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Cheap flights from District of Columbia to Helena from $215

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Helena departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from District of Columbia to Helena

Cheap round-trip flights

Alaska Airlines Logo
6:09 pm - 3:21 pmIAD-HLN
23h 12m1 stop
Alaska Airlines Logo
4:02 pm - 7:33 amHLN-IAD
13h 31m1 stop
$430Alaska Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
Delta Logo
5:21 pm - 10:14 pmDCA-HLN
6h 53m1 stop
Delta Logo
5:45 am - 4:11 pmHLN-DCA
8h 26m1 stop
$431Delta
Find Deal
Sat, Sep 13 - Sat, Sep 20
Delta Logo
12:35 pm - 10:14 pmIAD-HLN
11h 39m2 stops
Delta Logo
1:00 pm - 11:33 pmHLN-IAD
8h 33m1 stop
$436Delta
Find Deal
Sat, Sep 13 - Sat, Sep 20
Delta Logo
7:30 am - 12:20 pmIAD-HLN
6h 50m1 stop
Delta Logo
1:00 pm - 6:01 amHLN-IAD
15h 01m2 stops
$462Delta
Find Deal
Sat, Sep 6 - Sat, Sep 13
Delta Logo
12:35 pm - 10:14 pmIAD-HLN
11h 39m2 stops
Delta Logo
1:00 pm - 6:01 amHLN-IAD
15h 01m2 stops
$467Delta
Find Deal
Sat, Sep 13 - Sat, Sep 20
Delta Logo
6:00 am - 12:20 pmDCA-HLN
8h 20m2 stops
Delta Logo
5:45 am - 4:11 pmHLN-DCA
8h 26m1 stop
$470Delta
Find Deal
Sat, Sep 13 - Sat, Sep 20
Alaska Airlines Logo
7:00 am - 3:21 pmIAD-HLN
10h 21m1 stop
Alaska Airlines Logo
4:02 pm - 7:33 amHLN-IAD
13h 31m1 stop
$475Alaska Airlines
Find Deal
Sat, Sep 6 - Sat, Sep 13
United Airlines Logo
2:39 pm - 9:11 pmIAD-HLN
8h 32m1 stop
United Airlines Logo
5:20 pm - 5:22 amHLN-IAD
10h 02m1 stop
$534United Airlines
Find Deal
Wed, Sep 10 - Sun, Sep 14
United Airlines Logo
4:08 pm - 8:59 pmIAD-HLN
6h 51m1 stop
United Airlines Logo
2:30 pm - 11:13 pmHLN-IAD
6h 43m1 stop
$589United Airlines
Find Deal
Mon, Jan 19 - Sun, Jan 25
United Airlines Logo
8:20 am - 9:11 pmIAD-HLN
14h 51m2 stops
United Airlines Logo
5:20 pm - 5:22 amHLN-IAD
10h 02m1 stop
$597United Airlines
Find Deal
Wed, Sep 10 - Sun, Sep 14

Alaska Airlines flights from District of Columbia to Helena

Our best Alaska Airlines deals on District of Columbia to Helena flight tickets
Alaska Airlines
Sep 13
IAD6:09 pmWashington, D.C. Dulles Intl
23h 12m
1 stop
HLN3:21 pmHelena
Sep 20
HLN4:02 pmHelena
13h 31m
1 stop
IAD7:33 amWashington, D.C. Dulles Intl
$430
Find similar
Alaska Airlines
Sep 6
IAD7:00 amWashington, D.C. Dulles Intl
10h 21m
1 stop
HLN3:21 pmHelena
Sep 13
HLN4:02 pmHelena
13h 31m
1 stop
IAD7:33 amWashington, D.C. Dulles Intl
$475
Find similar
Alaska Airlines
Nov 19
DCA8:00 amWashington, D.C. Reagan-National
11h 36m
1 stop
HLN5:36 pmHelena
Nov 22
HLN6:59 pmHelena
25h 00m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
$493
Find similar

Delta flights from District of Columbia to Helena

Our best Delta deals on District of Columbia to Helena flight tickets
Delta
Sep 13
DCA5:21 pmWashington, D.C. Reagan-National
6h 53m
1 stop
HLN10:14 pmHelena
Sep 20
HLN5:45 amHelena
8h 26m
1 stop
DCA4:11 pmWashington, D.C. Reagan-National
$431
Find similar
Delta
Sep 13
IAD12:35 pmWashington, D.C. Dulles Intl
11h 39m
2 stops
HLN10:14 pmHelena
Sep 20
HLN1:00 pmHelena
8h 33m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
$436
Find similar
Delta
Sep 6
IAD7:30 amWashington, D.C. Dulles Intl
6h 50m
1 stop
HLN12:20 pmHelena
Sep 13
HLN1:00 pmHelena
15h 01m
2 stops
IAD6:01 amWashington, D.C. Dulles Intl
$462
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 16, 2025.
Use the filters below to find and compare flights from District of Columbia to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/13

6:09 pm-3:21 pm

1 stop23h 12m

Helena

Sat 9/20

4:02 pm-7:33 am

1 stop13h 31m

$430

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 9/13

5:21 pm-10:14 pm

1 stop6h 53m

Helena

Sat 9/20

5:45 am-4:11 pm

1 stop8h 26m

$431

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/13

12:35 pm-10:14 pm

2 stops11h 39m

Helena

Sat 9/20

1:00 pm-11:33 pm

1 stop8h 33m

$436

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/6

7:30 am-12:20 pm

1 stop6h 50m

Helena

Sat 9/13

1:00 pm-6:01 am

2 stops15h 01m

$462

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/13

12:35 pm-10:14 pm

2 stops11h 39m

Helena

Sat 9/20

1:00 pm-6:01 am

2 stops15h 01m

$467

Washington, D.C.Helena

DCA - HLN

DCAHLN

Washington, D.C. Reagan-National

Sat 9/13

6:00 am-12:20 pm

2 stops8h 20m

Helena

Sat 9/20

5:45 am-4:11 pm

1 stop8h 26m

$470

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Sat 9/6

7:00 am-3:21 pm

1 stop10h 21m

Helena

Sat 9/13

4:02 pm-7:33 am

1 stop13h 31m

$475

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Wed 9/10

2:39 pm-9:11 pm

1 stop8h 32m

Helena

Sun 9/14

5:20 pm-5:22 am

1 stop10h 02m

$534

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Mon 1/19

4:08 pm-8:59 pm

1 stop6h 51m

Helena

Sun 1/25

2:30 pm-11:13 pm

1 stop6h 43m

$589

Washington, D.C.Helena

IAD - HLN

IADHLN

Washington, D.C. Dulles Intl

Wed 9/10

8:20 am-9:11 pm

2 stops14h 51m

Helena

Sun 9/14

5:20 pm-5:22 am

1 stop10h 02m

$597

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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How to get the cheapest flight ticket from District of Columbia to Helena

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Helena?

The cheapest day to depart from District of Columbia to Helena is on a Tuesday. Travelers who choose to depart for Helena on a Tuesday will often find tickets for as low as $545. The most expensive day to fly to Helena is Friday, with ticket prices averaging around $1,026.

What is the cheapest time of day to depart on your flight to Helena?

According to our data, the cheapest time of day to fly to Helena is in the morning. momondo users have found flights departing from District of Columbia to Helena in the morning for as low as $662. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is in the afternoon when prices are around $723.

Cheap District of Columbia to Helena flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Helena

Best Price Found

$215

Fastest flight time

6h 47m

Direct flights

None

Airports in Helena

1 airport
The best one-way flight to Helena from District of Columbia in the past 72 hours is $215. The best round-trip flight deal from District of Columbia to Helena found on momondo in the last 72 hours is $430.
The fastest flight from District of Columbia to Helena takes 6h 47m
There are no direct flights from District of Columbia to Helena. Popular non-direct routes for this connection are Washington, D.C. Reagan-National Airport - Helena Airport and Washington, D.C. Dulles Intl Airport - Helena Airport.
There is 1 airport near Helena: Helena (HLN)
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  • When did momondo last update prices for flights from District of Columbia to Helena Airport?

    Prices for flights from District of Columbia to Helena Airport are updated daily.

  • How old do you have to be to fly from District of Columbia to Helena Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The travel and health documents you'll need for your trip to Helena Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Helena

Compare and see reviews for airlines that fly from District of Columbia to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $412Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Helena?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from District of Columbia to Helena. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from District of Columbia to Helena with flexible booking policies on momondo?

momondo does allow users to show only those flights to Helena from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Helena?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to Helena.

I’m not ready to book a flight from District of Columbia to Helena right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Helena, momondo offers a useful price alert feature which will track prices for flights to Helena from District of Columbia and alert you when they change.

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