Cheap flights from St. Louis to Helena (STL - HLN) from $518

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 8/3. 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.
STL — HLN
Jun 25 — Jul 21

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 June 20, 2024.

Popular in

March

Cheapest in

April

Average price

$688

Round-trip from

$332
High demand for flights, 44% potential price rise
Best time to find cheap flights, 58% potential price drop
Average for round-trip flights in June 2024
From Lambert-St Louis to Helena

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 Monday 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 at noon. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

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

Find cheap flight options from St. Louis to Helena specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,256,981 searches. Prices were last updated on June 20, 2024.
Mon 6/247:32 pmSTL - HLN
1 stop20h 33mAlaska Airlines
Thu 6/277:00 amHLN - STL
1 stop10h 32mAlaska Airlines
Deal found 6/19$978
Mon 6/249:44 amSTL - HLN
2 stops15h 15mAlaska Airlines
Thu 6/277:00 amHLN - STL
1 stop10h 32mAlaska Airlines
Deal found 6/19$1,073
Mon 6/249:44 amSTL - HLN
2 stops15h 15mAlaska Airlines
Thu 6/277:00 amHLN - STL
2 stops14h 58mAlaska Airlines
Deal found 6/19$1,078

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 3,256,981 searches. Data last updated June 20, 2024.
Sat 8/35:52 pmSTL - HLN
1 stop5h 40mDelta
Sat 8/101:11 pmHLN - STL
2 stops9h 18mDelta
Deal found 6/18$518
Sat 8/310:09 amSTL - HLN
2 stops13h 23mDelta
Sat 8/101:11 pmHLN - STL
2 stops9h 18mDelta
Deal found 6/18$523
Sat 8/35:52 pmSTL - HLN
1 stop5h 40mDelta
Sat 8/106:00 amHLN - STL
1 stop7h 38mDelta
Deal found 6/18$568
Mon 6/247:32 pmSTL - HLN
1 stop20h 33mAlaska Airlines
Thu 6/277:00 amHLN - STL
1 stop10h 32mAlaska Airlines
Deal found 6/19$978
Mon 6/249:44 amSTL - HLN
2 stops15h 15mAlaska Airlines
Thu 6/277:00 amHLN - STL
1 stop10h 32mAlaska Airlines
Deal found 6/19$1,073
Mon 6/249:44 amSTL - HLN
2 stops15h 15mAlaska Airlines
Thu 6/277:00 amHLN - STL
2 stops14h 58mAlaska Airlines
Deal found 6/19$1,078

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 3,256,981 searches. Data last updated June 20, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$518 - $568

Route

Depart

Return

Price

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sat 8/3

1 stop5h 40m

Helena

Sat 8/10

2 stops9h 18m

$518

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sat 8/3

2 stops13h 23m

Helena

Sat 8/10

2 stops9h 18m

$523

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sat 8/3

1 stop5h 40m

Helena

Sat 8/10

1 stop7h 38m

$568

Flights are sorted by cheapest first

Deals found on 6/18

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 June 16, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Helena flight should consider departing on Monday afternoons 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 June 20, 2024.
8.0
Very good
10,000 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.0
Very good
10,000 reviews
8.0
Very good
10,000 reviews

Entertainment

8.0

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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 $600 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Helena for under $600. The cheapest flight booked recently is on Delta for just $518, but on average you can expect to pay $536.

  • What is the cheapest airline to fly from St. Louis to Helena round-trip?

    Flying on Delta is currently your cheapest option to Helena, with prices starting at $518. Users have found that Delta is 21% 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 6/19.

  • 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 $332). Flying from St. Louis to Helena in July is currently the most expensive (average of $606). 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.

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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 3,256,981 searches. Data last updated June 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$377Average$578FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$437Average$633FlexibilityNo cancel feeOn-time69%

Search flights from St. Louis to Helena by cabin class

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