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HLN - SEA

$89 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
Mon 7/1
Mon 7/8

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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 42,787,818 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Helena to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Helena to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Helena to Seattle.

Recent one-way flight deals from Helena to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Helena to Seattle found on KAYAK recently.

Recent last minute flight deals from Helena to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Helena to Seattle.

Recent direct flight deals from Helena to Seattle

The latest deals for direct flights from Helena to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Helena to Seattle

Find recent round-trip train or bus tickets from Helena to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:13 pm - 4:58 pmHLN-SEA
1h 45mnonstop
12:57 pm - 3:33 pmSEA-HLN
1h 36mnonstop
$237Alaska Airlines
Find Deal
Wed, Oct 2 - Sat, Oct 5
7:00 am - 7:50 amHLN-SEA
1h 50mnonstop
9:22 pm - 11:59 pmSEA-HLN
1h 37mnonstop
$347Alaska Airlines
Find Deal
Sun, Jun 30 - Mon, Jul 1
1:10 pm - 6:54 pmHLN-SEA
6h 44m1 stop
5:30 am - 12:30 pmSEA-HLN
6h 00m1 stop
$372Delta
Find Deal
Wed, Oct 2 - Sat, Oct 5
1:04 pm - 6:38 pmHLN-SEA
6h 34m1 stop
5:15 pm - 10:35 pmSEA-HLN
4h 20m1 stop
$473Delta
Find Deal
Mon, Oct 14 - Wed, Oct 16
2:25 pm - 12:55 pmHLN-SEA
23h 30m2 stops
5:00 am - 1:50 pmSEA-HLN
7h 50m1 stop
$560United Airlines
Find Deal
Mon, Oct 14 - Wed, Oct 16
6:00 am - 10:03 amHLN-SEA
5h 03m1 stop
5:30 am - 12:40 pmSEA-HLN
6h 10m1 stop
$568Delta
Find Deal
Sun, Jun 30 - Mon, Jul 1
2:25 pm - 11:42 amHLN-SEA
22h 17m3 stops
5:00 am - 1:50 pmSEA-HLN
7h 50m1 stop
$615United Airlines
Find Deal
Mon, Oct 14 - Wed, Oct 16
6:45 am - 10:22 pmHLN-SEA
16h 37m2 stops
5:00 am - 1:50 pmSEA-HLN
7h 50m1 stop
$632United Airlines
Find Deal
Wed, Oct 2 - Sat, Oct 5
6:45 am - 8:02 amHLN-SEA
26h 17m1 stop
5:05 am - 9:18 pmSEA-HLN
15h 13m1 stop
$645United Airlines
Find Deal
Sun, Jun 30 - Sun, Jul 7
2:25 pm - 11:42 amHLN-SEA
22h 17m3 stops
5:00 am - 1:50 pmSEA-HLN
7h 50m1 stop
$646United Airlines
Find Deal
Wed, Oct 2 - Sat, Oct 5
3:44 pm - 4:29 pmHLN-SEA
1h 45mnonstop
$89Alaska Airlines
Find Deal
Sat, Sep 14
1:10 pm - 6:54 pmHLN-SEA
6h 44m1 stop
$108Delta
Find Deal
Sat, Sep 14
1:19 pm - 4:40 pmHLN-SEA
4h 21m1 stop
$228Delta
Find Deal
Tue, Jun 11
1:19 pm - 6:52 pmHLN-SEA
6h 33m1 stop
$239Delta
Find Deal
Mon, Jun 17
6:00 am - 10:03 amHLN-SEA
5h 03m1 stop
$268Delta
Find Deal
Wed, Jun 12
2:26 pm - 11:34 amHLN-SEA
22h 08m2 stops
$318United Airlines
Find Deal
Sat, Sep 14
6:45 am - 9:59 pmHLN-SEA
16h 14m3 stops
$428United Airlines
Find Deal
Sat, Sep 14
7:00 am - 7:50 amHLN-SEA
1h 50mnonstop
9:22 pm - 11:59 pmSEA-HLN
1h 37mnonstop
$347Alaska Airlines
Find Deal
Sun, Jun 30 - Mon, Jul 1

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 Monday, 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 February, where tickets cost $183 on average. On the other hand, the most expensive months are October and December, where the average cost of tickets is $333 and $333 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 43 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 $89. Alaska Airlines proposed a round-trip connection from $237 and Delta from $372.

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 3 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 morning. Each week, there are 21 flights and there are the same amount of flights each day 3.

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 50m 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 7:50 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 3:46 pm and lands at 4:32 pm.

Good to know

Low season

January

High season

October

Cheapest flight

$89
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 27% 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 $89 for a one-way ticket and $237 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 Boeing 737-900 Passenger/BBJ3 (winglets) 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

KAYAK’s top tips for finding a cheap flight from Helena to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $203 or less one-way and $439 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, Finnair, Korean Air, +1 more

Alaska Airlines, Finnair, +2 more

Wednesday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Thursday

Alaska Airlines, Finnair, Korean Air, +1 more

Alaska Airlines, Finnair, +2 more

Friday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Saturday

Alaska Airlines, Finnair, Korean Air, +1 more

Alaska Airlines, Finnair, +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, Finnair, Korean Air, +1 more

Alaska Airlines, Finnair, +2 more

Wednesday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Thursday

Alaska Airlines, Finnair, Korean Air, +1 more

Alaska Airlines, Finnair, +2 more

Friday

Alaska Airlines, Korean Air, Qatar Airways

Alaska Airlines, Korean Air, +1 more

Saturday

Alaska Airlines, Finnair, Korean Air, +1 more

Alaska Airlines, Finnair, +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 9197 reviews
8.6Crew
8.2Boarding
7.9Comfort
7.3Food
7.3Entertainment
Airline reviews

The flight itself went well, except it left 1.5 hours late, and about 10 of us missed our Alaska Airlines connection by minutes; they wouldn't hold the plane, even though our arrival delay was caused by Alaska. No gluten-free options among the snacks; you had to order meals separately, but there was no consideration for food sensitivities. NO TELEVISION on a flight from Washington, DC to Seattle or from Seattle to Anchorage. I didn't know that ANY airlines offering cross-country flights didn't have screens for entertainment. This alone is a "never again" for me.

6.0 GoodAnonymous, May 2024ANC - SEA
Read more about Alaska Airlines reviews

The flight itself went well, except it left 1.5 hours late, and about 10 of us missed our Alaska Airlines connection by minutes; they wouldn't hold the plane, even though our arrival delay was caused by Alaska. No gluten-free options among the snacks; you had to order meals separately, but there was no consideration for food sensitivities. NO TELEVISION on a flight from Washington, DC to Seattle or from Seattle to Anchorage. I didn't know that ANY airlines offering cross-country flights didn't have screens for entertainment. This alone is a "never again" for me.

I have to eat gluten-free due to celiac disease, but so far no Alaska Air flight has offered a gluten-free option for the snack given out with free drinks. It seems like that wouldn't be too hard to do.

I didn’t know that food needed to be ordered ahead. Please include this in the reservation information. Overall, very good experience.

Full flight where I had another passenger sitting in middle seat who said that he had lost 250 lbs from 500. The stewardess on exiting the flight advise me that I was going to receive a refund. I thought she was talking about another passenger. The stewardess saw that to make him comfortable I had lifted the armrest and flew for 5 hours to Seattle from Reagan DCA with a portion of his body on my seat. I survived. I flight to remember!!!!

the flight was delayed almost 3 hours and not one time was we told that it was delayed or why. I had asked one of the crew members why it was delayed, 20 minutes after the flight was supposed to take off, and was told that they had no idea what was going on and that they had not been told anything. this is FRIGHTENING!!!! No excuse!!

Flights were on time. Check in was fine. Crew members were pleasant.

I would have liked it to have been easier to order food for the flight. My son was not happy with the snack pack I bought him and it was a very long flight for a little boy to go without food.

Ground staff at LAX was very helpful. The Alaska lounge food and service is better than most airport lounges. I think the Staff are well trained polite and actually seem happy to work there. Great service Thanks 🙏 Jjk

The flight was very very delayed and arrived much later than planned. There was no communication about why or when our arrival would be. I would expect better and open communication about the flight but there was none. Also just pretzels? How disappointing.

I got to my destination but no comforts no snacks nothing. Like herding cows!!

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

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.

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
$89
9/14Sat
1 stopDelta
6h 44mHLN-SEA
$108
6/11Tue
1 stopDelta
4h 21mHLN-SEA
$228
6/17Mon
1 stopDelta
6h 33mHLN-SEA
$239
6/12Wed
1 stopDelta
5h 03mHLN-SEA
$268
9/14Sat
2 stopsUnited Airlines
22h 08mHLN-SEA
$318
9/14Sat
3 stopsUnited Airlines
16h 14mHLN-SEA
$428

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Helena - Seattle Flights

Departure:

Helena (HLN)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Helena

Cabin classes:

$2,055
$366
$226