BNA - ONT

$77 Find Cheap Flights from Nashville to Ontario - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$142
Typical prices: $305-$511
Frontier
Mon 12/3Mon 12/10
BNA - ONT • 1 stop
Cheapest non-stop
$361
Typical prices: $431-$619
Southwest
Wed 12/5Wed 12/12
BNA - ONT • Non-stop
Nonstop flights
You can fly direct with Southwest. Average duration is 4h 30m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $313 (round-trip)
Shortest trip • 6h 17m (one-way)
Insights
Insights
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We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Nashville to Ontario (BNA-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Nashville to Ontario

Thu, Dec 3 - Thu, Dec 10
Frontier Logo
1:14 pm - 12:17 amBNA  Nashville Intl-ONT Ontario
13h 03m1 stop Denver Intl
Frontier Logo
6:00 am - 12:34 pmONT  Ontario-BNA Nashville Intl
28h 34m1 stop Denver Intl
$142Frontier
Thu, Jan 28 - Thu, Feb 4
Frontier Logo
3:01 pm - 10:47 amBNA  Nashville Intl-ONT Ontario
21h 46m1 stop Denver Intl
Frontier Logo
11:42 am - 2:06 pmONT  Ontario-BNA Nashville Intl
24h 24m1 stop Denver Intl
$147Frontier
Wed, Feb 17 - Wed, Feb 24
American Airlines Logo
7:00 am - 1:38 pmBNA  Nashville Intl-ONT Ontario
8h 38m1 stop Dallas/Fort Worth
American Airlines Logo
2:29 pm - 11:25 pmONT  Ontario-BNA Nashville Intl
6h 56m1 stop Dallas/Fort Worth
$267American Airlines
Wed, Jan 6 - Tue, Jan 12
American Airlines Logo
7:00 am - 1:28 pmBNA  Nashville Intl-ONT Ontario
8h 28m1 stop Dallas/Fort Worth
American Airlines Logo
10:38 am - 7:20 pmONT  Ontario-BNA Nashville Intl
6h 42m1 stop Dallas/Fort Worth
$277American Airlines
Fri, Dec 4 - Thu, Dec 10
Multiple Airlines Logo
9:30 am - 12:17 amBNA  Nashville Intl-ONT Ontario
16h 47m3 stops Jonesboro Lambert-St Louis Denver Intl
Multiple Airlines Logo
6:00 am - 5:20 pmONT  Ontario-BNA Nashville Intl
9h 20m2 stops Denver Intl Dallas/Fort Worth
$304Multiple Airlines
Fri, Dec 4 - Tue, Dec 8
Multiple Airlines Logo
9:30 am - 12:17 amBNA  Nashville Intl-ONT Ontario
16h 47m3 stops Jonesboro Lambert-St Louis Denver Intl
Multiple Airlines Logo
12:36 pm - 12:34 pmONT  Ontario-BNA Nashville Intl
21h 58m2 stops Dallas/Fort Worth Denver Intl
$304Multiple Airlines
Wed, Dec 2 - Sat, Dec 12
Delta Logo
5:05 pm - 11:57 pmBNA  Nashville Intl-ONT Ontario
8h 52m1 stop Salt Lake City
Delta Logo
1:11 pm - 10:08 pmONT  Ontario-BNA Nashville Intl
6h 57m1 stop Salt Lake City
$335Delta
Mon, Dec 14 - Fri, Dec 18
Delta Logo
7:10 am - 12:17 pmBNA  Nashville Intl-ONT Ontario
7h 07m1 stop Salt Lake City
Delta Logo
1:11 pm - 9:25 pmONT  Ontario-BNA Nashville Intl
6h 14m1 stop Salt Lake City
$335Delta
Thu, Jan 28 - Thu, Feb 4
United Airlines Logo
9:50 am - 5:35 pmBNA  Nashville Intl-ONT Ontario
9h 45m2 stops Chicago O'Hare Intl San Francisco
United Airlines Logo
5:00 am - 4:10 pmONT  Ontario-BNA Nashville Intl
9h 10m2 stops Denver Intl Chicago O'Hare Intl
$350United Airlines
Fri, Dec 4 - Mon, Dec 14
United Airlines Logo
4:28 pm - 9:59 pmBNA  Nashville Intl-ONT Ontario
7h 31m1 stop Houston George Bush Intcntl
United Airlines Logo
5:00 am - 5:40 pmONT  Ontario-BNA Nashville Intl
10h 40m2 stops Denver Intl Chicago O'Hare Intl
$412United Airlines
Booking Insights

Price, demand and travel trends for Nashville to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Nashville to Ontario typically range from $305 to $511. The lowest price found in the past 5 days was $142, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Nashville to Ontario. It’s 11% cheaper than the average day, while Sunday is the most expensive, with prices 34% higher.

What’s the cheapest month to fly from Nashville to Ontario?

•February is the cheapest month to fly from Nashville to Ontario at $327 round-trip.
•December ($570) and March ($537) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 74% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Nashville to Ontario the cheapest?

Flights from Nashville to Ontario are cheapest 18 weeks before departure. Booking in this window typically costs about 38% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Nashville to Ontario

 
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.

Key details for Nashville to Ontario flights

Low season

December

Cheapest flight

$77
Beat the crowds with an average 17% drop in travelers.
The most popular month to fly with an average 18% increase in travelers.
One-way 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

Your Nashville to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Nashville to Ontario?

    These are the earliest and latest flight times available from Nashville to Ontario:

    • Earliest: departs at 12:30 pm and lands at 5:00 pm
    • Latest: departs at 7:30 pm and lands at 12:00 am.

    The flight takes about 4h 30m.

  • What cabin classes can I book on flights from Nashville to Ontario?

    Two cabin classes are available on flights from Nashville to Ontario:

    • Economy Class
    • First Class

  • How long is a flight from Nashville to Ontario?

    A nonstop flight from Nashville to Ontario takes 4h 30m, covering 1,745 miles.

  • Do I need a passport to fly from Nashville to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Nashville to Ontario flight?

    Round-trip flights from Nashville to Ontario range from $305 to $511, with an average of $401 over the past 12 months. Anything below $305 counts as a good deal.

  • How expensive are last-minute Nashville to Ontario flights?

    Last-minute fares on this route (booked within two weeks of departure) run 10% above the $401 route average. Book 18 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Nashville to Ontario?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $313 round-trip via Denver Intl (DEN), compared to $509 for nonstop.

  • What is the standard checked-bag allowance on flights from Nashville to Ontario?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Nashville to Ontario?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest and Alaska Airlines. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • How are flight departures from Nashville to Ontario spread across the day?

    Afternoon is the busiest departure period on Nashville to Ontario flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

  • How are flight prices from Nashville to Ontario looking right now?

    One-way fares from Nashville to Ontario are currently lower than usual. Average one-way flight prices are about $144, which is 35% below the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Alamo
    • Dollar

  • Which airports can I use when flying from Nashville to Ontario?

    Flights from Nashville to Ontario usually depart from Nashville Intl (BNA) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Nashville to Ontario pass through?

    One-stop flights from Nashville to Ontario most commonly connect through:

    • Dallas/Fort Worth (DFW) - 33% of one-stop connections
    • Denver Intl (DEN) - 27% of one-stop connections
    • Salt Lake City (SLC) - 18% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 8% of one-stop connections

  • Can I save money by using flexible dates for flights from Nashville to Ontario?

    Yes. Flexible dates can save you up to 34% on flights from Nashville to Ontario. Saturday is the cheapest departure day at $358 round-trip on average, while Sunday is the most expensive at $540, a difference of $182.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from Nashville to Ontario?

    Only Southwest operates flights between Nashville and Ontario.

  • How much time can I save by choosing a different layover airport from Nashville to Ontario?

    Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 6h 17m, compared with 6h 41m via Dallas/Fort Worth (DFW) and 6h 41m via Salt Lake City (SLC).

  • What is the time difference between Nashville and Ontario?

    Ontario is 2 hours behind Nashville (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Nashville to Ontario flights?

    Among airlines operating Nashville to Ontario flights:

    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Nashville to Ontario flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Nashville to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $358, about $182 less than Sunday fares (34% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 38% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Nashville to Ontario trip for February. Fares historically average $327 round-trip in that month - typically $243 less than the most expensive month, which is December (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Denver Intl Airport (DEN) can be cheaper than flying direct. The cheapest layover option averages $313 round-trip on this route - about $196 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • Holiday Inn Ontario Airport By IHG

Prefer to fly direct from Nashville 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

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Wednesday

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Thursday

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Friday

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Saturday

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Sunday

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See more direct flights

Direct returns

Ontario to Nashville Intl

Monday

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Tuesday

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Wednesday

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Thursday

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Southwest

Friday

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Southwest

Saturday

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Sunday

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Southwest

See more direct flights

More options for your flight from Nashville to Ontario

Complete your trip to Ontario with a hotel stay or car rental