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Cheap flights from Helena to St. Louis (HLN - STL) from $438

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. Click the price to replicate the search for this deal.
HLN — STL
May 1 — May 81
From?
To?
Wed 5/1
Wed 5/8
1 adult, Economy
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Cheap flight deals from Helena to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to St. Louis (STL). 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 April 26, 2024.

Round-trip from

$323
From Helena to Lambert-St Louis
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What is the cheapest day to fly round-trip from Helena to St. Louis?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

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

It’s typically best to fly out from Helena to St. Louis in the afternoon. Doing so could potentially save you 40% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Delta flights from Helena to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Helena and St. Louis. 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 3,068,117 searches. Data last updated April 26, 2024.
Sat 8/241:10 pmHLN - STL
1 stop7h 26mDelta
Tue 8/277:30 amSTL - HLN
1 stop6h 00mDelta
Deal found 4/25$438
Sat 8/245:55 amHLN - STL
1 stop6h 30mDelta
Tue 8/2711:51 amSTL - HLN
2 stops11h 39mDelta
Deal found 4/25$443
Sat 8/241:10 pmHLN - STL
2 stops9h 29mDelta
Tue 8/2711:51 amSTL - HLN
2 stops11h 39mDelta
Deal found 4/25$478
Fri 6/216:00 amHLN - STL
2 stops11h 01mDelta
Tue 6/256:20 pmSTL - HLN
1 stop5h 25mDelta
Deal found 4/25$543
Fri 6/216:00 amHLN - STL
2 stops11h 01mDelta
Tue 6/252:16 pmSTL - HLN
2 stops9h 29mDelta
Deal found 4/25$548
Fri 6/216:00 amHLN - STL
1 stop6h 35mDelta
Tue 6/256:20 pmSTL - HLN
1 stop5h 25mDelta
Deal found 4/25$688

Helena to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Helena and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Sat 8/241:10 pmHLN - STL
1 stop7h 26mDelta
Tue 8/277:30 amSTL - HLN
1 stop6h 00mDelta
Deal found 4/25$438
Sat 8/245:55 amHLN - STL
1 stop6h 30mDelta
Tue 8/2711:51 amSTL - HLN
2 stops11h 39mDelta
Deal found 4/25$443
Sat 8/241:10 pmHLN - STL
2 stops9h 29mDelta
Tue 8/2711:51 amSTL - HLN
2 stops11h 39mDelta
Deal found 4/25$478
Sat 8/242:26 pmHLN - STL
2 stops24h 23mUnited Airlines
Tue 8/278:05 amSTL - HLN
2 stops14h 15mUnited Airlines
Deal found 4/24$505
Fri 6/216:00 amHLN - STL
2 stops11h 01mDelta
Tue 6/256:20 pmSTL - HLN
1 stop5h 25mDelta
Deal found 4/25$543
Fri 6/216:00 amHLN - STL
2 stops11h 01mDelta
Tue 6/252:16 pmSTL - HLN
2 stops9h 29mDelta
Deal found 4/25$548
Fri 6/216:00 amHLN - STL
1 stop6h 35mDelta
Tue 6/256:20 pmSTL - HLN
1 stop5h 25mDelta
Deal found 4/25$688

Find flights from Helena to St. Louis within your budget

Customize your flight search to find flights from Helena to St. Louis 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 3,068,117 searches. Data last updated April 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$438 - $688

Route

Depart

Return

Price

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Sat 8/24

1 stop7h 26m

Lambert-St Louis

Tue 8/27

1 stop6h 00m

$438

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Sat 8/24

1 stop6h 30m

Lambert-St Louis

Tue 8/27

2 stops11h 39m

$443

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Sat 8/24

2 stops9h 29m

Lambert-St Louis

Tue 8/27

2 stops11h 39m

$478

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Sat 8/24

2 stops24h 23m

Lambert-St Louis

Tue 8/27

2 stops14h 15m

$505

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Fri 6/21

2 stops11h 01m

Lambert-St Louis

Tue 6/25

1 stop5h 25m

$543

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Fri 6/21

2 stops11h 01m

Lambert-St Louis

Tue 6/25

2 stops9h 29m

$548

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Fri 6/21

1 stop6h 35m

Lambert-St Louis

Tue 6/25

1 stop5h 25m

$688

Flights are sorted by cheapest first

Deals found on 4/25

When is the cheapest time to fly from Helena to St. Louis?

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

Plan your trip from Helena to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Helena to St. Louis is currently $0 while a round-trip flight costs $520. Price data was last updated on April 21, 2024.

Currently, September is the cheapest month in which you can book a flight from Helena to St. Louis (average of $323). Flying from Helena to St. Louis in July is currently the most expensive (average of $378). 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

$326

February

$331

March

$357

April

$337

May

$350

June

$373

July

$378

August

$336

September

$323

October

$323

November

$336

December

$326

Temperature and rainfall in St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated April 26, 2024.
Delta
8.1
Very good
10,966 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
10,966 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,228 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Related info for your journey

Find useful and relevant information for your journey from Helena to St. Louis. 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 Helena to St. Louis for under $500 on Cheapflights?

    Yes, there are multiple flights from Helena to St. Louis for under $500. The cheapest flight booked recently is on Delta for just $438, but on average you can expect to pay $520.

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

    Delta, at $438, was found to be the cheapest airline from Helena to St. Louis. An alternate airline flying to your destination would be United Airlines.

  • What does HLN to STL mean?

    HLN and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. HLN to STL refers to a flight route from Helena Airport to Lambert-St Louis Airport.

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

    The amount of baggage you can bring on your Helena to St. Louis 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 Helena to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Helena to St. Louis 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 Helena to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena to St. Louis 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 Helena to St. Louis that allow pets onboard?

    Many airlines flying from Helena to St. Louis 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 Helena to St. Louis?

    Yes, you can often find last-minute deals on Helena to St. Louis 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 Helena to St. Louis flight deals updated?

    The Helena to St. Louis flight deals you see on this page were last updated on 4/25.

See more FAQs

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Top 2 airlines flying from Helena to St. Louis

Discover the top 2 airlines that operate flights from Helena to St. Louis. 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 3,068,117 searches. Data last updated April 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$447Average$616FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$452Average$561FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Helena to St. Louis by cabin class

Find flights from Helena to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy 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 Helena to St. Louis?

When you search for this flight from Helena to St. Louis, 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 Helena to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from Helena to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Helena to St. Louis with no change fees.

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

Yes, Cheapflights offers price alerts on Helena to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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