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?

As of July 2026, there is 1 operator available to choose from 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.

$210 Cheap Flights from District of Columbia to Helena in 2026

Discover deals from 900+ travel sites with momondo.

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 - 12:15 pm

IAD

HLN

7h 15m

1 stop

12:55 pm - 11:39 pm

HLN

IAD

8h 44m

1 stop

$349Delta

Thu, Aug 27 - Fri, Aug 28

12:23 pm - 10:30 pm

DCA

HLN

12h 07m

2 stops

5:40 am - 4:44 pm

HLN

DCA

9h 04m

1 stop

$354Delta

Wed, Aug 19 - Tue, Aug 25

7:00 am - 12:15 pm

IAD

HLN

7h 15m

1 stop

12:55 pm - 11:39 pm

HLN

IAD

8h 44m

1 stop

$374Delta

Thu, Aug 27 - Wed, Sep 2

12:29 pm - 10:30 pm

IAD

HLN

12h 01m

2 stops

12:55 pm - 11:39 pm

HLN

IAD

8h 44m

1 stop

$379Delta

Fri, Aug 28 - Wed, Sep 2

7:00 am - 12:15 pm

IAD

HLN

7h 15m

1 stop

12:55 pm - 12:34 am

HLN

IAD

9h 39m

2 stops

$404Delta

Thu, Aug 27 - Fri, Aug 28

7:00 am - 4:41 pm

IAD

HLN

11h 41m

1 stop

5:18 pm - 5:40 am

HLN

IAD

10h 22m

1 stop

$419Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

7:00 am - 12:15 pm

IAD

HLN

7h 15m

1 stop

12:55 pm - 11:39 pm

HLN

IAD

8h 44m

1 stop

$424Delta

Tue, Aug 25 - Mon, Aug 31

7:00 am - 12:15 pm

IAD

HLN

7h 15m

1 stop

5:40 am - 11:26 pm

HLN

IAD

15h 46m

2 stops

$427Delta

Thu, Aug 27 - Tue, Sep 1

4:20 pm - 9:30 pm

DCA

HLN

7h 10m

1 stop

6:15 am - 3:06 pm

HLN

DCA

6h 51m

1 stop

$503United Airlines

Sat, Aug 22 - Sat, Aug 29

4:07 pm - 9:39 pm

DCA

HLN

7h 32m

1 stop

6:15 am - 2:56 pm

HLN

DCA

6h 41m

1 stop

$514United Airlines

Sat, Nov 14 - Tue, Nov 17

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Alaska Airlines flights from District of Columbia to Helena

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

Alaska Airlines

Sep 9

IAD7:00 amWashington, D.C. Dulles Intl

11h 41m

1 stop

HLN4:41 pmHelena

Sep 23

HLN5:18 pmHelena

10h 22m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

$419

Alaska Airlines

Sep 16

IAD7:00 amWashington, D.C. Dulles Intl

11h 41m

1 stop

HLN4:41 pmHelena

Sep 30

HLN5:18 pmHelena

10h 22m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

$470

Alaska Airlines

Sep 9

IAD7:00 amWashington, D.C. Dulles Intl

11h 41m

1 stop

HLN4:41 pmHelena

Sep 23

HLN5:18 pmHelena

22h 56m

2 stops

IAD6:14 pmWashington, D.C. Dulles Intl

$475

Delta flights from District of Columbia to Helena

Our best Delta deals on District of Columbia to Helena flight tickets

Delta

Aug 27

IAD7:00 amWashington, D.C. Dulles Intl

7h 15m

1 stop

HLN12:15 pmHelena

Aug 28

HLN12:55 pmHelena

8h 44m

1 stop

IAD11:39 pmWashington, D.C. Dulles Intl

$349

Delta

Aug 19

DCA12:23 pmWashington, D.C. Reagan-National

12h 07m

2 stops

HLN10:30 pmHelena

Aug 25

HLN5:40 amHelena

9h 04m

1 stop

DCA4:44 pmWashington, D.C. Reagan-National

$354

Delta

Aug 27

IAD7:00 amWashington, D.C. Dulles Intl

7h 15m

1 stop

HLN12:15 pmHelena

Sep 2

HLN12:55 pmHelena

8h 44m

1 stop

IAD11:39 pmWashington, D.C. Dulles Intl

$374

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

Cheapest round-trip

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 8/27

7:00 am-12:15 pm

1 stop7h 15m

Helena

Fri 8/28

12:55 pm-11:39 pm

1 stop8h 44m

$349

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Wed 8/19

12:23 pm-10:30 pm

2 stops12h 07m

Helena

Tue 8/25

5:40 am-4:44 pm

1 stop9h 04m

$354

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 8/27

7:00 am-12:15 pm

1 stop7h 15m

Helena

Wed 9/2

12:55 pm-11:39 pm

1 stop8h 44m

$374

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Fri 8/28

12:29 pm-10:30 pm

2 stops12h 01m

Helena

Wed 9/2

12:55 pm-11:39 pm

1 stop8h 44m

$379

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 8/27

7:00 am-12:15 pm

1 stop7h 15m

Helena

Fri 8/28

12:55 pm-12:34 am

2 stops9h 39m

$404

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Wed 9/9

7:00 am-4:41 pm

1 stop11h 41m

Helena

Wed 9/23

5:18 pm-5:40 am

1 stop10h 22m

$419

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Tue 8/25

7:00 am-12:15 pm

1 stop7h 15m

Helena

Mon 8/31

12:55 pm-11:39 pm

1 stop8h 44m

$424

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Thu 8/27

7:00 am-12:15 pm

1 stop7h 15m

Helena

Tue 9/1

5:40 am-11:26 pm

2 stops15h 46m

$427

Quickest round-trip

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 8/22

4:20 pm-9:30 pm

1 stop7h 10m

Helena

Sat 8/29

6:15 am-3:06 pm

1 stop6h 51m

$503

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 11/14

4:07 pm-9:39 pm

1 stop7h 32m

Helena

Tue 11/17

6:15 am-2:56 pm

1 stop6h 41m

$514

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 and Delta are the most popular carriers operating from District of Columbia to Helena

What airlines fly to Helena?

United Airlines, American Airlines and Delta 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 56% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 4 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 54m
Direct flights	None

The fastest flight from District of Columbia to Helena takes 6h 54m

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

Frequently asked questions about flying from District of Columbia to Helena

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?
As of July 2026, there is 1 operator available to choose from 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 Airlines	PriceFrom $378	Free Cancellation	Rating 7.4 9,909 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.