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

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How to find the cheapest flight from
St. Louis (STL) to Helena (HLN)

All the information you need to plan the best STL to HLN flight in 2022: compare St. Louis to Helena flight prices with the expected peak season, weather and rainfall in Helena.
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 in the morning. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

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 Wednesday 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 October. Prices are generally better when you fly from St. Louis to Helena in August, with the cheapest ticket starting at $159.

Cheap flights from St. Louis to Helena in January, February 2022

The best prices found for STL to HLN flights for January, February
31 Jan - 7 Feb
$408pp
STL
Lambert-St Louis
United Airlines
 
1 STOP
HLN
Helena
HLN
Helena
United Airlines
 
1 STOP
STL
Lambert-St Louis
31 Jan - 7 Feb
$437pp
STL
Lambert-St Louis
Delta
   
2 STOPS
HLN
Helena
HLN
Helena
Delta
 
1 STOP
STL
Lambert-St Louis
31 Jan - 7 Feb
$529pp
STL
Lambert-St Louis
Delta
   
2 STOPS
HLN
Helena
HLN
Helena
Delta
   
2 STOPS
STL
Lambert-St Louis

Lambert-St Louis to Helena 2022 flight deals

Cheap flights to Helena from St. Louis found for this year
31 Jan - 7 Feb
$408pp
STL
Lambert-St Louis
United Airlines
 
1 STOP
HLN
Helena
HLN
Helena
United Airlines
 
1 STOP
STL
Lambert-St Louis
31 Jan - 7 Feb
$437pp
STL
Lambert-St Louis
Delta
   
2 STOPS
HLN
Helena
HLN
Helena
Delta
 
1 STOP
STL
Lambert-St Louis
22 Jun - 26 Jun
$518pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
HLN
Helena
HLN
Helena
United Airlines
 
1 STOP
STL
Lambert-St Louis

Last minute flights from St. Louis to Helena

Late deals on round-trip flights to Helena from St. Louis, departing today and this week
31 Jan - 7 Feb
$408pp
STL
Lambert-St Louis
United Airlines
 
1 STOP
HLN
Helena
HLN
Helena
United Airlines
 
1 STOP
STL
Lambert-St Louis
31 Jan - 7 Feb
$437pp
STL
Lambert-St Louis
Delta
   
2 STOPS
HLN
Helena
HLN
Helena
Delta
 
1 STOP
STL
Lambert-St Louis
31 Jan - 7 Feb
$529pp
STL
Lambert-St Louis
Delta
   
2 STOPS
HLN
Helena
HLN
Helena
Delta
   
2 STOPS
STL
Lambert-St Louis

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Helena</span> flights.

Flight FAQs

From St. Louis to Helena

Which airlines flying from Lambert-St Louis to Helena have flexible cancellations due to COVID-19?

Some of our airline partners flying from Lambert-St Louis to Helena have new flexible policies in place due to COVID-19. Delta and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

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 Multiple Airlines for just $518, but on average you can expect to pay $820.

Are there last-minute flights available from St. Louis to Helena for under $500?

There are currently 4+ open flights from St. Louis to Helena within the next 7 days for less than $500.

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 $524. Another option worth looking into is Alaska Airlines, starting at $956 round trip.

What are the cheapest flights from St. Louis to Helena?

Looking for the cheapest flight from St. Louis to Helena? While on average our users pay $405, our data indicates the cheapest price to be $207. The most popular route (Lambert-St Louis - Helena), is priced around $524.

COVID Restrictions

View COVID Travel Restrictions for Helena, MT

Do I need a COVID test to fly to Helena from St. Louis?

Information is based on travel restrictions for travel to Helena within the United States

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Helena.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Helena.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Helena.

Do I need a test to fly back to St. Louis from Helena?

Returning to Lambert-St Louis from Helena

COVID-19 testing requirements
Visitors from Helena must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Helena are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Helena, MT

Alternative routes for St. Louis to Helena

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Helena

Things to know before you go - useful duration and weather info for your trip from St. Louis to Helena.
Average temperature for January in Helena
33.8 °F
Avg rainfall for January in Helena
0.4 ″

Airports servicing St. Louis

Airports servicing Helena

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