Find Cheap Flights from Washington Dulles Intl to Helena (IAD - HLN)

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

Sun 2/18
Sun 2/25
Any month
Compare vs. KAYAK |

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $501 or less.

FAQs for Booking Washington Dulles Intl to Helena Flights

How long does a flight from Washington Dulles Intl to Helena take?
An average nonstop flight takes 6h 27m, covering a distance of 1813 miles.
Which airlines provide the cheapest flights from Washington Dulles Intl to Helena?
In the past 3 days, the cheapest round-trip tickets were found on United ($405), Multiple Airlines ($425) and Delta ($442).
Do I need a passport to fly between Washington Dulles Intl and Helena?
No.
What’s the cheapest day of the week to fly Washington Dulles Intl to Helena?
For Washington Dulles Intl to Helena, Friday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Helena back to Washington Dulles Intl, the best deals are generally found on Tuesday, with Saturday being the most expensive.

Book cheap flights from Washington Dulles Intl to Helena (round-trip)

Airports
Origin
Washington
$405
only
$405
Destination
Helena
$405
only
$405
Fri, Apr 27
IAD
HLN
6h 49m
Sat, May 5
HLN
IAD
8h 52m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54614 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

GEG
SFO
Excellent 9.0

Need addl gate capacity at sfo including non-jetway options when other better options are unavailable.

CDG
IAD
Excellent 9.0

The entertainment interface and selection was fantastic!

Minor, but an arm rest would not stay up. Also, let's face it, the food food is never excellent, rarely good, but understandably hard to make so.

ORD
ATL
Okay 5.6

I was so pleased that United offered the flexibility to change my flight before the chicago snowstorm without incurring a change fee.

I paid for seats on my original flight. But ended up sitting separate from my traveling companion on the new flight.

LAX
IAH
Excellent 8.0

On time departure and arrive

No much variety of movies and tv shows to watch

Wed, Apr 11
IAD
HLN
7h 00m
Tue, Apr 17
HLN
IAD
7h 40m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 24
IAD
HLN
7h 00m
Wed, May 9
HLN
IAD
8h 08m
Trip: 16 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16046 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
OKC
DTW
Excellent 10.0

As usual

Landing was a bit rough

MSP
MZT
Mediocre 2.0

The flight was a Christmas gift for my mother to spend some time with her friends in Mazatlán. I heard she spent the entire day waiting at the airport as her flight was rescheduled 4 times.

MCI
LGA
Mediocre 2.0

Not much

Late bumby ride

DTW
AMS
Good 7.0

The vegan meal was not good

CZM
ATL
Excellent 10.0

easy but long day coming home

however on the initial trip to cozumel we where rerouted from kc to huntvilles therefore missing our connecting flight to cozumel so the airline was accomodating and reseated us on a flight to cancun instead and I was thankful but i know that that flight was cheaper when i booked this but i didnt want to make the treak to cancun and bus and then ferry to cozumel but ended up doing that anyway is there any way at all to be compensated for the diffrence I am not upset at all but that made for a really long day getting there Just putting it out there

Sat, Apr 28
IAD
HLN
6h 49m
Sat, May 5
HLN
IAD
8h 52m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54614 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
GEG
SFO
Excellent 9.0

Need addl gate capacity at sfo including non-jetway options when other better options are unavailable.

ORD
NRT
Good 6.0

Toilet is clean and seat is pretty comfortable for a long flight

Food taste is no good, no child meal and entertainment choices so limited and earphone is not comfortable specially for a long flight. No priority boarding with kids

EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

Wed, Mar 14
IAD
HLN
7h 22m
Wed, Mar 21
HLN
IAD
6h 18m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 25
IAD
HLN
7h 00m
Wed, May 9
HLN
IAD
8h 08m
Trip: 15 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16046 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
STL
ATL
Okay 4.6

They changed my flight to a different one departing 2 hours earlier and did not notify me! The original flight was still available & they would not let me take it despite my reservation paper work. CRAZY! I have a two hour drive to the airport this gave me the option to leave home at 2:30am or go the night before and pay for a hotel. Flight was managed by DELTA who also did not care! All involved blamed each other. Beware

CUN
MSP
Excellent 10.0

The flights were on time and they did two drink and snack services. Great crew!

AMS
JFK
Okay 5.6

Food was better than the usual airline food. We also got a Valentine's day chocolate.

seats too narrow, barely have room to sit and stand. No USB charger

MCI
ATL
Excellent 8.0

Rare, the flight wasn’t so full that everyone was uncomfortable. The flight attendant staff were friendly.

OKC
DTW
Excellent 10.0

As usual

Landing was a bit rough

Tue, Mar 13
IAD
HLN
6h 52m
Wed, Mar 21
HLN
IAD
9h 03m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54614 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
ATL
Okay 5.6

I was so pleased that United offered the flexibility to change my flight before the chicago snowstorm without incurring a change fee.

I paid for seats on my original flight. But ended up sitting separate from my traveling companion on the new flight.

EWR
BTV
Okay 4.6

When boarding, the agent said we had to check our rollaboards because they were our of overhead bin space. Hen we entered the plane, we saw that the entire back half of the plane had empty bins, but by that time it was too last to retrieve our bags.

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

GEG
SFO
Excellent 9.0

Need addl gate capacity at sfo including non-jetway options when other better options are unavailable.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

Tue, Jun 5
IAD
HLN
7h 00m
Wed, Jun 13
HLN
IAD
8h 28m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16046 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
OKC
DTW
Excellent 10.0

As usual

Landing was a bit rough

MCI
ATL
Excellent 8.0

Rare, the flight wasn’t so full that everyone was uncomfortable. The flight attendant staff were friendly.

MSP
MZT
Mediocre 2.0

The flight was a Christmas gift for my mother to spend some time with her friends in Mazatlán. I heard she spent the entire day waiting at the airport as her flight was rescheduled 4 times.

MCI
LGA
Mediocre 2.0

Not much

Late bumby ride

DTW
AMS
Good 7.0

The vegan meal was not good

Sat, Aug 18
IAD
HLN
6h 37m
Sat, Aug 25
HLN
IAD
8h 28m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 14
IAD
HLN
8h 35m
Wed, Mar 21
HLN
IAD
7h 39m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54614 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
NRT
Good 6.0

Toilet is clean and seat is pretty comfortable for a long flight

Food taste is no good, no child meal and entertainment choices so limited and earphone is not comfortable specially for a long flight. No priority boarding with kids

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

EWR
BTV
Okay 4.6

When boarding, the agent said we had to check our rollaboards because they were our of overhead bin space. Hen we entered the plane, we saw that the entire back half of the plane had empty bins, but by that time it was too last to retrieve our bags.

CDG
IAD
Excellent 9.0

The entertainment interface and selection was fantastic!

Minor, but an arm rest would not stay up. Also, let's face it, the food food is never excellent, rarely good, but understandably hard to make so.

LAX
IAH
Excellent 8.0

On time departure and arrive

No much variety of movies and tv shows to watch

Wed, Jun 13
IAD
HLN
7h 03m
Wed, Jun 20
HLN
IAD
8h 28m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16046 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
MCI
ATL
Excellent 8.0

Rare, the flight wasn’t so full that everyone was uncomfortable. The flight attendant staff were friendly.

STL
ATL
Okay 4.6

They changed my flight to a different one departing 2 hours earlier and did not notify me! The original flight was still available & they would not let me take it despite my reservation paper work. CRAZY! I have a two hour drive to the airport this gave me the option to leave home at 2:30am or go the night before and pay for a hotel. Flight was managed by DELTA who also did not care! All involved blamed each other. Beware

MSP
MZT
Mediocre 2.0

The flight was a Christmas gift for my mother to spend some time with her friends in Mazatlán. I heard she spent the entire day waiting at the airport as her flight was rescheduled 4 times.

MCI
LGA
Good 6.0

Too crowded overhead storage got filled right away. Had to place my bag under seat. Could not extend my legs.

DTW
AMS
Good 7.0

The vegan meal was not good

Fri, Aug 24
IAD
HLN
7h 57m
Thu, Aug 30
HLN
IAD
8h 28m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 28
IAD
HLN
6h 52m
Wed, Apr 4
HLN
IAD
7h 39m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54614 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
ATL
Okay 5.6

I was so pleased that United offered the flexibility to change my flight before the chicago snowstorm without incurring a change fee.

I paid for seats on my original flight. But ended up sitting separate from my traveling companion on the new flight.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

MUC
IAD
Excellent 10.0

I am muslim, but I forgot to arrange the kind of food I would prefer during the flight, and the gentlement I talked to said let me see what I could do to help you about it, and few minutes later came up with muslim meal. I was really happy! Thank you all again.

Nothing.

EWR
BTV
Okay 4.6

When boarding, the agent said we had to check our rollaboards because they were our of overhead bin space. Hen we entered the plane, we saw that the entire back half of the plane had empty bins, but by that time it was too last to retrieve our bags.

EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

Thu, Aug 23
IAD
HLN
7h 03m
Wed, Sep 5
HLN
IAD
8h 29m
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16046 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
MCI
LGA
Mediocre 2.0

Not much

Late bumby ride

MCI
LGA
Good 6.0

Too crowded overhead storage got filled right away. Had to place my bag under seat. Could not extend my legs.

MSP
MZT
Mediocre 2.0

The flight was a Christmas gift for my mother to spend some time with her friends in Mazatlán. I heard she spent the entire day waiting at the airport as her flight was rescheduled 4 times.

CUN
MSP
Excellent 10.0

The flights were on time and they did two drink and snack services. Great crew!

MCI
ATL
Excellent 8.0

Rare, the flight wasn’t so full that everyone was uncomfortable. The flight attendant staff were friendly.

Tue, Jun 5
IAD
HLN
7h 00m
Sat, Jun 16
HLN
IAD
6h 15m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 24
IAD
HLN
8h 23m
Tue, May 8
HLN
IAD
8h 59m
Trip: 15 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54614 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
IAH
Excellent 8.0

On time departure and arrive

No much variety of movies and tv shows to watch

ORD
STL
Excellent 8.0

flight was over two hours late because of a late incoming plane. That may be for good reason, but we weren't told until less than one hour before takeoff. It doesn't make sense that the airline just found out one hour before takeoff that the flight was two hours behind. We should have been told sooner about the delay, while we had other choices of alternate flights.

EWR
BTV
Okay 4.6

When boarding, the agent said we had to check our rollaboards because they were our of overhead bin space. Hen we entered the plane, we saw that the entire back half of the plane had empty bins, but by that time it was too last to retrieve our bags.

CDG
IAD
Excellent 9.0

The entertainment interface and selection was fantastic!

Minor, but an arm rest would not stay up. Also, let's face it, the food food is never excellent, rarely good, but understandably hard to make so.

EWR
PTY
Excellent 10.0

Friendly staff, great food.Overall good flight

Limited Space for Carry on luggage had to exit plane in order to check the bag in to cargo area. Confused as to why the crew chosen had no Spanish speaking attendants. We were going to panama there will more then 1 traveler that may not know how to speak English.

Sat, Aug 25
IAD
HLN
8h 30m
Thu, Sep 6
HLN
IAD
8h 33m
Trip: 13 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16046 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
AMS
JFK
Okay 5.6

Food was better than the usual airline food. We also got a Valentine's day chocolate.

seats too narrow, barely have room to sit and stand. No USB charger

STL
ATL
Okay 4.6

They changed my flight to a different one departing 2 hours earlier and did not notify me! The original flight was still available & they would not let me take it despite my reservation paper work. CRAZY! I have a two hour drive to the airport this gave me the option to leave home at 2:30am or go the night before and pay for a hotel. Flight was managed by DELTA who also did not care! All involved blamed each other. Beware

LGA
MCI
Excellent 10.0

The service and non stop smooth ride. Boarding was a new experiance taking a bus to the plane. Was quick and crew helpful storing my carryon. Everyone very helpful.

MCI
ATL
Excellent 8.0

Rare, the flight wasn’t so full that everyone was uncomfortable. The flight attendant staff were friendly.

MCI
LGA
Mediocre 2.0

Not much

Late bumby ride

Sat, Apr 28
IAD
HLN
6h 49m
Tue, May 8
HLN
IAD
8h 59m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54614 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
GEG
SFO
Excellent 9.0

Need addl gate capacity at sfo including non-jetway options when other better options are unavailable.

LAX
IAH
Excellent 8.0

On time departure and arrive

No much variety of movies and tv shows to watch

CDG
IAD
Excellent 9.0

The entertainment interface and selection was fantastic!

Minor, but an arm rest would not stay up. Also, let's face it, the food food is never excellent, rarely good, but understandably hard to make so.

ORD
NRT
Good 6.0

Toilet is clean and seat is pretty comfortable for a long flight

Food taste is no good, no child meal and entertainment choices so limited and earphone is not comfortable specially for a long flight. No priority boarding with kids

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

Sun, Aug 26
IAD
HLN
6h 27m
Thu, Sep 6
HLN
IAD
8h 33m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16046 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
CZM
ATL
Excellent 10.0

easy but long day coming home

however on the initial trip to cozumel we where rerouted from kc to huntvilles therefore missing our connecting flight to cozumel so the airline was accomodating and reseated us on a flight to cancun instead and I was thankful but i know that that flight was cheaper when i booked this but i didnt want to make the treak to cancun and bus and then ferry to cozumel but ended up doing that anyway is there any way at all to be compensated for the diffrence I am not upset at all but that made for a really long day getting there Just putting it out there

DTW
AMS
Good 7.0

The vegan meal was not good

MCI
LGA
Good 6.0

Too crowded overhead storage got filled right away. Had to place my bag under seat. Could not extend my legs.

AMS
JFK
Okay 5.6

Food was better than the usual airline food. We also got a Valentine's day chocolate.

seats too narrow, barely have room to sit and stand. No USB charger

MSP
MZT
Mediocre 2.0

The flight was a Christmas gift for my mother to spend some time with her friends in Mazatlán. I heard she spent the entire day waiting at the airport as her flight was rescheduled 4 times.

Wed, Jun 6
IAD
HLN
7h 00m
Sat, Jun 16
HLN
IAD
6h 15m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews

Washington Dulles Intl to Helena Flight Information

Flights Arrive in Helena
Flights Depart from Washington Dulles Intl
Flight Price $405
Distance 1813 miles
Airlines United, Delta
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.