 stop6h 45m

$814

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Mon 12/1

6:34 pm-5:51 pm

1 stop25h 17m

Helena

Thu 12/11

6:28 pm-4:36 pm

1 stop20h 08m

$879

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Mon 12/1

5:10 pm-10:30 pm

1 stop7h 20m

Helena

Thu 12/11

5:30 am-4:01 pm

1 stop8h 31m

$881

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Mon 12/1

2:00 pm-10:30 pm

2 stops10h 30m

Helena

Thu 12/11

5:30 am-4:01 pm

1 stop8h 31m

$886

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Mon 12/1

2:00 pm-10:30 pm

2 stops10h 30m

Helena

Thu 12/11

1:06 pm-11:40 pm

2 stops8h 34m

$958

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sun 12/21

6:43 pm-5:55 pm

1 stop25h 12m

Helena

Sat 12/27

6:32 pm-5:43 pm

1 stop21h 11m

$959

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 11/22

4:17 pm-9:22 pm

1 stop7h 05m

Helena

Sun 11/30

6:40 am-2:55 pm

1 stop6h 15m

$1,104

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 11/22

5:07 pm-1:27 pm

2 stops22h 20m

Helena

Sun 11/30

6:40 am-2:55 pm

1 stop6h 15m

$1,195

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Helena from

How to get the cheapest flight ticket from District of Columbia 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

What is the cheapest day to depart on your flight to Helena?

The cheapest day to depart from District of Columbia to Helena is on a Tuesday. Travelers who choose to depart for Helena on a Tuesday will often find tickets for as low as $545. The most expensive day to fly to Helena is Friday, with ticket prices averaging around $1,026.

What is the cheapest time of day to depart on your flight to Helena?

According to our data, the cheapest time of day to fly to Helena is in the morning. momondo users have found flights departing from District of Columbia to Helena in the morning for as low as $662. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is in the afternoon when prices are around $723.

Cheap District of Columbia to Helena flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Helena

Direct flights

None
There are no direct flights from District of Columbia to Helena. There are no popular flight routes from District of Columbia to Helena.
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  • When did momondo last update prices for flights from District of Columbia to Helena Airport?

    Prices for flights from District of Columbia to Helena Airport are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Helena Airport?

  • How old do you have to be to fly from District of Columbia to Helena Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Helena Airport.

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

    The travel and health documents you'll need for your trip to Helena Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Helena

Compare and see reviews for airlines that fly from District of Columbia to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $408Free CancellationRating
7.4
8,995 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Helena?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from District of Columbia to Helena. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from District of Columbia to Helena with flexible booking policies on momondo?

momondo does allow users to show only those flights to Helena from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Helena?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to Helena.

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

If you are simply researching potential flights to Helena, momondo offers a useful price alert feature which will track prices for flights to Helena from District of Columbia and alert you when they change.

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