What is the cheapest month to book a flight from Helena to Rapid City?

Currently, January is the cheapest month in which you can book a flight from Helena to Rapid City (average of $348). Flying from Helena to Rapid City in June is currently the most expensive (average of $502). 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.

What is the cheapest day to fly from Helena to Rapid City?

Travelers seeking maximum savings on their Helena to Rapid City flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly round-trip from Helena to Rapid City?

It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Unlike at noon, when flights are generally more expensive, you can save up to 18% on flights from Helena to Rapid City by exploring options for tickets in the morning.

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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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.

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

8,931 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,931 reviews

United Airlines

7.4

Good

8,931 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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.
What is the cheapest month to book a flight from Helena to Rapid City?
Currently, January is the cheapest month in which you can book a flight from Helena to Rapid City (average of $348). Flying from Helena to Rapid City in June is currently the most expensive (average of $502). 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.

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Top airline flying from Helena to Rapid City

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$270	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

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.

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?

What is the cheapest month to book a flight 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 September 14, 2025.

Other flights from Helena

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Other flights to Rapid City

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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

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.

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?

What is the cheapest month to book a flight 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.

Top airline flying from Helena to Rapid City

100% Free

Book with Flexibility

Travel Smart