What airlines fly to Washington, D.C.?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Washington, D.C. from Helena according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 4 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Helena Airport to Washington, D.C.?

Prices for flights from Helena Airport to Washington, D.C. refresh daily.

How many operators does momondo search for flights from Helena Airport to Washington, D.C.?

The number of operators available for flights from Helena Airport to Washington, D.C. is 2 as of March 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helena Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$325 Discover Cheap Flights from Helena to Washington, D.C. in 2025

Q: What is the typical price of a round-trip flight between Helena and Washington, D.C.?

Prices are currently low for flights on this route. Typical prices usually range from $505 to $725. The lowest price recently found on this route was $352.

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Find the cheapest flights from Helena to Washington, D.C.

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One-way

Last minute

Cheap round-trip flights

These are some of the best round-trip flight deals from Helena to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.

1:15 pm - 12:36 amHLN-BWI

9h 21m2 stops

7:05 am - 12:38 pmBWI-HLN

7h 33m1 stop

$352Delta

Find Deal

Tue, Apr 8 - Tue, Apr 15

1:15 pm - 12:36 amHLN-BWI

9h 21m2 stops

6:00 am - 12:38 pmBWI-HLN

8h 38m2 stops

$357Delta

Find Deal

Tue, Apr 8 - Tue, Apr 15

1:15 pm - 11:50 pmHLN-IAD

8h 35m1 stop

7:35 am - 12:38 pmIAD-HLN

7h 03m1 stop

$395Delta

Find Deal

Tue, Apr 8 - Tue, Apr 15

6:45 am - 3:05 pmHLN-BWI

6h 20m1 stop

8:28 am - 1:30 pmBWI-HLN

7h 02m1 stop

$437United Airlines

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Tue, Apr 8 - Tue, Apr 15

4:19 pm - 9:59 pmHLN-DCA

27h 40m1 stop

8:00 am - 3:39 pmDCA-HLN

9h 39m1 stop

$464Alaska Airlines

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Tue, Apr 8 - Tue, Apr 15

2:12 pm - 3:01 pmHLN-DCA

22h 49m1 stop

4:15 pm - 9:25 pmDCA-HLN

7h 10m1 stop

$520United Airlines

Find Deal

Tue, Apr 8 - Tue, Apr 15

2:25 pm - 11:23 pmHLN-IAD

6h 58m1 stop

10:10 pm - 1:30 pmIAD-HLN

17h 20m2 stops

$551United Airlines

Find Deal

Fri, Mar 28 - Mon, Mar 31

4:11 pm - 11:59 pmHLN-IAD

29h 48m1 stop

6:30 am - 3:31 pmIAD-HLN

11h 01m1 stop

$560Alaska Airlines

Find Deal

Sun, May 18 - Sun, May 25

4:11 pm - 5:55 amHLN-IAD

11h 44m2 stops

5:14 pm - 3:31 pmIAD-HLN

24h 17m2 stops

$575Alaska Airlines

Find Deal

Sat, May 17 - Sat, May 24

6:30 am - 5:00 amHLN-BWI

20h 30m1 stop

6:45 am - 1:40 pmBWI-HLN

8h 55m2 stops

$707United Airlines

Find Deal

Wed, Mar 19 - Sun, Mar 23

Delta flights from Helena to Washington, D.C.

Our best Delta deals on Helena to Washington, D.C. flight tickets

Delta

Apr 8

HLN1:15 pmHelena

9h 21m

2 stops

BWI12:36 amBaltimore/Washington

Apr 15

BWI7:05 amBaltimore/Washington

7h 33m

1 stop

HLN12:38 pmHelena

$352

Find similar

Delta

Apr 8

HLN1:15 pmHelena

9h 21m

2 stops

BWI12:36 amBaltimore/Washington

Apr 15

BWI6:00 amBaltimore/Washington

8h 38m

2 stops

HLN12:38 pmHelena

$357

Find similar

Delta

Apr 8

HLN1:15 pmHelena

8h 35m

1 stop

IAD11:50 pmWashington, D.C. Dulles Intl

Apr 15

IAD7:35 amWashington, D.C. Dulles Intl

7h 03m

1 stop

HLN12:38 pmHelena

$395

Find similar

Alaska Airlines flights from Helena to Washington, D.C.

Our best Alaska Airlines deals on Helena to Washington, D.C. flight tickets

Alaska Airlines

Apr 8

HLN4:19 pmHelena

27h 40m

1 stop

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

Apr 15

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

9h 39m

1 stop

HLN3:39 pmHelena

$464

Find similar

Alaska Airlines

May 18

HLN4:11 pmHelena

29h 48m

1 stop

IAD11:59 pmWashington, D.C. Dulles Intl

May 25

IAD6:30 amWashington, D.C. Dulles Intl

11h 01m

1 stop

HLN3:31 pmHelena

$560

Find similar

Alaska Airlines

May 17

HLN4:11 pmHelena

11h 44m

2 stops

IAD5:55 amWashington, D.C. Dulles Intl

May 24

IAD5:14 pmWashington, D.C. Dulles Intl

24h 17m

2 stops

HLN3:31 pmHelena

$575

Find similar

How to get the cheapest flight ticket from Helena to Washington, D.C.

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 typical price of a round-trip flight between Helena and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of July is, on average, the cheapest month to fly to Washington, D.C. from Helena, with most prices found around $488. If you’re not able to fly to Washington, D.C. in July, then May is your next best option. Flight prices from Helena to Washington, D.C. during May average around $498.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Helena is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $498. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Helena to Washington, D.C. for around $825.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At noon is the cheapest time of day to fly from Helena to Washington, D.C. when you can find flight prices for as low as $514. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $689. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Helena to Washington, D.C.

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

Estimated round-trip price

Cheap Helena to Washington, D.C. (HLN to WAS) flight deals and tips

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

Best Price Found	$352
Fastest flight time	6h 20m
Direct flights	None
Airports in Washington, D.C.	3 airports

The best flight deal from Helena to Washington, D.C. found on momondo in the last 72 hours is $352

The fastest flight from Helena to Washington, D.C. takes 6h 20m

There are no direct flights from Helena to Washington, D.C.. Popular non-direct routes for this connection are Helena Airport - Baltimore/Washington Airport, Helena Airport - Washington, D.C. Reagan-National Airport and Helena Airport - Washington, D.C. Dulles Intl Airport.

There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

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How far is Helena to Washington, D.C. by plane?
There are 1835.3 mi between Helena and Washington, D.C.. In terms of flight time, this usually takes a little over 6h 20m.
When did momondo last update prices for flights from Helena Airport to Washington, D.C.?
Prices for flights from Helena Airport to Washington, D.C. refresh daily.
How many operators does momondo search for flights from Helena Airport to Washington, D.C.?
The number of operators available for flights from Helena Airport to Washington, D.C. is 2 as of March 2025.
How old do you have to be to fly from Helena Airport to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helena Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Helena to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Helena to Washington, D.C. is United Airlines (56% of total bookings). The next most popular airline is Delta (44%).

Best airlines flying from Helena to Washington, D.C.

Compare and see reviews for airlines that fly from Helena to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $344	Free Cancellation	Rating 7.4 8,660 reviews		Search United Airlines flights
Delta	PriceFrom $468	Free Cancellation	Rating 8.0 8,045 reviews		Search Delta flights

Alexandria

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Laurel

National Harbor

Silver Spring

Woodbridge

Tysons

Fredericksburg

Manassas

Waldorf

Gaithersburg

Linthicum Heights

Glen Burnie

Rockville

Fairfax

Towson

Reston

Hanover

Hyattsville

Why use momondo?

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

Finding the right flight to Washington, D.C. from Helena is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Helena to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. 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 Washington, D.C.?

momondo helps you find the best flight between Helena and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Helena to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.