Find flights
Deals
Insights
When to book
User Tips
FAQs & Tips
Direct Flights
Airlines

HLN - SEA

$228 Find Cheap Flights from Helena to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to Seattle departing on 2/5. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals from Helena to Seattle/Tacoma Intl (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/Tacoma Intl 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.

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:41 pm - 5:32 pmHLN-SEA
1h 51mnonstop
1:29 pm - 4:04 pmSEA-HLN
1h 35mnonstop
$228Alaska Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
4:19 pm - 5:00 pmHLN-SEA
1h 41mnonstop
1:10 pm - 3:42 pmSEA-HLN
1h 32mnonstop
$238Alaska Airlines
Find Deal
Sat, Mar 1 - Wed, Mar 5
1:30 pm - 6:46 pmHLN-SEA
6h 16m1 stop
5:30 am - 12:50 pmSEA-HLN
6h 20m1 stop
$247Delta
Find Deal
Wed, Feb 5 - Wed, Feb 12
5:45 am - 12:25 pmHLN-SEA
7h 40m1 stop
5:30 am - 12:35 pmSEA-HLN
6h 05m1 stop
$257Delta
Find Deal
Mon, Mar 24 - Mon, Mar 31
2:05 pm - 9:05 pmHLN-SEA
8h 00m1 stop
5:02 am - 1:25 pmSEA-HLN
7h 23m1 stop
$287United Airlines
Find Deal
Sat, Mar 1 - Wed, Mar 5
5:54 am - 12:25 pmHLN-SEA
7h 31m1 stop
5:30 am - 12:50 pmSEA-HLN
6h 20m1 stop
$317Delta
Find Deal
Thu, Feb 20 - Thu, Feb 27
4:19 pm - 5:00 pmHLN-SEA
1h 41mnonstop
1:06 pm - 3:39 pmSEA-HLN
1h 33mnonstop
$343Alaska Airlines
Find Deal
Mon, Mar 24 - Mon, Mar 31
4:19 pm - 5:00 pmHLN-SEA
1h 41mnonstop
1:06 pm - 3:39 pmSEA-HLN
1h 33mnonstop
$358Alaska Airlines
Find Deal
Fri, Apr 18 - Mon, Apr 21
2:05 pm - 9:05 pmHLN-SEA
8h 00m1 stop
12:37 pm - 1:40 pmSEA-HLN
24h 03m2 stops
$395United Airlines
Find Deal
Sat, Mar 1 - Wed, Mar 5
2:05 pm - 9:05 pmHLN-SEA
8h 00m1 stop
9:20 am - 1:40 pmSEA-HLN
27h 20m3 stops
$420United Airlines
Find Deal
Sat, Mar 1 - Wed, Mar 5

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 round-trip flights from Helena to Seattle clicked on KAYAK for each day over the last 12 months.
For Helena to Seattle, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Helena, the best deals are generally found on Tuesday, with Monday being 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 round-trip 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 $148 (return) on average. On the other hand, the most expensive months are November and July, where the average cost of round-trip tickets is $488 and $318 respectively.

Can I save money by flying with a layover from Helena to Seattle?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of $454, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.
To get a below average price on the flight from Helena to Seattle, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

January

High season

August

Cheapest flight

$228
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 11% lower on average.
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.

Flights from Helena to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Helena to Seattle 
Learn how KAYAK collects reviews and tips from users.
Verified travelerFlew with Alaska AirlinesHLN-SEADec 2024
Boarding from Helena is effortless and a quick process.
WarrenFlew with Alaska AirlinesHLN-SEAJul 2024
Spring for first class if you can afford it.

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 $228 for a round-trip ticket.

  • 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?

    Alaska Airlines, and American Airlines offer 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 SkyTeam 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 $251 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 $496 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 $234 or less one-way and $338 or less round-trip.

Prefer to fly direct from Helena to Seattle?

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

Direct departures

Helena to Seattle/Tacoma Intl

Monday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Tuesday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Wednesday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Thursday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Friday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Saturday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Sunday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Helena

Monday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Tuesday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Wednesday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Thursday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Friday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Saturday

Alaska Airlines, Hawaiian Airlines, Korean Air

Alaska Airlines, Hawaiian Airlines, +1 more

Sunday

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

Alaska Airlines, Hawaiian Airlines, +2 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 9699 reviews
8.5Crew
8.2Boarding
7.1Entertainment
7.9Comfort
7.1Food
Airline reviews

Nothing! I just didn't eat or use entertainment. I had three seats all to myself and it was wonderful!!!!

10.0 ExcellentAnonymous, Jan 2025ONT - SEA
Read more Alaska Airlines reviews

Nothing! I just didn't eat or use entertainment. I had three seats all to myself and it was wonderful!!!!

The kiosk for check in/bag check in. I liked the older version where you did everything on the kiosk (check in and bag tags). This time I needed to use my phone to check in and then scan the ticket from my phone to complete the bag tags. I didn't care for this new method. The older method was simpler.

Weather caused delays, but since I was in no hurry I asked to reschedule for any other day to make room for anyone in need of keeping their schedule. Alaska accommodated my request with an extra bonus - with a credit to my account for another day…. Always had great experience with the Alaska folks.

Overall it was a good flight. No issues. Alaska Airlines is always my first choice.

On time (in fact, early). Easy boarding and getting off.

they took my carryon at the gate for free. Everything went smoothly.

It was delayed twice and they still want $8 for wifi so i had to sit for an hour.

I rated the food and entertainment as poor due to the fact the flights were short in duration and no food serves or entertainment provided.

It was awful. We experienced turbulence for nearly the whole flight. Then when I picked up my luggage, two of the wheels were torn off. Worst flight ever!!

I like the short flight to Seattle and San Francisco. The boarding was fairly easy and the flight was as to be expected. The in-flight entertainment could be improved with wifi options. Paying $8 and then losing internet access and being told that flight attendants didn't want to serve beverages and snacks on board was disappointing because they didn't want to move a cart up and down the aisle blaming it on air turbulence which wasn't a problem.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

Everything you need to know for your flight from Helena to Seattle

Information on your arrival and departure airports

Seattle (SEA)
Helena (HLN)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.