What is the cheapest airline that flies from Helena to Washington?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Helena to Washington

How many flights depart from Helena to State of Washington on average per day?

As of October 2026, 2 flights take off from Helena and land in State of Washington each day. The most common flight departure time for this route is 5:00PM, with 100% of daily flights taking off in the afternoon.

How many flights depart from Helena to State of Washington on average per week?

The number of flights available between Helena and State of Washington is 14 per week as of October 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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

Prices for flights from Helena Airport to Washington refresh daily.

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

As of October 2026, there is 1 operator available to choose from for flights from Helena Airport to Washington.

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

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 Helena Airport to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$134 Cheap Flights from Helena to Washington in 2026/27

Find the cheapest flights from Helena to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 pm - 5:50 pmHLN Helena-SEA Seattle/Tacoma Intl

1h 50mnonstop

1:48 pm - 4:23 pmSEA Seattle/Tacoma Intl-HLN Helena

1h 35mnonstop

$207Alaska Airlines

Wed, Jan 6 - Tue, Jan 12

12:50 pm - 4:53 pmHLN Helena-SEA Seattle/Tacoma Intl

5h 03m1 stop Salt Lake City

5:45 am - 12:24 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 39m1 stop Salt Lake City

$227Delta

Wed, Jan 6 - Tue, Jan 12

5:00 pm - 5:50 pmHLN Helena-SEA Seattle/Tacoma Intl

1h 50mnonstop

1:48 pm - 4:23 pmSEA Seattle/Tacoma Intl-HLN Helena

1h 35mnonstop

$237Alaska Airlines

Fri, Jan 8 - Sun, Jan 10

12:50 pm - 4:53 pmHLN Helena-SEA Seattle/Tacoma Intl

5h 03m1 stop Salt Lake City

5:45 am - 12:24 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 39m1 stop Salt Lake City

$247Delta

Wed, Jan 6 - Tue, Jan 12

12:50 pm - 4:53 pmHLN Helena-SEA Seattle/Tacoma Intl

5h 03m1 stop Salt Lake City

5:45 am - 12:24 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 39m1 stop Salt Lake City

$247Delta

Thu, Feb 18 - Mon, Feb 22

1:07 pm - 6:41 pmHLN Helena-SEA Seattle/Tacoma Intl

6h 34m1 stop Salt Lake City

5:35 am - 12:27 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 52m1 stop Salt Lake City

$262Delta

Fri, Nov 13 - Sat, Nov 14

1:07 pm - 4:53 pmHLN Helena-SEA Seattle/Tacoma Intl

4h 46m1 stop Salt Lake City

5:35 am - 12:27 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 52m1 stop Salt Lake City

$262Delta

Thu, Nov 12 - Sat, Nov 14

4:41 pm - 5:33 pmHLN Helena-SEA Seattle/Tacoma Intl

1h 52mnonstop

1:28 pm - 4:04 pmSEA Seattle/Tacoma Intl-HLN Helena

1h 36mnonstop

$277Alaska Airlines

Sat, Nov 14 - Sun, Nov 15

12:50 pm - 6:30 pmHLN Helena-SEA Seattle/Tacoma Intl

6h 40m1 stop Salt Lake City

5:45 am - 12:24 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 39m1 stop Salt Lake City

$277Delta

Thu, Feb 18 - Mon, Feb 22

4:41 pm - 5:33 pmHLN Helena-SEA Seattle/Tacoma Intl

1h 52mnonstop

1:28 pm - 4:04 pmSEA Seattle/Tacoma Intl-HLN Helena

1h 36mnonstop

$282Alaska Airlines

Sat, Nov 14 - Sun, Nov 15

Cheap last minute flights

Enter your travel dates to find the best prices.

1:08 pm - 7:02 pmHLN Helena-SEA Seattle/Tacoma Intl

6h 54m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$497Delta

Tue, Oct 20 - Sat, Oct 31

1:08 pm - 4:55 pmHLN Helena-SEA Seattle/Tacoma Intl

4h 47m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$497Delta

Mon, Oct 19 - Sat, Oct 31

1:08 pm - 4:55 pmHLN Helena-SEA Seattle/Tacoma Intl

4h 47m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$522Delta

Mon, Oct 19 - Sun, Oct 25

1:08 pm - 4:55 pmHLN Helena-SEA Seattle/Tacoma Intl

4h 47m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$522Delta

Mon, Oct 19 - Fri, Oct 30

7:15 am - 12:52 pmHLN Helena-SEA Seattle/Tacoma Intl

6h 37m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$522Delta

Tue, Oct 20 - Tue, Oct 27

1:08 pm - 6:52 pmHLN Helena-SEA Seattle/Tacoma Intl

6h 44m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$522Delta

Mon, Oct 19 - Thu, Oct 29

1:08 pm - 7:02 pmHLN Helena-SEA Seattle/Tacoma Intl

6h 54m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$522Delta

Tue, Oct 20 - Fri, Oct 30

1:08 pm - 4:55 pmHLN Helena-SEA Seattle/Tacoma Intl

4h 47m1 stop Salt Lake City

5:30 am - 12:28 pmSEA Seattle/Tacoma Intl-HLN Helena

5h 58m1 stop Salt Lake City

$522Delta

Tue, Oct 20 - Thu, Oct 29

5:26 pm - 6:18 pmHLN Helena-SEA Seattle/Tacoma Intl

1h 52mnonstop

2:09 pm - 4:44 pmSEA Seattle/Tacoma Intl-HLN Helena

1h 35mnonstop

$537Alaska Airlines

Mon, Oct 19 - Sat, Oct 31

5:26 pm - 6:18 pmHLN Helena-SEA Seattle/Tacoma Intl

1h 52mnonstop

2:09 pm - 4:44 pmSEA Seattle/Tacoma Intl-HLN Helena

1h 35mnonstop

$537Alaska Airlines

Tue, Oct 20 - Sat, Oct 31

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Alaska Airlines flights from Helena to State of Washington

Our best Alaska Airlines deals on Helena to State of Washington flight tickets

Alaska Airlines

Jan 6

HLN5:00 pmHelena

1h 50m

SEA5:50 pmSeattle/Tacoma Intl

Jan 12

SEA1:48 pmSeattle/Tacoma Intl

1h 35m

HLN4:23 pmHelena

$207

Alaska Airlines

Jan 8

HLN5:00 pmHelena

1h 50m

SEA5:50 pmSeattle/Tacoma Intl

Jan 10

SEA1:48 pmSeattle/Tacoma Intl

1h 35m

HLN4:23 pmHelena

$237

Alaska Airlines

Nov 14

HLN4:41 pmHelena

1h 52m

SEA5:33 pmSeattle/Tacoma Intl

Nov 15

SEA1:28 pmSeattle/Tacoma Intl

1h 36m

HLN4:04 pmHelena

$277

Delta flights from Helena to State of Washington

Our best Delta deals on Helena to State of Washington flight tickets

Delta

Jan 6

HLN12:50 pmHelena

5h 03m

1 stop

SEA4:53 pmSeattle/Tacoma Intl

Jan 12

SEA5:45 amSeattle/Tacoma Intl

5h 39m

1 stop

HLN12:24 pmHelena

$227

Delta

Jan 6

HLN12:50 pmHelena

5h 03m

1 stop

SEA4:53 pmSeattle/Tacoma Intl

Jan 12

SEA5:45 amSeattle/Tacoma Intl

5h 39m

1 stop

HLN12:24 pmHelena

$247

Delta

Nov 13

HLN1:07 pmHelena

4h 46m

1 stop

SEA4:53 pmSeattle/Tacoma Intl

Nov 14

SEA5:35 amSeattle/Tacoma Intl

5h 52m

1 stop

HLN12:27 pmHelena

$262

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

Wed 1/6

12:50 pm-4:53 pm

1 stop5h 03m

Seattle/Tacoma Intl

Tue 1/12

5:45 am-12:24 pm

1 stop5h 39m

$227

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Fri 1/8

5:00 pm-5:50 pm

Nonstop1h 50m

Seattle/Tacoma Intl

Sun 1/10

1:48 pm-4:23 pm

Nonstop1h 35m

$237

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Wed 1/6

12:50 pm-4:53 pm

1 stop5h 03m

Seattle/Tacoma Intl

Tue 1/12

5:45 am-12:24 pm

1 stop5h 39m

$247

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Thu 2/18

12:50 pm-4:53 pm

1 stop5h 03m

Seattle/Tacoma Intl

Mon 2/22

5:45 am-12:24 pm

1 stop5h 39m

$247

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Fri 11/13

1:07 pm-6:41 pm

1 stop6h 34m

Seattle/Tacoma Intl

Sat 11/14

5:35 am-12:27 pm

1 stop5h 52m

$262

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Thu 11/12

1:07 pm-4:53 pm

1 stop4h 46m

Seattle/Tacoma Intl

Sat 11/14

5:35 am-12:27 pm

1 stop5h 52m

$262

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/14

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Sun 11/15

1:28 pm-4:04 pm

Nonstop1h 36m

$277

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Thu 2/18

12:50 pm-6:30 pm

1 stop6h 40m

Seattle/Tacoma Intl

Mon 2/22

5:45 am-12:24 pm

1 stop5h 39m

$277

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/14

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Sun 11/15

1:28 pm-4:04 pm

Nonstop1h 36m

$282

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 Helena to State of Washington

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 State of Washington?

The month of February is, on average, the cheapest month to fly to State of Washington from Helena, with most prices found around $147. If you aren’t able to travel to State of Washington during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $177.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Helena to State of Washington is on a Wednesday. Travelers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as $207. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Helena to State of Washington for around $596.

What is the cheapest Helena to Washington flight route?

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

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

There are 4 cabin classes available to choose from on Helena to State of Washington 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 State of Washington flights?

No. A direct flight is the cheapest option for a flight between Helena to State of Washington.

Cheap Helena to State of Washington flight deals and tips

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

Best Price Found	$134
Fastest flight time	1h 52m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Helena in the past 72 hours is $134. The best round-trip flight deal from Helena to State of Washington found on momondo in the last 72 hours is $207.

The fastest flight from Helena to State of Washington takes 1h 52m

Direct flights go from Helena to State of Washington every day.

There are 96 airports in State of Washington. From Helena there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Helena to Washington

When did momondo last update prices for flights from Helena Airport to Washington?
Prices for flights from Helena Airport to Washington refresh daily.
How many operators does momondo search for flights from Helena Airport to Washington?
As of October 2026, there is 1 operator available to choose from for flights from Helena Airport to Washington.
How old do you have to be to fly from Helena Airport to Washington?
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 Helena Airport to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Helena to State of Washington?
Based on momondo bookings for flights between Helena and State of Washington, the leading plane model is Embraer 175, making up 73.08% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 7.69%, Boeing 737 MAX 9 with 3.85%, and Boeing 737 with 3.85%.

Best airlines flying from Helena to State of Washington

Compare and see reviews for airlines that fly from Helena to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $137	Free Cancellation	Rating 7.9 13,072 reviews		Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Washington from Helena 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 Washington quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Helena to Washington flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Washington from Helena. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from Helena and alert you when they change.