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$353+ Cheap flights from St. Louis to Helena (STL - HLN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HLN
jul. 30 — ago. 61
From?
To?
mar. 7/30
mar. 8/6
1 adult, Economy
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Cheap flight deals from St. Louis to Helena

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 25, 2024.

Popular in

March

Cheapest in

April

Average price

$885

Round-trip from

$353
(Delta)
High demand for flights, 45% potential price rise
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Best time to find cheap flights, 57% potential price drop
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Average for round-trip flights in July 2024
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From Lambert-St Louis to Helena
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What is the cheapest day to fly round-trip from St. Louis to Helena?

Users have found that flying from St. Louis to Helena on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from St. Louis to Helena?

Flights from St. Louis to Helena lean towards being more expensive in March. Prices are generally better when you fly from St. Louis to Helena in April, with the cheapest ticket starting at $278.

What is the cheapest time of day to fly from STL to HLN?

It’s typically best to fly out from St. Louis to Helena in the morning. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.

Cheap St. Louis to Helena flights in July & August 2024

Find cheap flight options from St. Louis to Helena specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on julio 25, 2024.
These are some of the best deals we've found on flights to Helena in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/247:55 amSTL - HLN
1 stop5h 36mDelta
vie. 8/301:11 pmHLN - STL
2 stops9h 18mDelta
Deal found 7/24$353
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/246:06 amSTL - HLN
2 stops7h 25mDelta
vie. 8/301:11 pmHLN - STL
2 stops9h 18mDelta
Deal found 7/24$358
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/242:34 pmSTL - HLN
1 stop25h 27mAlaska Airlines
vie. 8/303:44 pmHLN - STL
1 stop7h 15mAlaska Airlines
Deal found 7/24$456
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/244:51 pmSTL - HLN
1 stop5h 29mUnited Airlines
vie. 8/302:26 pmHLN - STL
1 stop6h 02mUnited Airlines
Deal found 7/24$463
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/71:45 pmSTL - HLN
1 stop8h 33mUnited Airlines
mié. 8/142:30 pmHLN - STL
1 stop6h 41mUnited Airlines
Deal found 7/24$522
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/75:00 amSTL - HLN
2 stops19h 59mAlaska Airlines
mié. 8/143:42 pmHLN - STL
1 stop7h 17mAlaska Airlines
Deal found 7/24$701
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/79:49 amSTL - HLN
2 stops15h 10mAlaska Airlines
mié. 8/147:00 amHLN - STL
2 stops14h 42mAlaska Airlines
Deal found 7/24$833

St. Louis to Helena 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Helena in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.
These are some of the best deals we've found on flights to Helena in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/247:55 amSTL - HLN
1 stop5h 36mDelta
vie. 8/301:11 pmHLN - STL
2 stops9h 18mDelta
Deal found 7/24$353
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/246:06 amSTL - HLN
2 stops7h 25mDelta
vie. 8/301:11 pmHLN - STL
2 stops9h 18mDelta
Deal found 7/24$358
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/37:00 amSTL - HLN
1 stop9h 31mAlaska Airlines
lun. 10/74:10 pmHLN - STL
1 stop6h 48mAlaska Airlines
Deal found 7/25$388
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/242:34 pmSTL - HLN
1 stop25h 27mAlaska Airlines
vie. 8/303:44 pmHLN - STL
1 stop7h 15mAlaska Airlines
Deal found 7/24$456
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/244:51 pmSTL - HLN
1 stop5h 29mUnited Airlines
vie. 8/302:26 pmHLN - STL
1 stop6h 02mUnited Airlines
Deal found 7/24$463
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/37:00 amSTL - HLN
1 stop6h 30mDelta
lun. 10/71:04 pmHLN - STL
2 stops9h 31mDelta
Deal found 7/25$518
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/71:45 pmSTL - HLN
1 stop8h 33mUnited Airlines
mié. 8/142:30 pmHLN - STL
1 stop6h 41mUnited Airlines
Deal found 7/24$522
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/39:39 amSTL - HLN
2 stops30h 54mAlaska Airlines
lun. 10/74:10 pmHLN - STL
2 stops29h 43mAlaska Airlines
Deal found 7/25$633
This United deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/36:15 amSTL - HLN
3 stops40h 00mUnited Airlines
lun. 10/72:25 pmHLN - STL
2 stops20h 57mUnited Airlines
Deal found 7/25$684

Find flights from St. Louis to Helena within your budget

Customize your flight search to find flights from St. Louis to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$353 - $684

Route

Depart

Return

Price

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

sáb. 8/24

1 stop5h 36m

Helena

vie. 8/30

2 stops9h 18m

$353

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

sáb. 8/24

2 stops13h 23m

Helena

vie. 8/30

2 stops9h 18m

$358

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

jue. 10/3

1 stop9h 31m

Helena

lun. 10/7

1 stop6h 48m

$388

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

sáb. 8/24

1 stop25h 27m

Helena

vie. 8/30

1 stop7h 15m

$456

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

sáb. 8/24

1 stop5h 29m

Helena

vie. 8/30

1 stop6h 02m

$463

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

jue. 10/3

1 stop6h 30m

Helena

lun. 10/7

2 stops9h 31m

$518

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

mié. 8/7

1 stop8h 33m

Helena

mié. 8/14

1 stop6h 41m

$522

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

jue. 10/3

2 stops30h 54m

Helena

lun. 10/7

2 stops29h 43m

$633

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

jue. 10/3

3 stops40h 00m

Helena

lun. 10/7

2 stops20h 57m

$684

Flights are sorted by cheapest first

Deals found on 7/24

What is the cheapest day to fly from St. Louis to Helena?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Helena. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Helena flight should consider departing on Saturday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Helena by month

Plan your trip to Helena by taking into account the average temperature and rainfall totals by month.

HLN

Temperature

21.2 - 69.8 °F

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated julio 25, 2024.
To help decide which airline to fly from St. Louis to Helena, see what other customers have to say about United Airlines, Delta and Alaska Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Entertainment

7.2

Crew

8.6

Food

7.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Alaska Airlines
8.1
Very good
9,365 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Entertainment

7.2

Crew

8.6

Food

7.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Delta
8.0
Very good
9,630 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Entertainment

7.2

Crew

8.6

Food

7.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Entertainment

7.2

Crew

8.6

Food

7.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Helena for under $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Helena for under $400. The cheapest flight booked recently is on Delta for just $353, but on average you can expect to pay $537.

  • What are the cheapest airlines flying from St. Louis to Helena round-trip?

    Flying on Delta is currently your cheapest option to Helena, with prices starting at $353. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $388 and $463, respectively. Users have found that Delta is 45% cheaper than the other options available to this destination.

  • What does STL to HLN mean?

    This is defined as Lambert-St Louis Airport (STL) and Helena Airport (HLN). Codes like Helena Airport are often used to just call airports uniquely.

  • Can I find deals for flights from St. Louis to Helena that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Helena flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Helena with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Helena flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Helena that include hotel bookings?

    Yes. In addition to deals on St. Louis to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Helena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Helena.

  • Can I find deals for business class flights from St. Louis to Helena?

    Yes. Cheapflights offers flight deals from St. Louis to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Helena that allow pets onboard?

    Many airlines flying from St. Louis to Helena offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Helena?

    Yes, you can often find last-minute deals on St. Louis to Helena flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Helena flight deals updated?

    The St. Louis to Helena flight deals you see on this page were last updated on 7/25.

  • What is the cheapest month to book a flight from St. Louis to Helena?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Helena (average of $322). Flying from St. Louis to Helena in July is currently the most expensive (average of $627). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from St. Louis to Helena

Discover the top 2 airlines that operate flights from St. Louis to Helena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated julio 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$377Average$542FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$437Average$603FlexibilityNo cancel feeOn-time69%
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Search flights from St. Louis to Helena by cabin class

Find flights from St. Louis to Helena, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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