When did momondo last update prices for flights from Helena Airport to District of Columbia?

Prices for flights from Helena Airport to District of Columbia refresh daily.

How many operators does momondo search for flights from Helena Airport to District of Columbia?

As of April 2026, there is 1 operator available to choose from for flights from Helena Airport to District of Columbia.

How old do you have to be to fly from Helena Airport to District of Columbia?

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 Helena Airport to District of Columbia.

What documentation or ID do you need to fly to District of Columbia?

The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$248 Cheap Flights from Helena to District of Columbia in 2026

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Find the cheapest flights from Helena to District of Columbia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:03 pm - 11:32 pm

HLN

IAD

8h 29m

1 stop

7:30 am - 12:23 pm

IAD

HLN

6h 53m

1 stop

$273Delta

Thu, May 7 - Tue, May 12

1:03 pm - 11:32 pm

HLN

IAD

8h 29m

1 stop

10:11 am - 10:33 pm

IAD

HLN

14h 22m

2 stops

$360Delta

Thu, May 7 - Tue, May 12

1:03 pm - 11:32 pm

HLN

IAD

8h 29m

1 stop

7:30 am - 12:23 pm

IAD

HLN

6h 53m

1 stop

$369Delta

Thu, May 7 - Tue, May 12

1:03 pm - 11:32 pm

HLN

IAD

8h 29m

1 stop

7:30 am - 12:23 pm

IAD

HLN

6h 53m

1 stop

$394Delta

Thu, May 7 - Tue, May 12

6:22 pm - 5:50 am

HLN

IAD

9h 28m

1 stop

6:47 pm - 5:45 pm

IAD

HLN

24h 58m

2 stops

$441Alaska Airlines

Thu, Apr 30 - Mon, May 4

6:22 pm - 12:09 am

HLN

IAD

27h 47m

1 stop

9:00 am - 5:45 pm

IAD

HLN

10h 45m

1 stop

$452Alaska Airlines

Sat, Apr 25 - Wed, Apr 29

6:22 pm - 12:09 am

HLN

IAD

27h 47m

1 stop

9:00 am - 5:45 pm

IAD

HLN

10h 45m

1 stop

$456Alaska Airlines

Sat, Apr 25 - Wed, Apr 29

6:22 pm - 5:41 pm

HLN

IAD

21h 19m

2 stops

7:10 am - 5:45 pm

IAD

HLN

12h 35m

1 stop

$461Alaska Airlines

Thu, Apr 30 - Mon, May 4

6:22 pm - 5:40 am

HLN

IAD

9h 18m

1 stop

7:20 pm - 5:45 pm

IAD

HLN

24h 25m

1 stop

$470Alaska Airlines

Tue, Apr 21 - Fri, Apr 24

6:22 pm - 12:09 am

HLN

IAD

27h 47m

1 stop

9:00 am - 5:45 pm

IAD

HLN

10h 45m

1 stop

$476Alaska Airlines

Sat, Apr 25 - Wed, Apr 29

Alaska Airlines flights from Helena to District of Columbia

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

Alaska Airlines

Apr 30

HLN6:22 pmHelena

9h 28m

1 stop

IAD5:50 amWashington, D.C. Dulles Intl

May 4

IAD6:47 pmWashington, D.C. Dulles Intl

24h 58m

2 stops

HLN5:45 pmHelena

$441

Alaska Airlines

Apr 25

HLN6:22 pmHelena

27h 47m

1 stop

IAD12:09 amWashington, D.C. Dulles Intl

Apr 29

IAD9:00 amWashington, D.C. Dulles Intl

10h 45m

1 stop

HLN5:45 pmHelena

$452

Alaska Airlines

Apr 25

HLN6:22 pmHelena

27h 47m

1 stop

IAD12:09 amWashington, D.C. Dulles Intl

Apr 29

IAD9:00 amWashington, D.C. Dulles Intl

10h 45m

1 stop

HLN5:45 pmHelena

$456

Delta flights from Helena to District of Columbia

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

Delta

May 7

HLN1:03 pmHelena

8h 29m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

May 12

IAD7:30 amWashington, D.C. Dulles Intl

6h 53m

1 stop

HLN12:23 pmHelena

$273

Delta

May 7

HLN1:03 pmHelena

8h 29m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

May 12

IAD10:11 amWashington, D.C. Dulles Intl

14h 22m

2 stops

HLN10:33 pmHelena

$360

Delta

May 7

HLN1:03 pmHelena

8h 29m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

May 12

IAD7:30 amWashington, D.C. Dulles Intl

6h 53m

1 stop

HLN12:23 pmHelena

$369

momondo Fare Finder

Use the filters below to find and compare flights from Helena to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 5/7

1:03 pm-11:32 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Tue 5/12

7:30 am-12:23 pm

1 stop6h 53m

$273

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 5/7

1:03 pm-11:32 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Tue 5/12

10:11 am-10:33 pm

2 stops14h 22m

$360

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 5/7

1:03 pm-11:32 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Tue 5/12

7:30 am-12:23 pm

1 stop6h 53m

$369

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 5/7

1:03 pm-11:32 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Tue 5/12

7:30 am-12:23 pm

1 stop6h 53m

$394

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 4/30

6:22 pm-5:50 am

1 stop9h 28m

Washington, D.C. Dulles Intl

Mon 5/4

6:47 pm-5:45 pm

2 stops24h 58m

$441

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Sat 4/25

6:22 pm-12:09 am

1 stop27h 47m

Washington, D.C. Dulles Intl

Wed 4/29

9:00 am-5:45 pm

1 stop10h 45m

$452

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Sat 4/25

6:22 pm-12:09 am

1 stop27h 47m

Washington, D.C. Dulles Intl

Wed 4/29

9:00 am-5:45 pm

1 stop10h 45m

$456

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Thu 4/30

6:22 pm-5:41 pm

2 stops21h 19m

Washington, D.C. Dulles Intl

Mon 5/4

7:10 am-5:45 pm

1 stop12h 35m

$461

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Tue 4/21

6:22 pm-5:40 am

1 stop9h 18m

Washington, D.C. Dulles Intl

Fri 4/24

7:20 pm-5:45 pm

1 stop24h 25m

$470

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Sat 4/25

6:22 pm-12:09 am

1 stop27h 47m

Washington, D.C. Dulles Intl

Wed 4/29

9:00 am-5:45 pm

1 stop10h 45m

$476

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Helena to District of Columbia

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 Helena to District of Columbia?

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

What airlines fly to District of Columbia?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to District of Columbia from Helena according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 5 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

Cheap Helena to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to District of Columbia

Fastest flight time	6h 44m
Direct flights	None

The fastest flight from Helena to District of Columbia takes 6h 44m

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

Search flight deals

Frequently asked questions about flying from Helena to District of Columbia

When did momondo last update prices for flights from Helena Airport to District of Columbia?
Prices for flights from Helena Airport to District of Columbia refresh daily.
How many operators does momondo search for flights from Helena Airport to District of Columbia?
As of April 2026, there is 1 operator available to choose from for flights from Helena Airport to District of Columbia.
How old do you have to be to fly from Helena Airport to District of Columbia?
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 Helena Airport to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Helena to District of Columbia

Compare and see reviews for airlines that fly from Helena to District of Columbia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $348	Free Cancellation	Rating 7.4 9,529 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Helena to District of Columbia?

It is quick and easy to find Helena to District of Columbia 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 District of Columbia that suits you.

Can I find flights from Helena to District of Columbia with flexible booking policies on momondo?

momondo does allow users to show only those flights to District of Columbia from Helena which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Helena to District of Columbia?

Once you have performed a search for Helena to District of Columbia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Helena to District of Columbia right now. Can momondo alert me if prices change?

Price alerts on flights to District of Columbia from Helena are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.