How popular is this Nashville to Ontario flight route?

Flights from Nashville Intl to Ontario have been viewed 1 times in the past calendar month.

How long is the flight from Nashville to Ontario?

Departing from Nashville to Ontario will take you 6h 43m. There are 1745 mi between Nashville and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

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

Currently priced at $128, 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 Delta and American Airlines - these airlines can fly you to your destination from $192 and $258, respectively. Frontier is currently priced 67% 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 $55. Users have also found prices from $112 and $128 on United Airlines and American Airlines, respectively.

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.

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).

What are the cheapest flights from Nashville to Ontario?

While on average a flight from Nashville to Ontario is generally $348, our data shows the cheapest flight currently is $124. When looking at the most popular route, (Nashville Intl - Ontario), you can expect to pay $182 for that flight.

What are the most popular airlines that fly from Nashville to Ontario?

American Airlines, Southwest and Delta are the most popular airlines when flying from Nashville to Ontario.

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

Most trusted provider : When it comes to deals on Nashville-Ontario flights, Cheapflights users trust CheapOair the most. CheapOair 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 Nashville-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airports do I use to fly from Nashville to Ontario?

If you wish to fly to Ontario from Nashville, then you need to book flights from Nashville Intl to Ontario. There is 1 flight from Nashville Intl (BNA) to Ontario (ONT) per day to choose from. Flights to Ontario from Nashville Intl are available from 5 different airlines, which means you should have some options if you want to compare airfare deals. 4h 25m is how long a nonstop flight from Nashville to Ontario typically takes.

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.

$85+ Flights from Nashville to Ontario

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

Find cheap flights from Nashville to Ontario 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.

Cheapflights Tip: The best prices from Nashville Intl to Ontario are usually found in August or November, booked 42 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap 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 December 23, 2025.

Wed 12/317:02 pmBNA - ONT

1 stop6h 57mFrontier

Mon 1/56:45 amONT - BNA

1 stop9h 22mFrontier

Deal found 12/21

$384

Wed 12/247:02 pmBNA - ONT

1 stop6h 57mFrontier

Wed 12/316:45 amONT - BNA

1 stop9h 22mFrontier

Deal found 12/22

$483

Fri 12/267:02 pmBNA - ONT

1 stop6h 57mFrontier

Sat 12/276:45 amONT - BNA

1 stop8h 45mFrontier

Deal found 12/22

$485

Mon 12/226:14 pmBNA - ONT

1 stop7h 09mDelta

Tue 1/612:41 pmONT - BNA

2 stops29h 26mDelta

Deal found 12/22

$489

Wed 12/247:02 pmBNA - ONT

1 stop6h 57mFrontier

Mon 1/56:45 amONT - BNA

1 stop9h 22mFrontier

Deal found 12/22

$542

Tue 12/232:40 pmBNA - ONT

1 stop7h 10mDelta

Mon 1/510:30 pmONT - BNA

2 stops15h 09mDelta

Deal found 12/22

$547

Thu 12/2510:55 amBNA - ONT

2 stops13h 38mDelta

Mon 1/510:30 pmONT - BNA

2 stops18h 24mDelta

Deal found 12/22

$552

Mon 12/295:15 amBNA - ONT

1 stop6h 45mDelta

Tue 1/66:00 amONT - BNA

1 stop6h 07mDelta

Deal found 12/22

$563

Sun 12/287:08 pmBNA - ONT

1 stop6h 46mDelta

Mon 1/510:30 pmONT - BNA

2 stops15h 09mDelta

Deal found 12/22

$567

Sat 12/277:25 pmBNA - ONT

1 stop6h 21mAmerican Airlines

Sat 1/109:59 amONT - BNA

2 stops8h 08mAmerican Airlines

Deal found 12/22

$568

Tue 12/2310:35 amBNA - ONT

2 stops14h 48mDelta

Tue 1/65:07 pmONT - BNA

2 stops13h 39mDelta

Deal found 12/22

$573

Best flights from Nashville to Ontario
Discover carefully curated flight deals from Nashville to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Fri 1/307:37 pmBNA - ONT

1 stop6h 43mFrontier

Mon 2/26:20 amONT - BNA

1 stop10h 22mFrontier

Deal found 12/22

$217

Fri 1/237:00 amBNA - ONT

1 stop18h 56mAlaska Airlines

Sun 1/256:00 amONT - BNA

1 stop15h 57mAlaska Airlines

Deal found 12/22

$246

Mon 1/267:37 pmBNA - ONT

1 stop6h 43mFrontier

Fri 1/306:20 amONT - BNA

1 stop10h 25mFrontier

Deal found 12/21

$217

Fri 1/307:00 amBNA - ONT

1 stop18h 56mAlaska Airlines

Sat 2/74:03 pmONT - BNA

1 stop29h 54mAlaska Airlines

Deal found 12/20

$246

Thu 2/267:00 amBNA - ONT

1 stop18h 32mAlaska Airlines

Tue 3/36:14 amONT - BNA

1 stop15h 45mAlaska Airlines

Deal found 12/21

$246

Wed 1/287:00 amBNA - ONT

1 stop10h 08mAlaska Airlines

Fri 2/64:03 pmONT - BNA

1 stop21h 18mAlaska Airlines

Deal found 12/20

$246

Fri 1/307:00 amBNA - ONT

1 stop18h 56mAlaska Airlines

Sat 1/314:03 pmONT - BNA

1 stop29h 54mAlaska Airlines

Deal found 12/22

$246

Sat 1/247:00 amBNA - ONT

1 stop15h 36mAlaska Airlines

Wed 1/284:03 pmONT - BNA

1 stop29h 54mAlaska Airlines

Deal found 12/22

$246

Thu 1/297:00 amBNA - ONT

1 stop18h 56mAlaska Airlines

Wed 2/44:03 pmONT - BNA

1 stop29h 54mAlaska Airlines

Deal found 12/20

$246

Fri 1/307:00 amBNA - ONT

1 stop18h 56mAlaska Airlines

Sun 2/16:00 amONT - BNA

1 stop15h 57mAlaska Airlines

Deal found 12/22

$246

Wed 2/47:00 amBNA - ONT

1 stop10h 08mAlaska Airlines

Mon 2/96:00 amONT - BNA

1 stop15h 57mAlaska Airlines

Deal found 12/22

$246

Sat 1/317:00 amBNA - ONT

1 stop15h 36mAlaska Airlines

Wed 2/44:03 pmONT - BNA

1 stop29h 54mAlaska Airlines

Deal found 12/20

$246

Last-minute flights from Nashville to Ontario
Discover last-minute flight deals from Nashville to Ontario. Data last updated December 23, 2025 and is based on user searches.

Thu 1/87:31 pmBNA - ONT

1 stop6h 25mFrontier

Mon 1/126:00 amONT - BNA

1 stop10h 36mFrontier

Deal found 12/22

$182

Fri 1/97:31 pmBNA - ONT

1 stop6h 25mFrontier

Mon 1/126:00 amONT - BNA

1 stop10h 36mFrontier

Deal found 12/22

$218

Mon 1/127:31 pmBNA - ONT

1 stop29h 28mMultiple Airlines

Mon 1/192:34 pmONT - BNA

1 stop12h 49mMultiple Airlines

Deal found 12/21

$226

Thu 1/158:43 pmBNA - ONT

1 stop12h 54mMultiple Airlines

Mon 1/192:34 pmONT - BNA

1 stop12h 49mMultiple Airlines

Deal found 12/22

$223

Fri 1/168:43 pmBNA - ONT

1 stop25h 07mMultiple Airlines

Sun 1/182:34 pmONT - BNA

1 stop12h 49mMultiple Airlines

Deal found 12/21

$213

Sat 1/178:40 amBNA - ONT

2 stops31h 08mMultiple Airlines

Sat 1/247:35 pmONT - BNA

1 stop7h 48mMultiple Airlines

Deal found 12/20

$196

Thu 1/227:37 pmBNA - ONT

1 stop6h 43mFrontier

Mon 1/266:20 amONT - BNA

1 stop10h 22mFrontier

Deal found 12/21

$183

Fri 1/237:37 pmBNA - ONT

1 stop29h 47mFrontier

Mon 1/266:20 amONT - BNA

1 stop10h 22mFrontier

Deal found 12/22

$175

Fri 1/238:43 pmBNA - ONT

2 stops28h 41mMultiple Airlines

Mon 1/266:20 amONT - BNA

1 stop10h 22mMultiple Airlines

Deal found 12/21

$231

Thu 1/297:37 pmBNA - ONT

1 stop6h 43mFrontier

Mon 2/96:20 amONT - BNA

1 stop10h 22mFrontier

Deal found 12/20

$203

Fri 1/307:37 pmBNA - ONT

1 stop6h 43mFrontier

Mon 2/26:20 amONT - BNA

1 stop10h 22mFrontier

Deal found 12/22

$217

One-way flights from Nashville to Ontario
Search for one-way flight options from Nashville to Ontario. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Fri 1/237:37 pmBNA - ONT

1 stop29h 47mFrontier

Deal found 12/23

$85

Tue 2/38:43 pmBNA - ONT

1 stop19h 29mMultiple Airlines

Deal found 12/22

$90

Thu 1/227:37 pmBNA - ONT

1 stop6h 43mFrontier

Deal found 12/21

$91

Mon 1/267:37 pmBNA - ONT

1 stop6h 43mFrontier

Deal found 12/22

$92

Mon 1/57:02 pmBNA - ONT

1 stop29h 10mFrontier

Deal found 12/22

$97

Wed 2/188:45 pmBNA - ONT

1 stop23h 42mMultiple Airlines

Deal found 12/22

$98

Sat 1/2411:30 amBNA - ONT

2 stops13h 54mFrontier

Deal found 12/23

$100

Mon 1/128:43 pmBNA - ONT

1 stop23h 11mMultiple Airlines

Deal found 12/21

$101

Thu 2/58:43 pmBNA - ONT

1 stop25h 10mMultiple Airlines

Deal found 12/20

$102

Sun 1/118:43 pmBNA - ONT

1 stop20h 08mMultiple Airlines

Deal found 12/21

$103

Sat 1/178:43 pmBNA - ONT

1 stop20h 56mMultiple Airlines

Deal found 12/22

$106

Mon 1/197:27 pmBNA - ONT

1 stop21h 40mFrontier

Deal found 12/23

$107

Find flight deals from Nashville to Ontario

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$175 (Kiwi.com)
One-way from	$85 (Kiwi.com)
Popular in	October
Cheapest in	August
Average price	$447
Good one-way deal	$159 or less

Provider with most accurate pricing for Nashville Intl-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for Nashville Intl-Ontario flights.

Search Deals

From Nashville Intl to Ontario

Search Deals

One-way flight from Nashville Intl to Ontario

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($34 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a one-way flight from Nashville Intl to Ontario.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 1/30

7:37 pm-12:20 am

1 stop6h 43m

Ontario

Mon 2/2

6:20 am-6:42 pm

1 stop10h 22m

$217

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Mon 1/26

7:37 pm-12:20 am

1 stop6h 43m

Ontario

Fri 1/30

6:20 am-6:45 pm

1 stop10h 25m

$217

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 1/23

7:00 am-11:56 pm

1 stop18h 56m

Ontario

Sun 1/25

6:00 am-11:57 pm

1 stop15h 57m

$246

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 1/30

7:00 am-11:56 pm

1 stop18h 56m

Ontario

Sat 2/7

4:03 pm-11:57 pm

1 stop29h 54m

$246

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 2/26

7:00 am-11:32 pm

1 stop18h 32m

Ontario

Tue 3/3

6:14 am-11:59 pm

1 stop15h 45m

$246

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Wed 1/28

7:00 am-3:08 pm

1 stop10h 08m

Ontario

Fri 2/6

4:03 pm-3:21 pm

1 stop21h 18m

$246

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 1/30

7:00 am-11:56 pm

1 stop18h 56m

Ontario

Sat 1/31

4:03 pm-11:57 pm

1 stop29h 54m

$246

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Sat 1/24

7:00 am-8:36 pm

1 stop15h 36m

Ontario

Wed 1/28

4:03 pm-11:57 pm

1 stop29h 54m

$246

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 1/29

7:00 am-11:56 pm

1 stop18h 56m

Ontario

Wed 2/4

4:03 pm-11:57 pm

1 stop29h 54m

$246

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 1/30

7:00 am-11:56 pm

1 stop18h 56m

Ontario

Sun 2/1

6:00 am-11:57 pm

1 stop15h 57m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 22 results

Compare providers for flights from Nashville to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Nashville to Ontario in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapOair	Price Accuracy3 stars	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 Nashville-Ontario flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Nashville-Ontario flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Nashville-Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Nashville-Ontario flights, Cheapflights users trust CheapOair the most. CheapOair 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 Nashville-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 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?

Booking 42 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 $73). Flying from Nashville to Ontario in February is currently the most expensive (average of $202). 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?

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?

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

The best insider tips for Nashville to Ontario flights

Cheapflights partnered with top experts to bring you the best recommendations for your Nashville to Ontario trip

Airports

BNA

For self-parking, Terminal Garage 1 and 2 are closest to the terminal, offering a flat daily rate.

ONT

Consider renting a car at ONT for easy access to Southern California destinations like Palm Springs and Big Bear.

Our travel experts

Bill Fink

Expert on ONT

Mark Chesnut

Expert on BNA

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines 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.

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,253 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

8,014 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

9,105 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,054 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,075 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

What airports do I use to fly from Nashville to Ontario?
If you wish to fly to Ontario from Nashville, then you need to book flights from Nashville Intl to Ontario. There is 1 flight from Nashville Intl (BNA) to Ontario (ONT) per day to choose from. Flights to Ontario from Nashville Intl are available from 5 different airlines, which means you should have some options if you want to compare airfare deals. 4h 25m is how long a nonstop flight from Nashville to Ontario typically takes.
How popular is this Nashville to Ontario flight route?
Flights from Nashville Intl to Ontario have been viewed 1 times in the past calendar month.
How long is the flight from Nashville to Ontario?
Departing from Nashville to Ontario will take you 6h 43m. There are 1745 mi between Nashville and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Nashville to Ontario round-trip?
Currently priced at $128, 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 Delta and American Airlines - these airlines can fly you to your destination from $192 and $258, respectively. Frontier is currently priced 67% 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 $55. Users have also found prices from $112 and $128 on United Airlines and American Airlines, respectively.
What are the cheapest flights from Nashville to Ontario?
While on average a flight from Nashville to Ontario is generally $348, our data shows the cheapest flight currently is $124. When looking at the most popular route, (Nashville Intl - Ontario), you can expect to pay $182 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 $73). Flying from Nashville to Ontario in February is currently the most expensive (average of $202). 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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Other flights to Ontario

Top 5 airlines flying from Nashville to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$145	Average$252	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$192	Average$315	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$258	Average$380	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$284	Average$374	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$358	Average$516	FlexibilityNo cancel fee	On-time63%

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$85+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Nashville to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Nashville Intl to Ontario are usually found in August or November, booked 42 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Nashville to Ontario

Cheapest flights from Nashville to OntarioExplore 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 December 23, 2025.

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 December 23, 2025.

Find flight deals from Nashville to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

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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.

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Best time to book a flight from Nashville to Ontario

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

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The best insider tips for Nashville to Ontario flights

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Airports

BNA

ONT

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Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines 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.

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.

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

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Alternative routes for Nashville to Ontario

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Top 5 airlines flying from Nashville to Ontario

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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 December 23, 2025.