Which airports can I use when flying from Washington, D.C. to Helena?

Flights from Washington, D.C. to Helena may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Helena (HLN).

What cabin classes can I book on flights from Washington, D.C. to Helena?

Two cabin classes are available on flights from Washington, D.C. to Helena: • Economy Class • First Class

Which airports do connecting flights from Washington, D.C. to Helena pass through?

One-stop flights from Washington, D.C. to Helena most commonly connect through: • Denver Intl (DEN) - 85% of one-stop connections • Salt Lake City (SLC) - 10% of one-stop connections • Seattle/Tacoma Intl (SEA) - 5% of one-stop connections Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Can I save money by using flexible dates for flights from Washington, D.C. to Helena?

Yes. Being flexible with your travel dates can save you up to 88% on the Washington, D.C. to Helena route. Thursday is the cheapest departure day at $414 round-trip on average, while Friday is the most expensive at $3,280, a difference of $2,866. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Washington, D.C. to Helena?

There are currently no nonstop flights available from Washington, D.C. to Helena. Flights with 1 layover take between 7h 38m and 14h 14m in total, depending on the connection.

Do I need a passport to fly from Washington, D.C. to Helena?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

How are flight prices from Washington, D.C. to Helena looking right now?

One-way fares from Washington, D.C. to Helena are currently lower than usual. Average one-way flight prices are about $211, which is 42% below the typical average for this route.

How much time can I save by choosing a different layover airport from Washington, D.C. to Helena?

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 38m, compared with 7h 52m via Salt Lake City (SLC) and 14h 14m via Seattle/Tacoma Intl (SEA).

What is the time difference between Washington, D.C. and Helena?

Helena is 2 hours behind Washington, D.C. (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Helena Airport (HLN)?

Helena Airport (HLN) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include: · Budget · Enterprise Rent-A-Car · Hertz · Avis · National

How much should I expect to pay for a Washington, D.C. to Helena flight?

Round-trip flights from Washington, D.C. to Helena range from $502 to $716, with an average of $613 over the past 12 months. Anything below $502 counts as a good deal.

What is the cheapest airline to fly from Washington, D.C. to Helena?

Delta ($359) and United Airlines ($459) are the cheapest airlines to fly round-trip from Washington, D.C. to Helena according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from Washington, D.C. to Helena?

Denver Intl (DEN) is the most popular layover for the Washington, D.C. to Helena route. 85% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN.

What is the cheapest layover airport when flying from Washington, D.C. to Helena?

Flights via Seattle/Tacoma Intl (SEA) offer the most affordable fares, with an average round-trip price of $606. Based on KAYAK data over the past 3 months.

When flying from Washington, D.C. to Helena which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Washington, D.C. to Helena layovers at 274 minutes over the past 3 months.

$190 CHEAP FLIGHTS from Washington, D.C. to Helena (WAS - HLN)

Save 21% or more on flights. Compare deals from all over the web.

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Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$359

Typical prices: $502-$716

Delta

Tue 10/16Sun 10/21

IAD - HLN • 1 stop

Cheapest one-way

$190

Typical prices: $306-$485

United Airlines

Mon 11/26

IAD - HLN • 1 stop

Top routes

IAD - HLN

Cheapest

DCA - HLN

Most popular

Insights

When to travel

February

Cheapest • 28% price drop

June

Most popular

Good to know

Top layover airports

Seattle/Tacoma Intl (SEA)

Cheapest • Avg $606 (round-trip)

Denver Intl (DEN)

Shortest trip • 7h 38m (one-way)

Insights

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Helena!

Flight Deals

Cheap Flights from Washington, D.C. to Helena (WAS-HLN)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Washington, D.C. to Helena

Sat, Sep 26 - Wed, Sep 30

7:00 am - 12:17 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 17m1 stop Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$359Delta

Fri, Oct 16 - Wed, Oct 21

7:00 am - 12:28 pmBWI Baltimore/Washington-HLN Helena

7h 28m1 stop Salt Lake City

1:08 pm - 12:51 amHLN Helena-BWI Baltimore/Washington

9h 43m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$364Delta

Sat, Sep 26 - Fri, Oct 2

7:00 am - 12:17 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 17m1 stop Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$369Delta

Wed, Feb 10 - Tue, Feb 16

7:15 am - 12:24 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 09m1 stop Salt Lake City

12:50 pm - 11:46 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 56m1 stop Salt Lake City

$394Delta

Sat, Sep 26 - Wed, Sep 30

12:18 pm - 10:29 pmIAD Washington, D.C. Dulles Intl-HLN Helena

12h 11m2 stops Detroit Metropolitan Wayne County Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$399Delta

Sat, Sep 26 - Fri, Oct 2

12:18 pm - 10:29 pmIAD Washington, D.C. Dulles Intl-HLN Helena

12h 11m2 stops Detroit Metropolitan Wayne County Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$409Delta

Sat, Jan 30 - Wed, Feb 3

5:30 pm - 4:23 pmIAD Washington, D.C. Dulles Intl-HLN Helena

24h 53m1 stop Seattle/Tacoma Intl

5:00 pm - 4:27 pmHLN Helena-IAD Washington, D.C. Dulles Intl

21h 27m1 stop Seattle/Tacoma Intl

$448Alaska Airlines

Sat, Sep 19 - Wed, Sep 23

7:00 am - 4:41 pmIAD Washington, D.C. Dulles Intl-HLN Helena

11h 41m1 stop Seattle/Tacoma Intl

5:18 pm - 5:40 amHLN Helena-IAD Washington, D.C. Dulles Intl

10h 22m1 stop Seattle/Tacoma Intl

$449Alaska Airlines

Sat, Jan 30 - Wed, Feb 3

2:25 pm - 8:59 pmIAD Washington, D.C. Dulles Intl-HLN Helena

8h 34m1 stop Denver Intl

2:30 pm - 11:13 pmHLN Helena-IAD Washington, D.C. Dulles Intl

6h 43m1 stop Denver Intl

$459United Airlines

Sat, Jan 30 - Wed, Feb 3

4:10 pm - 8:59 pmBWI Baltimore/Washington-HLN Helena

6h 49m1 stop Denver Intl

7:00 am - 3:06 pmHLN Helena-BWI Baltimore/Washington

6h 06m1 stop Denver Intl

$459United Airlines

Recent last minute flight deals from Washington, D.C. to Helena

Wed, Sep 9 - Wed, Sep 23

7:00 am - 4:41 pmIAD Washington, D.C. Dulles Intl-HLN Helena

11h 41m1 stop Seattle/Tacoma Intl

5:18 pm - 5:40 amHLN Helena-IAD Washington, D.C. Dulles Intl

10h 22m1 stop Seattle/Tacoma Intl

$509Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

7:50 am - 4:41 pmBWI Baltimore/Washington-HLN Helena

10h 51m1 stop Seattle/Tacoma Intl

5:18 pm - 6:30 amHLN Helena-BWI Baltimore/Washington

11h 12m1 stop Seattle/Tacoma Intl

$564Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

3:40 pm - 10:24 pmIAD Washington, D.C. Dulles Intl-HLN Helena

8h 44m2 stops Minneapolis St Paul Salt Lake City

12:57 pm - 11:43 pmHLN Helena-IAD Washington, D.C. Dulles Intl

8h 46m1 stop Salt Lake City

$606Delta

Wed, Sep 9 - Wed, Sep 23

7:50 am - 4:41 pmBWI Baltimore/Washington-HLN Helena

10h 51m1 stop Seattle/Tacoma Intl

5:18 pm - 6:30 amHLN Helena-BWI Baltimore/Washington

11h 12m1 stop Seattle/Tacoma Intl

$623Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

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

13h 14m2 stops New York John F Kennedy Intl Salt Lake City

7:15 am - 6:47 pmHLN Helena-DCA Washington, D.C. Reagan-National

9h 32m2 stops Salt Lake City Cincinnati Cinci./N. Kentucky

$640Delta

Wed, Sep 9 - Wed, Sep 23

7:15 pm - 4:41 pmBWI Baltimore/Washington-HLN Helena

23h 26m1 stop Seattle/Tacoma Intl

5:18 pm - 6:30 amHLN Helena-BWI Baltimore/Washington

11h 12m1 stop Seattle/Tacoma Intl

$657Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

7:50 am - 4:41 pmBWI Baltimore/Washington-HLN Helena

10h 51m1 stop Seattle/Tacoma Intl

5:18 pm - 6:30 amHLN Helena-BWI Baltimore/Washington

11h 12m1 stop Seattle/Tacoma Intl

$697Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

8:00 am - 4:41 pmDCA Washington, D.C. Reagan-National-HLN Helena

10h 41m1 stop Seattle/Tacoma Intl

5:18 pm - 9:00 pmHLN Helena-DCA Washington, D.C. Reagan-National

25h 42m2 stops Seattle/Tacoma Intl San Diego

$716Alaska Airlines

Wed, Sep 9 - Wed, Sep 23

2:43 pm - 9:30 pmIAD Washington, D.C. Dulles Intl-HLN Helena

8h 47m1 stop Denver Intl

6:15 am - 5:25 amHLN Helena-IAD Washington, D.C. Dulles Intl

21h 10m1 stop Denver Intl

$753United Airlines

Wed, Sep 9 - Wed, Sep 23

4:15 pm - 9:30 pmIAD Washington, D.C. Dulles Intl-HLN Helena

7h 15m1 stop Denver Intl

6:15 am - 9:23 pmHLN Helena-IAD Washington, D.C. Dulles Intl

13h 08m2 stops Denver Intl Cleveland Hopkins Intl

$771United Airlines

Booking Insights

Price, demand and travel trends for Washington, D.C. to Helena flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Washington, D.C. to Helena with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Washington, D.C. to Helena?

Round-trip flights from Washington, D.C. to Helena start at $359. Prices are below average for this route right now, with typical round-trip fares ranging from $502 to $716. The lowest price found in the past 5 days was $359 on Delta.

What is the cheapest Washington, D.C. to Helena flight route?

There's little price difference between Washington, D.C. to Helena routes. They average around $615 round-trip, based on KAYAK data over the past 12 months.

Find deals

Low season	April
High season	June
Cheapest flight	$190

Best time to beat the crowds but there is an average 43% increase in price.

Flight from Washington, D.C. Dulles Intl Airport to Helena

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

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Washington, D.C. to Helena?
Flights from Washington, D.C. to Helena may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Helena (HLN).
What cabin classes can I book on flights from Washington, D.C. to Helena?
Two cabin classes are available on flights from Washington, D.C. to Helena:

• Economy Class
• First Class
Which airports do connecting flights from Washington, D.C. to Helena pass through?
One-stop flights from Washington, D.C. to Helena most commonly connect through:

• Denver Intl (DEN) - 85% of one-stop connections
• Salt Lake City (SLC) - 10% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 5% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.
Can I save money by using flexible dates for flights from Washington, D.C. to Helena?
Yes. Being flexible with your travel dates can save you up to 88% on the Washington, D.C. to Helena route. Thursday is the cheapest departure day at $414 round-trip on average, while Friday is the most expensive at $3,280, a difference of $2,866. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How long is a flight from Washington, D.C. to Helena?
There are currently no nonstop flights available from Washington, D.C. to Helena. Flights with 1 layover take between 7h 38m and 14h 14m in total, depending on the connection.
Do I need a passport to fly from Washington, D.C. to Helena?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
How are flight prices from Washington, D.C. to Helena looking right now?
One-way fares from Washington, D.C. to Helena are currently lower than usual. Average one-way flight prices are about $211, which is 42% below the typical average for this route.
How much time can I save by choosing a different layover airport from Washington, D.C. to Helena?
Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 38m, compared with 7h 52m via Salt Lake City (SLC) and 14h 14m via Seattle/Tacoma Intl (SEA).
What is the time difference between Washington, D.C. and Helena?
Helena is 2 hours behind Washington, D.C. (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Helena Airport (HLN)?
Helena Airport (HLN) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include:
· Budget
· Enterprise Rent-A-Car
· Hertz
· Avis
· National
How much should I expect to pay for a Washington, D.C. to Helena flight?
Round-trip flights from Washington, D.C. to Helena range from $502 to $716, with an average of $613 over the past 12 months. Anything below $502 counts as a good deal.

If your dates can be flexible, aim for a Thursday departure instead of Friday. On this route, Thursday flights average $414 - about $2,866 less than Friday (87% savings) based on the last 12 months.
If you can choose when to travel, plan your Washington, D.C. to Helena trip for February. Fares historically average $439 round-trip in that month - typically $657 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Helena Airport.
- Days Inn by Wyndham Helena
- Americas Best Value Inn & Suites Helena
- Baymont by Wyndham Helena

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WAS - HLN

$190 Find Cheap Flights from Washington, D.C. to Helena - Compare and Save

Everything you should know

Cheap Flights from Washington, D.C. to Helena (WAS-HLN)

Recent round-trip flight deals from Washington, D.C. to Helena

Recent one-way flight deals from Washington, D.C. to Helena

Recent last minute flight deals from Washington, D.C. to Helena

Price, demand and travel trends for Washington, D.C. to Helena flights

How much is a round-trip flight from Washington, D.C. to Helena?

What is the cheapest Washington, D.C. to Helena flight route?

What is the cheapest airline to fly from Washington, D.C. to Helena?

What is the most popular layover airport when flying from Washington, D.C. to Helena?

What is the cheapest layover airport when flying from Washington, D.C. to Helena?

When flying from Washington, D.C. to Helena which airport offers the shortest layover?

Key details for Washington, D.C. to Helena flights

Low season

High season

Cheapest flight

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

Your Washington, D.C. to Helena flight questions, answered

Your guide to booking Washington, D.C. to Helena flights

More options for your flight from Washington, D.C. to Helena

Complete your trip to Helena with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Washington, D.C. to Helena

Find direct flights to and from Washington, D.C. and Helena

Flights from domestic origins to Helena

Flights to other popular destinations

Find deals for your return flight