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$74+ Cheap flights from Ontario (ONT) to Tennessee

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BNA
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Cheap flight deals from Ontario to Tennessee

Cheapest flights from Ontario to Tennessee
Explore the most affordable flight options available from Ontario to Tennessee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:45 amONT - BNA
1 stop9h 22mFrontier
Wed 12/317:02 pmBNA - ONT
1 stop6h 57mFrontier
Deal found 12/8$258
This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:45 amONT - BNA
1 stop9h 22mFrontier
Fri 1/27:02 pmBNA - ONT
1 stop6h 57mFrontier
Deal found 12/8$268
This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:45 amONT - BNA
1 stop9h 22mFrontier
Sat 1/31:30 pmBNA - ONT
1 stop12h 29mFrontier
Deal found 12/8$283
This CheapOair deal was found by Cheapflights users on 12/7. 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 12/206:45 amONT - BNA
1 stop9h 22mFrontier
Mon 1/57:02 pmBNA - ONT
1 stop29h 10mFrontier
Deal found 12/7$313
This Priceline deal was found by Cheapflights users on 12/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:45 amONT - MEM
1 stop10h 27mFrontier
Thu 12/258:07 pmMEM - ONT
1 stop5h 52mFrontier
Deal found 12/7$324
This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:45 amONT - BNA
1 stop9h 22mFrontier
Wed 12/317:02 pmBNA - ONT
1 stop6h 57mFrontier
Deal found 12/8$328
This Frontier deal was found by Cheapflights users on 12/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:45 amONT - MEM
1 stop10h 27mFrontier
Sun 12/218:07 pmMEM - ONT
1 stop5h 52mFrontier
Deal found 12/7$333
This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:45 amONT - BNA
1 stop9h 22mFrontier
Fri 1/27:02 pmBNA - ONT
1 stop6h 57mFrontier
Deal found 12/8$338
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Sun 12/2811:59 pmONT - BNA
1 stop6h 56mAmerican Airlines
Thu 1/85:00 pmBNA - ONT
1 stop7h 13mAmerican Airlines
Deal found 12/7$342
This Booking.com deal was found by Cheapflights users on 12/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/144:01 pmONT - MEM
1 stop21h 32mFrontier
Thu 12/188:07 pmMEM - ONT
1 stop5h 52mFrontier
Deal found 12/8$347
This Frontier deal was found by Cheapflights users on 12/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:45 amONT - BNA
1 stop9h 22mFrontier
Sat 1/31:30 pmBNA - ONT
1 stop12h 29mFrontier
Deal found 12/8$353
This United Airlines deal was found by Cheapflights users on 12/7. 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.
Tue 12/306:39 pmONT - BNA
1 stop9h 47mUnited Airlines
Mon 1/54:56 pmBNA - ONT
1 stop7h 29mUnited Airlines
Deal found 12/7$357

Find flight deals from Ontario to Tennessee

Keep the following information in mind while searching for Ontario to Tennessee flight deals. Data was last updated December 9, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$148
(Frontier)

One-way from

$74
(Frontier)

Popular in

March

Cheapest in

September

Average price

$408

Good round-trip deal

$531 or less

Good one-way deal

$258 or less
Provider with most accurate pricing for Los Angeles-Nashville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Nashville Intl flights.
Search Deals
From Ontario to Tennessee
Search Deals
One-way flight from Ontario to Tennessee
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Ontario to Tennessee.
Search Deals
Price to beat on a one-way flight from Ontario to Tennessee.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Tennessee 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 December 9, 2025.
Use the filters below to find and compare flights from Ontario to Tennessee that are best for you.

Fly from

Ontario

Fly to

Tennessee

Route

Depart

Return

Price

OntarioMemphis

ONT - MEM

ONTMEM

Ontario

Fri 2/6

6:20 am-2:17 pm

1 stop5h 57m

Memphis

Sun 2/8

3:12 pm-12:20 am

1 stop11h 08m

$200

OntarioMemphis

ONT - MEM

ONTMEM

Ontario

Mon 1/12

6:00 am-2:04 pm

1 stop6h 04m

Memphis

Sun 1/18

8:06 pm-11:59 pm

1 stop5h 53m

$217

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Thu 2/19

6:00 am-4:40 pm

1 stop7h 40m

Knoxville McGhee Tyson

Sun 2/22

5:35 pm-11:59 pm

1 stop9h 24m

$217

OntarioMemphis

ONT - MEM

ONTMEM

Ontario

Fri 1/23

6:20 am-2:17 pm

1 stop5h 57m

Memphis

Sun 1/25

3:12 pm-12:20 am

1 stop11h 08m

$252

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Wed 3/25

11:59 am-11:56 pm

1 stop9h 57m

Nashville Intl

Wed 4/8

5:25 am-11:35 am

1 stop8h 10m

$285

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Sat 1/10

1:11 pm-10:30 pm

1 stop7h 19m

Nashville Intl

Sat 1/17

7:15 am-12:16 pm

1 stop7h 01m

$285

OntarioChattanooga

ONT - CHA

ONTCHA

Ontario

Thu 1/8

10:30 pm-9:03 am

1 stop7h 33m

Chattanooga Lovell Field

Wed 1/14

5:30 am-11:31 am

1 stop9h 01m

$289

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Wed 2/18

5:00 am-7:01 pm

2 stops12h 01m

Nashville Intl

Mon 2/23

6:20 am-12:38 pm

1 stop8h 18m

$290

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Mon 4/27

6:53 pm-5:39 am

1 stop8h 46m

Nashville Intl

Fri 5/1

9:48 am-9:01 pm

2 stops13h 13m

$290

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Wed 2/11

5:05 am-7:04 pm

2 stops11h 59m

Nashville Intl

Sun 2/15

6:20 am-12:38 pm

1 stop8h 18m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Tennessee

Have a flexible travel schedule? Discover the best time to fly to Tennessee 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.

Cheapflights Insights

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

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

Currently, March is the cheapest month in which you can book a flight from Ontario to Tennessee (average of $76). Flying from Ontario to Tennessee in February is currently the most expensive (average of $190). 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 TN?

Find hourly flight availability from Ontario to Tennessee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 9, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from Ontario to Tennessee by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Tennessee. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Ontario to Tennessee flight should consider departing on Sunday afternoons 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.

Reviews of airlines servicing Tennessee

Get insights into the airlines that provide service to Tennessee. 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 Tennessee. Reviews last updated December 9, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Ontario to Tennessee by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,011 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,089 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,045 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,085 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

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

  • What airport do you fly from for flights from Ontario to Tennessee?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Tennessee.

  • How popular is this Ontario to Tennessee flight route?

    Flights from Ontario to Tennessee have been viewed 9 times in the past calendar month.

  • How long is the flight from Ontario to Tennessee?

    A quick flight from Ontario to Tennessee can take about 5h 57m. Frontier provides one of the quickest options available for as low as $200. Airlines will cover a distance of 1567 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $78 on Frontier. Other airlines that offer cheap prices include Alaska Airlines from $103 and American Airlines from $128 one-way.

  • What are the most popular routes from Ontario to Tennessee?

    When deciding which route to take from Ontario to Tennessee consider Ontario - Nashville Intl, Ontario - Memphis or Ontario - Knoxville McGhee Tyson as they are the most popular.

  • What are the cheapest flights from Ontario to Tennessee?

    Looking for the cheapest flight from Ontario to Tennessee? While on average our users pay $439, our data indicates the cheapest price to be $168. The most popular route (Ontario - Nashville Intl), is priced around $149.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Ontario to Tennessee (average of $76). Flying from Ontario to Tennessee in February is currently the most expensive (average of $190). 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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Alternative routes for Ontario to Tennessee

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Ontario to Tennessee

Discover the top 7 airlines that operate flights from Ontario to Tennessee. 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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$98Average$196FlexibilityNo cancel feeOn-time65%
FrontierCheapest$130Average$226FlexibilityNo cancel feeOn-time62%
DeltaCheapest$239Average$400FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$435FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$264Average$418FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$278Average$316FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$336Average$470FlexibilityNo cancel feeOn-time63%

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