Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Helena to Seattle from $134

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Helena to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
4:41 pm - 5:33 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 52mnonstop
Alaska Airlines Logo
1:28 pm - 4:04 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$201Alaska Airlines
Tue, Nov 10 - Tue, Nov 17
Alaska Airlines Logo
5:00 pm - 5:50 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 50mnonstop
Alaska Airlines Logo
1:48 pm - 4:23 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 35mnonstop
$207Alaska Airlines
Wed, Jan 6 - Tue, Jan 12
Alaska Airlines Logo
4:41 pm - 5:33 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 52mnonstop
Alaska Airlines Logo
1:28 pm - 4:04 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$207Alaska Airlines
Sat, Nov 7 - Tue, Nov 17
Alaska Airlines Logo
4:41 pm - 5:33 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 52mnonstop
Alaska Airlines Logo
1:28 pm - 4:04 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$207Alaska Airlines
Sat, Nov 7 - Tue, Nov 10
Alaska Airlines Logo
4:41 pm - 5:33 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 52mnonstop
Alaska Airlines Logo
1:28 pm - 4:04 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$207Alaska Airlines
Sat, Nov 14 - Wed, Nov 18
Alaska Airlines Logo
4:41 pm - 5:33 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 52mnonstop
Alaska Airlines Logo
1:28 pm - 4:04 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$207Alaska Airlines
Sat, Nov 7 - Wed, Nov 18
Delta Logo
1:07 pm - 6:41 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 34m1 stop Salt Lake City
Delta Logo
5:35 am - 12:27 pmSEA  Seattle/Tacoma Intl-HLN Helena
5h 52m1 stop Salt Lake City
$237Delta
Tue, Nov 10 - Tue, Nov 17
Delta Logo
1:07 pm - 6:41 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 34m1 stop Salt Lake City
Delta Logo
5:35 am - 12:27 pmSEA  Seattle/Tacoma Intl-HLN Helena
5h 52m1 stop Salt Lake City
$237Delta
Wed, Nov 11 - Tue, Nov 17
Delta Logo
1:08 pm - 7:02 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 54m1 stop Salt Lake City
Delta Logo
5:35 am - 12:27 pmSEA  Seattle/Tacoma Intl-HLN Helena
5h 52m1 stop Salt Lake City
$237Delta
Sat, Nov 7 - Sat, Nov 14
Delta Logo
1:07 pm - 4:58 pmHLN  Helena-SEA Seattle/Tacoma Intl
4h 51m1 stop Salt Lake City
Delta Logo
5:35 am - 12:27 pmSEA  Seattle/Tacoma Intl-HLN Helena
5h 52m1 stop Salt Lake City
$237Delta
Tue, Nov 10 - Sat, Nov 14

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

Alaska Airlines flights from Helena to Seattle

Our best Alaska Airlines deals on Helena to Seattle flight tickets
Alaska Airlines
Nov 10
HLN4:41 pmHelena
1h 52m
SEA5:33 pmSeattle/Tacoma Intl
Nov 17
SEA1:28 pmSeattle/Tacoma Intl
1h 36m
HLN4:04 pmHelena
$201
Alaska Airlines
Nov 7
HLN4:41 pmHelena
1h 52m
SEA5:33 pmSeattle/Tacoma Intl
Nov 10
SEA1:28 pmSeattle/Tacoma Intl
1h 36m
HLN4:04 pmHelena
$207
Alaska Airlines
Nov 9
HLN4:41 pmHelena
1h 52m
SEA5:33 pmSeattle/Tacoma Intl
Nov 17
SEA1:28 pmSeattle/Tacoma Intl
1h 36m
HLN4:04 pmHelena
$216

Delta flights from Helena to Seattle

Our best Delta deals on Helena to Seattle flight tickets
Delta
Nov 10
HLN1:07 pmHelena
6h 34m
1 stop
SEA6:41 pmSeattle/Tacoma Intl
Nov 17
SEA5:35 amSeattle/Tacoma Intl
5h 52m
1 stop
HLN12:27 pmHelena
$237
Delta
Oct 22
HLN1:08 pmHelena
4h 47m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Oct 27
SEA5:30 amSeattle/Tacoma Intl
5h 58m
1 stop
HLN12:28 pmHelena
$252
Delta
Dec 10
HLN1:10 pmHelena
4h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
Dec 13
SEA5:30 amSeattle/Tacoma Intl
6h 00m
1 stop
HLN12:30 pmHelena
$267

momondo Fare Finder

 
Use the filters below to find and compare flights from Helena to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Tue 11/10

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Tue 11/17

1:28 pm-4:04 pm

Nonstop1h 36m

$201
Quickest round-trip

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Wed 1/6

5:00 pm-5:50 pm

Nonstop1h 50m

Seattle/Tacoma Intl

Tue 1/12

1:48 pm-4:23 pm

Nonstop1h 35m

$207

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/7

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Tue 11/17

1:28 pm-4:04 pm

Nonstop1h 36m

$207

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/7

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Tue 11/10

1:28 pm-4:04 pm

Nonstop1h 36m

$207

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/14

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Wed 11/18

1:28 pm-4:04 pm

Nonstop1h 36m

$207

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/7

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Wed 11/18

1:28 pm-4:04 pm

Nonstop1h 36m

$207

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Tue 11/10

1:07 pm-6:41 pm

1 stop6h 34m

Seattle/Tacoma Intl

Tue 11/17

5:35 am-12:27 pm

1 stop5h 52m

$237

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Wed 11/11

1:07 pm-6:41 pm

1 stop6h 34m

Seattle/Tacoma Intl

Tue 11/17

5:35 am-12:27 pm

1 stop5h 52m

$237

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/7

1:08 pm-7:02 pm

1 stop6h 54m

Seattle/Tacoma Intl

Sat 11/14

5:35 am-12:27 pm

1 stop5h 52m

$237

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Tue 11/10

1:07 pm-4:58 pm

1 stop4h 51m

Seattle/Tacoma Intl

Sat 11/14

5:35 am-12:27 pm

1 stop5h 52m

$237

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Seattle from

How to get the cheapest flight ticket from Helena to Seattle

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 typical price of a round-trip flight between Helena and Seattle?

Prices are currently typical for flights on this route.

Typical prices usually range from $187 to $487.
The lowest price recently found on this route was $201.

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Helena to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $147. If you don’t want to visit Seattle in February, then you should wait until November to fly from Helena, when ticket prices are also cheap, with an average price of $157.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Helena is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $207. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Helena because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $596.

What is the cheapest Helena to Seattle/Tacoma Intl flight route?

Fly from Helena to Seattle/Tacoma Intl for the best Helena - Seattle/Tacoma Intl flight prices

What cabin class options are available on Helena to Seattle flights?

There are 4 cabin classes available to choose from on Helena to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Helena to Seattle flights?

No. A direct flight is the cheapest option for a flight between Helena to Seattle.

How have Helena to Seattle flight prices changed over time?

When to book flights from Helena to Seattle

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

Cheap Helena to Seattle (HLN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Seattle

Best Price Found

$134

Fastest flight time

1h 47m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Helena in the past 72 hours is $134. The best round-trip flight deal from Helena to Seattle found on momondo in the last 72 hours is $201.
The fastest flight from Helena to Seattle takes 1h 47m
Direct flights go from Helena to Seattle every day.
There is 1 airport in Seattle. From Helena there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Helena to Seattle

  • How far is Helena to Seattle/Tacoma Intl by plane?

    A flight from Helena to Seattle/Tacoma Intl will travel around 489.0 mi. Flights usually cover this in 1h 47m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Helena Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Helena Airport to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Helena Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Helena Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Helena to Seattle?

  • What is the most popular airline from Helena to Seattle?

Best airlines flying from Helena to Seattle

Compare and see reviews for airlines that fly from Helena to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $137Free CancellationRating
7.9
12,907 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Helena to Seattle

    Alaska Airlines flies from Helena to Seattle around 7 times per week, with 12,907 momondo users rating the airline 7.9/10. The cheapest Alaska Airlines deal from Helena to Seattle in the last 72 hours was $137 (round-trip), much lower than the average airfare cost of $220 for Alaska Airlines flights on this route.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Kent
Olympia
Redmond
Lakewood
Federal Way
Fife
Puyallup
Tukwila
Lynnwood
Cle Elum
Marysville
Kirkland
Lacey
Centralia
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Helena to Seattle?

It is quick and easy to find Helena to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

Can I find flights from Helena to Seattle with flexible booking policies on momondo?

All flight searches from Helena to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Helena to Seattle?

momondo helps you find the best flight between Helena and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Seattle from Helena are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Seattle 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
Sun 10/11
Sun 10/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States