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Cheap flights from Helena to Washington, D.C. from $208

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Helena to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:28 am - 5:55 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 27m1 stop Denver Intl
United Airlines Logo
8:20 am - 1:40 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 20m1 stop Denver Intl
$379United Airlines
Wed, Nov 11 - Sat, Nov 14
Delta Logo
1:07 pm - 11:47 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 40m1 stop Salt Lake City
Delta Logo
7:00 am - 12:27 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 27m1 stop Salt Lake City
$389Delta
Wed, Nov 11 - Sun, Nov 15
United Airlines Logo
6:28 am - 5:55 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 27m1 stop Denver Intl
United Airlines Logo
6:10 am - 1:40 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
9h 30m1 stop Denver Intl
$432United Airlines
Wed, Nov 11 - Sun, Nov 15
Delta Logo
1:07 pm - 12:41 amHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 34m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 12:27 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 27m1 stop Salt Lake City
$434Delta
Wed, Nov 11 - Sat, Nov 14
Delta Logo
1:10 pm - 11:36 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 26m2 stops Salt Lake City Minneapolis St Paul
Delta Logo
7:00 am - 12:30 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 30m1 stop Salt Lake City
$451Delta
Mon, Dec 7 - Thu, Dec 10
Delta Logo
1:08 pm - 12:42 amHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 34m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
12:27 pm - 10:24 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
11h 57m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$459Delta
Sat, Oct 24 - Wed, Oct 28
Delta Logo
1:10 pm - 11:47 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 37m1 stop Salt Lake City
Delta Logo
7:00 am - 12:30 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 30m1 stop Salt Lake City
$472Delta
Wed, Dec 2 - Tue, Dec 8
Delta Logo
1:10 pm - 11:47 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 37m1 stop Salt Lake City
Delta Logo
7:00 am - 12:30 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 30m1 stop Salt Lake City
$476Delta
Thu, Dec 3 - Tue, Dec 8
Delta Logo
1:07 pm - 12:41 amHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 34m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
11:10 am - 10:32 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
13h 22m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$489Delta
Wed, Nov 11 - Sat, Nov 14
United Airlines Logo
2:27 pm - 11:26 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
6h 59m1 stop Denver Intl
United Airlines Logo
8:15 am - 1:40 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
7h 25m1 stop Denver Intl
$499United Airlines
Sat, Jan 9 - Tue, Jan 12

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United Airlines flights from Helena to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Helena to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Nov 11
HLN6:28 amHelena
9h 27m
1 stop
IAD5:55 pmWashington, D.C. Dulles Intl
Nov 14
IAD8:20 amWashington, D.C. Dulles Intl
7h 20m
1 stop
HLN1:40 pmHelena
$379
United Airlines
Nov 11
HLN6:28 amHelena
9h 27m
1 stop
IAD5:55 pmWashington, D.C. Dulles Intl
Nov 15
IAD6:10 amWashington, D.C. Dulles Intl
9h 30m
1 stop
HLN1:40 pmHelena
$432
United Airlines
Jan 9
HLN2:27 pmHelena
6h 59m
1 stop
IAD11:26 pmWashington, D.C. Dulles Intl
Jan 12
IAD8:15 amWashington, D.C. Dulles Intl
7h 25m
1 stop
HLN1:40 pmHelena
$499

Alaska Airlines flights from Helena to Washington, D.C. Dulles Intl Airport

Our best Alaska Airlines deals on Helena to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Dec 1
HLN4:49 pmHelena
21h 26m
1 stop
IAD4:15 pmWashington, D.C. Dulles Intl
Dec 9
IAD7:00 amWashington, D.C. Dulles Intl
11h 12m
1 stop
HLN4:12 pmHelena
$601
Alaska Airlines
Nov 11
HLN4:41 pmHelena
22h 59m
2 stops
IAD5:40 pmWashington, D.C. Dulles Intl
Nov 15
IAD7:05 amWashington, D.C. Dulles Intl
10h 59m
1 stop
HLN4:04 pmHelena
$692
Alaska Airlines
Dec 7
HLN4:49 pmHelena
10h 46m
1 stop
IAD5:35 amWashington, D.C. Dulles Intl
Dec 10
IAD7:00 amWashington, D.C. Dulles Intl
11h 12m
1 stop
HLN4:12 pmHelena
$699

momondo Fare Finder

 
Use the filters below to find and compare flights from Helena to Washington, D.C. Dulles Intl Airport that are best for you.

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Depart

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Price

Cheapest round-trip

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Wed 11/11

6:28 am-5:55 pm

1 stop9h 27m

Washington, D.C. Dulles Intl

Sat 11/14

8:20 am-1:40 pm

1 stop7h 20m

$379

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Wed 11/11

1:07 pm-11:47 pm

1 stop8h 40m

Washington, D.C. Dulles Intl

Sun 11/15

7:00 am-12:27 pm

1 stop7h 27m

$389

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Wed 11/11

6:28 am-5:55 pm

1 stop9h 27m

Washington, D.C. Dulles Intl

Sun 11/15

6:10 am-1:40 pm

1 stop9h 30m

$432

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Wed 11/11

1:07 pm-12:41 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Sat 11/14

7:00 am-12:27 pm

1 stop7h 27m

$434

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Mon 12/7

1:10 pm-11:36 pm

2 stops8h 26m

Washington, D.C. Dulles Intl

Thu 12/10

7:00 am-12:30 pm

1 stop7h 30m

$451

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Sat 10/24

1:08 pm-12:42 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Wed 10/28

12:27 pm-10:24 pm

2 stops11h 57m

$459

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Wed 12/2

1:10 pm-11:47 pm

1 stop8h 37m

Washington, D.C. Dulles Intl

Tue 12/8

7:00 am-12:30 pm

1 stop7h 30m

$472

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Thu 12/3

1:10 pm-11:47 pm

1 stop8h 37m

Washington, D.C. Dulles Intl

Tue 12/8

7:00 am-12:30 pm

1 stop7h 30m

$476

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Wed 11/11

1:07 pm-12:41 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Sat 11/14

11:10 am-10:32 pm

2 stops13h 22m

$489
Quickest round-trip

HelenaWashington, D.C.

HLN Helena - IAD Washington, D.C. Dulles Intl

HLNIAD

Helena

Sat 1/9

2:27 pm-11:26 pm

1 stop6h 59m

Washington, D.C. Dulles Intl

Tue 1/12

8:15 am-1:40 pm

1 stop7h 25m

$499

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Helena to Washington, D.C. Dulles Intl Airport

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 airline that flies from Helena to Washington, D.C. Dulles Intl?

United Airlines and Delta are the most popular carriers operating from Helena to Washington, D.C. Dulles Intl

When to book flights from Helena to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Helena to Washington, D.C. Dulles Intl Airport (HLN to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Washington, D.C. Dulles Intl Airport

Best Price Found

$208

Fastest flight time

6h 59m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Helena in the past 72 hours is $208. The best round-trip flight deal from Helena to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $379.
The fastest flight from Helena to Washington, D.C. Dulles Intl Airport takes 6h 59m
There are no direct flights from Helena to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Helena to Washington, D.C. Dulles Intl Airport.
Search flight deals

Frequently asked questions about flying from Helena to Washington, D.C. Dulles Intl Airport

  • How far is Helena to Washington, D.C. Dulles Intl by plane?

    Helena and Washington, D.C. Dulles Intl are 1814.3 mi apart from one another. By plane, this route typically takes 6h 59m.

  • When did momondo last update prices for flights from Helena Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Helena Airport to Washington, D.C. Dulles Intl Airport were last updated today.

  • How old do you have to be to fly from Helena Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helena Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Winchester
Fredericksburg
Waldorf
Laurel
Woodbridge
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Sterling
Fairfax
Springfield
Edgewood
Glen Burnie
Chantilly

Why use momondo?

Why should I use momondo to find a flight deal from Helena to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Helena to Washington, D.C. for you.

Can I find flights from Helena to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Helena with this policy.

How can momondo help me find flights from Helena to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Helena.

I’m not ready to book a flight from Helena to Washington, D.C. right now. Can momondo alert me if prices change?

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

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