Can I find flights from Ontario to Helena for under $500 on Cheapflights?

Yes, there are multiple flights from Ontario to Helena for under $500. The cheapest flight booked recently is on Alaska Airlines for just $415, but on average you can expect to pay $620.

Are there last-minute flights available from Ontario to Helena for under $1,000?

There are currently 3+ open flights from Ontario to Helena within the next 7 days for less than $1,000.

Which airlines flying from Ontario to Helena have flexible changes due to COVID-19?

Some of our airline partners flying from Ontario to Helena have new flexible policies in place due to COVID-19. Delta is one of the carriers where you may find flexible change policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

What is the cheapest month to fly from Ontario to Helena?

Due to multiple factors, expect to potentially pay more when booking in May. For low rates, October can be a great choice for travel to Helena. Flights to Helena from Ontario in October are about $593 on average during October, but can be found for as low as $311.

When is the cheapest time to fly from Ontario to Helena (ONT - HLN)?

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

What does ONT to HLN mean?

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ontario Airport to Helena Airport flight would often be abbreviated as a ONT to HLN flight.

Flights from Ontario, CA to Helena, MT from $228

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

ONT — HLN

Jun 6 — Jun 131

Round-tripOne-way

1 adult, Economy

We work with more than 300 partners to bring you better travel deals

Cheap flights from Ontario to Helena in June, July 2023

Scroll through some of the best deals on flights from Ontario to Helena in 2023. Check back in a little while for more flight options.

Jun 13 - Jun 20

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

1 stop

14h 21m

$585

United Airlines

Deal found 5/31

Jun 18 - Jun 19

ONT

Ontario

HLN

Helena

1 stop

5h 30m

HLN

Helena

ONT

Ontario

1 stop

6h 55m

$707

Delta

Deal found 5/31

Jun 13 - Jun 20

ONT

Ontario

HLN

Helena

2 stops

9h 52m

HLN

Helena

ONT

Ontario

1 stop

23h 00m

$821

Multiple Airlines

Deal found 5/31

Jun 13 - Jun 20

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

3 stops

18h 01m

$916

United Airlines

Deal found 5/31

Jun 7 - Jun 10

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

1 stop

14h 21m

$930

United Airlines

Deal found 5/30

Jun 7 - Jun 10

ONT

Ontario

HLN

Helena

2 stops

9h 52m

HLN

Helena

ONT

Ontario

1 stop

16h 44m

$951

Multiple Airlines

Deal found 5/30

Jun 7 - Jun 10

ONT

Ontario

HLN

Helena

2 stops

12h 13m

HLN

Helena

ONT

Ontario

2 stops

11h 52m

$1,120

Multiple Airlines

Deal found 5/30

Ontario to Helena 2023 flight deals

Scroll through some of the best deals on flights from Ontario to Helena in 2023. Check back in a little while for more flight options.

Jul 25 - Aug 1

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 54m

$415

Alaska Airlines

Deal found 6/1

Aug 14 - Aug 18

ONT

Ontario

HLN

Helena

1 stop

23h 30m

HLN

Helena

ONT

Ontario

1 stop

22h 20m

$420

Alaska Airlines

Deal found 5/31

Aug 13 - Aug 17

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 49m

$455

Alaska Airlines

Deal found 5/31

Jul 24 - Jul 27

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 54m

$525

Alaska Airlines

Deal found 5/30

Jul 21 - Jul 27

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 54m

$545

Alaska Airlines

Deal found 5/30

Jun 13 - Jun 20

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

1 stop

14h 21m

$585

United Airlines

Deal found 5/31

Jul 5 - Jul 16

ONT

Ontario

HLN

Helena

1 stop

27h 25m

HLN

Helena

ONT

Ontario

1 stop

23h 00m

$620

Alaska Airlines

Deal found 6/1

Jun 18 - Jun 19

ONT

Ontario

HLN

Helena

1 stop

5h 30m

HLN

Helena

ONT

Ontario

1 stop

6h 55m

$707

Delta

Deal found 5/31

Jun 13 - Jun 20

ONT

Ontario

HLN

Helena

2 stops

9h 52m

HLN

Helena

ONT

Ontario

1 stop

23h 00m

$821

Multiple Airlines

Deal found 5/31

Cheap United Airlines flights from Ontario to Helena

Consider these cheap United Airlines flights we've found departing from Ontario to Helena. It's recommended that users confirm their flight details before booking.

Jun 13 - Jun 20

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

1 stop

14h 21m

$585

United Airlines

Deal found 5/31

Jun 13 - Jun 20

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

3 stops

18h 01m

$916

United Airlines

Deal found 5/31

Jun 7 - Jun 10

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

1 stop

14h 21m

$930

United Airlines

Deal found 5/30

Cheap Alaska Airlines flights from Ontario to Helena

Have a look at some of the cheapest available Alaska Airlines flights departing from Ontario and landing in Helena. Make sure to examine the flight information before completing your reservation.

Jul 25 - Aug 1

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 54m

$415

Alaska Airlines

Deal found 6/1

Aug 14 - Aug 18

ONT

Ontario

HLN

Helena

1 stop

23h 30m

HLN

Helena

ONT

Ontario

1 stop

22h 20m

$420

Alaska Airlines

Deal found 5/31

Aug 13 - Aug 17

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 49m

$455

Alaska Airlines

Deal found 5/31

Jul 24 - Jul 27

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 54m

$525

Alaska Airlines

Deal found 5/30

Jul 21 - Jul 27

ONT

Ontario

HLN

Helena

1 stop

12h 00m

HLN

Helena

ONT

Ontario

1 stop

13h 54m

$545

Alaska Airlines

Deal found 5/30

Jul 7 - Jul 9

ONT

Ontario

HLN

Helena

1 stop

27h 25m

HLN

Helena

ONT

Ontario

1 stop

23h 00m

$560

Alaska Airlines

Deal found 6/1

Jul 5 - Jul 16

ONT

Ontario

HLN

Helena

1 stop

27h 25m

HLN

Helena

ONT

Ontario

1 stop

23h 00m

$620

Alaska Airlines

Deal found 6/1

Last minute flights from Ontario to Helena

Consider one of these great deals we found on last-minute flights from Ontario to Helena. Users should be sure to double check the price, date, and time of their last-minute flight.

Jun 7 - Jun 10

ONT

Ontario

HLN

Helena

1 stop

15h 14m

HLN

Helena

ONT

Ontario

1 stop

14h 21m

$930

United Airlines

Deal found 5/30

Jun 7 - Jun 10

ONT

Ontario

HLN

Helena

2 stops

9h 52m

HLN

Helena

ONT

Ontario

1 stop

16h 44m

$951

Multiple Airlines

Deal found 5/30

Jun 7 - Jun 10

ONT

Ontario

HLN

Helena

2 stops

12h 13m

HLN

Helena

ONT

Ontario

2 stops

11h 52m

$1,120

Multiple Airlines

Deal found 5/30

One-way flights to Helena from Ontario

Users traveling one-way from Ontario to Helena can select one of these great deals. Those seeking round-trip flights from Ontario to Helena should utilize the search form at the the top of the page.

Jul 21

ONT

Ontario

HLN

Helena

1 stop

12h 00m

$228

Alaska Airlines

Deal found 5/31

Jul 22

ONT

Ontario

HLN

Helena

1 stop

12h 00m

$243

Alaska Airlines

Deal found 5/31

Jul 21

ONT

Ontario

HLN

Helena

2 stops

14h 15m

$253

Alaska Airlines

Deal found 5/31

Jul 23

ONT

Ontario

HLN

Helena

1 stop

7h 01m

$340

United Airlines

Deal found 5/31

Jul 22

ONT

Ontario

HLN

Helena

2 stops

14h 50m

$377

Alaska Airlines

Deal found 5/31

Jun 8

ONT

Ontario

HLN

Helena

1 stop

7h 02m

$449

United Airlines

Deal found 5/31

Jul 21

ONT

Ontario

HLN

Helena

3 stops

22h 26m

$489

Multiple Airlines

Deal found 5/31

Jun 8

ONT

Ontario

HLN

Helena

2 stops

9h 52m

$523

United Airlines

Deal found 5/31

Jul 23

ONT

Ontario

HLN

Helena

2 stops

22h 40m

$658

Multiple Airlines

Deal found 5/31

Find flights from Ontario to Helena within your budget

Fly from

Fly to

Budget

$415 - $821

Route

Depart

Return

Price

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Tue 7/25

1 stop12h 00m

Helena

Tue 8/1

1 stop13h 54m

$415

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Mon 8/14

1 stop23h 30m

Helena

Fri 8/18

1 stop22h 20m

$420

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Sun 8/13

1 stop12h 00m

Helena

Thu 8/17

1 stop13h 49m

$455

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Mon 7/24

1 stop12h 00m

Helena

Thu 7/27

1 stop13h 54m

$525

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Fri 7/21

1 stop12h 00m

Helena

Thu 7/27

1 stop13h 54m

$545

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Tue 6/13

1 stop15h 14m

Helena

Tue 6/20

1 stop14h 21m

$585

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Fri 6/16

1 stop4h 15m

Helena

Tue 6/20

1 stop6h 55m

$702

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Sun 6/18

1 stop5h 30m

Helena

Mon 6/19

1 stop6h 55m

$707

Pick Dates

OntarioHelena

ONT - HLN

ONTHLN

Ontario

Tue 6/13

2 stops9h 52m

Helena

Tue 6/20

1 stop23h 00m

$821

Pick Dates

Flights are sorted by cheapest first

Deals found on 6/1

Reviews of Airlines Servicing Helena

Get a feel of what it's like to fly with United Airlines, Alaska Airlines and Delta from Ontario to Helena by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

The airlines could have overhead storage. It’s annoying that everyone has gone to airplanes that have no overhead storage after the idea was established for years on end.

Alaska Airlines

8.0

Very good

1,375 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

The airlines could have overhead storage. It’s annoying that everyone has gone to airplanes that have no overhead storage after the idea was established for years on end.

Delta

8.0

Very good

2,372 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

The airlines could have overhead storage. It’s annoying that everyone has gone to airplanes that have no overhead storage after the idea was established for years on end.

United Airlines

7.6

Good

1,535 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

The airlines could have overhead storage. It’s annoying that everyone has gone to airplanes that have no overhead storage after the idea was established for years on end.

Related info for your journey

Alternative routes for Ontario to Helena

Los Angeles to Missoulafrom $63 pp

Santa Ana to Missoulafrom $77 pp

Oakland to Missoulafrom $81 pp

Burbank to Bozemanfrom $90 pp

Los Angeles to Kalispellfrom $106 pp

Oakland to Kalispellfrom $114 pp

Top airline flying from Ontario to Helena

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
Delta	Cheapest$359	Average$561	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Delta flights

Las Vegas to San Francisco flights

Newark Airport to San Francisco flights

Orlando to Las Vegas flights

USA to London flights

USA to China flights

Miami to Tampa flights

Ohio to Florida flights

Los Angeles to Cancún flights

San Francisco to Hawaii flights

Dallas to Houston flights

San Francisco to Denver flights

Ontario to Hermosillo flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ontario to Helena (ONT - HLN) from $228

This is the cheapest one-way flight price, found on 5/31. Prices may vary by date and flight preferences.

What is the cheapest month to fly from Ontario to Helena?

When is the cheapest time to fly from Ontario to Helena (ONT - HLN)?

Cheap flights from Ontario to Helena in June, July 2023

The best prices found for ONT to HLN flights for June, July

Scroll through some of the best deals on flights from Ontario to Helena in 2023. Check back in a little while for more flight options.

Ontario to Helena 2023 flight deals

Cheap flights to Helena from Ontario found for this year

Scroll through some of the best deals on flights from Ontario to Helena in 2023. Check back in a little while for more flight options.

Cheap United Airlines flights from Ontario to Helena

Consider these cheap United Airlines flights we've found departing from Ontario to Helena. It's recommended that users confirm their flight details before booking.

Cheap Alaska Airlines flights from Ontario to Helena

Have a look at some of the cheapest available Alaska Airlines flights departing from Ontario and landing in Helena. Make sure to examine the flight information before completing your reservation.

Last minute flights from Ontario to Helena

Late deals on return flights to Helena from Ontario, departing today and this week

Consider one of these great deals we found on last-minute flights from Ontario to Helena. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to Helena from Ontario

The cheapest one-way flights from Ontario to Helena

Users traveling one-way from Ontario to Helena can select one of these great deals. Those seeking round-trip flights from Ontario to Helena should utilize the search form at the the top of the page.

Find flights from Ontario to Helena within your budget

Use the slider to find flights from Ontario to Helena that fit your budget.

Reviews of Airlines Servicing Helena

Get a feel of what it's like to fly with United Airlines, Alaska Airlines and Delta from Ontario to Helena by reading reviews from past customers. 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

Useful info, stats and facts about Ontario to Helena flights.

Which airlines flying from Ontario to Helena have flexible changes due to COVID-19?

Can I find flights from Ontario to Helena for under $500 on Cheapflights?

Are there last-minute flights available from Ontario to Helena for under $1,000?

What does ONT to HLN mean?

Other flights from Ontario

Other flights to Helena

Flights to Helena from Ontario

Rent a Car

Alternative routes for Ontario to Helena

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

Top airline flying from Ontario to Helena

The chart below displays the airlines Cheapflights users traveling from Ontario to Helena choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2023

100% Free

Book with Flexibility

Travel Smart