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$128+ Cheap flights from Boise to Ontario (BOI - 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — ONT
Feb 8 — Feb 151
Sat 2/8
Sat 2/15
1 adult, Economy
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The best prices from Boise Air Term. Gowen Fld to Ontario are usually found in February or September, booked 36 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Boise to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(Alaska Airlines)

One-way from

$128
(Alaska Airlines)

Popular in

November

Cheapest in

February

Average price

$298
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Ontario flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Ontario flights.
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From Boise Air Term. Gowen Fld to Ontario
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One-way flight from Boise Air Term. Gowen Fld to Ontario
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Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 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 Boise to Ontario

Cheapest flights from Boise to Ontario
Explore the most affordable flight options available from Boise to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2025.

This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 2/282:46 pmBOI - ONT
1 stop9h 38mAlaska Airlines
Mon 3/37:00 amONT - BOI
1 stop6h 43mAlaska Airlines
Deal found 2/1$256
This Delta deal was found by Cheapflights users on 2/3. 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.
Tue 4/110:50 amBOI - ONT
1 stop6h 52mDelta
Fri 4/411:42 amONT - BOI
1 stop7h 50mDelta
Deal found 2/3$257
This Southwest deal was found by Cheapflights users on 2/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2212:30 pmBOI - ONT
2 stops8h 40mSouthwest
Fri 4/253:15 pmONT - BOI
1 stop7h 15mSouthwest
Deal found 2/2$262
This United Airlines deal was found by Cheapflights users on 2/2. 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 9/1812:00 pmBOI - ONT
1 stop4h 46mUnited Airlines
Sat 9/275:45 amONT - BOI
1 stop6h 45mUnited Airlines
Deal found 2/2$400

Find flights from Boise to Ontario within your budget

Customize your flight search to find flights from Boise 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 3, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Fri 2/28

2:46 pm-11:24 pm

1 stop9h 38m

Ontario

Mon 3/3

7:00 am-2:43 pm

1 stop6h 43m

$256

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 4/1

10:50 am-4:42 pm

1 stop6h 52m

Ontario

Fri 4/4

11:42 am-8:32 pm

1 stop7h 50m

$257

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 4/22

12:30 pm-8:10 pm

2 stops8h 40m

Ontario

Fri 4/25

3:15 pm-11:30 pm

1 stop7h 15m

$262

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Thu 2/20

7:00 am-12:42 pm

1 stop6h 42m

Ontario

Mon 2/24

3:30 pm-9:59 pm

1 stop5h 29m

$477

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 3/8

2:46 pm-8:17 pm

1 stop6h 31m

$128

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Mon 2/24

5:59 pm-11:51 pm

1 stop6h 52m

$129

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 2/19

1:56 pm-6:26 pm

1 stop5h 30m

$151

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 4/12

2:00 pm-5:56 pm

1 stop4h 56m

$164

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Mon 3/3

3:55 pm-10:30 pm

2 stops7h 35m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Compare providers for flights from Boise to Ontario

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 Boise to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 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 Boise-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-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 Boise-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 Boise to Ontario

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

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

How far ahead should I book a flight from Boise to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Ontario. Price data was last updated on January 31, 2025.

The best time to book flights from Boise to Ontario is 36 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Boise to Ontario (average of $246). Flying from Boise 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.

What is the cheapest time of day to fly from BOI to ONT?

Find hourly flight availability from Boise to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 17% on flights from Boise to Ontario by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Boise to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Boise to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boise to Ontario flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 3, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Boise to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,570 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,570 reviews
Southwest
8.1
Very good
4,570 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,681 reviews
Southwest
8.1
Very good
4,570 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,415 reviews
Southwest
8.1
Very good
4,570 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,892 reviews
Southwest
8.1
Very good
4,570 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,570 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

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

    According to our current data, Alaska Airlines ($256), Delta ($257), and Southwest ($262) offers the cheapest pricing from Boise to Ontario. Alaska Airlines is 24% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from Boise to Ontario are Alaska Airlines ($128), Delta ($129), and American Airlines ($151).

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Boise to Ontario (average of $246). Flying from Boise 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.

See more FAQs

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Top 5 airlines flying from Boise to Ontario

Discover the top 5 airlines that operate flights from Boise to Ontario. 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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$115Average$186FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$214Average$315FlexibilityNo cancel feeOn-time75%
DeltaCheapest$219Average$318FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$233Average$366FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$240Average$350FlexibilityNo cancel feeOn-time63%
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