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Cheap flights from St. Louis to Helena (STL - HLN) from $448

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 6/19. 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
May 8 — May 151
From?
To?
Wed 5/8
Wed 5/15
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 May 3, 2024.

Popular in

June

Cheapest in

November

Average price

$571

Round-trip from

$332
High demand for flights, 33% potential price rise
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Best time to find cheap flights, 35% potential price drop
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Average for round-trip flights in May 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 Tuesday 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 June. Prices are generally better when you fly from St. Louis to Helena in November, with the cheapest ticket starting at $445.

When is the cheapest time to fly from St. Louis to Helena (STL - HLN)?

It’s typically best to fly out from St. Louis to Helena at noon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Delta flights from St. Louis to Helena

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Helena. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Peruse some of the lowest-priced Delta flights we've found from St. Louis to Helena. Make sure to check back often as deals are often changing.
Wed 6/197:55 amSTL - HLN
1 stop5h 44mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$448
Sun 6/1611:25 amSTL - HLN
2 stops12h 20mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$453
Sun 6/1611:25 amSTL - HLN
2 stops12h 20mDelta
Tue 7/21:20 pmHLN - STL
2 stops9h 01mDelta
Deal found 5/3$458
Wed 6/196:06 amSTL - HLN
2 stops7h 33mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$478
Wed 6/196:06 amSTL - HLN
2 stops7h 33mDelta
Wed 7/31:20 pmHLN - STL
2 stops9h 10mDelta
Deal found 5/3$483
Tue 6/186:25 pmSTL - HLN
1 stop5h 20mDelta
Fri 7/56:00 amHLN - STL
2 stops7h 33mDelta
Deal found 5/3$548
Tue 6/183:23 pmSTL - HLN
2 stops8h 22mDelta
Wed 7/31:20 pmHLN - STL
2 stops9h 10mDelta
Deal found 5/3$553
Wed 6/196:06 amSTL - HLN
2 stops7h 33mDelta
Fri 7/56:00 amHLN - STL
2 stops7h 33mDelta
Deal found 5/3$568
Sat 6/156:05 amSTL - HLN
2 stops17h 40mDelta
Wed 7/31:20 pmHLN - STL
2 stops9h 10mDelta
Deal found 5/3$588

Cheap United Airlines flights from St. Louis to Helena

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Helena. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from St. Louis to Helena. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Tue 7/26:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$502
Tue 6/181:42 pmSTL - HLN
1 stop8h 44mUnited Airlines
Tue 7/26:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$511
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Thu 7/46:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$522
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Wed 7/32:30 pmHLN - STL
2 stops20h 47mUnited Airlines
Deal found 5/3$527
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Fri 7/52:30 pmHLN - STL
1 stop6h 41mUnited Airlines
Deal found 5/3$528
Tue 6/181:42 pmSTL - HLN
1 stop8h 44mUnited Airlines
Thu 7/46:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$531
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Thu 7/42:30 pmHLN - STL
2 stops22h 48mUnited Airlines
Deal found 5/3$532
Tue 6/181:42 pmSTL - HLN
1 stop8h 44mUnited Airlines
Fri 7/52:30 pmHLN - STL
1 stop6h 41mUnited Airlines
Deal found 5/3$537
Tue 6/181:42 pmSTL - HLN
1 stop8h 44mUnited Airlines
Thu 7/42:30 pmHLN - STL
2 stops22h 48mUnited Airlines
Deal found 5/3$541

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

Find cheap flight options from St. Louis to Helena specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Prices were last updated on May 3, 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.
Wed 6/197:55 amSTL - HLN
1 stop5h 44mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$448
Sun 6/1611:25 amSTL - HLN
2 stops12h 20mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$453
Sun 6/1611:25 amSTL - HLN
2 stops12h 20mDelta
Tue 7/21:20 pmHLN - STL
2 stops9h 01mDelta
Deal found 5/3$458
Wed 6/196:06 amSTL - HLN
2 stops7h 33mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$478
Wed 6/196:06 amSTL - HLN
2 stops7h 33mDelta
Tue 7/21:20 pmHLN - STL
2 stops9h 01mDelta
Deal found 5/3$483
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Tue 7/26:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$502
Tue 6/181:42 pmSTL - HLN
1 stop8h 44mUnited Airlines
Tue 7/26:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$511
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Thu 7/46:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$522
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Wed 7/32:30 pmHLN - STL
2 stops20h 47mUnited Airlines
Deal found 5/3$527

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 2,864,334 searches. Data last updated May 3, 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.
Wed 6/197:55 amSTL - HLN
1 stop5h 44mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$448
Sun 6/1611:25 amSTL - HLN
2 stops12h 20mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$453
Sun 6/1611:25 amSTL - HLN
2 stops12h 20mDelta
Tue 7/21:20 pmHLN - STL
2 stops9h 01mDelta
Deal found 5/3$458
Wed 6/196:06 amSTL - HLN
2 stops7h 33mDelta
Thu 7/41:20 pmHLN - STL
1 stop7h 17mDelta
Deal found 5/3$478
Wed 6/196:06 amSTL - HLN
2 stops7h 33mDelta
Wed 7/31:20 pmHLN - STL
2 stops9h 10mDelta
Deal found 5/3$483
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Tue 7/26:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$502
Tue 6/181:42 pmSTL - HLN
1 stop8h 44mUnited Airlines
Tue 7/26:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$511
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Thu 7/46:45 amHLN - STL
1 stop14h 26mUnited Airlines
Deal found 5/3$522
Sat 6/154:45 pmSTL - HLN
1 stop5h 41mUnited Airlines
Wed 7/32:30 pmHLN - STL
2 stops20h 47mUnited Airlines
Deal found 5/3$527

St. Louis to Helena flights leaving soon

Find last-minute flight options from St. Louis to Helena for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to Helena. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 5/88:47 amSTL - HLN
1 stop13h 24mUnited Airlines
Tue 5/146:50 amHLN - STL
1 stop13h 19mUnited Airlines
Deal found 5/2$810
Wed 5/88:05 amSTL - HLN
2 stops14h 06mUnited Airlines
Tue 5/146:50 amHLN - STL
1 stop13h 19mUnited Airlines
Deal found 5/2$815
Wed 5/88:05 amSTL - HLN
2 stops14h 06mUnited Airlines
Tue 5/142:20 pmHLN - STL
2 stops23h 03mUnited Airlines
Deal found 5/2$820
Wed 5/85:25 pmSTL - HLN
3 stops45h 01mUnited Airlines
Tue 5/142:20 pmHLN - STL
2 stops23h 03mUnited Airlines
Deal found 5/2$891

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 2,864,334 searches. Data last updated May 3, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$448 - $565

Route

Depart

Return

Price

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Wed 6/19

1 stop5h 44m

Helena

Thu 7/4

1 stop7h 17m

$448

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sun 6/16

2 stops12h 20m

Helena

Thu 7/4

1 stop7h 17m

$453

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sun 6/16

2 stops12h 20m

Helena

Wed 7/3

2 stops9h 10m

$458

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Wed 6/19

2 stops7h 33m

Helena

Thu 7/4

1 stop7h 17m

$478

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sat 6/15

1 stop5h 41m

Helena

Tue 7/2

1 stop14h 26m

$502

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Tue 6/18

1 stop8h 44m

Helena

Tue 7/2

1 stop14h 26m

$511

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sat 6/15

1 stop5h 41m

Helena

Thu 7/4

1 stop14h 26m

$522

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sat 6/15

1 stop9h 09m

Helena

Mon 7/8

1 stop29h 20m

$540

Lambert-St LouisHelena

STL - HLN

STLHLN

Lambert-St Louis

Sat 6/15

1 stop9h 09m

Helena

Sat 7/6

1 stop10h 32m

$565

Flights are sorted by cheapest first

Deals found on 5/3

When is the cheapest time 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 April 28, 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

Average price of flights to Helena by month

Plan your trip from St. Louis to Helena by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Helena is currently $0 while a round-trip flight costs $497. Price data was last updated on April 28, 2024.

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 June is currently the most expensive (average of $678). 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.

January

$398

February

$332

March

$484

April

$427

May

$557

June

$678

July

$651

August

$483

September

$496

October

$395

November

$466

December

$411

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

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 May 3, 2024.
To help decide which airline to fly from St. Louis to Helena, see what other customers have to say about Delta, United Airlines 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
9,128 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,128 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,848 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,134 reviews
Alaska Airlines
8.1
Very good
9,128 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

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 $500 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Helena for under $500. The cheapest flight booked recently is on Delta for just $448, but on average you can expect to pay $519.

  • Are there last-minute flights available from St. Louis to Helena for under $900?

    There are currently 4+ open flights from St. Louis to Helena within the next 7 days for less than $900.

  • 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 $448. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $502 and $540, respectively. Users have found that Delta is 37% 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 5/3.

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 2,864,334 searches. Data last updated May 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$377Average$543FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$437Average$616FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Helena?

When you search for this flight from St. Louis to Helena, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Helena?

Cheapflights helps you find that perfect flight to Helena from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to Helena with no change fees?

Yes, we can. To see specific flights from St. Louis to Helena with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. Louis to Helena become cheaper?

Not ready to book yet? You can track prices for flights from St. Louis to Helena on Cheapflights with our Price Alert feature and get notified when better prices are available.

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