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.

$190 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.

8:22 am - 1:42 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 20m1 stop Denver Intl

2:27 pm - 12:59 amHLN Helena-IAD Washington, D.C. Dulles Intl

8h 32m1 stop Denver Intl

$383United Airlines

Sun, Dec 13 - Sun, Dec 20

7:00 am - 12:17 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 17m1 stop Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$394Delta

Wed, Sep 16 - Wed, Sep 30

11:10 am - 10:24 pmDCA Washington, D.C. Reagan-National-HLN Helena

13h 14m2 stops New York John F Kennedy Intl Salt Lake City

7:15 am - 4:49 pmHLN Helena-DCA Washington, D.C. Reagan-National

7h 34m1 stop Salt Lake City

$399Delta

Wed, Sep 9 - Wed, Sep 16

7:00 am - 12:17 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 17m1 stop Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$429Delta

Wed, Sep 16 - Wed, Sep 30

6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena

8h 15m1 stop Salt Lake City

1:08 pm - 11:35 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 27m1 stop Salt Lake City

$429Delta

Fri, Oct 23 - Tue, Oct 27

4:15 pm - 9:30 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 15m1 stop Denver Intl

2:26 pm - 11:19 pmHLN Helena-IAD Washington, D.C. Dulles Intl

6h 53m1 stop Denver Intl

$432United Airlines

Wed, Sep 9 - Wed, Sep 16

6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena

8h 15m1 stop Salt Lake City

1:08 pm - 12:42 amHLN Helena-IAD Washington, D.C. Dulles Intl

9h 34m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$434Delta

Fri, Oct 23 - Tue, Oct 27

9:03 am - 4:41 pmIAD Washington, D.C. Dulles Intl-HLN Helena

9h 38m1 stop Seattle/Tacoma Intl

5:18 pm - 5:40 amHLN Helena-IAD Washington, D.C. Dulles Intl

10h 22m1 stop Seattle/Tacoma Intl

$449Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

7:00 am - 4:41 pmIAD Washington, D.C. Dulles Intl-HLN Helena

11h 41m1 stop Seattle/Tacoma Intl

5:18 pm - 5:40 amHLN Helena-IAD Washington, D.C. Dulles Intl

10h 22m1 stop Seattle/Tacoma Intl

$449Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

7:00 am - 12:17 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 17m1 stop Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$452Delta

Wed, Sep 16 - Wed, Sep 30

Cheap last minute flights

Enter your travel dates to find the best prices.

4:20 pm - 9:30 pmDCA Washington, D.C. Reagan-National-HLN Helena

7h 10m1 stop Denver Intl

6:15 am - 3:03 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 48m1 stop Denver Intl

$474United Airlines

Sat, Aug 29 - Sat, Sep 5

7:00 am - 12:15 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 15m1 stop Salt Lake City

12:55 pm - 11:39 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 44m1 stop Salt Lake City

$474Delta

Sat, Aug 29 - Sun, Sep 6

3:00 pm - 10:30 pmDCA Washington, D.C. Reagan-National-HLN Helena

9h 30m2 stops Minneapolis St Paul Salt Lake City

5:40 am - 4:44 pmHLN Helena-DCA Washington, D.C. Reagan-National

9h 04m1 stop Salt Lake City

$479Delta

Sat, Aug 29 - Sun, Sep 6

12:33 pm - 10:30 pmDCA Washington, D.C. Reagan-National-HLN Helena

11h 57m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:50 am - 4:44 pmHLN Helena-DCA Washington, D.C. Reagan-National

7h 54m1 stop Salt Lake City

$479Delta

Sat, Aug 29 - Sat, Sep 5

12:29 pm - 10:30 pmIAD Washington, D.C. Dulles Intl-HLN Helena

12h 01m2 stops New York John F Kennedy Intl Salt Lake City

12:55 pm - 11:39 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 44m1 stop Salt Lake City

$479Delta

Sat, Aug 29 - Sun, Sep 6

7:00 am - 12:15 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 15m1 stop Salt Lake City

12:55 pm - 12:34 amHLN Helena-IAD Washington, D.C. Dulles Intl

9h 39m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$479Delta

Sat, Aug 29 - Sat, Sep 5

6:10 am - 12:15 pmDCA Washington, D.C. Reagan-National-HLN Helena

8h 05m2 stops Detroit Metropolitan Wayne County Salt Lake City

5:40 am - 6:09 pmHLN Helena-DCA Washington, D.C. Reagan-National

10h 29m2 stops Salt Lake City Minneapolis St Paul

$484Delta

Sat, Aug 29 - Sun, Sep 6

12:33 pm - 10:30 pmDCA Washington, D.C. Reagan-National-HLN Helena

11h 57m2 stops Detroit Metropolitan Wayne County Salt Lake City

6:50 am - 7:34 pmHLN Helena-DCA Washington, D.C. Reagan-National

10h 44m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$484Delta

Sat, Aug 29 - Sat, Sep 5

12:30 pm - 10:30 pmIAD Washington, D.C. Dulles Intl-HLN Helena

12h 00m2 stops Detroit Metropolitan Wayne County Salt Lake City

12:55 pm - 12:34 amHLN Helena-IAD Washington, D.C. Dulles Intl

9h 39m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$484Delta

Sat, Aug 29 - Sat, Sep 5

9:03 am - 4:34 pmIAD Washington, D.C. Dulles Intl-HLN Helena

9h 31m1 stop Seattle/Tacoma Intl

5:11 pm - 5:40 amHLN Helena-IAD Washington, D.C. Dulles Intl

10h 29m1 stop Seattle/Tacoma Intl

$529Alaska Airlines

Tue, Sep 1 - Thu, Sep 3

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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 13

IAD8:22 amWashington, D.C. Dulles Intl

7h 20m

1 stop

HLN1:42 pmHelena

Dec 20

HLN2:27 pmHelena

8h 32m

1 stop

IAD12:59 amWashington, D.C. Dulles Intl

$383

United Airlines

Sep 9

IAD4:15 pmWashington, D.C. Dulles Intl

7h 15m

1 stop

HLN9:30 pmHelena

Sep 16

HLN2:26 pmHelena

6h 53m

1 stop

IAD11:19 pmWashington, D.C. Dulles Intl

$432

United Airlines

Jan 30

IAD2:25 pmWashington, D.C. Dulles Intl

8h 34m

1 stop

HLN8:59 pmHelena

Feb 3

HLN2:30 pmHelena

6h 43m

1 stop

IAD11:13 pmWashington, D.C. Dulles Intl

$459

Delta flights from District of Columbia to Helena

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

Delta

Sep 16

IAD7:00 amWashington, D.C. Dulles Intl

7h 17m

1 stop

HLN12:17 pmHelena

Sep 30

HLN12:57 pmHelena

8h 46m

1 stop

IAD11:43 pmWashington, D.C. Dulles Intl

$394

Delta

Sep 9

DCA11:10 amWashington, D.C. Reagan-National

13h 14m

2 stops

HLN10:24 pmHelena

Sep 16

HLN7:15 amHelena

7h 34m

1 stop

DCA4:49 pmWashington, D.C. Reagan-National

$399

Delta

Sep 16

IAD7:00 amWashington, D.C. Dulles Intl

7h 17m

1 stop

HLN12:17 pmHelena

Sep 30

HLN12:57 pmHelena

8h 46m

1 stop

IAD11:43 pmWashington, D.C. Dulles Intl

$429

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 Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Sun 12/13

8:22 am-1:42 pm

1 stop7h 20m

Helena

Sun 12/20

2:27 pm-12:59 am

1 stop8h 32m

$383

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Wed 9/16

7:00 am-12:17 pm

1 stop7h 17m

Helena

Wed 9/30

12:57 pm-11:43 pm

1 stop8h 46m

$394

Washington, D.C.Helena

DCA Washington, D.C. Reagan-National - HLN Helena

DCAHLN

Washington, D.C. Reagan-National

Wed 9/9

11:10 am-10:24 pm

2 stops13h 14m

Helena

Wed 9/16

7:15 am-4:49 pm

1 stop7h 34m

$399

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Wed 9/16

7:00 am-12:17 pm

1 stop7h 17m

Helena

Wed 9/30

12:57 pm-11:43 pm

1 stop8h 46m

$429

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Fri 10/23

6:13 am-12:28 pm

1 stop8h 15m

Helena

Tue 10/27

1:08 pm-11:35 pm

1 stop8h 27m

$429

Quickest round-trip

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Wed 9/9

4:15 pm-9:30 pm

1 stop7h 15m

Helena

Wed 9/16

2:26 pm-11:19 pm

1 stop6h 53m

$432

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Fri 10/23

6:13 am-12:28 pm

1 stop8h 15m

Helena

Tue 10/27

1:08 pm-12:42 am

2 stops9h 34m

$434

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Wed 9/9

9:03 am-4:41 pm

1 stop9h 38m

Helena

Wed 9/23

5:18 pm-5:40 am

1 stop10h 22m

$449

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

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

$449

Washington, D.C.Helena

IAD Washington, D.C. Dulles Intl - HLN Helena

IADHLN

Washington, D.C. Dulles Intl

Wed 9/16

7:00 am-12:17 pm

1 stop7h 17m

Helena

Wed 9/30

12:57 pm-11:43 pm

1 stop8h 46m

$452

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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, 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 59% 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

Best Price Found	$190
Fastest flight time	6h 52m
Direct flights	None

The best one-way flight to Helena from District of Columbia in the past 72 hours is $190. The best round-trip flight deal from District of Columbia to Helena found on momondo in the last 72 hours is $383.

The fastest flight from District of Columbia to Helena takes 6h 52m

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 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 10,123 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.