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$107+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ONT
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Nashville Intl to Ontario are usually found in September or August, booked 68 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 July 31, 2025.

Round-trip from

$236
(Cheapflightsfares)

One-way from

$107
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$333

Good one-way deal

$214 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. 11% potential increase in price ($52 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 July 2025
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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 July 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/117:27 pmBNA - ONT
1 stop6h 23mFrontier
Fri 8/225:09 pmONT - BNA
1 stop5h 47mFrontier
Deal found 7/29$236
This SmartFares deal was found by Cheapflights users on 7/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/285:27 pmBNA - ONT
1 stop8h 26mHawaiian Airlines
Wed 9/311:39 amONT - BNA
1 stop10h 29mHawaiian Airlines
Deal found 7/31$252
This Delta deal was found by Cheapflights users on 7/30. 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.
Thu 9/45:15 amBNA - ONT
1 stop7h 20mDelta
Thu 9/116:00 amONT - BNA
1 stop5h 42mDelta
Deal found 7/30$263
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Tue 8/269:00 amBNA - ONT
1 stop11h 28mAlaska Airlines
Sun 8/317:22 pmONT - BNA
1 stop8h 18mAlaska Airlines
Deal found 7/31$291
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/266:00 amBNA - ONT
2 stops7h 32mAmerican Airlines
Tue 9/212:22 pmONT - BNA
2 stops8h 53mAmerican Airlines
Deal found 7/29$302
This Southwest deal was found by Cheapflights users on 7/30. 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.
Wed 8/274:15 pmBNA - ONT
Nonstop4h 10mSouthwest
Wed 9/36:45 amONT - BNA
Nonstop4h 00mSouthwest
Deal found 7/30$317

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 July 31, 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

Mon 8/11

7:27 pm-11:50 pm

1 stop6h 23m

Ontario

Fri 8/22

5:09 pm-12:56 am

1 stop5h 47m

$236

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 8/28

5:27 pm-11:53 pm

1 stop8h 26m

Ontario

Wed 9/3

11:39 am-12:08 am

1 stop10h 29m

$252

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 9/4

5:15 am-10:35 am

1 stop7h 20m

Ontario

Thu 9/11

6:00 am-1:42 pm

1 stop5h 42m

$263

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Tue 8/26

9:00 am-6:28 pm

1 stop11h 28m

Ontario

Sun 8/31

7:22 pm-5:40 am

1 stop8h 18m

$291

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Tue 8/26

6:00 am-11:32 am

2 stops7h 32m

Ontario

Tue 9/2

12:22 pm-11:15 pm

2 stops8h 53m

$302

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Wed 8/27

4:15 pm-6:25 pm

Nonstop4h 10m

Ontario

Wed 9/3

6:45 am-12:45 pm

Nonstop4h 00m

$317

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Tue 8/26

2:57 pm-9:25 pm

1 stop8h 28m

Ontario

Tue 9/2

7:00 am-3:55 pm

1 stop6h 55m

$355

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Tue 9/9

3:26 pm-9:56 pm

1 stop8h 30m

$107

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 8/7

7:27 pm-11:50 pm

1 stop6h 23m

$117

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Sun 8/31

5:27 pm-11:53 pm

1 stop8h 26m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 16 results
1
2

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 July 25, 2025.

Booking 68 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 July 31, 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 33% 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 July 27, 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. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from Nashville to Ontario?

Share of 1-stop round-trip flights from Nashville to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.

Phoenix (PHX) – chosen by Cheapflights users on 50% of 1-stop itineraries from Nashville to Ontario on Cheapflights.

What’s the cheapest layover airport for flights from Nashville to Ontario?

Average round-trip fare for 1-stop flights from Nashville to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Phoenix (PHX) is the most affordable 1-stop option, with an average round-trip price of $323.

What’s the fastest layover option from Nashville to Ontario?

Shortest average travel time for 1-stop one-way flights from Nashville to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 6h 20m.

Which airport typically offers the quickest layover for flights from Nashville to Ontario?

Average layover duration for 1-stop one-way flights from Nashville to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 13m.

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 July 31, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Nashville to Ontario 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
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

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 $236, 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 Hawaiian Airlines and Delta - these airlines can fly you to your destination from $252 and $263, respectively. Frontier is currently priced 40% 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 $117. Users have also found prices from $132 and $133 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 $276, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Nashville Intl - Ontario), you can expect to pay $249 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 5 airlines flying from Nashville to Ontario

Discover the top 5 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$252FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$337FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$259Average$390FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$393FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$315Average$486FlexibilityNo cancel feeOn-time63%

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