HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billings

$128+ Cheap flights from Ontario to Billings (ONT - BIL)

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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BIL
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Billings with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Billings

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Billings (BIL). 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

$299
(Alaska Airlines)

One-way from

$128
(Alaska Airlines)

Popular in

April

Cheapest in

October

Average price

$380
Provider with most accurate pricing for Ontario-Billings Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Billings Logan Intl flights.
Search Deals
From Ontario to Billings Logan Intl
Search Deals
One-way flight from Ontario to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Ontario to Billings

Cheapest flights from Ontario to Billings
Explore the most affordable flight options available from Ontario to Billings. 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 2/20. 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.
Fri 4/186:55 amONT - BIL
1 stop6h 20mAlaska Airlines
Sun 4/202:55 pmBIL - ONT
1 stop10h 04mAlaska Airlines
Deal found 2/20$299
This Delta deal was found by Cheapflights users on 2/20. 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.
Fri 6/205:05 pmONT - BIL
1 stop6h 11mDelta
Mon 6/235:45 amBIL - ONT
1 stop4h 13mDelta
Deal found 2/20$350
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 4/184:17 pmONT - BIL
1 stop5h 27mUnited Airlines
Sun 4/205:00 amBIL - ONT
2 stops10h 50mUnited Airlines
Deal found 2/20$440
This Hawaiian Airlines deal was found by Cheapflights users on 2/18. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/276:00 amONT - BIL
1 stop5h 49mHawaiian Airlines
Mon 3/31:29 pmBIL - ONT
1 stop5h 50mHawaiian Airlines
Deal found 2/18$682
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2010:05 amONT - BIL
2 stops10h 11mAmerican Airlines
Mon 2/245:00 amBIL - ONT
1 stop8h 07mAmerican Airlines
Deal found 2/19$788
This United deal was found by Cheapflights users on 2/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/271:44 pmONT - BIL
1 stop6h 09mMultiple Airlines
Mon 3/31:29 pmBIL - ONT
1 stop10h 55mMultiple Airlines
Deal found 2/18$1,195

Find flights from Ontario to Billings within your budget

Customize your flight search to find flights from Ontario to Billings 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

Ontario

Fly to

Billings

Route

Depart

Return

Price

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Fri 4/18

6:55 am-2:15 pm

1 stop6h 20m

Billings Logan Intl

Sun 4/20

2:55 pm-11:59 pm

1 stop10h 04m

$299

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Fri 4/18

4:17 pm-10:44 pm

1 stop5h 27m

Billings Logan Intl

Sun 4/20

5:00 am-2:50 pm

2 stops10h 50m

$440

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Fri 3/7

5:10 pm-12:31 am

1 stop6h 21m

Billings Logan Intl

Tue 3/11

6:26 pm-11:56 pm

1 stop6h 30m

$533

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Thu 2/27

6:00 am-12:49 pm

1 stop5h 49m

Billings Logan Intl

Mon 3/3

1:29 pm-6:19 pm

1 stop5h 50m

$682

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Thu 2/27

1:44 pm-8:53 pm

1 stop6h 09m

Billings Logan Intl

Mon 3/3

1:29 pm-11:24 pm

1 stop10h 55m

$1,195

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Fri 3/14

7:00 am-2:14 pm

1 stop6h 14m

$128

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Thu 3/13

6:00 am-10:54 am

1 stop3h 54m

$129

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Fri 2/28

7:00 am-2:14 pm

1 stop6h 14m

$341

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Fri 2/28

10:36 am-8:53 pm

2 stops9h 17m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Compare providers for flights from Ontario to Billings

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Billings in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

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

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

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Billings (average of $396). Flying from Ontario to Billings in June is currently the most expensive (average of $624). 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 time of day to fly from ONT to BIL?

Find hourly flight availability from Ontario to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

One of the essential ways to save on airfare from Ontario to Billings is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 31% on airfare.

Rainfall in Billings by month

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

In terms of precipitation, rainfall in Billings ranges from 0.5 - 2.2 inches per month. May is typically the wettest month, when rainfall can reach 2.2 in. January is typically the driest time to visit Billings when rainfall is around 0.5 in.

Temperature in Billings by month

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

If weather is an important factor for your trip to Billings, 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 26.6 F).

Reviews of airlines servicing Billings

Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated February 20, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Hawaiian Airlines from Ontario to Billings by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines
7.9
Good
2,317 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,766 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Ontario to Billings. 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 Ontario to Billings round-trip?

    Currently priced at $299, Alaska Airlines will fly you from Ontario to Billings and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $350 and $440, respectively. Alaska Airlines is currently priced 25% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Ontario to Billings are Alaska Airlines ($128), Delta ($129), and Hawaiian Airlines ($341).

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Ontario to Billings (average of $396). Flying from Ontario to Billings in June is currently the most expensive (average of $624). 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

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 Ontario to Billings

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Bozeman flights
San Francisco to Bozeman flights
Los Angeles to Kalispell flights
San Francisco to Kalispell flights
San Diego to Bozeman flights
Ontario to Bozeman flights
San Jose to Bozeman flights
San Francisco to Missoula flights
San Jose to Billings flights
Los Angeles to Missoula flights
Ontario to Kalispell flights
San Diego to Kalispell flights
Santa Ana to Kalispell flights
San Francisco to Billings flights
San Jose to Kalispell flights
Sacramento to Bozeman flights
Oakland to Bozeman flights
Sacramento to Kalispell flights
Santa Ana to Bozeman flights
San Jose to Missoula flights
Burbank to Bozeman flights
Las Vegas to Bozeman flights
San Francisco to Helena flights
Fresno to Bozeman flights
Ontario to Missoula flights
Santa Ana to Missoula flights
Burbank to Kalispell flights
Oakland to Helena flights
Oakland to Kalispell flights
Reno to Missoula flights
San Diego to Missoula flights
San Jose to Helena flights
Los Angeles to Billings flights
Sacramento to Missoula flights
Long Beach to Bozeman flights
Santa Barbara to Great Falls flights
Fresno to Kalispell flights
Santa Rosa to Kalispell flights
Sacramento to Helena flights
San Jose to Great Falls flights
Palm Springs to Bozeman flights
Las Vegas to Missoula flights
San Diego to Billings flights
Medford to Billings flights
San Luis Obispo to Bozeman flights
Fresno to Missoula flights
Oakland to Billings flights
Los Angeles to West Yellowstone flights
Burbank to Missoula flights

Top 3 airlines flying from Ontario to Billings

Discover the top 3 airlines that operate flights from Ontario to Billings. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$245Average$358FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$288Average$367FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$361Average$450FlexibilityNo cancel feeOn-time69%
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.