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HLN - SEA

$119 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 6/20. 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
Fri 6/7
Fri 6/14

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 43,968,530 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
1:24 pm - 6:26 pmHLN-SEA
6h 02m1 stop
5:10 pm - 10:45 pmSEA-HLN
4h 35m1 stop
$196Delta
Find Deal
Tue, Jun 4 - Tue, Jun 11
3:01 pm - 3:45 pmHLN-SEA
1h 44mnonstop
9:19 pm - 11:59 pmSEA-HLN
1h 40mnonstop
$207Alaska Airlines
Find Deal
Fri, Jun 7 - Wed, Jun 12
7:00 am - 7:49 amHLN-SEA
1h 49mnonstop
9:19 pm - 11:59 pmSEA-HLN
1h 40mnonstop
$217Alaska Airlines
Find Deal
Thu, May 30 - Sat, Jun 1
7:00 am - 7:50 amHLN-SEA
1h 50mnonstop
12:22 pm - 3:05 pmSEA-HLN
1h 43mnonstop
$237Alaska Airlines
Find Deal
Fri, Aug 2 - Wed, Aug 7
5:55 am - 9:20 amHLN-SEA
4h 25m1 stop
5:40 am - 12:30 pmSEA-HLN
5h 50m1 stop
$256Delta
Find Deal
Thu, Aug 15 - Wed, Aug 21
7:00 am - 7:50 amHLN-SEA
1h 50mnonstop
12:22 pm - 3:05 pmSEA-HLN
1h 43mnonstop
$257Alaska Airlines
Find Deal
Thu, Aug 1 - Tue, Aug 6
5:55 am - 9:20 amHLN-SEA
4h 25m1 stop
5:40 am - 12:30 pmSEA-HLN
5h 50m1 stop
$276Delta
Find Deal
Thu, Aug 8 - Mon, Aug 12
2:26 pm - 7:57 amHLN-SEA
18h 31m1 stop
5:00 am - 1:40 pmSEA-HLN
7h 40m1 stop
$395United Airlines
Find Deal
Tue, Aug 20 - Tue, Aug 27
6:45 am - 7:27 pmHLN-SEA
13h 42m2 stops
5:00 am - 1:40 pmSEA-HLN
7h 40m1 stop
$411United Airlines
Find Deal
Tue, Aug 27 - Mon, Sep 2
6:45 am - 7:27 pmHLN-SEA
13h 42m2 stops
2:08 pm - 1:40 pmSEA-HLN
22h 32m2 stops
$450United Airlines
Find Deal
Tue, Aug 27 - Sat, Aug 31

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 $119. Delta proposed a round-trip connection from $196 and Alaska Airlines from $207.

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 46m. The most common departure time is 7:00 am and most flights take off in the morning. 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 44m 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

$119
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 $119 for a one-way ticket and $196 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 $234 or less one-way and $369 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 9141 reviews
8.2Boarding
7.9Comfort
7.3Food
7.3Entertainment
8.6Crew
Airline reviews

The flight was great. The pilot was great. It was really annoying that the staff had facemasks on. Hard to hear what they’re saying when a mask is covering their mouth. I enjoyed the flight, but there was a crying baby in front of me. You guys should offer flights baby free. I would be very into that me and the person next to me discussed how they should make free flights for all of us that don’t have kids. I wouldn’t mind paying extra to not have to deal with the smell of a dirty diaper or screaming of a child. Also, if they had a separate room, the babies could be sent to the back with a curtain or something muddle the horrible sounds.

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

The flight was great. The pilot was great. It was really annoying that the staff had facemasks on. Hard to hear what they’re saying when a mask is covering their mouth. I enjoyed the flight, but there was a crying baby in front of me. You guys should offer flights baby free. I would be very into that me and the person next to me discussed how they should make free flights for all of us that don’t have kids. I wouldn’t mind paying extra to not have to deal with the smell of a dirty diaper or screaming of a child. Also, if they had a separate room, the babies could be sent to the back with a curtain or something muddle the horrible sounds.

Smooth. Courteous. Fun. One problem: the wheels on my checked roller back were broken when I picked up baggage at destination. Must have happened during flight baggage handling but I don’t know where.

Staff very helpful and friendly, in flight entertainment poor. Flight left late and thus arrived 20 minutes late to final destination.

First time flying with Alaska and the staff were All professional from checkin to departure! I do plan to book more flights with Alaska. Thanks

Boarded the plain and had to wait 1 hour for crew Captain to arrive from another flight

Overall good flight, smooth and on time and comfortable. Disappointing that food is not served and you can't purchase the snack packs on the plane.

There was a row with three women who were very loud - talking and laughing. In an open, outdoor setting that's fine. On an airplane, no. The flight attendants told the women they were the fun row. It took the woman sitting in the row ahead of the loud women to tell them they were too loud, but everyone in the general vicinity was irritated. I didn't think it would be possible to be so rowdy for so long. Then when we landed we weren't let off at a gate. We had to be bussed in and the bus contended with airline traffic. After dealing with the loud passengers, this was not what I was expecting. An incredibly disappointing experience with an airline that I have always regarded as one of the better ones.

They oversold my flight by 9 seats so when I went to check in I was not assigned a seat and the only one available if I didn’t want to chance it were 100 dollars more

Was not happy that we had to wait an additional 50 minutes for passengers that were still in TSA. This delay made us miss our connecting flight in Seattle to get home to tuck in our two little toddlers. We ran off the plane and ran across the entire airport trying to make this flight only to get to the gate to see that they have ended boarding. So they were willing to wait for passengers in Hawaii but not Seattle?? Especially when this wasn't even our fault. I expect to receive miles for missing our flight and spending an additional 4 hours in Seattle.

Better organizing of entry and exit onto the plane regarding all of the baggage people haul on. There should be a better system so those with no baggage can get in and out more quickly. The baggage haul-on situation is absurd.

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.
6/20Thu
nonstopAlaska Airlines
1h 50mHLN-SEA
$119
6/20Thu
1 stopDelta
4h 21mHLN-SEA
$128
5/21Tue
nonstopAlaska Airlines
1h 49mHLN-SEA
$239
5/21Tue
1 stopDelta
4h 24mHLN-SEA
$248
5/18Sat
nonstopAlaska Airlines
1h 44mHLN-SEA
$304
5/18Sat
1 stopDelta
5h 00mHLN-SEA
$313
9/14Sat
2 stopsUnited Airlines
30h 01mHLN-SEA
$328
6/20Thu
2 stopsUnited Airlines
16h 22mHLN-SEA
$388
5/21Tue
2 stopsUnited Airlines
22h 47mHLN-SEA
$469
9/14Sat
3 stopsUnited Airlines
16h 14mHLN-SEA
$478

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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.
5/12Sun
nonstopAlaska Airlines
1h 45mHLN-SEA
5/14Tue
nonstopAlaska Airlines
1h 36mSEA-HLN
$767
5/12Sun
multi-stopDelta
7h 30mHLN-SEA
5/14Tue
multi-stopDelta
6h 13mSEA-HLN
$786
5/12Sun
multi-stopUnited Airlines
24h 23mHLN-SEA
5/14Tue
multi-stopUnited Airlines
5h 46mSEA-HLN
$1,125
5/12Sun
multi-stopUnited Airlines
24h 23mHLN-SEA
5/14Tue
multi-stopUnited Airlines
27h 24mSEA-HLN
$1,269

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Helena - Seattle Flights

Departure:

Helena (undefined)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Helena

Cabin classes:

$2,055
$366
$117