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

STL — HLN
Dec 3 — Dec 101

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 Sunday 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.

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 27% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from St. Louis to Helena in November, December 2022

The best prices found for STL to HLN flights for November, December
Dec 11 - Dec 18
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

1 stop

13h 02m
$463

United Airlines

Pick Dates

Deal found 11/27

Dec 11 - Dec 19
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

2 stops

14h 57m
$467

United Airlines

Pick Dates

Deal found 11/27

Dec 10 - Dec 19
STL

Lambert-St Louis

HLN

Helena

2 stops

31h 57m
HLN

Helena

STL

Lambert-St Louis

1 stop

13h 02m
$487

United Airlines

Pick Dates

Deal found 11/27

St. Louis to Helena 2022 flight deals

Cheap flights to Helena from St. Louis found for this year
Dec 11 - Dec 18
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

1 stop

13h 02m
$463

United Airlines

Pick Dates

Deal found 11/27

Dec 11 - Dec 19
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

2 stops

14h 57m
$467

United Airlines

Pick Dates

Deal found 11/27

Dec 10 - Dec 19
STL

Lambert-St Louis

HLN

Helena

2 stops

31h 57m
HLN

Helena

STL

Lambert-St Louis

1 stop

13h 02m
$487

United Airlines

Pick Dates

Deal found 11/27

Cheap United Airlines flights from St. Louis to Helena

Jan 17 - Jan 25
STL

Lambert-St Louis

HLN

Helena

1 stop

6h 29m
HLN

Helena

STL

Lambert-St Louis

1 stop

5h 46m
$416

United Airlines

Pick Dates

Deal found 11/27

Jan 9 - Jan 18
STL

Lambert-St Louis

HLN

Helena

2 stops

29h 36m
HLN

Helena

STL

Lambert-St Louis

1 stop

5h 46m
$451

United Airlines

Pick Dates

Deal found 11/27

Dec 11 - Dec 18
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

1 stop

13h 02m
$463

United Airlines

Pick Dates

Deal found 11/27

Cheap Delta flights from St. Louis to Helena

Jan 24 - Jan 31
STL

Lambert-St Louis

HLN

Helena

2 stops

11h 52m
HLN

Helena

STL

Lambert-St Louis

1 stop

6h 18m
$420

Delta

Pick Dates

Deal found 11/27

Jan 14 - Jan 20
STL

Lambert-St Louis

HLN

Helena

1 stop

5h 29m
HLN

Helena

STL

Lambert-St Louis

1 stop

6h 18m
$452

Delta

Pick Dates

Deal found 11/27

Jan 14 - Jan 20
STL

Lambert-St Louis

HLN

Helena

1 stop

5h 29m
HLN

Helena

STL

Lambert-St Louis

2 stops

8h 57m
$456

Delta

Pick Dates

Deal found 11/27

Last minute flights from St. Louis to Helena

Late deals on return flights to Helena from St. Louis, departing today and this week
Dec 8 - Dec 14
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

1 stop

13h 35m
$534

United Airlines

Pick Dates

Deal found 11/27

Dec 8 - Dec 15
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

1 stop

13h 02m
$568

United Airlines

Pick Dates

Deal found 11/27

Dec 8 - Dec 14
STL

Lambert-St Louis

HLN

Helena

1 stop

15h 42m
HLN

Helena

STL

Lambert-St Louis

2 stops

31h 23m
$572

United Airlines

Pick Dates

Deal found 11/27

One-way flights to Helena from St. Louis

The cheapest one-way flights from St. Louis to Helena
Dec 16
STL

Lambert-St Louis

HLN

Helena

2 stops

17h 39m
$274

Multiple Airlines

Pick Dates

Deal found 11/27

Dec 15
STL

Lambert-St Louis

HLN

Helena

2 stops

41h 39m
$297

Multiple Airlines

Pick Dates

Deal found 11/27

Dec 17
STL

Lambert-St Louis

HLN

Helena

2 stops

17h 39m
$361

Multiple Airlines

Pick Dates

Deal found 11/27

Related info for your journey

Useful info, stats and facts about St. Louis to Helena flights.

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 $500 on Cheapflights?

Yes, there are multiple flights from St. Louis to Helena for under $500. The cheapest flight booked recently is on United Airlines for just $416, but on average you can expect to pay $466.

Are there last-minute flights available from St. Louis to Helena for under $600?

There are currently 14+ open flights from St. Louis to Helena within the next 7 days for less than $600.

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 $649, our data indicates the cheapest price to be $391. The most popular route (Lambert-St Louis - Helena), is priced around $634.

Alternative routes for St. Louis to Helena

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

Top 2 airlines flying from St. Louis to Helena

The chart below displays the airlines Cheapflights users traveling from St. Louis to Helena choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest$333Average$779FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
DeltaCheapest$425Average$767FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights