Find Cheap Flights from Seattle/Tacoma Intl to Helena (SEA - HLN)

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Sat 12/16
Sat 12/23
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Good to Know

Average Price:
$371
(avg. price over the last 2 weeks)
Good Deal:
$290
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Helena

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $290 or less.
The cheapest flight from Seattle/Tacoma Intl to Helena was found 90 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 18% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Seattle/Tacoma Intl to Helena Flights

How long does a flight from Seattle/Tacoma Intl to Helena take?
An average nonstop flight takes 1h 38m, covering a distance of 489 miles.
How many flights are there between Seattle/Tacoma Intl and Helena?
There are 21 (nonstop) flights between Seattle/Tacoma Intl and Helena per week, averaging 3 per day.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Helena?
In the past 3 days, the cheapest round-trip tickets were found on Alaska Airlines ($257), Multiple Airlines ($287) and Delta ($790).
Do I need a passport to fly between Seattle/Tacoma Intl and Helena?
No.
Which airlines fly most frequently between Seattle/Tacoma Intl and Helena?
American Airlines (1 times daily), Alaska Airlines (1 times daily), Korean Air (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Seattle/Tacoma Intl to Helena?
For Seattle/Tacoma Intl to Helena, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Helena back to Seattle/Tacoma Intl, the best deals are generally found on Tuesday, with Friday being the most expensive.

Book cheap flights from Seattle/Tacoma Intl to Helena (round-trip)

Airports
Origin
Seattle
$257
only
$257
Destination
Helena
$257
only
$257
Tue, Jan 16
SEA
HLN
1h 39m
Sat, Jan 20
HLN
SEA
1h 56m
Trip: 5 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 7 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.9
Food
8.0
DEN
SEA
Excellent 10.0

I checked my baggage with ease.The whole trip was without any inconvience. My daughter in CO made my reservations both ways thru you. I appreciated the great $fare. We will use you again . Thank You, Merry Christmas!

SEA
KTN
Excellent 10.0

The Captain of this flight did an awesome land g in Ketchikan, AK. The runway is short and this was the smoothest touchdown for a landing ever! Thank you whoever the Captain was!!!

The only part I could honestly say was I wish I booked an earlier flight to see Ketchikan from above prior to landing.

SEA
HLN
Mediocre 2.0

Flight was overbooked and I was denied boarding

PDX
SMF
Excellent 10.0

Customer service was great and there is actual legroom in coach!

SEA
ANC
Good 6.0

The in-flight entertainment was good, crew was good.

You had to pay for beer, are you got for a snack was a cookie.

Tue, Mar 6
SEA
HLN
1h 38m
Wed, Mar 21
HLN
SEA
1h 50m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Feb 15
SEA
HLN
1h 38m
Sun, Feb 18
HLN
SEA
2h 00m
Trip: 4 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 7 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.9
Food
8.0
DEN
SEA
Excellent 10.0

I checked my baggage with ease.The whole trip was without any inconvience. My daughter in CO made my reservations both ways thru you. I appreciated the great $fare. We will use you again . Thank You, Merry Christmas!

JFK
PDX
Excellent 8.0

The crew was very attentive to the passengers.

I was surprised that a meal was not complimentary.

SFO
SEA
Okay 5.3

I checked in to the flight 24 hours ahead to ensure I got an aisle seat, because I knew I’d probably be going back and forth from the bathroom because I had been feeling ill. When I got to the ticket check to board the flight, my name wasn’t found in the system, and I was turned away to go back to the front desk. So I did, and the person there was seemingly able to get me an aisle seat in the same row, just across from where I originally was. But, when I got to the row, another man was in that spot and showed me his ticket which was the same seat I’d seemingly been re-assigned! The middle seat was empty, and so I sat there for the time being, while we enquired about it. One of the flight attendants said they’d look into it, but just seemed to brush it off and never gave us a response. I was mainly annoyed about being shuffled around, getting reassigned a spot and was clear about wanting an aisle seat, and it never happened even though I chose that seat 24 hours ahead in the first place. I felt there were a few chances to make it right, but it never happened.

DFW
PDX
Excellent 10.0

Nice, easy flight. Boarding was smooth and easy. Really like their 20 minutes to have baggage to carousel rule....nice!

SEA
HLN
Mediocre 2.0

Flight was overbooked and I was denied boarding

Fri, Dec 22
SEA
HLN
6h 45m
Sun, Dec 24
HLN
SEA
5h 55m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14257 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
SEA
LAX
Okay 5.3

Mu seat!

My baggage took for to long to arrive

DTW
BNA
Mediocre 2.0

Sat on the plane on the tarmac for over an hour in the cold...

AMS
DTW
Mediocre 2.0

The most horrible experience. Pathetic to say the least. No water in the flight lavotries. Such a pathetic service from so called top airline.

GSO
ATL
Excellent 10.0

Plane nice and comfortable

DEN
ATL
Excellent 8.6

On two of the legs of the trip they notice I was a tall person with long legs and upgraded me to seats with more leg room!! I didn't even ask. Thank you.

On the way back there were open seats with extra leg room and I asked the gate attendant if it was possible to switch my seat to one with more room and they said they only could if I paid extra.

*
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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.