What is the cheapest airline to fly from Helena to Rapid City round-trip?

Our cheapest airline available from Helena to Rapid City is United Airlines. Our recent data shows that you can find tickets from as low as $248 on this airline.

In terms of precipitation, rainfall in Rapid City ranges from 0.3 - 3.2 inches per month. May is typically the wettest month, when rainfall can reach 3.2 in. January is typically the driest time to visit Rapid City when rainfall is around 0.3 in.

If weather is an important factor for your trip to Rapid City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What is the cheapest time of day to fly from HLN to RAP?

When flying from Helena to Rapid City, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Helena-Rapid City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-Rapid City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-Rapid City flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Helena-Rapid City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helena-Rapid City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Helena to Rapid City that include hotel bookings?

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

How can I find direct flights from Helena to Rapid City?

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

Can I find deals for business class flights from Helena to Rapid City?

Yes. Cheapflights offers flight deals from Helena to Rapid City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Most accurate provider	FlightHub 3 stars
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Provider with most accurate pricing for Helena-Rapid City flight deals.

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Provider most trusted by Cheapflights users for Helena-Rapid City flights.

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Most accurate provider: When it comes to deals on Helena-Rapid City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-Rapid City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-Rapid City flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Helena-Rapid City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helena-Rapid City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helena to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Helena with our price prediction graph.

HLN-RAP

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.

Reviews of airlines servicing Rapid City

Peruse reviews from past customers who have flown with United Airlines from Helena to Rapid City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,675 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

United Airlines

7.4

Good

9,675 reviews

United Airlines

7.4

Good

9,675 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

What is the cheapest airline to fly from Helena to Rapid City round-trip?
Our cheapest airline available from Helena to Rapid City is United Airlines. Our recent data shows that you can find tickets from as low as $248 on this airline.
Can I find deals for flights from Helena to Rapid City that include hotel bookings?
Yes. In addition to deals on Helena to Rapid City flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Helena to Rapid City?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to Rapid City.
Can I find deals for business class flights from Helena to Rapid City?
Yes. Cheapflights offers flight deals from Helena to Rapid City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Helena to Rapid City

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$248	Average$288	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Helena to Rapid City with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Helena to Rapid City

Most accurate provider

Most trusted provider

Best time to book a flight from Helena to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Helena with our price prediction graph.

Reviews of airlines servicing Rapid City

Peruse reviews from past customers who have flown with United Airlines from Helena to Rapid City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Helena to Rapid City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Helena to Rapid City round-trip?

Can I find deals for flights from Helena to Rapid City that include hotel bookings?

How can I find direct flights from Helena to Rapid City?

Can I find deals for business class flights from Helena to Rapid City?

Traveling to a place near Rapid City?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Helena to Rapid City

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

Complete your trip

Complete your trip to Rapid City by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Helena to Rapid City by cabin class

Find flights from Helena to Rapid City, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Helena and Rapid City flights

Browse other Helena and Rapid City flight options. Last updated on May 1, 2026.

Other flights from Helena

Browse through other flights departing from Helena. Flights are based on user searches made on Cheapflights and were last updated on May 1, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to Rapid City

Explore flights to Rapid City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 1, 2026.

Top airline flying from Helena to Rapid City

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Cheap flights from Helena to Rapid City (HLN - RAP)

Find cheap flights from Helena to Rapid City with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Helena to Rapid City

Most accurate provider

Most trusted provider

Best time to book a flight from Helena to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Helena with our price prediction graph.

Reviews of airlines servicing Rapid City

Peruse reviews from past customers who have flown with United Airlines from Helena to Rapid City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Helena to Rapid City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Helena to Rapid City round-trip?

Can I find deals for flights from Helena to Rapid City that include hotel bookings?

How can I find direct flights from Helena to Rapid City?

Can I find deals for business class flights from Helena to Rapid City?

Traveling to a place near Rapid City?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Helena to Rapid City

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

Complete your trip

Complete your trip to Rapid City by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Helena to Rapid City by cabin class

Find flights from Helena to Rapid City, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Helena and Rapid City flights

Browse other Helena and Rapid City flight options. Last updated on May 1, 2026.

Other flights from Helena

Browse through other flights departing from Helena. Flights are based on user searches made on Cheapflights and were last updated on May 1, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to Rapid City

Explore flights to Rapid City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 1, 2026.

Top airline flying from Helena to Rapid City

100% Free

Book with Flexibility

Travel Smart