Cheap flights from Helena to Seattle from $119
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Seattle departing on 8/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Helena to Seattle
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Alaska Airlines flights from Helena to Seattle
Our best Alaska Airlines deals on Helena to Seattle flight tickets
Hawaiian Airlines flights from Helena to Seattle
Our best Hawaiian Airlines deals on Helena to Seattle flight tickets
See travel insights to Seattle from
How to get the cheapest flight ticket from Helena to Seattle
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
What is the cheapest month to fly to Seattle?
In general, January is the cheapest month to fly from Helena to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $197. If you don’t want to visit Seattle in January, then you should wait until February to fly from Helena, when ticket prices are also cheap, with an average price of $227.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Helena is on a Thursday. momondo users have found tickets for Thursday departures for as low as $405. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Helena because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $565.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Helena in the evening is the least expensive time of day to depart. momondo users have found prices as low as $273 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $486. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Helena to Seattle/Tacoma Intl flight route?
Fly from Helena to Seattle/Tacoma Intl for the best Helena - Seattle/Tacoma Intl flight prices
What cabin class options are available on Helena to Seattle/Tacoma Intl flights?
There are 3 cabin classes available to choose from on Helena to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How have Helena to Seattle flight prices changed over time?
What is the cheapest airline that flies from Helena to Seattle/Tacoma Intl?
Hawaiian Airlines, Delta, and United Airlines are the most popular carriers operating from Helena to Seattle/Tacoma Intl
What airlines fly to Seattle?
Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Helena according to our data. Alaska Airlines is the first choice among our users, with 94% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Helena to Seattle on average per day?
As of April 2025, 2 flights take off from Helena and land in Seattle each day. The most common flight departure time for this route is 4:00PM, with 100% of daily flights taking off in the afternoon.
How many flights depart from Helena to Seattle on average per week?
As of April 2025, there are 16 flights per week flying from Helena to Seattle. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.
When to book flights from Helena to Seattle
Cheap Helena to Seattle (HLN to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Helena to Seattle
Best Price Found | $119 |
|---|---|
Fastest flight time | 1h 44m |
Direct flights | Mon, Tue, Wed, Thu, Fri and Sat |
Airports in Seattle | 1 airport |
How far is Helena to Seattle/Tacoma Intl by plane?
A flight from Helena to Seattle/Tacoma Intl will travel around 489.0 mi. Flights usually cover this in 1h 44m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Helena Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Helena Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Helena Airport to Seattle/Tacoma Intl Airport?
As of April 2025, there are 2 operators available to choose from for flights from Helena Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Helena Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Helena to Seattle?
Based on momondo bookings for flights between Helena and Seattle, the leading plane model is Embraer 175, making up 46.00% of the total bookings. Other popular models include Boeing 737-800 with 18.00%, Embraer 175 (Enhanced Winglets) with 6.00%, and Boeing 737-900 Passenger/BBJ3 (winglets) with 6.00%.
What is the most popular airline from Helena to Seattle?
momondo data reveals that the most frequently booked airline on the route from Helena to Seattle is Alaska Airlines, representing 86% of all bookings. The subsequent popular airline is Delta at 14%.
Best airlines flying from Helena to Seattle
Compare and see reviews for airlines that fly from Helena to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $176 | Free Cancellation | Rating 8.0 9,882 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 8.0 7,917 reviews |
Alaska Airlines Flights From Helena to Seattle
Alaska Airlines flies from Helena to Seattle around 4 times per week, with 9,887 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Helena to Seattle in the last 72 hours was $176 (round-trip), much lower than the average airfare cost of $263 for Alaska Airlines flights on this route.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Helena to Seattle?
It is quick and easy to find Helena to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.
Can I find flights from Helena to Seattle with flexible booking policies on momondo?
All flight searches from Helena to Seattle on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Helena to Seattle?
momondo helps you find the best flight between Helena and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Helena to Seattle right now. Can momondo alert me if prices change?
Price alerts on flights to Seattle from Helena are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.