Cheap flights from Helena to Seattle (HLN - SEA)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Helena to Seattle/Tacoma Intl are usually found in August or April, booked 60 days in advance, depart on a Monday or Thursday and return on a Tuesday

How to find the cheapest flight from
Helena (HLN) to Seattle (SEA)

All the information you need to plan the best HLN to SEA flight in 2021: compare Helena to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
HLN - SEA
Price
$149 - $308
SEA
Temperature
41 - 66.2 °F
SEA
Precipitation
0.7 - 6.6 inches

Popular in

January

High demand for flights, 21% potential price rise

Cheapest in

August

Best time to find cheap flights, 39% potential price drop

Average price

$237

Average for round-trip flights in setiembre 2021

Round-trip from

$149

From Helena to Seattle/Tacoma Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Helena to Seattle?

Monday flights are generally found to be more expensive for flights from Helena to Seattle. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

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

To save on the cost of your flight from Helena to Seattle, book at least 61 days before your planned departure. Booking around this time can save you about 194% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $440 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $774.

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

August can be a great time to fly to Seattle from Helena with a flight ticket averaging about $244. Cheapflights users have found deals in the month of August for as cheap as $131. The most expensive prices can be found in the month of January.

When is the cheapest time to fly from Helena to Seattle (HLN - SEA)?

A simple way to save on the total cost of your ticket is to fly from Helena to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight at noon.

Cheap flights from Helena to Seattle in September, October 2021

The best prices found for HLN to SEA flights for September, October
19 Oct - 21 Oct
$227pp
HLN
Helena
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
HLN
Helena
19 Oct - 21 Oct
$234pp
HLN
Helena
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
HLN
Helena
19 Oct - 21 Oct
$236pp
HLN
Helena
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
HLN
Helena

Helena to Seattle 2021 flight deals

Cheap flights to Seattle from Helena found for this year
19 Oct - 21 Oct
$227pp
HLN
Helena
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
HLN
Helena
19 Oct - 21 Oct
$234pp
HLN
Helena
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
   
2 STOPS
HLN
Helena
19 Oct - 21 Oct
$236pp
HLN
Helena
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
HLN
Helena

Non-stop flights to Seattle from Helena

Save time with Helena to Seattle direct flight deals
19 Oct - 21 Oct
$227pp
HLN
Helena
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
HLN
Helena
8 Oct - 11 Oct
$237pp
HLN
Helena
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
HLN
Helena
22 Oct - 24 Oct
$258pp
HLN
Helena
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
HLN
Helena

Last minute flights from Helena to Seattle

Late deals on round-trip flights to Seattle from Helena, departing today and this week
6 Oct - 9 Oct
$531pp
HLN
Helena
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
 
1 STOP
HLN
Helena
6 Oct - 9 Oct
$548pp
HLN
Helena
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
 
1 STOP
HLN
Helena
2 Oct - 6 Oct
$557pp
HLN
Helena
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
HLN
Helena

One-way flights to Seattle/Tacoma Intl from Helena

The cheapest one-way flights from Helena to Seattle
8:23 am - 11:39 am
Delta
1 Stop
4h 16m
HLN - SEA
Delta
$179
Delta
11:03 am - 12:00 pm
Alaska Airlines
Nonstop
1h 57m
HLN - SEA
Alaska Airlines
$299
Alaska Airlines
2:55 am - 6:18 pm
United Airlines
2 Stops
16h 23m
HLN - SEA
United Airlines
$463
United

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Helena</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Helena to Seattle

What airports do I use to fly from Helena to Seattle?

If you wish to fly to Seattle from Helena, then you need to book flights from Helena to Seattle/Tacoma Intl. There are 2 flights from Helena (HLN) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from Helena are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 1h 52m is how long a nonstop flight from Helena to Seattle/Tacoma Intl typically takes.

Which airlines flying from Helena to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from Helena to Seattle/Tacoma Intl have new flexible policies in place due to COVID-19. Alaska Airlines, Delta, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Alaska Airlines with this kind of flexibility.

Are flight prices decreasing from Helena to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Helena and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Helena to Seattle for under $300 on Cheapflights?

Yes, there are multiple flights from Helena to Seattle for under $300. The cheapest flight booked recently is on Alaska Airlines for just $227, but on average you can expect to pay $298.

Are there nonstop flights from Helena to Seattle for under $300 on Cheapflights?

Cheapflights has at least 8 direct flights from Helena to Seattle under $300. A good price for a nonstop flight from Helena to Seattle is less than $376.

Are there last-minute flights available from Helena to Seattle for under $600?

There are currently 17+ open flights from Helena to Seattle within the next 7 days for less than $600.

What days are nonstop flights available from Helena to Seattle?

Nonstop flights can be found on the following days: Monday, Tuesday.

How many flights depart from Helena to Seattle on average per day?

2 flight departures from Helena to Seattle per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures

How long is the flight from Helena to Seattle?

For as low as $227, Alaska Airlines can have you in Seattle from Helena in 1h 59m. The distance from Helena to Seattle is about 492 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Helena to Seattle round-trip?

Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $227. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $234 and $363, respectively. Users have found that Alaska Airlines is 6% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Helena to Seattle one-way?

For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $109. Users have also found prices from $118 and $187 on Delta and United Airlines, respectively.

What are the most reliable airlines from Helena to Seattle?

Before booking your flight to Seattle from Helena, check out the most reliable airlines to get you to your destination on time: Qatar Airways (89%), Alaska Airlines (86%), Horizon Air( 86%).

What are the cheapest flights from Helena to Seattle?

On average you can expect to pay $369 for a flight from Helena to Seattle. The cheapest flight overall is $109 while the most popular route, (Helena - Seattle/Tacoma Intl) is currently priced at $234.

What are the most popular airlines that fly from Helena to Seattle?

Before booking your flight from Helena to Seattle check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Helena?

Information is based on travel restrictions for travel to Seattle/Tacoma Intl within the United States

Most visitors from Helena need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Helena must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Helena are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Helena from Seattle?

Returning to Helena from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Helena.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Helena.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for Helena to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Helena to Seattle.
Flight duration from HLN to SEA
1h 53m
Average temperature for September in Seattle
73.4 °F
Avg rainfall for September in Seattle
1.0 ″

Airports servicing Helena

Airports servicing Seattle

Hourly flight availability from Helena to Seattle

See what time of day planes typically take off from Helena towards Seattle.
Afternoon Noon to 6 PM 100% of HLN to SEA departures
Early morning Midnight to 6 AM 0% of HLN to SEA departures
Morning 6 AM to noon 0% of HLN to SEA departures
Evening 6 PM to midnight 0% of HLN to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Helena to Seattle
See how many times per day planes take to the skies headed from Helena to Seattle.
Sunday
3 daily flights
Monday
3 daily flights
Tuesday
2 daily flights
Wednesday
2 daily flights
Thursday
3 daily flights
Friday
3 daily flights
Saturday
3 daily flights
Home North America USA Washington Seattle Cheap flights from Helena to Seattle