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Cheap flights from Helena to St. Louis (HLN - STL) from $687

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 7/21. 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
Jun 3 — Jun 101
From?
To?
Mon 6/3
Mon 6/10
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 May 29, 2024.

Popular in

July

Cheapest in

January

Average price

$552

Round-trip from

$319
High demand for flights, 28% 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 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.

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

The best pricing can be found in the month of January. Prices to St. Louis from Helena average $654. You can even find prices in January for less than $654, as users have found deals to St. Louis from as low as $426. The month of July appears to be one of the more expensive times to travel to St. Louis from Helena. Flying in the targeted month can save you up to 39%.

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 26% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Alaska Airlines flights from Helena to St. Louis

Explore cheap flight options specifically provided by Alaska Airlines 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 2,696,634 searches. Data last updated May 29, 2024.
Sun 7/217:00 amHLN - STL
1 stop15h 59mAlaska Airlines
Fri 7/267:32 pmSTL - HLN
1 stop20h 37mAlaska Airlines
Deal found 5/27$687
Sun 7/217:00 amHLN - STL
2 stops25h 29mAlaska Airlines
Fri 7/2610:19 amSTL - HLN
2 stops14h 40mAlaska Airlines
Deal found 5/27$800

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

Find cheap flight options from Helena to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Prices were last updated on May 29, 2024.
Tue 6/117:00 amHLN - STL
1 stop10h 41mAlaska Airlines
Thu 6/137:32 pmSTL - HLN
1 stop20h 33mAlaska Airlines
Deal found 5/27$692
Tue 6/117:00 amHLN - STL
2 stops12h 24mAlaska Airlines
Thu 6/137:32 pmSTL - HLN
1 stop29h 27mAlaska Airlines
Deal found 5/27$790
Tue 6/117:00 amHLN - STL
2 stops12h 24mAlaska Airlines
Thu 6/139:47 amSTL - HLN
2 stops15h 12mAlaska Airlines
Deal found 5/27$865

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 2,696,634 searches. Data last updated May 29, 2024.
Sun 7/217:00 amHLN - STL
1 stop15h 59mAlaska Airlines
Fri 7/267:32 pmSTL - HLN
1 stop20h 37mAlaska Airlines
Deal found 5/27$687
Tue 6/117:00 amHLN - STL
1 stop10h 41mAlaska Airlines
Thu 6/137:32 pmSTL - HLN
1 stop20h 33mAlaska Airlines
Deal found 5/27$692
Sun 7/216:45 amHLN - STL
1 stop8h 52mUnited Airlines
Fri 7/265:30 pmSTL - HLN
2 stops28h 48mUnited Airlines
Deal found 5/27$720
Tue 6/117:00 amHLN - STL
2 stops12h 24mAlaska Airlines
Thu 6/137:32 pmSTL - HLN
1 stop29h 27mAlaska Airlines
Deal found 5/27$790
Sun 7/217:00 amHLN - STL
2 stops25h 29mAlaska Airlines
Fri 7/2610:19 amSTL - HLN
2 stops14h 40mAlaska Airlines
Deal found 5/27$800
Tue 6/117:00 amHLN - STL
2 stops12h 24mAlaska Airlines
Thu 6/139:47 amSTL - HLN
2 stops15h 12mAlaska Airlines
Deal found 5/27$865

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 2,696,634 searches. Data last updated May 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$687 - $800

Route

Depart

Return

Price

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Sun 7/21

1 stop15h 59m

Lambert-St Louis

Fri 7/26

1 stop20h 37m

$687

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Sun 7/21

1 stop8h 52m

Lambert-St Louis

Fri 7/26

2 stops28h 48m

$720

HelenaLambert-St Louis

HLN - STL

HLNSTL

Helena

Sun 7/21

2 stops25h 29m

Lambert-St Louis

Fri 7/26

2 stops14h 40m

$800

Flights are sorted by cheapest first

Deals found on 5/27

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 May 26, 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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Best time to book a flight from Helena to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Helena 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 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 May 29, 2024.
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,194 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,799 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Crew

8.6

Entertainment

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

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 $700 on Cheapflights?

    Yes, there are multiple flights from Helena to St. Louis for under $700. The cheapest flight booked recently is on Alaska Airlines for just $687, but on average you can expect to pay $735.

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

    Alaska Airlines, at $687, 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 5/27.

  • When is the best time to book a flight from Helena to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Helena to St. Louis (average of $319). Flying from Helena to St. Louis in July is currently the most expensive (average of $366). 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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Alternative routes for Helena to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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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 2,696,634 searches. Data last updated May 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$437Average$561FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$445Average$593FlexibilityNo cancel feeOn-time69%
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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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