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$113+ Cheap flights from Nashville to Ontario (BNA - 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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ONT
Jun 8 — Jun 151
Sun 6/8
Sun 6/15
1 adult, Economy
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Cheapflights Tip: The best prices from Nashville Intl to Ontario are usually found in July or September, booked 22 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from Nashville to Ontario

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

Round-trip from

$231
(CheapOair)

One-way from

$113
(Cheapflightsfares)

Popular in

December

Cheapest in

July

Average price

$385

Good round-trip deal

$464 or less

Good one-way deal

$295 or less
From Nashville Intl to Ontario
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One-way flight from Nashville Intl to Ontario
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Highest demand for flights based on searches. 12% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Nashville Intl to Ontario.
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Price to beat on a one-way flight from Nashville Intl to Ontario.
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Find flight deals from Nashville to Ontario

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

This CheapOair deal was found by Cheapflights users on 6/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/146:40 pmBNA - ONT
1 stop7h 10mFrontier
Tue 6/1712:59 amONT - BNA
1 stop21h 00mFrontier
Deal found 6/2$231
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/104:19 pmBNA - ONT
1 stop9h 40mAlaska Airlines
Tue 7/156:58 pmONT - BNA
1 stop8h 42mAlaska Airlines
Deal found 6/2$256
This Delta deal was found by Cheapflights users on 6/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:25 amBNA - ONT
1 stop7h 59mDelta
Wed 11/511:29 amONT - BNA
1 stop10h 32mDelta
Deal found 6/1$257
This Hawaiian Airlines deal was found by Cheapflights users on 6/2. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:27 pmBNA - ONT
1 stop8h 26mHawaiian Airlines
Mon 9/2911:39 amONT - BNA
1 stop10h 29mHawaiian Airlines
Deal found 6/2$326
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Sat 10/46:33 amBNA - ONT
1 stop7h 40mUnited Airlines
Sat 10/117:02 amONT - BNA
1 stop6h 53mUnited Airlines
Deal found 6/2$347
This Southwest deal was found by Cheapflights users on 6/2. 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.
Fri 9/193:30 pmBNA - ONT
Nonstop4h 10mSouthwest
Tue 9/236:45 amONT - BNA
Nonstop4h 00mSouthwest
Deal found 6/2$391
This American Airlines deal was found by Cheapflights users on 6/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:00 amBNA - ONT
2 stops8h 57mAmerican Airlines
Thu 10/912:51 pmONT - BNA
1 stop6h 31mAmerican Airlines
Deal found 6/2$419

Cheapflights Fare Finder

Customize your flight search to find flights from Nashville 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 June 3, 2025.
Use the filters below to find and compare flights from Nashville to Ontario that are best for you.

Fly from

Nashville

Fly to

Ontario

Route

Depart

Return

Price

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Sat 6/14

6:40 pm-11:50 pm

1 stop7h 10m

Ontario

Tue 6/17

12:59 am-11:59 pm

1 stop21h 00m

$231

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 7/10

4:19 pm-11:59 pm

1 stop9h 40m

Ontario

Tue 7/15

6:58 pm-5:40 am

1 stop8h 42m

$256

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Tue 10/28

5:25 am-11:24 am

1 stop7h 59m

Ontario

Wed 11/5

11:29 am-12:01 am

1 stop10h 32m

$257

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 9/25

5:27 pm-11:53 pm

1 stop8h 26m

Ontario

Mon 9/29

11:39 am-12:08 am

1 stop10h 29m

$326

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Sat 10/4

12:50 pm-6:06 pm

1 stop7h 16m

Ontario

Sat 10/11

7:02 am-3:55 pm

1 stop6h 53m

$347

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 9/19

3:30 pm-5:40 pm

Nonstop4h 10m

Ontario

Tue 9/23

6:45 am-12:45 pm

Nonstop4h 00m

$391

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Sat 10/4

5:00 am-11:57 am

2 stops8h 57m

Ontario

Thu 10/9

12:51 pm-9:22 pm

1 stop6h 31m

$419

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Mon 7/14

10:55 am-8:54 pm

2 stops11h 59m

Ontario

Wed 7/23

6:58 pm-5:40 am

1 stop8h 42m

$599

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Sat 6/14

6:40 pm-11:50 pm

1 stop7h 10m

$113

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 10/3

5:27 pm-11:53 pm

1 stop8h 26m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Showing 1-10 of 15 results
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Best time to book a flight from Nashville to Ontario

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

Cheapflights Insights

Everything you need to know about your flight from Nashville to Ontario

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

Use this chart to determine the optimal time to book a round-trip flight from Nashville to Ontario. Price data was last updated on May 23, 2025.

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Nashville to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Nashville to Ontario (average of $246). Flying from Nashville to Ontario in March is currently the most expensive (average of $328). 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 BNA to ONT?

Find hourly flight availability from Nashville 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 June 3, 2025.

When flying from Nashville to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 32% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Nashville to Ontario. Price data was last updated on June 1, 2025.

Travelers seeking maximum savings on their Nashville to Ontario flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday afternoons 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 June 3, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Nashville to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,284 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,956 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,478 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,770 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • How popular is this Nashville to Ontario flight route?

    Flights from Nashville Intl to Ontario have been viewed 2 times in the past calendar month.

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

    Currently priced at $231, Frontier will fly you from Nashville to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Delta - these airlines can fly you to your destination from $256 and $257, respectively. Frontier is currently priced 41% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $113. Users have also found prices from $128 and $129 on Hawaiian Airlines and Delta, respectively.

  • What are the cheapest flights from Nashville to Ontario?

    While on average a flight from Nashville to Ontario is generally $425, our data shows the cheapest flight currently is $255. When looking at the most popular route, (Nashville Intl - Ontario), you can expect to pay $241 for that flight.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Nashville to Ontario (average of $246). Flying from Nashville to Ontario in March is currently the most expensive (average of $328). 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 6 airlines flying from Nashville to Ontario

Discover the top 6 airlines that operate flights from Nashville 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 June 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$250FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$108Average$178FlexibilityNo cancel feeOn-time65%
DeltaCheapest$236Average$346FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$261Average$395FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$393FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$313Average$479FlexibilityNo cancel feeOn-time63%

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