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IAD - HLN

$219 Find cheap flights from Washington Dulles Airport to Helena

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Helena departing on 8/28. 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.
1 adult
0 bags
Thu 7/11
Thu 7/18

Search hundreds of travel sites at once for deals on flights to Helena

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helena, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helena, as well as popular online travel agencies
In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Dulles Intl to Helena (IAD-HLN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl 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 and deals for you by selecting your travel dates.
Choose your dates
4:10 pm - 9:29 pmIAD-HLN
7h 19m1 stop
6:45 am - 3:39 pmHLN-IAD
6h 54m1 stop
$438United Airlines
Find Deal
Tue, Oct 15 - Tue, Oct 22
7:06 pm - 3:33 pmIAD-HLN
22h 27m1 stop
4:13 pm - 4:27 pmHLN-IAD
22h 14m2 stops
$445Alaska Airlines
Find Deal
Tue, Oct 15 - Tue, Oct 22
7:15 am - 12:30 pmIAD-HLN
7h 15m1 stop
1:10 pm - 6:01 amHLN-IAD
14h 51m2 stops
$446Delta
Find Deal
Wed, Sep 25 - Wed, Oct 2
7:15 am - 12:31 pmIAD-HLN
7h 16m1 stop
1:11 pm - 11:50 pmHLN-IAD
8h 39m1 stop
$448Delta
Find Deal
Tue, Aug 6 - Wed, Aug 14
9:00 am - 3:33 pmIAD-HLN
32h 33m2 stops
4:13 pm - 9:30 pmHLN-IAD
27h 17m2 stops
$452Alaska Airlines
Find Deal
Tue, Oct 15 - Tue, Oct 22
7:09 pm - 3:01 pmIAD-HLN
21h 52m1 stop
4:13 pm - 11:59 pmHLN-IAD
29h 46m1 stop
$458Alaska Airlines
Find Deal
Wed, Sep 25 - Wed, Oct 2
7:15 am - 12:40 pmIAD-HLN
7h 25m1 stop
6:00 am - 4:30 pmHLN-IAD
8h 30m2 stops
$463Delta
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Wed, Jul 3 - Thu, Jul 11
4:16 pm - 11:54 pmIAD-HLN
33h 38m2 stops
4:13 pm - 9:30 pmHLN-IAD
27h 17m2 stops
$468Alaska Airlines
Find Deal
Wed, Sep 25 - Wed, Oct 2
4:10 pm - 9:18 pmIAD-HLN
7h 08m1 stop
6:45 am - 5:25 amHLN-IAD
20h 40m1 stop
$557United Airlines
Find Deal
Thu, Jul 4 - Wed, Jul 17
2:20 pm - 9:18 pmIAD-HLN
8h 58m1 stop
2:30 pm - 5:25 amHLN-IAD
12h 55m1 stop
$597United Airlines
Find Deal
Sat, Jul 6 - Thu, Jul 11

Flights from Dulles Intl to Helena - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Helena to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Helena?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Helena, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Helena is April, where tickets cost $482 on average. On the other hand, the most expensive months are January and May, where the average cost of tickets is $956 and $888 respectively.

Which airlines provide the cheapest flights from Washington Dulles Airport to Helena?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Washington Dulles Airport to Helena found on KAYAK was with Delta for $219. United Airlines proposed a round-trip connection from $438 and Alaska Airlines from $445.

Good to know

Cheapest flight

$219
Flight from Washington Dulles Airport to Helena

When to book flights from Dulles Intl to Helena

Are your dates flexible? Find out the best times to travel from Dulles Intl 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.

FAQs for booking Washington Dulles Airport to Helena flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Helena?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Helena was $219 for a one-way ticket and $438 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Helena?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Washington Dulles Airport to Helena?

    Washington Dulles Airport and Helena are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at Helena.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Helena?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Helena?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Helena, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Helena, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Helena are Delta and United Airlines. With an average price for the route of $726 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $763 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Helena?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Helena.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Helena?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Helena?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helena with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and HLN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Helena?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helena from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Dulles Intl to Helena

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Helena. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Helena? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10277 reviews
7.4Food
8.6Crew
7.9Comfort
8.0Entertainment
8.2Boarding
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Book cheap flights from Washington, D.C. to Helena

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Helena found on KAYAK in the last 72 hours.
8/28Wed
1 stopDelta
7h 16mIAD-HLN
$219
8/28Wed
2 stopsDelta
13h 26mIAD-HLN
$224
7/15Mon
2 stopsDelta
12h 08mIAD-HLN
$264
7/15Mon
1 stopAlaska Airlines
31h 22mIAD-HLN
$297
7/15Mon
1 stopAlaska Airlines
10h 03mIAD-HLN
$301
7/15Mon
1 stopUnited Airlines
7h 08mIAD-HLN
$359
6/25Tue
1 stopAlaska Airlines
10h 03mIAD-HLN
$372
7/15Mon
3 stopsUnited Airlines
25h 03mIAD-HLN
$457
6/26Wed
2 stopsUnited Airlines
14h 46mIAD-HLN
$508
6/27Thu
1 stopUnited Airlines
7h 09mIAD-HLN
$534

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Last minute flights from Dulles Intl to Helena

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Helena that are departing in the next 10 days.
6/14Fri
multi-stopUnited Airlines
29h 11mIAD-HLN
6/17Mon
multi-stopUnited Airlines
20h 32mHLN-IAD
$947
6/14Fri
multi-stopUnited Airlines
29h 11mIAD-HLN
6/17Mon
multi-stopUnited Airlines
15h 54mHLN-IAD
$972
6/14Fri
multi-stopDelta
7h 24mIAD-HLN
6/17Mon
multi-stopDelta
8h 40mHLN-IAD
$1,118

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Washington Dulles Airport - Helena Flights

Departure:

Washington Dulles Airport (IAD)United States

Destination:

Helena (HLN)United States

Return flight deals:

Helena - Washington Dulles Airport

Cabin classes:

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