WAS - HLN

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

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$359
Typical prices: $502-$716
United Airlines
Thu 10/11Wed 10/17
IAD - HLN • 1 stop
Cheapest one-way
$190
Typical prices: $306-$485
United Airlines
Fri 9/21
DCA - HLN • 1 stop
Top routes
IAD - HLN
Cheapest
DCA - HLN
Most popular
Insights
Insights
When to travel
February
Cheapest • 28% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Chicago O'Hare Intl (ORD)
Cheapest • Avg $388 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 37m (one-way)
Insights
Insights
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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.

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

Wed, Oct 21 - Tue, Oct 27
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$359Delta
Tue, Oct 20 - Wed, Oct 28
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$359Delta
Wed, Oct 21 - Fri, Oct 30
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$359Delta
Wed, Oct 21 - Wed, Oct 28
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$359Delta
Thu, Oct 22 - Tue, Oct 27
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$359Delta
Mon, Oct 19 - Tue, Oct 27
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$359Delta
Tue, Oct 20 - Tue, Oct 27
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$359Delta
Wed, Sep 16 - Wed, Sep 30
Delta Logo
7:00 am - 12:17 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 17m1 stop Salt Lake City
Delta Logo
12:57 pm - 11:43 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 46m1 stop Salt Lake City
$359Delta
Sat, Jan 30 - Wed, Feb 3
United Airlines Logo
4:10 pm - 8:59 pmBWI  Baltimore/Washington-HLN Helena
6h 49m1 stop Denver Intl
United Airlines Logo
7:00 am - 3:06 pmHLN  Helena-BWI Baltimore/Washington
6h 06m1 stop Denver Intl
$459United Airlines
Wed, Nov 25 - Sat, Dec 5
United Airlines Logo
4:19 pm - 9:31 pmBWI  Baltimore/Washington-HLN Helena
7h 12m1 stop Denver Intl
United Airlines Logo
7:00 am - 3:06 pmHLN  Helena-BWI Baltimore/Washington
6h 06m1 stop Denver Intl
$459United 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.

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 United Airlines.

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.

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

Low season

April

Cheapest flight

$190
Best time to beat the crowds but there is an average 43% increase in price.
Flight from Washington, D.C. Reagan-National 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

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

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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?

    Only Economy Class is available on flights from Washington, D.C. to Helena.

  • 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) - 69% of one-stop connections
    • Salt Lake City (SLC) - 24% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 4% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 2% 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 6h 33m 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 $213, which is 41% 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 Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 6h 33m, compared with 7h 37m via Denver Intl (DEN) and 7h 48m via Salt Lake City (SLC).

  • 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.

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

Get tips on when to book, when to fly and what to know before your trip.
  • 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.
    - Americas Best Value Inn & Suites Helena
    - Baymont by Wyndham Helena
    - Days Inn by Wyndham Helena

Everything you need to know for your flight from Washington, D.C. to Helena

Information on your arrival and departure airports

Helena (HLN)