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$124+ Cheap flights from Helena to Ontario (HLN - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Helena to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$332
(Alaska Airlines)

One-way from

$124
(Delta)

Popular in

December

Cheapest in

April

Average price

$367
Provider with most accurate pricing for Helena-Ontario flight deals.
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Provider most trusted by Cheapflights users for Helena-Ontario flights.
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From Helena to Ontario
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One-way flight from Helena to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Helena to Ontario

Cheapest flights from Helena to Ontario
Explore the most affordable flight options available from Helena to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:29 pmHLN - ONT
1 stop21h 03mAlaska Airlines
Thu 4/246:24 pmONT - HLN
1 stop23h 25mAlaska Airlines
Deal found 2/19$332
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/265:45 amHLN - ONT
2 stops11h 57mDelta
Fri 3/286:00 amONT - HLN
1 stop5h 35mDelta
Deal found 2/19$353
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/202:05 pmHLN - ONT
1 stop7h 47mUnited Airlines
Mon 2/246:00 amONT - HLN
2 stops30h 25mUnited Airlines
Deal found 2/19$1,045

Find flights from Helena to Ontario within your budget

Customize your flight search to find flights from Helena to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Helena

Fly to

Ontario

Route

Depart

Return

Price

HelenaOntario

HLN - ONT

HLNONT

Helena

Tue 4/22

7:29 pm-3:32 pm

1 stop21h 03m

Ontario

Thu 4/24

6:24 pm-6:49 pm

1 stop23h 25m

$332

HelenaOntario

HLN - ONT

HLNONT

Helena

Wed 3/26

5:45 am-4:42 pm

2 stops11h 57m

Ontario

Fri 3/28

6:00 am-12:35 pm

1 stop5h 35m

$353

HelenaOntario

HLN - ONT

HLNONT

Helena

Tue 4/8

1:15 pm-10:23 pm

2 stops10h 08m

$124

HelenaOntario

HLN - ONT

HLNONT

Helena

Tue 4/8

6:45 am-12:38 pm

1 stop6h 53m

$154

HelenaOntario

HLN - ONT

HLNONT

Helena

Tue 4/8

4:19 pm-10:39 am

1 stop19h 20m

$159

HelenaOntario

HLN - ONT

HLNONT

Helena

Tue 4/8

2:12 pm-10:39 am

3 stops21h 27m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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

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

Travel insights for flights from Helena to Ontario

Get recent, data-driven insights about flights from Helena to Ontario including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Helena to Ontario (average of $246). Flying from Helena to Ontario in March is currently the most expensive (average of $315). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated February 20, 2025.
Alaska Airlines
8.0
Very good
9,691 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines
8.0
Very good
9,691 reviews
Alaska Airlines
8.0
Very good
9,691 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Delta
8.0
Very good
8,227 reviews
Alaska Airlines
8.0
Very good
9,691 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines
7.4
Good
8,768 reviews
Alaska Airlines
8.0
Very good
9,691 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

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

  • What are the cheapest airlines flying from Helena to Ontario round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Ontario, with prices starting at $332. Another option worth looking into is Delta, starting at $353 round trip.

  • What are the cheapest airlines to fly from Helena to Ontario one-way?

    $124 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $154 and $159, respectively.

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

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

  • How can I find direct flights from Helena to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Helena to Ontario 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 Ontario?

    Currently, August is the cheapest month in which you can book a flight from Helena to Ontario (average of $246). Flying from Helena to Ontario in March is currently the most expensive (average of $315). 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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