What airlines fly to Helena?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Helena from Seattle according to our data. Alaska Airlines is the first choice among our users, with 83% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 3 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Helena?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Helena

How many flights depart from Seattle to Helena on average per day?

The number of flights available between Seattle and Helena is 3 per day as of November 2025. The most frequent departure time is 3:00PM, with 100% of daily flights leaving in the afternoon.

How many flights depart from Seattle to Helena on average per week?

The number of flights available between Seattle and Helena is 27 per week as of November 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

Prices for flights from Seattle/Tacoma Intl Airport to Helena Airport are refreshed on a daily basis.

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

There is 1 operator available for flights from Seattle/Tacoma Intl Airport to Helena Airport as of November 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport 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.

$104 Cheap Flights from Seattle to Helena in 2025/26

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Cheap round-trip flights

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3:13 pm - 5:51 pmSEA-HLN

1h 38mnonstop

6:28 pm - 7:20 pmHLN-SEA

1h 52mnonstop

$137Alaska Airlines

Find Deal

sáb., dic. 6 - mié., dic. 10

3:13 pm - 5:51 pmSEA-HLN

1h 38mnonstop

6:28 pm - 7:20 pmHLN-SEA

1h 52mnonstop

$147Alaska Airlines

Find Deal

mié., dic. 3 - mié., dic. 10

3:13 pm - 5:51 pmSEA-HLN

1h 38mnonstop

6:28 pm - 7:20 pmHLN-SEA

1h 52mnonstop

$157Alaska Airlines

Find Deal

mié., dic. 3 - lun., dic. 8

5:25 am - 12:25 pmSEA-HLN

6h 00m1 stop

5:30 am - 9:25 amHLN-SEA

4h 55m1 stop

$167Delta

Find Deal

jue., dic. 4 - mar., dic. 9

5:25 am - 12:25 pmSEA-HLN

6h 00m1 stop

1:06 pm - 4:54 pmHLN-SEA

4h 48m1 stop

$177Delta

Find Deal

jue., dic. 4 - lun., dic. 8

3:13 pm - 5:51 pmSEA-HLN

1h 38mnonstop

6:28 pm - 7:20 pmHLN-SEA

1h 52mnonstop

$184Alaska Airlines

Find Deal

lun., dic. 8 - mar., dic. 9

5:25 am - 12:25 pmSEA-HLN

6h 00m1 stop

1:06 pm - 4:54 pmHLN-SEA

4h 48m1 stop

$207Delta

Find Deal

dom., dic. 7 - mié., dic. 10

12:35 pm - 9:22 pmSEA-HLN

7h 47m1 stop

2:30 pm - 11:15 pmHLN-SEA

9h 45m2 stops

$282United Airlines

Find Deal

jue., dic. 4 - lun., dic. 8

12:35 pm - 9:22 pmSEA-HLN

7h 47m1 stop

2:30 pm - 11:15 pmHLN-SEA

9h 45m2 stops

$337United Airlines

Find Deal

sáb., dic. 6 - mié., dic. 10

12:25 pm - 9:26 pmSEA-HLN

8h 01m1 stop

2:27 pm - 11:30 amHLN-SEA

22h 03m2 stops

$416United Airlines

Find Deal

vie., ene. 23 - dom., ene. 25

Delta flights from Seattle to Helena

Our best Delta deals on Seattle to Helena flight tickets

Delta

Dec 4

SEA5:25 amSeattle/Tacoma Intl

6h 00m

1 stop

HLN12:25 pmHelena

Dec 9

HLN5:30 amHelena

4h 55m

1 stop

SEA9:25 amSeattle/Tacoma Intl

$167

Find similar

Delta

Dec 4

SEA5:25 amSeattle/Tacoma Intl

6h 00m

1 stop

HLN12:25 pmHelena

Dec 8

HLN1:06 pmHelena

4h 48m

1 stop

SEA4:54 pmSeattle/Tacoma Intl

$177

Find similar

Delta

Dec 7

SEA5:25 amSeattle/Tacoma Intl

6h 00m

1 stop

HLN12:25 pmHelena

Dec 10

HLN1:06 pmHelena

4h 48m

1 stop

SEA4:54 pmSeattle/Tacoma Intl

$207

Find similar

United Airlines flights from Seattle to Helena

Our best United Airlines deals on Seattle to Helena flight tickets

United Airlines

Dec 4

SEA12:35 pmSeattle/Tacoma Intl

7h 47m

1 stop

HLN9:22 pmHelena

Dec 8

HLN2:30 pmHelena

9h 45m

2 stops

SEA11:15 pmSeattle/Tacoma Intl

$282

Find similar

United Airlines

Dec 6

SEA12:35 pmSeattle/Tacoma Intl

7h 47m

1 stop

HLN9:22 pmHelena

Dec 10

HLN2:30 pmHelena

9h 45m

2 stops

SEA11:15 pmSeattle/Tacoma Intl

$337

Find similar

United Airlines

Jan 23

SEA12:25 pmSeattle/Tacoma Intl

8h 01m

1 stop

HLN9:26 pmHelena

Jan 25

HLN2:27 pmHelena

22h 03m

2 stops

SEA11:30 amSeattle/Tacoma Intl

$416

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

sáb. 12/6

3:13 pm-5:51 pm

Nonstop1h 38m

Helena

mié. 12/10

6:28 pm-7:20 pm

Nonstop1h 52m

$137

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

mié. 12/3

3:13 pm-5:51 pm

Nonstop1h 38m

Helena

mié. 12/10

6:28 pm-7:20 pm

Nonstop1h 52m

$147

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

mié. 12/3

3:13 pm-5:51 pm

Nonstop1h 38m

Helena

lun. 12/8

6:28 pm-7:20 pm

Nonstop1h 52m

$157

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

jue. 12/4

5:25 am-12:25 pm

1 stop6h 00m

Helena

mar. 12/9

5:30 am-9:25 am

1 stop4h 55m

$167

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

jue. 12/4

5:25 am-12:25 pm

1 stop6h 00m

Helena

lun. 12/8

1:06 pm-4:54 pm

1 stop4h 48m

$177

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

lun. 12/8

3:13 pm-5:51 pm

Nonstop1h 38m

Helena

mar. 12/9

6:28 pm-7:20 pm

Nonstop1h 52m

$184

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

dom. 12/7

5:25 am-12:25 pm

1 stop6h 00m

Helena

mié. 12/10

1:06 pm-4:54 pm

1 stop4h 48m

$207

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

jue. 12/4

12:35 pm-9:22 pm

1 stop7h 47m

Helena

lun. 12/8

2:30 pm-11:15 pm

2 stops9h 45m

$282

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

sáb. 12/6

12:35 pm-9:22 pm

1 stop7h 47m

Helena

mié. 12/10

2:30 pm-11:15 pm

2 stops9h 45m

$337

SeattleHelena

SEA - HLN

SEAHLN

Seattle/Tacoma Intl

vie. 1/23

12:25 pm-9:26 pm

1 stop8h 01m

Helena

dom. 1/25

2:27 pm-11:30 am

2 stops22h 03m

$416

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle 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

Prices

Airlines

Other information

What is the cheapest month to fly to Helena?

If you aren’t able to travel to Helena during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $217.

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

The cheapest day to depart from Seattle to Helena is on a Monday. Travelers who choose to depart for Helena on a Monday will often find tickets for as low as $157. The most expensive day to fly to Helena is Wednesday, with ticket prices averaging around $368.

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 Seattle 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 $308.

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

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

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl 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 Seattle to Helena flights?

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

How have Seattle to Helena flight prices changed over time?

When to book flights from Seattle to Helena

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

Estimated round-trip price

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

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

Best Price Found	$157
Fastest flight time	1h 33m
Direct flights	Every day
Airports in Helena	1 airport

The best flight deal from Seattle to Helena found on momondo in the last 72 hours is $157

The fastest flight from Seattle to Helena takes 1h 33m

Direct flights go from Seattle to Helena every day.

There is 1 airport near Helena: Helena (HLN)

Search flight deals

How far is Seattle/Tacoma Intl to Helena by plane?
Helena is 489.0 mi away from Seattle/Tacoma Intl. Typically, this will take 1h 33m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Helena Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Helena Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Helena Airport?
There is 1 operator available for flights from Seattle/Tacoma Intl Airport to Helena Airport as of November 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Helena Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport 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 Seattle to Helena?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to Helena is Embraer 175 (60.87% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (26.09%), Embraer 175 (Enhanced Winglets) (8.70%), and Boeing 737-800 Passenger/BBJ2 (winglets) (4.35%).
What is the most popular airline from Seattle to Helena?
Based on momondo bookings for flights between Seattle and Helena, the leading airline is Alaska Airlines, making up 100% of the total bookings.

Best airlines flying from Seattle to Helena

Compare and see reviews for airlines that fly from Seattle to Helena with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $157	Free Cancellation	Rating 8.0 11,247 reviews		Search Alaska Airlines flights

Alaska Airlines Flights From Seattle to Helena
Alaska Airlines flight deals from Seattle to Helena start from $157 round-trip. Over the 6 Alaska Airlines flights for this route in a normal week, average airfare is usually $240 round-trip - but some users have found much cheaper deals with momondo.

Why use momondo?

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

Finding the right flight to Helena from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Helena quick and easy, saving you time and money.

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

Flights from Seattle to Helena with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Seattle to Helena flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to Helena flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Helena 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

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sáb. 12/6

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Cheap flights from Seattle to Helena from $104

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Helena departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Delta flights from Seattle to Helena

Our best Delta deals on Seattle to Helena flight tickets

United Airlines flights from Seattle to Helena

Our best United Airlines deals on Seattle to Helena flight tickets

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

See travel insights to Helena from

How to get the cheapest flight ticket from Seattle 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 February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $217.

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

The cheapest day to depart from Seattle to Helena is on a Monday. Travelers who choose to depart for Helena on a Monday will often find tickets for as low as $157. The most expensive day to fly to Helena is Wednesday, with ticket prices averaging around $368.

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

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

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

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl 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 Seattle to Helena flights?

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

How have Seattle to Helena flight prices changed over time?

What is the cheapest airline that flies from Seattle/Tacoma Intl to Helena?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Helena

What airlines fly to Helena?

How many flights depart from Seattle to Helena on average per day?

The number of flights available between Seattle and Helena is 3 per day as of November 2025. The most frequent departure time is 3:00PM, with 100% of daily flights leaving in the afternoon.

How many flights depart from Seattle to Helena on average per week?

The number of flights available between Seattle and Helena is 27 per week as of November 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

When to book flights from Seattle to Helena

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Helena

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

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

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

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

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

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

What is the most popular airline from Seattle to Helena?

Best airlines flying from Seattle to Helena

Compare and see reviews for airlines that fly from Seattle to Helena with momondo

Alaska Airlines Flights From Seattle to Helena

Why use momondo?

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

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

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

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

An easier way to manage your Helena 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Montana