Which airports can I use when flying from Ontario to Helena?

Flights from Ontario to Helena usually depart from Ontario (ONT) and arrive at Helena (HLN).

What cabin classes can I book on flights from Ontario to Helena?

Only Economy Class is available on flights from Ontario to Helena.

Which airports do connecting flights from Ontario to Helena pass through?

Connecting flights from Ontario to Helena most commonly pass through: • Denver Intl (DEN) - 50% of one-stop connections • Salt Lake City (SLC) - 50% of one-stop connections

Can I save money by using flexible dates for flights from Ontario to Helena?

Yes. Flexible dates can save you up to 58% on flights from Ontario to Helena. Saturday is the cheapest departure day at $328 round-trip on average, while Thursday is the most expensive at $775, a difference of $447. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

How long is a flight from Ontario to Helena?

There are currently no nonstop flights available from Ontario to Helena. Flights with 1 layover take between 5h 30m and 7h 24m in total, depending on the connection.

Do I need a passport to fly from Ontario to Helena?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Ontario to Helena changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $369 to $2,217. That means the highest observed fare was about 6x higher than the lowest one.

How are flight prices from Ontario to Helena looking right now?

One-way fares from Ontario to Helena are currently higher than usual. Average one-way flight prices are about $410, which is 96% above the typical average for this route.

How much time can I save by choosing a different layover airport from Ontario to Helena?

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 30m, compared with 7h 24m via Denver Intl (DEN).

What is the time difference between Ontario and Helena?

Helena is 1 hour ahead of Ontario (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Helena Airport (HLN)?

Helena Airport (HLN) hosts 5 major car rental companies, with daily rates averaging $83 for economy cars. Top options include: • Budget • Enterprise Rent-A-Car • Hertz • Avis • National

How much is a round-trip flight from Ontario to Helena?

Round-trip flights from Ontario to Helena typically range from $328 to $775. The lowest price found in the past 5 days was $369, on Alaska Airlines.

Which airline is the cheapest to fly from Ontario to Helena?

Alaska Airlines ($369) and Delta ($424) are the cheapest airlines to fly round-trip from Ontario to Helena according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Ontario to Helena?

Denver Intl (DEN) and Salt Lake City (SLC) are the most popular layovers for the Ontario to Helena route. 50% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN or SLC.

What is the cheapest layover airport when flying from Ontario to Helena?

Flights via Salt Lake City (SLC) offer the most affordable fares, with an average round-trip price of $493. Based on KAYAK data over the past 3 months.

When flying from Ontario to Helena which airport offers the shortest layover?

Salt Lake City (SLC) had the shortest average connection time for Ontario to Helena layovers at 3h 47m over the past 3 months.

$185 CHEAP FLIGHTS from Ontario to Helena (ONT - HLN)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$369

Typical prices: $328-$775

Alaska Airlines

Tue 1/30Sat 2/3

ONT - HLN • 1 stop

Cheapest one-way

$185

Typical prices: $165-$329

Delta

Sat 11/24

ONT - HLN • 1 stop

Top layover airports

Salt Lake City (SLC)

Cheapest • Avg $493 (round-trip)

Denver Intl (DEN)

Shortest trip • 7h 24m (one-way)

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Helena!

Flight Deals

Cheap Flights from Ontario to Helena (ONT-HLN)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Helena

Sat, Jan 30 - Wed, Feb 3

7:00 am - 4:23 pmONT Ontario-HLN Helena

8h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 10:41 pmHLN Helena-ONT Ontario

6h 41m1 stop Seattle/Tacoma Intl

$369Alaska Airlines

Sat, Jan 30 - Wed, Feb 3

7:10 am - 4:23 pmONT Ontario-HLN Helena

8h 13m2 stops Portland Seattle/Tacoma Intl

5:00 pm - 10:41 pmHLN Helena-ONT Ontario

6h 41m1 stop Seattle/Tacoma Intl

$411Alaska Airlines

Mon, Dec 7 - Sun, Dec 13

6:00 am - 12:30 pmONT Ontario-HLN Helena

5h 30m1 stop Salt Lake City

7:03 am - 12:17 pmHLN Helena-ONT Ontario

6h 14m1 stop Salt Lake City

$424Delta

Mon, Dec 7 - Sun, Dec 13

6:00 am - 12:30 pmONT Ontario-HLN Helena

5h 30m1 stop Salt Lake City

1:10 pm - 10:59 pmHLN Helena-ONT Ontario

10h 49m2 stops Salt Lake City Seattle/Tacoma Intl

$429Delta

Thu, Feb 11 - Sun, Feb 14

5:00 am - 1:55 pmONT Ontario-HLN Helena

7h 55m1 stop Denver Intl

2:36 pm - 9:17 pmHLN Helena-ONT Ontario

7h 41m1 stop Denver Intl

$469United Airlines

Thu, Feb 11 - Sun, Feb 14

1:45 pm - 9:38 pmONT Ontario-HLN Helena

6h 53m1 stop Denver Intl

2:36 pm - 9:17 pmHLN Helena-ONT Ontario

7h 41m1 stop Denver Intl

$469United Airlines

Wed, Feb 10 - Sun, Feb 14

5:00 am - 1:40 pmONT Ontario-HLN Helena

7h 40m1 stop Denver Intl

2:36 pm - 9:17 pmHLN Helena-ONT Ontario

7h 41m1 stop Denver Intl

$469United Airlines

Wed, Feb 10 - Sun, Feb 14

5:00 am - 1:40 pmONT Ontario-HLN Helena

7h 40m1 stop Denver Intl

2:36 pm - 9:17 pmHLN Helena-ONT Ontario

7h 41m1 stop Denver Intl

$469United Airlines

Sat, Nov 28 - Sat, Dec 5

5:00 am - 1:40 pmONT Ontario-HLN Helena

7h 40m1 stop Denver Intl

6:20 am - 12:34 pmHLN Helena-ONT Ontario

7h 14m1 stop Denver Intl

$597United Airlines

Thu, Dec 24 - Mon, Dec 28

5:00 am - 1:46 pmONT Ontario-HLN Helena

7h 46m1 stop Denver Intl

6:20 am - 12:42 pmHLN Helena-ONT Ontario

7h 22m1 stop Denver Intl

$597United Airlines

Booking Insights

Price, demand and travel trends for Ontario to Helena flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Ontario to Helena? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Helena departing in january.

Find deals

Cheapest flight	$185

One-way flight from Ontario to Helena

When to book flights from Ontario to Helena

Are your dates flexible? Find out the best times to travel from Ontario to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Ontario to Helena?
Only Economy Class is available on flights from Ontario to Helena.
How long is a flight from Ontario to Helena?
There are currently no nonstop flights available from Ontario to Helena. Flights with 1 layover take between 5h 30m and 7h 24m in total, depending on the connection.
Do I need a passport to fly from Ontario to Helena?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
Have flight prices from Ontario to Helena changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $369 to $2,217. That means the highest observed fare was about 6x higher than the lowest one.
How are flight prices from Ontario to Helena looking right now?
One-way fares from Ontario to Helena are currently higher than usual. Average one-way flight prices are about $410, which is 96% above the typical average for this route.
What car rental options are available at Helena Airport (HLN)?
Helena Airport (HLN) hosts 5 major car rental companies, with daily rates averaging $83 for economy cars. Top options include:

• Budget
• Enterprise Rent-A-Car
• Hertz
• Avis
• National
Which airports can I use when flying from Ontario to Helena?
Flights from Ontario to Helena usually depart from Ontario (ONT) and arrive at Helena (HLN).
Which airports do connecting flights from Ontario to Helena pass through?
Connecting flights from Ontario to Helena most commonly pass through:

• Denver Intl (DEN) - 50% of one-stop connections
• Salt Lake City (SLC) - 50% of one-stop connections
Can I save money by using flexible dates for flights from Ontario to Helena?
Yes. Flexible dates can save you up to 58% on flights from Ontario to Helena. Saturday is the cheapest departure day at $328 round-trip on average, while Thursday is the most expensive at $775, a difference of $447.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
How much time can I save by choosing a different layover airport from Ontario to Helena?
Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 30m, compared with 7h 24m via Denver Intl (DEN).
What is the time difference between Ontario and Helena?
Helena is 1 hour ahead of Ontario (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Saturday departure and avoid flying on Thursday. On this route, Saturday flights average $328, about $447 less than Thursday fares (58% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Helena Airport.

• La Quinta Inn & Suites by Wyndham Helena
• Baymont by Wyndham Helena
• Home2 Suites By Hilton Helena

More options for your flight from Ontario to Helena

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

Return flight

Complete your trip to Helena with a hotel stay or car rental

Car rentals in Helena

Hotels in Helena

Vacations in Helena

ONT - HLN

$185 Find Cheap Flights from Ontario to Helena - Compare and Save

Everything you should know

Cheap Flights from Ontario to Helena (ONT-HLN)

Recent round-trip flight deals from Ontario to Helena

Recent one-way flight deals from Ontario to Helena

Recent last minute flight deals from Ontario to Helena

Price, demand and travel trends for Ontario to Helena flights

How much is a round-trip flight from Ontario to Helena?

Which airline is the cheapest to fly from Ontario to Helena?

What’s the most popular layover airport when flying from Ontario to Helena?

What is the cheapest layover airport when flying from Ontario to Helena?

When flying from Ontario to Helena which airport offers the shortest layover?

Key details for Ontario to Helena flights

Cheapest flight

When to book flights from Ontario to Helena

Your Ontario to Helena flight questions, answered

Your guide to booking Ontario to Helena flights

More options for your flight from Ontario to Helena

Complete your trip to Helena with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Helena

Find direct flights to and from Ontario and Helena

Flights from domestic origins to Helena

Flights to other popular destinations

Find deals for your return flight