WAS - HLN
$208 Find Cheap Flights from Washington, D.C. to Helena - Compare and Save
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Helena departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Everything you should know
Cheapest round-trip
$379
Typical prices: $502-$716
United Airlines
Tue 11/6Thu 11/8
BWI - HLN • 1 stop
Cheapest one-way
$208
Typical prices: $306-$485
United Airlines
Tue 10/30
DCA - HLN • 1 stop
Flight Deals
Cheap Flights from Washington, D.C. to Helena (WAS-HLN)
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Helena that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Recent round-trip flight deals from Washington, D.C. to Helena
Fri, Nov 6 - Fri, Nov 13
4:10 pm - 9:31 pmIAD Washington, D.C. Dulles Intl-HLN Helena
7h 21m1 stop Denver Intl
6:28 am - 5:55 pmHLN Helena-IAD Washington, D.C. Dulles Intl
9h 27m1 stop Denver Intl
$379United Airlines
Fri, Nov 6 - Sun, Nov 8
4:19 pm - 9:31 pmBWI Baltimore/Washington-HLN Helena
7h 12m1 stop Denver Intl
2:23 pm - 11:08 pmHLN Helena-BWI Baltimore/Washington
6h 45m1 stop Denver Intl
$379United Airlines
Tue, Oct 20 - Tue, Oct 27
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
1:08 pm - 11:35 pmHLN Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$379Delta
Fri, Nov 6 - Sun, Nov 8
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
1:08 pm - 11:35 pmHLN Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$379Delta
Thu, Nov 5 - Fri, Nov 13
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
1:07 pm - 11:47 pmHLN Helena-IAD Washington, D.C. Dulles Intl
8h 40m1 stop Salt Lake City
$379Delta
Sat, Nov 7 - Fri, Nov 13
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
1:07 pm - 11:47 pmHLN Helena-IAD Washington, D.C. Dulles Intl
8h 40m1 stop Salt Lake City
$379Delta
Thu, Dec 17 - Mon, Jan 4
7:15 am - 12:30 pmBWI Baltimore/Washington-HLN Helena
7h 15m1 stop Salt Lake City
12:50 pm - 11:40 pmHLN Helena-BWI Baltimore/Washington
8h 50m1 stop Salt Lake City
$379Delta
Wed, Oct 21 - Wed, Oct 28
10:14 am - 10:24 pmIAD Washington, D.C. Dulles Intl-HLN Helena
14h 10m2 stops Atlanta Hartsfield-Jackson Salt Lake City
1:08 pm - 11:35 pmHLN Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
$384Delta
Tue, Oct 20 - Tue, Oct 27
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
7:15 am - 8:14 pmHLN Helena-IAD Washington, D.C. Dulles Intl
10h 59m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$384Delta
Sat, Nov 7 - Sat, Nov 14
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
1:07 pm - 12:41 amHLN Helena-IAD Washington, D.C. Dulles Intl
9h 34m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$384Delta
Recent one-way flight deals from Washington, D.C. to Helena
Fri, Oct 30
4:09 pm - 9:31 pmDCA Washington, D.C. Reagan-National-HLN Helena
7h 22m1 stop Denver Intl
$208United Airlines
Fri, Oct 30
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
$208Delta
Sat, Oct 31
6:13 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
$208Delta
Fri, Oct 30
6:10 am - 12:28 pmDCA Washington, D.C. Reagan-National-HLN Helena
8h 18m2 stops Detroit Metropolitan Wayne County Salt Lake City
$213Delta
Fri, Oct 30
6:05 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 23m2 stops Detroit Metropolitan Wayne County Salt Lake City
$213Delta
Sat, Oct 31
6:05 am - 12:28 pmIAD Washington, D.C. Dulles Intl-HLN Helena
8h 23m2 stops Detroit Metropolitan Wayne County Salt Lake City
$213Delta
Fri, Nov 6
4:19 pm - 9:31 pmBWI Baltimore/Washington-HLN Helena
7h 12m1 stop Denver Intl
$215United Airlines
Thu, Dec 17
7:15 am - 12:30 pmBWI Baltimore/Washington-HLN Helena
7h 15m1 stop Salt Lake City
$215Delta
Wed, Dec 16
7:15 am - 12:30 pmBWI Baltimore/Washington-HLN Helena
7h 15m1 stop Salt Lake City
$215Delta
Sat, Oct 31
8:00 am - 4:44 pmDCA Washington, D.C. Reagan-National-HLN Helena
10h 44m1 stop Seattle/Tacoma Intl
$225Alaska 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 with more confidence.
Prices
Airlines
Layovers
How much is a round-trip flight from Washington, D.C. to Helena?
This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Helena departing in november.
Round-trip flights from Washington, D.C. to Helena typically range from $502 to $716. The lowest price found in the past 5 days was $379, on United Airlines.
What’s the most popular layover airport when flying from Washington, D.C. to Helena?
KAYAK data for 1-stop round-trips over the past 3 months. Only counts itineraries with the same layover on both legs.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.
Key details for Washington, D.C. to Helena flights
Low season | April |
|---|---|
High season | June |
Cheapest flight | $208 |
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.
Your Washington, D.C. to Helena flight questions, answered
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Your guide to booking Washington, D.C. to Helena flights
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Information on your arrival and departure airports
Cabin class types available on flights from Washington, D.C. to Helena
Cabin classes available on flights from Washington, D.C. to Helena. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Find direct flights to and from Washington, D.C. and Helena
Flights from domestic origins to Helena
More flights to Helena. Prices are the lowest found on KAYAK in the last 7 days. Price and availability is not guaranteed.
Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.