In terms of precipitation, rainfall in Dayton ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit Dayton when rainfall is around 2.2 in.

If weather is an important factor for your trip to Dayton, 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 28.4 F).

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

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

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

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

How can I find direct flights from Helena to Dayton?

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

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

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

$509+ Flights from Helena to Dayton

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Cheap flight deals from Helena to Dayton

Round-trip from	$509 (United Airlines)

From Helena to Dayton

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Find flight deals from Helena to Dayton

Cheapest flights from Helena to Dayton
Explore the most affordable flight options available from Helena to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 6, 2025.

Thu 9/182:30 pmHLN - DAY

1 stop5h 42mUnited Airlines

Tue 9/309:20 amDAY - HLN

1 stop6h 49mUnited Airlines

Deal found 7/5

$509

Best flights from Helena to Dayton
Discover carefully curated flight deals from Helena to Dayton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 6, 2025.

Thu 9/182:30 pmHLN - DAY

1 stop5h 42mUnited Airlines

Tue 9/309:20 amDAY - HLN

1 stop6h 49mUnited Airlines

Deal found 7/5

$509

Cheapflights Fare Finder

Use the filters below to find and compare flights from Helena to Dayton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaDayton

HLN - DAY

HLNDAY

Helena

Thu 9/18

2:30 pm-10:12 pm

1 stop5h 42m

Dayton

Tue 9/30

9:20 am-2:09 pm

1 stop6h 49m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/5

Best time to book a flight from Helena to Dayton

Have a flexible travel schedule? Discover the best time to fly to Dayton 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.

Cheapflights Insights

Everything you need to know about your flight from Helena to Dayton

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

Currently, August is the cheapest month in which you can book a flight from Helena to Dayton (average of $325). Flying from Helena to Dayton in March is currently the most expensive (average of $396). 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.

Reviews of airlines servicing Dayton

Peruse reviews from past customers who have flown with United Airlines from Helena to Dayton 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

8,849 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

8,849 reviews

United Airlines

7.4

Good

8,849 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 Dayton that include hotel bookings?
Yes. In addition to deals on Helena to Dayton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Helena to Dayton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to Dayton.
Can I find deals for business class flights from Helena to Dayton?
Yes. Cheapflights offers flight deals from Helena to Dayton 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 Dayton?
Currently, August is the cheapest month in which you can book a flight from Helena to Dayton (average of $325). Flying from Helena to Dayton in March is currently the most expensive (average of $396). 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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Top airline flying from Helena to Dayton

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$279	Average$636	FlexibilityNo cancel fee	On-time69%

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$509+ Cheap flights from Helena to Dayton (HLN - DAY)

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Helena to Dayton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Helena to Dayton

Round-trip from

Find flight deals from Helena to Dayton

Cheapest flights from Helena to DaytonExplore the most affordable flight options available from Helena to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 6, 2025.

Explore the most affordable flight options available from Helena to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 6, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Helena to Dayton that are best for you.

Best time to book a flight from Helena to Dayton

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

Cheapflights Insights

Everything you need to know about your flight from Helena to Dayton

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

Reviews of airlines servicing Dayton

Get insights into the airlines that provide service to Dayton. 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 Dayton. Reviews last updated July 6, 2025.

Peruse reviews from past customers who have flown with United Airlines from Helena to Dayton 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 Dayton. 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 Dayton that include hotel bookings?

How can I find direct flights from Helena to Dayton?

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

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

Traveling to a place near Helena?

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Alternative routes for Helena to Dayton

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Top airline flying from Helena to Dayton

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Cheapest flights from Helena to Dayton
Explore the most affordable flight options available from Helena to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 6, 2025.