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HLN - SEA

$114 Find cheap flights from Helena to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to Seattle departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 5/26
Sun 6/2

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 44,738,066 times on KAYAK, and here is why:

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Cheap flight deals from Helena to Seattle (HLN-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:10 pm - 4:59 pmHLN-SEA
1h 49mnonstop
12:50 pm - 3:28 pmSEA-HLN
1h 38mnonstop
$227Alaska Airlines
Find Deal
Wed, Oct 2 - Sat, Oct 5
1:04 pm - 4:32 pmHLN-SEA
4h 28m1 stop
5:40 am - 12:36 pmSEA-HLN
5h 56m1 stop
$266Delta
Find Deal
Wed, Oct 2 - Sat, Oct 5
1:24 pm - 5:24 pmHLN-SEA
5h 00m1 stop
5:09 pm - 10:32 pmSEA-HLN
4h 23m1 stop
$356Delta
Find Deal
Wed, May 29 - Fri, May 31
6:00 am - 9:58 amHLN-SEA
4h 58m1 stop
5:30 am - 12:39 pmSEA-HLN
6h 09m1 stop
$376Delta
Find Deal
Wed, Jun 12 - Sun, Jun 16
7:00 am - 7:49 amHLN-SEA
1h 49mnonstop
9:19 pm - 11:59 pmSEA-HLN
1h 40mnonstop
$377Alaska Airlines
Find Deal
Wed, May 29 - Fri, May 31
1:15 pm - 4:40 pmHLN-SEA
4h 25m1 stop
5:15 pm - 10:31 pmSEA-HLN
4h 16m1 stop
$421Delta
Find Deal
Wed, Jul 10 - Wed, Jul 17
2:56 pm - 3:41 pmHLN-SEA
1h 45mnonstop
11:40 am - 2:16 pmSEA-HLN
1h 36mnonstop
$467Alaska Airlines
Find Deal
Thu, May 9 - Mon, May 13
2:15 pm - 9:20 pmHLN-SEA
8h 05m1 stop
3:30 pm - 9:26 pmSEA-HLN
28h 56m2 stops
$476United Airlines
Find Deal
Wed, May 29 - Fri, May 31
6:53 am - 12:46 amHLN-SEA
18h 53m2 stops
3:30 pm - 9:26 pmSEA-HLN
28h 56m2 stops
$514United Airlines
Find Deal
Wed, May 29 - Fri, May 31
2:20 pm - 6:08 pmHLN-SEA
28h 48m1 stop
5:00 am - 1:26 pmSEA-HLN
7h 26m1 stop
$540United Airlines
Find Deal
Tue, May 7 - Tue, May 14

Flights from Helena to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Helena to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Helena to Seattle?

The average price of all flights from Helena to Seattle clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Helena to Seattle, look for departures on Saturdays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from Seattle, Sunday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Helena to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Helena to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Helena to Seattle is January, where tickets cost $192 on average. On the other hand, the most expensive months are October and December, where the average cost of tickets is $339 and $309 respectively.

How far in advance should I book a flight from Helena to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Helena to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Helena to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 days before departure.

Which airlines provide the cheapest flights from Helena to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Helena to Seattle found on KAYAK was with Alaska Airlines for $114. Alaska Airlines proposed a round-trip connection from $227 and Delta from $266.

Which airlines fly non-stop between Helena and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Helena to Seattle.
There is just one airline that flies from Helena to Seattle direct and that is Alaska Airlines. The best one-way deal found from Alaska Airlines for the route is $108.

How many flights are there between Helena and Seattle per day?

Each day, there are 2 nonstop flights that take off from Helena and land in Seattle, with an average flight time of 1h 47m. The most common departure time is 7:00 am and most flights take off in the afternoon. Each week, there are 14 flights and there are the same amount of flights each day 2.

Which cabin class options are there for flights between Helena and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are First and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Helena to Seattle take?

Direct flights take on average 1h 45m to travel the 489 miles between Helena and Seattle.

What’s the earliest departure time from Helena to Seattle?

Early birds can take the earliest flight from Helena at 7:00 am and will be landing in Seattle at 7:49 am.

What’s the latest departure time from Helena to Seattle?

If you prefer to fly at night, the latest flight from Helena to Seattle jets off at 3:01 pm and lands at 3:45 pm.

Good to know

Low season

February

High season

October

Cheapest flight

$114
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Helena to Seattle

When to book flights from Helena to Seattle

Are your dates flexible? Find out the best times to travel from Helena to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helena to Seattle

  • What is the cheapest flight from Helena to Seattle?

    In the last 3 days, the lowest price for a flight from Helena to Seattle was $114 for a one-way ticket and $227 for a round-trip.

  • Do I need a passport to fly between Helena and Seattle?

    No, a passport isn't needed to fly from Helena to Seattle. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Helena to Seattle?

    Helena and Seattle are both served by 1 main airport. You will leave Helena from Helena and will be arriving at Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Helena to Seattle?

    Only Alaska Airlines offers inflight Wi-Fi service on the Helena to Seattle flight route.

  • Which aircraft models fly most regularly from Helena to Seattle?

    The Embraer 175 is the aircraft model that flies most regularly on the Helena to Seattle flight route.

  • Which airline alliances offer flights from Helena to Seattle?

    oneworld, and SkyTeam are the airline alliances operating flights between Helena and Seattle, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Helena to Seattle?

    There are nonstop flights from Helena to Seattle on a daily basis.

  • Which is the best airline for flights from Helena to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Helena to Seattle are Alaska Airlines and Delta. With an average price for the route of $248 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $458 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Helena to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Helena is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Helena with another airline. Booking your flights between Helena and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from HLN to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $189 or less one-way and $339 or less round-trip.

Prefer to fly non-stop from Helena to Seattle?

Find which airlines fly direct from Helena to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Helena to Seattle/Tacoma Intl

Monday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Tuesday

Alaska Airlines, Korean Air, Qatar Airways, +1 more

Alaska Airlines, Korean Air, +2 more

Wednesday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Thursday

Alaska Airlines, Korean Air, Qatar Airways, +1 more

Alaska Airlines, Korean Air, +2 more

Friday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Saturday

Alaska Airlines, Korean Air, Qatar Airways, +1 more

Alaska Airlines, Korean Air, +2 more

Sunday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Helena

Monday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Tuesday

Alaska Airlines, Korean Air, Qatar Airways, +1 more

Alaska Airlines, Korean Air, +2 more

Wednesday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Thursday

Alaska Airlines, Korean Air, Qatar Airways, +1 more

Alaska Airlines, Korean Air, +2 more

Friday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Saturday

Alaska Airlines, Korean Air, Qatar Airways, +1 more

Alaska Airlines, Korean Air, +2 more

Sunday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

See more direct flights
See more direct flights

Top airlines flying from Helena to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Helena to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helena to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9109 reviews
7.3entertainment
8.2boarding
8.6crew
7.3food
7.9comfort
Airline reviews

My flight went off without any hitch or issue. I anticipate issues every time I fly, luckily, I was wrong on this trip.

10.0 ExcellentAnonymous, Apr 2024TUS - SEA
Read more about Alaska Airlines reviews

My flight went off without any hitch or issue. I anticipate issues every time I fly, luckily, I was wrong on this trip.

It was much better than expected. Short flight and smaller plane so no entertainment or food.

It took around two hours to depart. Just sitting in the tamarack waiting. It impacted my traveling plans in a very dramatic way. When we returned, it took around two hours for us to be able to get our luggage. Ridiculous!!

I thought every thing was good with the acceptation of the long layover between Seattle and the Tampa trip.

While the flight and the legroom was good boarding took a long time. The different groups Boarding made no sense as those in the back of the flight boarded last causing delays as people try to find room for their luggage in the upper bins. While there were plenty of seats on the flights We were spaced so that some rows were filled and others were empty. My first flight was very crowded and uncomfortable. On the way back both flights did not have Wi-Fi nor the entertainment package. We were only made aware of this a few hours before the flight. Since the flight was in the morning, I was asleep and was not able to download Books or other media to my phone. This is my first time flying Alaska airlines and I will admit to thinking twice before I do so again.

Our flight was delayed by six hours, our plane never left Portland the night before but the airline didn’t inform anyone till two hours before a six am flight. The plane, our plane never left the west coast! No plane no flight, simply let folks know when you know, not hours and hours later. No one apologized, no one said much of anything, we were just expected to wait quietly and await instructions.

The staff were great and the layover times were excellent no multiple hours. I just hate the Boxed Water. So you really have to purchase high price water in the airport.

Both flights were delayed. We sat on the tarmac on Boise for 3 hours with little updates

This flight was significantly affected by poor wifi connections. I couldn’t get my work done because the wifi kept dropping. Even texts were not going through. There is no seat power in premium class either. I fly a lot. Today was my 10th flight in 4 weeks. This was by far the only flight that was sub par.

4 out of 4 flights cancelled or delayed. 5th trip with similar experience

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

Book cheap flights from Helena to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Helena to Seattle found on KAYAK in the last 72 hours.
9/14Sat
nonstopAlaska Airlines
1h 45mHLN-SEA
$114
9/14Sat
1 stopDelta
6h 34mHLN-SEA
$123
9/14Sat
2 stopsUnited Airlines
30h 01mHLN-SEA
$338
9/14Sat
3 stopsUnited Airlines
16h 14mHLN-SEA
$523

Search by stops

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Last minute flights from Helena to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Helena to Seattle that are departing in the next 10 days.
4/30Tue
multi-stopUnited Airlines
20h 27mHLN-SEA
5/7Tue
multi-stopUnited Airlines
11h 51mSEA-HLN
$619
4/30Tue
multi-stopUnited Airlines
29h 21mHLN-SEA
5/7Tue
multi-stopUnited Airlines
15h 11mSEA-HLN
$624
4/30Tue
multi-stopUnited Airlines
26h 03mHLN-SEA
5/7Tue
multi-stopUnited Airlines
12h 56mSEA-HLN
$640
4/29Mon
multi-stopDelta
7h 31mHLN-SEA
5/2Thu
multi-stopDelta
5h 55mSEA-HLN
$741
4/29Mon
nonstopAlaska Airlines
1h 45mHLN-SEA
5/2Thu
nonstopAlaska Airlines
1h 36mSEA-HLN
$757
4/29Mon
nonstopAlaska Airlines
1h 45mHLN-SEA
5/2Thu
nonstopAlaska Airlines
1h 36mSEA-HLN
$847
4/29Mon
multi-stopDelta
7h 31mHLN-SEA
5/2Thu
multi-stopDelta
5h 55mSEA-HLN
$866
4/29Mon
multi-stopUnited Airlines
13h 26mHLN-SEA
5/2Thu
multi-stopUnited Airlines
7h 21mSEA-HLN
$1,131
4/29Mon
multi-stopUnited Airlines
13h 26mHLN-SEA
5/2Thu
multi-stopUnited Airlines
12h 56mSEA-HLN
$1,136

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Helena - Seattle Flights

Departure:

Helena (HLN)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Helena

Cabin classes:

$366
$175