HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$56+ Cheap flights from Tennessee to Ontario (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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — ONT
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Tennessee 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.

Cheap flight deals from Tennessee to Ontario

Keep the following information in mind while searching for Tennessee to Ontario flight deals. Data was last updated June 26, 2025.

Round-trip from

$66
(CheapOair)

One-way from

$56
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$351

Good round-trip deal

$511 or less

Good one-way deal

$438 or less
From Tennessee to Ontario
Search Deals
One-way flight from Tennessee to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Tennessee to Ontario.
Search Deals
Price to beat on a one-way flight from Tennessee to Ontario.
Search Deals

Find flight deals from Tennessee to Ontario

Cheapest flights from Tennessee to Ontario
Explore the most affordable flight options available from Tennessee to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

This Frontier deal was found by Cheapflights users on 6/26. 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.
Mon 8/117:27 pmBNA - ONT
1 stop6h 23mFrontier
Thu 8/215:09 pmONT - BNA
1 stop5h 47mFrontier
Deal found 6/26$115
This Booking.com deal was found by Cheapflights users on 6/26. 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.
Thu 7/247:48 pmMEM - ONT
1 stop6h 02mFrontier
Wed 7/3012:59 amONT - MEM
1 stop15h 49mFrontier
Deal found 6/26$205
This Trip.com deal was found by Cheapflights users on 6/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/297:00 amMEM - ONT
1 stop11h 20mMultiple Airlines
Sat 8/25:21 pmONT - MEM
1 stop23h 27mMultiple Airlines
Deal found 6/26$244
This Orbitz deal was found by Cheapflights users on 6/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:00 amBNA - ONT
2 stops11h 20mMultiple Airlines
Mon 8/1812:00 pmONT - BNA
1 stop9h 59mMultiple Airlines
Deal found 6/26$261
This Alaska Airlines deal was found by Cheapflights users on 6/26. 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 8/75:44 pmBNA - ONT
1 stop8h 31mAlaska Airlines
Mon 8/114:00 pmONT - BNA
1 stop11h 40mAlaska Airlines
Deal found 6/26$264
This Delta deal was found by Cheapflights users on 6/25. 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 9/161:25 pmBNA - ONT
1 stop8h 17mDelta
Mon 9/299:55 amONT - BNA
1 stop6h 29mDelta
Deal found 6/25$265
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Fri 7/187:06 pmBNA - ONT
1 stop6h 48mAmerican Airlines
Mon 7/2812:59 amONT - BNA
1 stop7h 54mAmerican Airlines
Deal found 6/25$267
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Mon 8/1812:20 pmTYS - ONT
1 stop9h 04mAmerican Airlines
Mon 8/2511:59 pmONT - TYS
1 stop8h 31mAmerican Airlines
Deal found 6/25$289
This Delta deal was found by Cheapflights users on 6/25. 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.
Fri 9/55:54 amCHA - ONT
1 stop7h 41mDelta
Sat 9/1312:00 pmONT - CHA
1 stop8h 25mDelta
Deal found 6/25$289
This Hawaiian Airlines deal was found by Cheapflights users on 6/26. 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 6/26$290
This Frontier deal was found by Cheapflights users on 6/26. 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 7/245:25 pmTYS - ONT
1 stop9h 25mFrontier
Wed 7/3012:59 amONT - TYS
1 stop12h 30mFrontier
Deal found 6/26$293
This American Airlines deal was found by Cheapflights users on 6/26. 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.
Mon 7/288:16 pmCHA - ONT
1 stop6h 38mAmerican Airlines
Sat 8/26:15 amONT - CHA
2 stops10h 25mAmerican Airlines
Deal found 6/26$294

Cheapflights Fare Finder

Customize your flight search to find flights from Tennessee 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 26, 2025.
Use the filters below to find and compare flights from Tennessee to Ontario that are best for you.

Fly from

Tennessee

Fly to

Ontario

Route

Depart

Return

Price

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 7/10

7:27 pm-9:09 am

1 stop15h 42m

Ontario

Tue 7/15

5:21 pm-12:02 am

1 stop28h 41m

$82

MemphisOntario

MEM - ONT

MEMONT

Memphis

Thu 7/24

7:48 pm-11:50 pm

1 stop6h 02m

Ontario

Wed 7/30

12:59 am-6:48 pm

1 stop15h 49m

$205

MemphisOntario

MEM - ONT

MEMONT

Memphis

Tue 7/29

7:00 am-4:20 pm

1 stop11h 20m

Ontario

Sat 8/2

5:21 pm-6:48 pm

1 stop23h 27m

$244

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Tue 8/12

7:00 am-4:20 pm

2 stops11h 20m

Ontario

Mon 8/18

12:00 pm-11:59 pm

1 stop9h 59m

$261

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 8/7

7:00 am-1:26 pm

1 stop8h 26m

Ontario

Sat 8/16

6:51 pm-5:40 am

1 stop8h 49m

$264

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Tue 9/16

6:25 am-11:24 am

1 stop6h 59m

Ontario

Fri 10/3

10:59 pm-9:05 am

1 stop8h 06m

$265

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Fri 7/18

7:06 pm-11:54 pm

1 stop6h 48m

Ontario

Mon 7/28

12:59 am-10:53 am

1 stop7h 54m

$267

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Mon 8/18

12:20 pm-6:24 pm

1 stop9h 04m

Ontario

Mon 8/25

11:59 pm-11:30 am

1 stop8h 31m

$289

ChattanoogaOntario

CHA - ONT

CHAONT

Chattanooga Lovell Field

Fri 9/5

5:54 am-10:35 am

1 stop7h 41m

Ontario

Sat 9/13

12:00 pm-11:25 pm

1 stop8h 25m

$289

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Thu 7/24

5:25 pm-11:50 pm

1 stop9h 25m

Ontario

Wed 7/30

12:59 am-4:29 pm

1 stop12h 30m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 51 results
1
2
3
...
6

Best time to book a flight from Tennessee to Ontario

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

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

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

Find hourly flight availability from Tennessee 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 26, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Tennessee to Ontario as you normally would.

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 26, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Tennessee to Ontario 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

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

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

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
4,276 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

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
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

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
2,522 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

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
8,838 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

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 Tennessee to Ontario. 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 into for flights to Ontario from Tennessee?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Tennessee.

  • How popular is this Tennessee to Ontario flight route?

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

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $56. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Tennessee to Ontario for a low price.

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

    The most popular route from Tennessee to Ontario is Nashville Intl - Ontario. You may also consider Memphis - Ontario or Chattanooga Lovell Field - Ontario.

  • What are the cheapest flights from Tennessee to Ontario?

    The cheapest flight price from Tennessee to Ontario is $256. On average you can expect to pay $513. The most popular route, (Nashville Intl - Ontario), can usually be booked for $264.

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

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Tennessee to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
Seattle to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to San Francisco flights
O'Hare Intl to Los Angeles flights
Newark to Las Vegas flights
John F Kennedy Intl to Los Angeles flights
Los Angeles to San Francisco flights
Newark to San Francisco flights
O'Hare Intl to Las Vegas flights
Atlanta to Las Vegas flights
San Francisco to Las Vegas flights
Hobby to Las Vegas flights
Seattle to San Francisco flights
Dallas/Fort Worth to Los Angeles flights
Seattle to Las Vegas flights
San Jose to Los Angeles flights
Los Angeles to Las Vegas flights
Boston to Los Angeles flights
San Francisco to Los Angeles flights
LaGuardia to Los Angeles flights
Los Angeles to San Jose flights
Hobby to Los Angeles flights
George Bush Intcntl to Las Vegas flights
Reagan-National to Los Angeles flights
LaGuardia to Las Vegas flights
Dulles Intl to Los Angeles flights
Denver to Las Vegas flights
Oakland to Las Vegas flights
Seattle to San Diego flights
Baltimore to Las Vegas flights
Portland to Los Angeles flights
Dulles Intl to San Francisco flights
George Bush Intcntl to Los Angeles flights
Seattle to San Jose flights
Santa Ana to Las Vegas flights
Seattle to Ontario flights
Oakland to Los Angeles flights
Boston to Las Vegas flights
Burbank to Las Vegas flights
Atlanta to Los Angeles flights
Minneapolis to Las Vegas flights
Los Angeles to Oakland flights
San Jose to Las Vegas flights
John F Kennedy Intl to San Diego flights
LaGuardia to San Francisco flights
Baltimore to Los Angeles flights
Dulles Intl to Las Vegas flights
Reagan-National to San Francisco flights

Top 6 airlines flying from Tennessee to Ontario

Discover the top 6 airlines that operate flights from Tennessee 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 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$261FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$108Average$160FlexibilityNo cancel feeOn-time65%
DeltaCheapest$199Average$396FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$419FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$258Average$450FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$323Average$461FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.