BNA - ONT

$122 Find Cheap Flights from Nashville to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Nashville to Ontario departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Nashville to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Nashville to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$248
Typical prices: $308-$512
Frontier
Tue 9/29Wed 9/30
BNA - ONT • 1 stop
Cheapest non-stop
$352
Southwest
Thu 8/13Mon 8/17
BNA - ONT • Non-stop
Nonstop flights
You can fly direct with Southwest. Average duration is 4h 07m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $277 (round-trip)
Shortest trip • 6h 25m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Nashville to Ontario (BNA-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Nashville to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Nashville to Ontario

Tue, Sep 29 - Wed, Sep 30
Frontier Logo
7:42 pm - 11:55 pm
BNA
-
ONT
6h 13m
1 stop
Frontier Logo
6:00 am - 6:47 pm
ONT
-
BNA
10h 47m
1 stop
$248Frontier
Mon, Aug 31 - Wed, Sep 30
Frontier Logo
12:55 pm - 11:55 pm
BNA
-
ONT
13h 00m
1 stop
Frontier Logo
6:00 am - 6:47 pm
ONT
-
BNA
10h 47m
1 stop
$250Frontier
Thu, Aug 6 - Mon, Aug 10
Frontier Logo
12:25 pm - 11:50 pm
BNA
-
ONT
13h 25m
1 stop
Frontier Logo
8:17 am - 7:13 pm
ONT
-
BNA
8h 56m
1 stop
$252Frontier
Tue, Sep 8 - Thu, Sep 24
Frontier Logo
12:55 pm - 11:50 pm
BNA
-
ONT
12h 55m
1 stop
Frontier Logo
6:00 am - 6:47 pm
ONT
-
BNA
10h 47m
1 stop
$253Frontier
Thu, Aug 6 - Wed, Aug 12
Frontier Logo
3:41 pm - 8:03 am
BNA
-
ONT
18h 22m
1 stop
Frontier Logo
1:38 pm - 2:46 pm
ONT
-
BNA
23h 08m
1 stop
$254Frontier
Sat, Aug 8 - Sat, Aug 15
Frontier Logo
12:25 pm - 11:50 pm
BNA
-
ONT
13h 25m
1 stop
Frontier Logo
10:49 am - 11:40 am
ONT
-
BNA
22h 51m
1 stop
$257Frontier
Tue, Aug 11 - Wed, Aug 19
Frontier Logo
12:25 pm - 11:50 pm
BNA
-
ONT
13h 25m
1 stop
Frontier Logo
7:56 pm - 12:10 pm
ONT
-
BNA
14h 14m
1 stop
$258Frontier
Thu, Aug 6 - Tue, Aug 11
Frontier Logo
3:41 pm - 8:03 am
BNA
-
ONT
18h 22m
1 stop
Frontier Logo
6:00 am - 11:40 am
ONT
-
BNA
27h 40m
1 stop
$260Frontier
Sat, Jul 18 - Wed, Jul 22
Frontier Logo
12:17 pm - 10:04 am
BNA
-
ONT
23h 47m
1 stop
Frontier Logo
1:38 pm - 2:46 pm
ONT
-
BNA
23h 08m
1 stop
$261Frontier
Fri, Sep 18 - Sat, Sep 19
Frontier Logo
2:52 pm - 8:54 pm
BNA
-
ONT
8h 02m
1 stop
Frontier Logo
6:00 am - 6:47 pm
ONT
-
BNA
10h 47m
1 stop
$262Frontier
Booking Insights

KAYAK's insights & trends for Nashville to Ontario flights

Get data-powered insights and trends into flights from Nashville to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Nashville to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Nashville to Ontario departing in September.

What’s the cheapest day of the week to fly from Nashville to Ontario?

The average price of all round-trip flights from Nashville to Ontario clicked on KAYAK for each day over the last 12 months.

When flying from Nashville to Ontario, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Nashville, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Nashville to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Nashville to Ontario is August, where tickets cost $274 (return) on average. On the other hand, the most expensive months are March and October, where the average cost of round-trip tickets is $540 and $496 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Nashville to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Nashville to Ontario, you should book around 4 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Nashville to Ontario

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Stefanie Waldek

Stefanie Waldek

Expert on BNA

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonAugust
Cheapest flight$122
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Nashville to Ontario

When to book flights from Nashville to Ontario

Are your dates flexible? Find out the best times to travel from Nashville to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Nashville to Ontario

  • What is the cheapest flight from Nashville to Ontario?

    In the last 5 days, the lowest price for a flight from Nashville to Ontario was $122 for a one-way ticket and $248 for a round-trip.

  • Do I need a passport to fly between Nashville and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Nashville to Ontario?

    Alaska Airlines, Delta, American Airlines, and JetBlue offer inflight Wi-Fi service on the Nashville to Ontario flight route.

  • Which aircraft models fly most regularly from Nashville to Ontario?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Nashville to Ontario flight route.

  • Which airline alliances offer flights from Nashville to Ontario?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Nashville and Ontario, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Nashville to Ontario?

    There are nonstop flights from Nashville to Ontario on a daily basis.

  • Which is the best airline for flights from Nashville to Ontario, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Nashville to Ontario are Southwest and Delta. With an average price for the route of $515 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $365 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Nashville to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Nashville to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Nashville to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Nashville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Nashville to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Nashville with another airline. Booking your flights between Nashville and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Nashville to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Nashville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Nashville to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $405 or less round-trip.

Prefer to fly direct from Nashville to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Nashville Intl to Ontario.
Find which airlines fly direct from Nashville Intl Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

Nashville Intl to Ontario

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Ontario to Nashville Intl

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top 5 airlines serving from Nashville to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Nashville to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Nashville to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4246 reviews
8.1Boarding
7.0Food
8.6Crew
7.5Entertainment
8.0Comfort
Airline reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

6.0 GoodSteven, Jun 2026
LAS - ONT
Read more Southwest reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

I'm glad it wasn't only 75% full because I could get a good seat

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

The flight in it self was good. The delays looking for pilots was unexpected.

I was in Comfort and we didn’t get any drinks, chips or anything! First Class got full service on the flight and Comfort got nothing. Seat was horrible and uncomfortable

Short trip, no food and therefore no expectation for much interaction with staff who were pleasant and professional. My critique is on comfort of the seats. Exit rows and comfort seats do not provide enough personal space for 3 side-by-side seats, especially when in the middle row. Some passengers are not considerate of the middle seat and there should be signs that state something to the effect of: "please consider giving middle seats use of the armrests."

The tray table was broken and the food was terrible.

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Canceled last minute. Also canceled another flight that my brother was supposed to be on. Delta is horrible now. Never flying them again.

Inconsiderate staff, plane was very hot, poor decision-making from the crew.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

More filling food and more entertainment options would be cool.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

Overall it was good. The flight was bumpy at times, but the pilot made us aware every time. As a result, no snacks/drinks were made available. Seats were tight but that’s okay as I had a window seat.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Both of the first class flight attendants were rude, to everyone, not just us. The one in coach was more helpful to us than the ones in first class!

Air condition was not working for long both after boarding and also after landing ; unbearably hot and suffocating

Flight was on-time, boarding was flawless and the crew was friendly.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

American has been able to implement an algorithm that makes it possible for nearly every one of my evening flights to be late. Congratulations!

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

Amazing I love American. I’ll never fly anyone else if I can help it.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

My flight was delayed about three hours. I got home at 3:30 in the morning very bad experience.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

I was shocked that there is no Wi-Fi, my flight was changed and delayed multiple times. In fact, I’m still not home…

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

It’s Frontier so they’d charge you for the air you breath if they can work out how but it was on time.

Everything costs something on this airline .... even snacks!! What a racket! We got to the airport nice and early only to wait in a line while there were no reps at the counter. Once we got to the counter to check our bags (which cost almost as much as the flight to check), we were told we were too early?!!! and had to wait an hour to check in. Then, to add insult to injury, because we didn't PAY to choose our seats, we were seated separately. I HATE THIS AIRLINE.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

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

Information on your arrival and departure airports