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 59% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 4 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

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

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 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.

$195 Cheap Flights from Helena to District of Columbia in 2025/26

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Find the cheapest flights from Helena to District of Columbia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:36 pm - 9:59 pm

HLN

DCA

27h 23m1 stop

8:00 am - 3:59 pm

DCA

HLN

9h 59m1 stop

$349Alaska Airlines

Wed, Feb 18 - Sat, Feb 21

4:36 pm - 9:59 pm

HLN

DCA

27h 23m1 stop

8:00 am - 3:59 pm

DCA

HLN

9h 59m1 stop

$369Alaska Airlines

Wed, Feb 18 - Sat, Feb 21

4:36 pm - 9:59 pm

HLN

DCA

27h 23m1 stop

8:00 am - 3:59 pm

DCA

HLN

9h 59m1 stop

$409Alaska Airlines

Wed, Feb 18 - Sat, Feb 21

6:48 pm - 4:26 pm

HLN

IAD

19h 38m1 stop

5:26 pm - 6:11 pm

IAD

HLN

26h 45m2 stops

$423Alaska Airlines

Fri, Jan 23 - Wed, Jan 28

4:36 pm - 9:59 pm

HLN

DCA

27h 23m1 stop

5:06 pm - 3:59 pm

DCA

HLN

24h 53m2 stops

$433Alaska Airlines

Wed, Feb 18 - Sat, Feb 21

6:15 am - 4:35 pm

HLN

IAD

8h 20m1 stop

2:24 pm - 9:26 pm

IAD

HLN

9h 02m1 stop

$438United Airlines

Fri, Jan 23 - Wed, Jan 28

4:36 pm - 9:59 pm

HLN

DCA

27h 23m1 stop

5:06 pm - 3:59 pm

DCA

HLN

24h 53m2 stops

$463Alaska Airlines

Wed, Feb 18 - Sat, Feb 21

5:30 am - 6:51 pm

HLN

DCA

11h 21m2 stops

12:29 pm - 10:35 pm

DCA

HLN

12h 06m2 stops

$477Delta

Tue, Mar 31 - Tue, Apr 7

6:15 am - 4:46 pm

HLN

IAD

8h 31m1 stop

2:21 pm - 9:33 pm

IAD

HLN

9h 12m1 stop

$557United Airlines

Tue, Mar 31 - Tue, Apr 7

2:25 pm - 3:55 pm

HLN

DCA

23h 30m3 stops

4:11 pm - 9:16 pm

DCA

HLN

7h 05m1 stop

$582United Airlines

Wed, Feb 18 - Sat, Feb 21

United Airlines flights from Helena to District of Columbia

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

United Airlines

Jan 23

HLN6:15 amHelena

8h 20m

1 stop

IAD4:35 pmWashington, D.C. Dulles Intl

Jan 28

IAD2:24 pmWashington, D.C. Dulles Intl

9h 02m

1 stop

HLN9:26 pmHelena

$438

Find similar

United Airlines

Mar 31

HLN6:15 amHelena

8h 31m

1 stop

IAD4:46 pmWashington, D.C. Dulles Intl

Apr 7

IAD2:21 pmWashington, D.C. Dulles Intl

9h 12m

1 stop

HLN9:33 pmHelena

$557

Find similar

United Airlines

Feb 18

HLN2:25 pmHelena

23h 30m

3 stops

DCA3:55 pmWashington, D.C. Reagan-National

Feb 21

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

7h 05m

1 stop

HLN9:16 pmHelena

$582

Find similar

Alaska Airlines flights from Helena to District of Columbia

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

Alaska Airlines

Feb 18

HLN4:36 pmHelena

27h 23m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

Feb 21

DCA8:00 amWashington, D.C. Reagan-National

9h 59m

1 stop

HLN3:59 pmHelena

$349

Find similar

Alaska Airlines

Feb 18

HLN4:36 pmHelena

27h 23m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

Feb 21

DCA8:00 amWashington, D.C. Reagan-National

9h 59m

1 stop

HLN3:59 pmHelena

$369

Find similar

Alaska Airlines

Feb 18

HLN4:36 pmHelena

27h 23m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

Feb 21

DCA8:00 amWashington, D.C. Reagan-National

9h 59m

1 stop

HLN3:59 pmHelena

$409

Find similar

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

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 2/18

4:36 pm-9:59 pm

1 stop27h 23m

Washington, D.C. Reagan-National

Sat 2/21

8:00 am-3:59 pm

1 stop9h 59m

$349

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 2/18

4:36 pm-9:59 pm

1 stop27h 23m

Washington, D.C. Reagan-National

Sat 2/21

8:00 am-3:59 pm

1 stop9h 59m

$369

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 2/18

4:36 pm-9:59 pm

1 stop27h 23m

Washington, D.C. Reagan-National

Sat 2/21

8:00 am-3:59 pm

1 stop9h 59m

$409

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Fri 1/23

6:48 pm-4:26 pm

1 stop19h 38m

Washington, D.C. Dulles Intl

Wed 1/28

5:26 pm-6:11 pm

2 stops26h 45m

$423

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 2/18

4:36 pm-9:59 pm

1 stop27h 23m

Washington, D.C. Reagan-National

Sat 2/21

5:06 pm-3:59 pm

2 stops24h 53m

$433

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Fri 1/23

6:15 am-4:35 pm

1 stop8h 20m

Washington, D.C. Dulles Intl

Wed 1/28

2:24 pm-9:26 pm

1 stop9h 02m

$438

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 2/18

4:36 pm-9:59 pm

1 stop27h 23m

Washington, D.C. Reagan-National

Sat 2/21

5:06 pm-3:59 pm

2 stops24h 53m

$463

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Tue 3/31

5:30 am-6:51 pm

2 stops11h 21m

Washington, D.C. Reagan-National

Tue 4/7

12:29 pm-10:35 pm

2 stops12h 06m

$477

HelenaWashington, D.C.

HLN - IAD

HLNIAD

Helena

Tue 3/31

6:15 am-4:46 pm

1 stop8h 31m

Washington, D.C. Dulles Intl

Tue 4/7

2:21 pm-9:33 pm

1 stop9h 12m

$557

HelenaWashington, D.C.

HLN - DCA

HLNDCA

Helena

Wed 2/18

2:25 pm-3:55 pm

3 stops23h 30m

Washington, D.C. Reagan-National

Sat 2/21

4:11 pm-9:16 pm

1 stop7h 05m

$582

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 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

Prices

Airlines

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Tuesday when prices can be found for as low as $498. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Helena because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $825.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from Helena at noon is the least expensive time of day to depart. momondo users have found prices as low as $514 when looking at flights departing at noon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $689. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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	8h 20m
Direct flights	None

The fastest flight from Helena to District of Columbia takes 8h 20m

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

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 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.

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.