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.

$310 Cheap Flights from Washington, D.C. Reagan-National Airport to Helena in 2026

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

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 4:21 pm

HLN

DCA

8h 36m

1 stop

$401Delta

Tue, Aug 18 - Sat, Aug 29

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 6:00 pm

HLN

DCA

10h 15m

2 stops

$406Delta

Tue, Aug 18 - Sat, Aug 29

6:05 am - 12:23 pm

DCA

HLN

8h 18m

2 stops

5:45 am - 6:59 pm

HLN

DCA

11h 14m

2 stops

$411Delta

Thu, May 28 - Wed, Jun 3

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 4:21 pm

HLN

DCA

8h 36m

1 stop

$428Delta

Sat, Aug 15 - Sun, Aug 30

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 6:23 pm

HLN

DCA

10h 38m

2 stops

$433Delta

Sat, Aug 15 - Sat, Aug 29

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 4:21 pm

HLN

DCA

8h 36m

1 stop

$468Delta

Wed, Aug 19 - Sat, Aug 29

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 4:21 pm

HLN

DCA

8h 36m

1 stop

$470Delta

Thu, Aug 20 - Sat, Aug 29

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 9:21 pm

HLN

DCA

13h 36m

2 stops

$473Delta

Wed, Aug 19 - Sat, Aug 29

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 9:21 pm

HLN

DCA

13h 36m

2 stops

$475Delta

Thu, Aug 20 - Sat, Aug 29

5:00 pm - 10:34 pm

DCA

HLN

7h 34m

1 stop

5:45 am - 4:21 pm

HLN

DCA

8h 36m

1 stop

$480Delta

Fri, Aug 14 - Sun, Aug 30

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

Aug 18

DCA5:00 pmWashington, D.C. Reagan-National

7h 34m

1 stop

HLN10:34 pmHelena

Aug 29

HLN5:45 amHelena

8h 36m

1 stop

DCA4:21 pmWashington, D.C. Reagan-National

$401

Delta

Aug 18

DCA5:00 pmWashington, D.C. Reagan-National

7h 34m

1 stop

HLN10:34 pmHelena

Aug 29

HLN5:45 amHelena

10h 15m

2 stops

DCA6:00 pmWashington, D.C. Reagan-National

$406

Delta

May 28

DCA6:05 amWashington, D.C. Reagan-National

8h 18m

2 stops

HLN12:23 pmHelena

Jun 3

HLN5:45 amHelena

11h 14m

2 stops

DCA6:59 pmWashington, D.C. Reagan-National

$411

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

Apr 1

DCA4:11 pmWashington, D.C. Reagan-National

7h 22m

1 stop

HLN9:33 pmHelena

Apr 4

HLN6:15 amHelena

6h 44m

1 stop

DCA2:59 pmWashington, D.C. Reagan-National

$694

United Airlines

Apr 1

DCA4:11 pmWashington, D.C. Reagan-National

7h 22m

1 stop

HLN9:33 pmHelena

Apr 5

HLN6:15 amHelena

6h 44m

1 stop

DCA2:59 pmWashington, D.C. Reagan-National

$744

United Airlines

Apr 3

DCA4:11 pmWashington, D.C. Reagan-National

7h 22m

1 stop

HLN9:33 pmHelena

Apr 7

HLN6:15 amHelena

6h 44m

1 stop

DCA2:59 pmWashington, D.C. Reagan-National

$910

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

Quickest round-trip

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Tue 8/18

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sat 8/29

5:45 am-4:21 pm

1 stop8h 36m

$401

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Tue 8/18

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sat 8/29

5:45 am-6:00 pm

2 stops10h 15m

$406

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Thu 5/28

6:05 am-12:23 pm

2 stops8h 18m

Helena

Wed 6/3

5:45 am-6:59 pm

2 stops11h 14m

$411

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 8/15

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sun 8/30

5:45 am-4:21 pm

1 stop8h 36m

$428

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 8/15

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sat 8/29

5:45 am-6:23 pm

2 stops10h 38m

$433

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Wed 8/19

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sat 8/29

5:45 am-4:21 pm

1 stop8h 36m

$468

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Thu 8/20

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sat 8/29

5:45 am-4:21 pm

1 stop8h 36m

$470

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Wed 8/19

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sat 8/29

5:45 am-9:21 pm

2 stops13h 36m

$473

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Thu 8/20

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sat 8/29

5:45 am-9:21 pm

2 stops13h 36m

$475

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Fri 8/14

5:00 pm-10:34 pm

1 stop7h 34m

Helena

Sun 8/30

5:45 am-4:21 pm

1 stop8h 36m

$480

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 and United Airlines are the most popular carriers 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 51% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 3 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

Fastest flight time	7h 07m
Direct flights	None

The fastest flight from Washington, D.C. Reagan-National Airport to Helena takes 7h 07m

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

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 7h 07m.
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.