How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Helena Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport 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.

$249 Cheap Flights from Washington, D.C. Reagan-National Airport to Helena in 2026/27

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:27 pm - 10:24 pmDCA Washington, D.C. Reagan-National-HLN Helena

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

7:00 am - 5:59 pmHLN Helena-DCA Washington, D.C. Reagan-National

8h 59m2 stops Salt Lake City Cincinnati Cinci./N. Kentucky

$389Delta

Thu, Nov 5 - Thu, Nov 12

11:13 am - 10:24 pmDCA Washington, D.C. Reagan-National-HLN Helena

13h 11m2 stops New York John F Kennedy Intl Salt Lake City

7:00 am - 5:59 pmHLN Helena-DCA Washington, D.C. Reagan-National

8h 59m2 stops Salt Lake City Cincinnati Cinci./N. Kentucky

$389Delta

Thu, Nov 5 - Wed, Nov 11

12:27 pm - 10:24 pmDCA Washington, D.C. Reagan-National-HLN Helena

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

7:00 am - 5:23 pmHLN Helena-DCA Washington, D.C. Reagan-National

8h 23m2 stops Salt Lake City Detroit Metropolitan Wayne County

$389Delta

Thu, Nov 5 - Sat, Nov 14

11:13 am - 10:24 pmDCA Washington, D.C. Reagan-National-HLN Helena

13h 11m2 stops New York John F Kennedy Intl Salt Lake City

7:00 am - 4:40 pmHLN Helena-DCA Washington, D.C. Reagan-National

7h 40m1 stop Salt Lake City

$433Delta

Thu, Nov 5 - Sat, Nov 14

12:27 pm - 10:24 pmDCA Washington, D.C. Reagan-National-HLN Helena

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

7:00 am - 9:47 pmHLN Helena-DCA Washington, D.C. Reagan-National

12h 47m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$457Delta

Thu, Nov 5 - Fri, Nov 13

4:15 pm - 9:32 pmDCA Washington, D.C. Reagan-National-HLN Helena

7h 17m1 stop Denver Intl

6:15 am - 2:55 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 40m1 stop Denver Intl

$499United Airlines

Fri, Jan 8 - Tue, Jan 12

4:09 pm - 9:31 pmDCA Washington, D.C. Reagan-National-HLN Helena

7h 22m1 stop Denver Intl

6:28 am - 2:55 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 27m1 stop Denver Intl

$499United Airlines

Fri, Nov 6 - Sat, Nov 14

11:50 am - 9:32 pmDCA Washington, D.C. Reagan-National-HLN Helena

11h 42m2 stops Chicago O'Hare Intl Denver Intl

6:15 am - 2:55 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 40m1 stop Denver Intl

$504United Airlines

Fri, Jan 8 - Tue, Jan 12

4:15 pm - 9:32 pmDCA Washington, D.C. Reagan-National-HLN Helena

7h 17m1 stop Denver Intl

6:15 am - 2:55 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 40m1 stop Denver Intl

$519United Airlines

Fri, Jan 8 - Tue, Jan 12

11:13 am - 10:24 pmDCA Washington, D.C. Reagan-National-HLN Helena

13h 11m2 stops New York John F Kennedy Intl Salt Lake City

1:07 pm - 10:02 amHLN Helena-DCA Washington, D.C. Reagan-National

18h 55m2 stops Salt Lake City New York John F Kennedy Intl

$523Delta

Thu, Nov 5 - Tue, Nov 10

Cheap last minute flights

Enter your travel dates to find the best prices.

4:18 pm - 9:08 pmDCA Washington, D.C. Reagan-National-HLN Helena

6h 50m1 stop Denver Intl

6:28 am - 2:55 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 27m1 stop Denver Intl

$634United Airlines

Tue, Oct 20 - Sat, Oct 31

11:57 am - 9:08 pmDCA Washington, D.C. Reagan-National-HLN Helena

11h 11m2 stops Chicago O'Hare Intl Denver Intl

6:28 am - 2:55 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 27m1 stop Denver Intl

$639United Airlines

Tue, Oct 20 - Sat, Oct 31

4:18 pm - 9:08 pmDCA Washington, D.C. Reagan-National-HLN Helena

6h 50m1 stop Denver Intl

6:28 am - 2:55 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 27m1 stop Denver Intl

$669United Airlines

Tue, Oct 20 - Sat, Oct 31

6:10 am - 12:28 pmDCA Washington, D.C. Reagan-National-HLN Helena

8h 18m2 stops Detroit Metropolitan Wayne County Salt Lake City

7:15 am - 6:40 pmHLN Helena-DCA Washington, D.C. Reagan-National

9h 25m2 stops Salt Lake City Cincinnati Cinci./N. Kentucky

$884Delta

Fri, Oct 16 - Mon, Oct 19

4:18 pm - 9:08 pmDCA Washington, D.C. Reagan-National-HLN Helena

6h 50m1 stop Denver Intl

6:25 am - 3:04 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 39m1 stop Denver Intl

$935United Airlines

Fri, Oct 16 - Mon, Oct 19

11:57 am - 9:08 pmDCA Washington, D.C. Reagan-National-HLN Helena

11h 11m2 stops Chicago O'Hare Intl Denver Intl

6:25 am - 3:04 pmHLN Helena-DCA Washington, D.C. Reagan-National

6h 39m1 stop Denver Intl

$978United Airlines

Fri, Oct 16 - Mon, Oct 19

8:00 am - 4:49 pmDCA Washington, D.C. Reagan-National-HLN Helena

10h 49m1 stop Seattle/Tacoma Intl

5:21 pm - 5:20 pmHLN Helena-DCA Washington, D.C. Reagan-National

21h 59m1 stop Seattle/Tacoma Intl

$2,298Alaska Airlines

Tue, Oct 20 - Sat, Oct 31

8:00 am - 4:49 pmDCA Washington, D.C. Reagan-National-HLN Helena

10h 49m1 stop Seattle/Tacoma Intl

5:21 pm - 10:00 pmHLN Helena-DCA Washington, D.C. Reagan-National

26h 39m2 stops Seattle/Tacoma Intl San Diego

$2,620Alaska Airlines

Tue, Oct 20 - Sat, Oct 31

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Delta flights from Washington, D.C. Reagan-National Airport to Helena

Our best Delta deals on Washington, D.C. Reagan-National Airport to Helena flight tickets

Delta

Nov 5

DCA11:13 amWashington, D.C. Reagan-National

13h 11m

2 stops

HLN10:24 pmHelena

Nov 11

HLN7:00 amHelena

8h 59m

2 stops

DCA5:59 pmWashington, D.C. Reagan-National

$389

Delta

Nov 5

DCA11:13 amWashington, D.C. Reagan-National

13h 11m

2 stops

HLN10:24 pmHelena

Nov 14

HLN7:00 amHelena

7h 40m

1 stop

DCA4:40 pmWashington, D.C. Reagan-National

$433

Delta

Nov 5

DCA12:27 pmWashington, D.C. Reagan-National

11h 57m

2 stops

HLN10:24 pmHelena

Nov 13

HLN7:00 amHelena

12h 47m

2 stops

DCA9:47 pmWashington, D.C. Reagan-National

$457

United Airlines flights from Washington, D.C. Reagan-National Airport to Helena

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Helena flight tickets

United Airlines

Jan 8

DCA4:15 pmWashington, D.C. Reagan-National

7h 17m

1 stop

HLN9:32 pmHelena

Jan 12

HLN6:15 amHelena

6h 40m

1 stop

DCA2:55 pmWashington, D.C. Reagan-National

$499

United Airlines

Jan 8

DCA11:50 amWashington, D.C. Reagan-National

11h 42m

2 stops

HLN9:32 pmHelena

Jan 12

HLN6:15 amHelena

6h 40m

1 stop

DCA2:55 pmWashington, D.C. Reagan-National

$504

United Airlines

Jan 8

DCA4:15 pmWashington, D.C. Reagan-National

7h 17m

1 stop

HLN9:32 pmHelena

Jan 12

HLN6:15 amHelena

6h 40m

1 stop

DCA2:55 pmWashington, D.C. Reagan-National

$519

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Thu 11/5

12:27 pm-10:24 pm

2 stops11h 57m

Helena

Thu 11/12

7:00 am-5:59 pm

2 stops8h 59m

$389

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Thu 11/5

11:13 am-10:24 pm

2 stops13h 11m

Helena

Wed 11/11

7:00 am-5:59 pm

2 stops8h 59m

$389

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Thu 11/5

12:27 pm-10:24 pm

2 stops11h 57m

Helena

Sat 11/14

7:00 am-5:23 pm

2 stops8h 23m

$389

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Thu 11/5

11:13 am-10:24 pm

2 stops13h 11m

Helena

Sat 11/14

7:00 am-4:40 pm

1 stop7h 40m

$433

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Thu 11/5

12:27 pm-10:24 pm

2 stops11h 57m

Helena

Fri 11/13

7:00 am-9:47 pm

2 stops12h 47m

$457

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Fri 1/8

4:15 pm-9:32 pm

1 stop7h 17m

Helena

Tue 1/12

6:15 am-2:55 pm

1 stop6h 40m

$499

Quickest round-trip

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Fri 11/6

4:09 pm-9:31 pm

1 stop7h 22m

Helena

Sat 11/14

6:28 am-2:55 pm

1 stop6h 27m

$499

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Fri 1/8

11:50 am-9:32 pm

2 stops11h 42m

Helena

Tue 1/12

6:15 am-2:55 pm

1 stop6h 40m

$504

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Fri 1/8

4:15 pm-9:32 pm

1 stop7h 17m

Helena

Tue 1/12

6:15 am-2:55 pm

1 stop6h 40m

$519

Washington, D.C.Helena

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

DCAHLN

Washington, D.C. Reagan-National

Thu 11/5

11:13 am-10:24 pm

2 stops13h 11m

Helena

Tue 11/10

1:07 pm-10:02 am

2 stops18h 55m

$523

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 Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National to Helena?

Alaska Airlines is the most popular carrier operating from Washington, D.C. Reagan-National to Helena

What airlines fly to Helena?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Helena from Washington, D.C. Reagan-National Airport according to our data. American Airlines is the first choice among our users, with 35% 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.

When to book flights from Washington, D.C. Reagan-National Airport to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Helena according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Helena (DCA to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Helena

Best Price Found	$249
Fastest flight time	6h 50m
Direct flights	None

The best one-way flight to Helena from Washington, D.C. Reagan-National Airport in the past 72 hours is $249. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Helena found on momondo in the last 72 hours is $389.

The fastest flight from Washington, D.C. Reagan-National Airport to Helena takes 6h 50m

There are no direct flights from Washington, D.C. Reagan-National Airport to Helena. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Helena.

Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Helena

How far is Washington, D.C. Reagan-National to Helena by plane?
The straight-line distance from Washington, D.C. Reagan-National to Helena is 1837.0 mi. A reasonable flight in good conditions will take 6h 50m.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Helena Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to Helena Airport refresh daily.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Helena Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport 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.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Helena?

It is quick and easy to find Washington, D.C. 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 Washington, D.C. to Helena with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Helena from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Helena?

momondo provides multiple filters to help you find the best flight to Helena from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Washington, D.C. to Helena flights. All you need is a valid email address and we will do the rest; it is that quick and easy.