Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Helena to Washington, D.C. from $190

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.
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
$379Delta
Tue, Oct 27 - Fri, Oct 30
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
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
$384Delta
Tue, Oct 27 - Fri, Oct 30
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
6:05 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 23m2 stops Detroit Metropolitan Wayne County Salt Lake City
$389Delta
Tue, Oct 27 - Fri, Oct 30
United Airlines Logo
6:15 am - 5:50 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 35m1 stop Denver Intl
United Airlines Logo
6:30 am - 1:45 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
9h 15m1 stop Denver Intl
$429United Airlines
Fri, Sep 11 - Sun, Sep 13
United Airlines Logo
6:15 am - 5:50 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
9h 35m1 stop Denver Intl
United Airlines Logo
6:30 am - 1:45 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
9h 15m1 stop Denver Intl
$429United Airlines
Thu, Sep 10 - Mon, Sep 14
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
Delta Logo
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
$429Delta
Tue, Oct 6 - Sat, Oct 10
United Airlines Logo
2:26 pm - 11:19 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
6h 53m1 stop Denver Intl
United Airlines Logo
6:30 am - 1:45 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
9h 15m1 stop Denver Intl
$429United Airlines
Wed, Sep 9 - Sun, Sep 13
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
6:13 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 15m1 stop Salt Lake City
$434Delta
Wed, Oct 7 - Sat, Oct 10
Delta Logo
1:08 pm - 11:35 pmHLN  Helena-IAD Washington, D.C. Dulles Intl
8h 27m1 stop Salt Lake City
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
$434Delta
Tue, Oct 6 - Sat, Oct 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
6:05 am - 12:28 pmIAD  Washington, D.C. Dulles Intl-HLN Helena
8h 23m2 stops Detroit Metropolitan Wayne County Salt Lake City
$439Delta
Wed, Oct 7 - Sat, Oct 10

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Our best Delta deals on Helena to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Nov 7
HLN1:08 pmHelena
9h 34m
2 stops
IAD12:42 amWashington, D.C. Dulles Intl
Nov 11
IAD7:00 amWashington, D.C. Dulles Intl
7h 27m
1 stop
HLN12:27 pmHelena
$364
Delta
Oct 27
HLN1:08 pmHelena
8h 27m
1 stop
IAD11:35 pmWashington, D.C. Dulles Intl
Oct 30
IAD6:13 amWashington, D.C. Dulles Intl
8h 15m
1 stop
HLN12:28 pmHelena
$379
Delta
Oct 27
HLN1:08 pmHelena
9h 34m
2 stops
IAD12:42 amWashington, D.C. Dulles Intl
Oct 30
IAD6:13 amWashington, D.C. Dulles Intl
8h 15m
1 stop
HLN12:28 pmHelena
$384

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
Sep 9
HLN2:26 pmHelena
6h 53m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
Sep 13
IAD6:30 amWashington, D.C. Dulles Intl
9h 15m
1 stop
HLN1:45 pmHelena
$429
United Airlines
Jan 9
HLN2:30 pmHelena
6h 43m
1 stop
IAD11:13 pmWashington, D.C. Dulles Intl
Jan 12
IAD2:25 pmWashington, D.C. Dulles Intl
8h 34m
1 stop
HLN8:59 pmHelena
$459
United Airlines
Sep 16
HLN2:26 pmHelena
6h 53m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
Sep 20
IAD6:30 amWashington, D.C. Dulles Intl
9h 15m
1 stop
HLN1:45 pmHelena
$477

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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaWashington, D.C.

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

HLNIAD

Helena

Tue 10/27

1:08 pm-11:35 pm

1 stop8h 27m

Washington, D.C. Dulles Intl

Fri 10/30

6:13 am-12:28 pm

1 stop8h 15m

$379

HelenaWashington, D.C.

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

HLNIAD

Helena

Tue 10/27

1:08 pm-12:42 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Fri 10/30

6:13 am-12:28 pm

1 stop8h 15m

$384

HelenaWashington, D.C.

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

HLNIAD

Helena

Tue 10/27

1:08 pm-12:42 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Fri 10/30

6:05 am-12:28 pm

2 stops8h 23m

$389

HelenaWashington, D.C.

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

HLNIAD

Helena

Fri 9/11

6:15 am-5:50 pm

1 stop9h 35m

Washington, D.C. Dulles Intl

Sun 9/13

6:30 am-1:45 pm

1 stop9h 15m

$429

HelenaWashington, D.C.

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

HLNIAD

Helena

Thu 9/10

6:15 am-5:50 pm

1 stop9h 35m

Washington, D.C. Dulles Intl

Mon 9/14

6:30 am-1:45 pm

1 stop9h 15m

$429

HelenaWashington, D.C.

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

HLNIAD

Helena

Tue 10/6

1:08 pm-11:35 pm

1 stop8h 27m

Washington, D.C. Dulles Intl

Sat 10/10

6:13 am-12:28 pm

1 stop8h 15m

$429
Quickest round-trip

HelenaWashington, D.C.

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

HLNIAD

Helena

Wed 9/9

2:26 pm-11:19 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Sun 9/13

6:30 am-1:45 pm

1 stop9h 15m

$429

HelenaWashington, D.C.

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

HLNIAD

Helena

Wed 10/7

1:08 pm-12:42 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Sat 10/10

6:13 am-12:28 pm

1 stop8h 15m

$434

HelenaWashington, D.C.

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

HLNIAD

Helena

Tue 10/6

1:08 pm-11:35 pm

1 stop8h 27m

Washington, D.C. Dulles Intl

Sat 10/10

6:05 am-12:28 pm

2 stops8h 23m

$434

HelenaWashington, D.C.

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

HLNIAD

Helena

Wed 10/7

1:08 pm-12:42 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Sat 10/10

6:05 am-12:28 pm

2 stops8h 23m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, Alaska 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

$190

Fastest flight time

6h 43m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Helena in the past 72 hours is $190. 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 43m
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 43m.

  • 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
Laurel
Waldorf
Fredericksburg
Woodbridge
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Sterling
Springfield
Colonial Beach
Fairfax
Edgewood
Glen Burnie

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.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 9/26
Sat 10/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.