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 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.

$155 Cheap Flights from District of Columbia to Helena in 2026

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Find the cheapest flights from District of Columbia to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 5:45 pm

IAD

HLN

12h 45m

1 stop

6:22 pm - 5:40 am

HLN

IAD

9h 18m

1 stop

$309Alaska Airlines

Thu, Apr 9 - Thu, Apr 16

7:00 am - 5:45 pm

IAD

HLN

12h 45m

1 stop

6:22 pm - 5:22 pm

HLN

IAD

21h 00m

2 stops

$431Alaska Airlines

Thu, Apr 9 - Thu, Apr 16

4:00 pm - 9:25 pm

IAD

HLN

7h 25m

1 stop

2:30 pm - 11:20 pm

HLN

IAD

6h 50m

1 stop

$515United Airlines

Fri, Mar 13 - Tue, Mar 17

10:06 am - 10:30 pm

IAD

HLN

14h 24m

2 stops

1:04 pm - 11:44 pm

HLN

IAD

8h 40m

1 stop

$524Delta

Thu, Apr 9 - Thu, Apr 16

12:38 pm - 10:27 pm

IAD

HLN

11h 49m

2 stops

1:02 pm - 12:27 am

HLN

IAD

9h 25m

2 stops

$529Delta

Fri, Mar 6 - Tue, Mar 10

2:12 pm - 9:25 pm

IAD

HLN

9h 13m

1 stop

6:15 am - 4:40 pm

HLN

IAD

8h 25m

1 stop

$539United Airlines

Fri, Mar 6 - Tue, Mar 10

2:12 pm - 9:25 pm

IAD

HLN

9h 13m

1 stop

6:15 am - 4:40 pm

HLN

IAD

8h 25m

1 stop

$574United Airlines

Fri, Mar 6 - Tue, Mar 10

12:38 pm - 10:27 pm

IAD

HLN

11h 49m

2 stops

1:02 pm - 11:40 pm

HLN

IAD

8h 38m

1 stop

$594Delta

Fri, Mar 6 - Tue, Mar 10

12:14 pm - 10:30 pm

IAD

HLN

12h 16m

2 stops

1:02 pm - 11:40 pm

HLN

IAD

8h 38m

1 stop

$624Delta

Wed, Mar 18 - Fri, Mar 20

4:11 pm - 9:25 pm

DCA

HLN

7h 14m

1 stop

6:15 am - 8:59 pm

HLN

DCA

12h 44m

2 stops

$721United Airlines

Mon, Mar 16 - Thu, Mar 19

United Airlines flights from District of Columbia to Helena

Our best United Airlines deals on District of Columbia to Helena flight tickets

United Airlines

Mar 13

IAD4:00 pmWashington, D.C. Dulles Intl

7h 25m

1 stop

HLN9:25 pmHelena

Mar 17

HLN2:30 pmHelena

6h 50m

1 stop

IAD11:20 pmWashington, D.C. Dulles Intl

$515

United Airlines

Mar 6

IAD2:12 pmWashington, D.C. Dulles Intl

9h 13m

1 stop

HLN9:25 pmHelena

Mar 10

HLN6:15 amHelena

8h 25m

1 stop

IAD4:40 pmWashington, D.C. Dulles Intl

$539

United Airlines

Mar 6

IAD2:12 pmWashington, D.C. Dulles Intl

9h 13m

1 stop

HLN9:25 pmHelena

Mar 10

HLN6:15 amHelena

8h 25m

1 stop

IAD4:40 pmWashington, D.C. Dulles Intl

$574

Alaska Airlines flights from District of Columbia to Helena

Our best Alaska Airlines deals on District of Columbia to Helena flight tickets

Alaska Airlines

Apr 9

IAD7:00 amWashington, D.C. Dulles Intl

12h 45m

1 stop

HLN5:45 pmHelena

Apr 16

HLN6:22 pmHelena

9h 18m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

$309

Alaska Airlines

Apr 9

IAD7:00 amWashington, D.C. Dulles Intl

12h 45m

1 stop

HLN5:45 pmHelena

Apr 16

HLN6:22 pmHelena

21h 00m

2 stops

IAD5:22 pmWashington, D.C. Dulles Intl

$431

Alaska Airlines

Mar 16

IAD7:05 amWashington, D.C. Dulles Intl

10h 54m

1 stop

HLN3:59 pmHelena

Mar 19

HLN6:22 pmHelena

9h 18m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

$635

momondo Fare Finder

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 4/9

7:00 am-5:45 pm

1 stop12h 45m

Helena

Thu 4/16

6:22 pm-5:40 am

1 stop9h 18m

$309

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 4/9

7:00 am-5:45 pm

1 stop12h 45m

Helena

Thu 4/16

6:22 pm-5:22 pm

2 stops21h 00m

$431

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/13

4:00 pm-9:25 pm

1 stop7h 25m

Helena

Tue 3/17

2:30 pm-11:20 pm

1 stop6h 50m

$515

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 4/9

10:06 am-10:30 pm

2 stops14h 24m

Helena

Thu 4/16

1:04 pm-11:44 pm

1 stop8h 40m

$524

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/6

12:38 pm-10:27 pm

2 stops11h 49m

Helena

Tue 3/10

1:02 pm-12:27 am

2 stops9h 25m

$529

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/6

2:12 pm-9:25 pm

1 stop9h 13m

Helena

Tue 3/10

6:15 am-4:40 pm

1 stop8h 25m

$539

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/6

2:12 pm-9:25 pm

1 stop9h 13m

Helena

Tue 3/10

6:15 am-4:40 pm

1 stop8h 25m

$574

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 3/6

12:38 pm-10:27 pm

2 stops11h 49m

Helena

Tue 3/10

1:02 pm-11:40 pm

1 stop8h 38m

$594

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Wed 3/18

12:14 pm-10:30 pm

2 stops12h 16m

Helena

Fri 3/20

1:02 pm-11:40 pm

1 stop8h 38m

$624

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Mon 3/16

4:11 pm-9:25 pm

1 stop7h 14m

Helena

Thu 3/19

6:15 am-8:59 pm

2 stops12h 44m

$721

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 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 airline that flies from District of Columbia to Helena?

United Airlines, Alaska Airlines, and Delta are the most popular carriers operating from District of Columbia to Helena

What airlines fly to Helena?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Helena from District of Columbia according to our data. United Airlines is the first choice among our users, with 49% 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.

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

Fastest flight time	6h 58m
Direct flights	None

The fastest flight from District of Columbia to Helena takes 6h 58m

There are no direct flights from District of Columbia to Helena. There are no popular flight routes from District of Columbia to Helena.

Search flight deals

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 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 Airlines	PriceFrom $378	Free Cancellation	Rating 7.4 9,370 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.