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Cheap flights from Washington to Helena from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Helena departing on 1/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Washington to Helena

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
3:31 pm - 6:11 pm
SEA
-
HLN
1h 40mnonstop
Alaska Airlines Logo
6:48 pm - 7:47 pm
HLN
-
SEA
1h 59mnonstop
$177Alaska Airlines
Wed, Jan 21 - Sat, Jan 24
Alaska Airlines Logo
3:31 pm - 6:11 pm
SEA
-
HLN
1h 40mnonstop
Alaska Airlines Logo
6:48 pm - 7:47 pm
HLN
-
SEA
1h 59mnonstop
$197Alaska Airlines
Sun, Jan 18 - Sun, Jan 25
Delta Logo
5:25 am - 12:27 pm
SEA
-
HLN
6h 02m1 stop
Delta Logo
5:30 am - 9:17 am
HLN
-
SEA
4h 47m1 stop
$207Delta
Sun, Jan 18 - Sun, Jan 25
Alaska Airlines Logo
8:30 am - 3:59 pm
PDX
-
HLN
6h 29m1 stop
Alaska Airlines Logo
4:36 pm - 10:41 pm
HLN
-
PDX
7h 05m1 stop
$224Alaska Airlines
Sat, Feb 21 - Wed, Feb 25
Alaska Airlines Logo
8:25 am - 3:59 pm
PSC
-
HLN
6h 34m1 stop
Alaska Airlines Logo
4:36 pm - 8:55 pm
HLN
-
PSC
5h 19m1 stop
$224Alaska Airlines
Sat, Feb 21 - Wed, Feb 25
Delta Logo
5:00 am - 12:27 pm
SEA
-
HLN
6h 27m1 stop
Delta Logo
5:30 am - 9:17 am
HLN
-
SEA
4h 47m1 stop
$227Delta
Fri, Jan 23 - Sun, Jan 25
Alaska Airlines Logo
8:30 am - 3:59 pm
PDX
-
HLN
6h 29m1 stop
Alaska Airlines Logo
4:36 pm - 10:46 am
HLN
-
PDX
19h 10m1 stop
$234Alaska Airlines
Thu, Feb 19 - Wed, Feb 25
Delta Logo
7:15 am - 12:25 pm
PDX
-
HLN
28h 10m2 stops
Delta Logo
1:10 pm - 8:55 pm
HLN
-
PDX
8h 45m2 stops
$246Delta
Wed, Feb 18 - Wed, Feb 25
United Airlines Logo
5:00 am - 1:41 pm
SEA
-
HLN
7h 41m1 stop
United Airlines Logo
2:27 pm - 9:15 pm
HLN
-
SEA
7h 48m1 stop
$277United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
5:00 am - 1:41 pm
SEA
-
HLN
7h 41m1 stop
United Airlines Logo
6:15 am - 11:47 pm
HLN
-
SEA
18h 32m2 stops
$401United Airlines
Wed, Jan 21 - Sat, Jan 24

Alaska Airlines flights from State of Washington to Helena

Our best Alaska Airlines deals on State of Washington to Helena flight tickets
Alaska Airlines
Jan 21
SEA3:31 pmSeattle/Tacoma Intl
1h 40m
HLN6:11 pmHelena
Jan 24
HLN6:48 pmHelena
1h 59m
SEA7:47 pmSeattle/Tacoma Intl
$157
Find similar
Alaska Airlines
Jan 21
SEA3:31 pmSeattle/Tacoma Intl
1h 40m
HLN6:11 pmHelena
Jan 24
HLN6:48 pmHelena
1h 59m
SEA7:47 pmSeattle/Tacoma Intl
$177
Find similar
Alaska Airlines
Jan 18
SEA3:31 pmSeattle/Tacoma Intl
1h 40m
HLN6:11 pmHelena
Jan 25
HLN6:48 pmHelena
1h 59m
SEA7:47 pmSeattle/Tacoma Intl
$197
Find similar

United Airlines flights from State of Washington to Helena

Our best United Airlines deals on State of Washington to Helena flight tickets
United Airlines
Jan 21
SEA12:25 pmSeattle/Tacoma Intl
8h 01m
1 stop
HLN9:26 pmHelena
Jan 24
HLN6:15 amHelena
8h 43m
1 stop
SEA1:58 pmSeattle/Tacoma Intl
$277
Find similar
United Airlines
Jan 21
SEA12:25 pmSeattle/Tacoma Intl
8h 01m
1 stop
HLN9:26 pmHelena
Jan 24
HLN6:15 amHelena
18h 32m
2 stops
SEA11:47 pmSeattle/Tacoma Intl
$401
Find similar
United Airlines
Jan 21
SEA5:00 amSeattle/Tacoma Intl
7h 41m
1 stop
HLN1:41 pmHelena
Jan 24
HLN6:15 amHelena
15h 57m
3 stops
SEA9:12 pmSeattle/Tacoma Intl
$406
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Washington to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 1/21

3:31 pm-6:11 pm

Nonstop1h 40m

Helena

Sat 1/24

6:48 pm-7:47 pm

Nonstop1h 59m

$177

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Sun 1/18

3:31 pm-6:11 pm

Nonstop1h 40m

Helena

Sun 1/25

6:48 pm-7:47 pm

Nonstop1h 59m

$197

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Sun 1/18

5:25 am-12:27 pm

1 stop6h 02m

Helena

Sun 1/25

5:30 am-9:17 am

1 stop4h 47m

$207

PortlandHelena

PDX - HLN

PDXHLN

Portland

Sat 2/21

8:30 am-3:59 pm

1 stop6h 29m

Helena

Wed 2/25

4:36 pm-10:41 pm

1 stop7h 05m

$224

PascoHelena

PSC - HLN

PSCHLN

Pasco Tri Cities

Sat 2/21

8:25 am-3:59 pm

1 stop6h 34m

Helena

Wed 2/25

4:36 pm-8:55 pm

1 stop5h 19m

$224

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Fri 1/23

5:00 am-12:27 pm

1 stop6h 27m

Helena

Sun 1/25

5:30 am-9:17 am

1 stop4h 47m

$227

PortlandHelena

PDX - HLN

PDXHLN

Portland

Thu 2/19

8:30 am-3:59 pm

1 stop6h 29m

Helena

Wed 2/25

4:36 pm-10:46 am

1 stop19h 10m

$234

PortlandHelena

PDX - HLN

PDXHLN

Portland

Wed 2/18

7:15 am-12:25 pm

2 stops28h 10m

Helena

Wed 2/25

1:10 pm-8:55 pm

2 stops8h 45m

$246

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 1/21

5:00 am-1:41 pm

1 stop7h 41m

Helena

Sat 1/24

2:27 pm-9:15 pm

1 stop7h 48m

$277

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

Wed 1/21

5:00 am-1:41 pm

1 stop7h 41m

Helena

Sat 1/24

6:15 am-11:47 pm

2 stops18h 32m

$401

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helena from

How to get the cheapest flight ticket from State of Washington to Helena

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 month to fly to Helena?

If you aren’t able to travel to Helena during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $187.

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

The cheapest day to depart from State of Washington to Helena is on a Friday. Travelers who choose to depart for Helena on a Friday will often find tickets for as low as $217. The most expensive day to fly to Helena is Wednesday, with ticket prices averaging around $412.

What is the cheapest time of day to depart on your flight to Helena?

According to our data, the cheapest time of day to fly to Helena is in the afternoon. momondo users have found flights departing from State of Washington to Helena in the afternoon for as low as $197. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is in the morning when prices are around $298.

What is the cheapest Washington to Helena flight route?

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

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

There are 3 cabin classes available to choose from on Washington to Helena 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 State of Washington to Helena flights?

You could potentially save up to 51% on your flight if you consider stops on a State of Washington to Helena flight.

Cheap State of Washington to Helena flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Helena

Best Price Found

$197

Fastest flight time

4h 24m

Direct flights

Mon, Tue, Wed, Thu and Sat

Airports in Helena

1 airport
The best flight deal from State of Washington to Helena found on momondo in the last 72 hours is $197
The fastest flight from State of Washington to Helena takes 4h 24m
Direct flights go from State of Washington to Helena on Monday, Tuesday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport in Helena. From State of Washington there are direct flights to Helena (HLN).
Search flight deals

  • When did momondo last update prices for flights from Washington to Helena Airport?

    Prices for flights from Washington to Helena Airport were last updated today.

  • How many operators does momondo search for flights from Washington to Helena Airport?

  • How old do you have to be to fly from Washington to Helena Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The necessary travel and health documents for your Helena 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.

  • What is the most popular plane model from State of Washington to Helena?

Best airlines flying from State of Washington to Helena

Compare and see reviews for airlines that fly from State of Washington to Helena with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $157Free CancellationRating
8.0
11,512 reviews
Search Alaska Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Helena. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Helena from Washington with this policy.

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

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 Helena from Washington.

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

If you are not ready to book a flight from Washington to Helena now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Helena and let you know when they change.

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