DCA - HLN

$402 Find Cheap Flights from Reagan Washington National Airport to Helena - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$409
Typical prices: $528-$781
United Airlines
Sun 1/21Fri 1/26
DCA - HLN • 1 stop
Cheapest one-way
$402
Typical prices: $304-$379
Alaska Airlines
Mon 12/17
DCA - HLN • 1 stop
Top layover airports
Cheapest • Avg $481 (round-trip)
Shortest trip • 8h 30m (one-way)
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Cheap Flights from Reagan-National to Helena (DCA-HLN)

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

Recent round-trip flight deals from Reagan-National to Helena

Thu, Jan 21 - Tue, Jan 26
United Airlines Logo
4:15 pm - 9:32 pmDCA  Washington, D.C. Reagan-National-HLN Helena
7h 17m1 stop Denver Intl
United Airlines Logo
6:15 am - 2:55 pmHLN  Helena-DCA Washington, D.C. Reagan-National
6h 40m1 stop Denver Intl
$409United Airlines
Wed, Apr 28 - Sat, May 1
Delta Logo
12:05 pm - 10:41 pmDCA  Washington, D.C. Reagan-National-HLN Helena
12h 36m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
7:00 am - 6:16 pmHLN  Helena-DCA Washington, D.C. Reagan-National
9h 16m2 stops Salt Lake City Minneapolis St Paul
$484Delta
Wed, Apr 28 - Sat, May 1
Delta Logo
12:05 pm - 10:41 pmDCA  Washington, D.C. Reagan-National-HLN Helena
12h 36m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
7:00 am - 4:17 pmHLN  Helena-DCA Washington, D.C. Reagan-National
7h 17m1 stop Salt Lake City
$509Delta
Thu, Jan 21 - Tue, Jan 26
Alaska Airlines Logo
10:59 am - 4:31 pmDCA  Washington, D.C. Reagan-National-HLN Helena
31h 32m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
5:08 pm - 4:03 pmHLN  Helena-DCA Washington, D.C. Reagan-National
20h 55m1 stop Seattle/Tacoma Intl
$541Alaska Airlines
Thu, Jan 21 - Tue, Jan 26
Delta Logo
10:14 am - 10:32 pmDCA  Washington, D.C. Reagan-National-HLN Helena
14h 18m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
7:10 am - 5:58 pmHLN  Helena-DCA Washington, D.C. Reagan-National
8h 48m2 stops Salt Lake City Cincinnati Cinci./N. Kentucky
$582Delta
Sun, Nov 22 - Thu, Nov 26
United Airlines Logo
4:09 pm - 9:31 pmDCA  Washington, D.C. Reagan-National-HLN Helena
7h 22m1 stop Denver Intl
United Airlines Logo
6:28 am - 2:58 pmHLN  Helena-DCA Washington, D.C. Reagan-National
6h 30m1 stop Denver Intl
$601United Airlines
Sat, Feb 27 - Mon, Mar 8
Alaska Airlines Logo
8:00 am - 3:37 pmDCA  Washington, D.C. Reagan-National-HLN Helena
9h 37m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:17 pm - 4:00 pmHLN  Helena-DCA Washington, D.C. Reagan-National
21h 43m1 stop Seattle/Tacoma Intl
$606Alaska Airlines
Sat, Dec 5 - Wed, Dec 9
Alaska Airlines Logo
8:00 am - 4:12 pmDCA  Washington, D.C. Reagan-National-HLN Helena
10h 12m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 9:59 pmHLN  Helena-DCA Washington, D.C. Reagan-National
27h 10m1 stop Seattle/Tacoma Intl
$641Alaska Airlines
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
4:13 pm - 9:26 pmDCA  Washington, D.C. Reagan-National-HLN Helena
7h 13m1 stop Denver Intl
United Airlines Logo
2:35 pm - 12:49 pmHLN  Helena-DCA Washington, D.C. Reagan-National
20h 14m2 stops Denver Intl Newark
$687United Airlines
Sat, Dec 5 - Wed, Dec 9
Alaska Airlines Logo
8:00 am - 4:12 pmDCA  Washington, D.C. Reagan-National-HLN Helena
10h 12m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 9:59 pmHLN  Helena-DCA Washington, D.C. Reagan-National
27h 10m1 stop Seattle/Tacoma Intl
$701Alaska Airlines
Booking Insights

Price, demand and travel trends for Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Helena?

Round-trip flights from Washington, D.C. Reagan-National Airport to Helena typically range from $528 to $781. The lowest price found in the past 5 days was $409, on United Airlines.

Key details for Washington, D.C. Reagan-National Airport to Helena flights

Cheapest flight

$402
One-way flight from Washington, D.C. Reagan-National Airport to Helena

When to book flights from Reagan-National to Helena

Are your dates flexible? Find out the best times to travel from Reagan-National 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. Reagan-National Airport 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. Reagan-National Airport to Helena?

    Two cabin classes are available on flights from Washington, D.C. Reagan-National Airport to Helena:

    • Economy Class
    • First Class

  • How long is a flight from Washington, D.C. Reagan-National Airport to Helena?

    There are currently no nonstop flights available from Washington, D.C. Reagan-National Airport to Helena. Flights with 1 layover take between 7h 53m and 8h 30m in total, depending on the connection.

  • Do I need a passport to fly from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Helena looking right now?

    One-way fares from Washington, D.C. Reagan-National Airport to Helena are currently higher than usual. Average one-way flight prices are about $501, which is 32% above 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 averaging $84 for economy cars. Top options include:

    • Budget
    • Hertz
    • Enterprise Rent-A-Car
    • Avis
    • National

  • Which airports can I use when flying from Washington, D.C. Reagan-National Airport to Helena?

    Flights from Washington, D.C. Reagan-National Airport to Helena usually depart from Washington, D.C. Reagan-National (DCA) and arrive at Helena (HLN).

  • Which airports do connecting flights from Washington, D.C. Reagan-National Airport to Helena pass through?

    Connecting flights from Washington, D.C. Reagan-National Airport to Helena most commonly pass through:

    • Denver Intl (DEN) - 80% of one-stop connections
    • Salt Lake City (SLC) - 20% of one-stop connections

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

    Yes. Flexible dates can save you up to 21% on flights from Washington, D.C. Reagan-National Airport to Helena. Tuesday is the cheapest departure day at $617 round-trip on average, while Saturday is the most expensive at $781, a difference of $164.

    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. Reagan-National Airport to Helena?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 7h 53m, compared with 8h 30m via Denver Intl (DEN).

  • What is the time difference between Washington, D.C. Reagan-National Airport and Helena?

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

Your guide to booking Washington, D.C. Reagan-National Airport to Helena flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Reagan-National to Helena

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