WAS - HLN

$225 Find Cheap Flights from Washington, D.C. to Helena - Compare and Save

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Everything you should know

Cheapest round-trip
$399
Typical prices: $481-$781
Delta
Mon 2/26Wed 2/28
BWI - HLN • 1 stop
Cheapest one-way
$225
Typical prices: $329-$519
Delta
Sun 12/16
BWI - HLN • 1 stop
Top routes
IAD - HLN
Cheapest • 12% average savings
DCA - HLN
Most popular
Insights
Insights
When to travel
February
Cheapest • 30% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $516 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 51m (one-way)
Insights
Insights
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Cheap Flights from Washington, D.C. to Helena (WAS-HLN)

 

Cheap flights from Washington, D.C. to Helena with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Fri, Feb 26 - Sun, Feb 28
Delta Logo
7:10 am - 12:24 pmBWI  Baltimore/Washington-HLN Helena
7h 14m1 stop Salt Lake City
Delta Logo
12:50 pm - 11:40 pmHLN  Helena-BWI Baltimore/Washington
8h 50m1 stop Salt Lake City
$399Delta
Wed, Dec 9 - Sun, Dec 13
Delta Logo
7:00 am - 12:30 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 30m1 stop Salt Lake City
Delta Logo
1:10 pm - 11:47 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 37m1 stop Salt Lake City
$429Delta
Sat, Feb 13 - Sat, Feb 20
United Airlines Logo
4:08 pm - 8:59 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
6h 51m1 stop Denver Intl
United Airlines Logo
2:30 pm - 11:13 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
6h 43m1 stop Denver Intl
$433United Airlines
Wed, Dec 9 - Sun, Dec 13
Delta Logo
7:00 am - 12:30 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 30m1 stop Salt Lake City
Delta Logo
1:10 pm - 12:41 amHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 31m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$434Delta
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
6:10 am - 1:40 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
9h 30m1 stop Denver Intl
United Airlines Logo
2:23 pm - 11:13 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
6h 50m1 stop Denver Intl
$459United Airlines
Thu, Oct 29 - Mon, Nov 2
Delta Logo
6:05 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 23m2 stops Detroit Metropolitan Wayne County Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$464Delta
Mon, Nov 23 - Mon, Nov 30
Delta Logo
7:00 am - 12:27 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 27m1 stop Salt Lake City
Delta Logo
1:07 pm - 11:21 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 14m2 stops Salt Lake City Minneapolis St Paul
$474Delta
Sat, Feb 13 - Sat, Feb 20
Delta Logo
7:10 am - 12:24 pmBWI  Baltimore/Washington-HLN Helena
7h 14m1 stop Salt Lake City
Delta Logo
12:50 pm - 11:40 pmHLN  Helena-BWI Baltimore/Washington
8h 50m1 stop Salt Lake City
$479Delta
Sun, Nov 1 - Thu, Nov 5
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
$497Delta
Sun, Nov 1 - Thu, Nov 5
Delta Logo
6:05 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 23m2 stops Detroit Metropolitan Wayne County Salt Lake City
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$502Delta

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 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 typically range from $481 to $781. The lowest price found in the past 5 days was $399, on Delta.

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

Washington, D.C. Dulles Intl Airport (IAD) to Helena (HLN) is the cheapest Washington, D.C. to Helena route, averaging $613 round-trip. Other Washington, D.C. to Helena routes average $781, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Helena?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Washington, D.C. to Helena. It’s 30% cheaper than the average day, while Friday is the most expensive, with prices 424% higher.

Find deals

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

Low season

April

Cheapest flight

$225
Beat the crowds with an average 91% drop in travelers.
The most popular month to fly with an average 27% increase in travelers.
One-way flight from Baltimore 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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

  • 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 51m and 11h 59m 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 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 $481 to $781, with an average of $625 over the past 12 months. Anything below $481 counts as a good deal.

  • 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 $293, which is 23% below the typical average for this route.

  • 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

  • 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).

  • 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) - 77% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 11% of one-stop connections
    • Salt Lake City (SLC) - 11% of one-stop connections

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

    Yes. Flexible dates can save you up to 87% on flights from Washington, D.C. to Helena. Wednesday is the cheapest departure day at $439 round-trip on average, while Friday is the most expensive at $3,280, a difference of $2,841.

    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 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 51m, compared with 7h 54m via Salt Lake City (SLC) and 11h 59m 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.

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 are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $439, about $2,841 less than Friday fares (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 $440 less than the most expensive month, which is April (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.

    • Baymont by Wyndham Helena
    • La Quinta Inn & Suites by Wyndham Helena
    • Home2 Suites By Hilton Helena

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

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

Car rentals in Helena
Hotels in Helena
Vacations in Helena