TYS - ONT

$114 Find Cheap Flights from Knoxville to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$358
Typical prices: $387-$576
Multiple Airlines
Mon 10/29Thu 11/1
TYS - ONT • 1 stop
Cheapest one-way
$114
Typical prices: $225-$352
Multiple Airlines
Mon 10/15
TYS - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Knoxville and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 19% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Chicago O'Hare Intl (ORD)
Cheapest • Avg $339 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 7h 08m (one-way)
Insights
Insights
Start a new search
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
Flight Deals

Cheap Flights from Knoxville to Ontario (TYS-ONT)

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

Recent round-trip flight deals from Knoxville to Ontario

Thu, Oct 29 - Sun, Nov 1
Multiple Airlines Logo
6:30 am - 10:35 amTYS  Knoxville McGhee Tyson-ONT Ontario
7h 05m1 stop Denver Intl
Multiple Airlines Logo
8:35 pm - 8:52 pmONT  Ontario-TYS Knoxville McGhee Tyson
21h 17m1 stop Las Vegas Harry Reid Intl
$358Multiple Airlines
Sun, Nov 15 - Thu, Nov 19
Multiple Airlines Logo
8:43 pm - 11:16 amTYS  Knoxville McGhee Tyson-ONT Ontario
17h 33m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:35 pm - 12:42 pmONT  Ontario-TYS Knoxville McGhee Tyson
13h 07m1 stop Las Vegas Harry Reid Intl
$369Multiple Airlines
Sat, Dec 5 - Sat, Dec 12
American Airlines Logo
5:30 am - 11:52 amTYS  Knoxville McGhee Tyson-ONT Ontario
9h 22m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 4:42 pmONT  Ontario-TYS Knoxville McGhee Tyson
7h 42m1 stop Dallas/Fort Worth
$377American Airlines
Tue, Nov 3 - Tue, Nov 10
American Airlines Logo
5:30 am - 11:52 amTYS  Knoxville McGhee Tyson-ONT Ontario
9h 22m1 stop Dallas/Fort Worth
American Airlines Logo
10:30 am - 9:39 pmONT  Ontario-TYS Knoxville McGhee Tyson
8h 09m1 stop Dallas/Fort Worth
$377American Airlines
Tue, Jan 12 - Tue, Jan 19
Delta Logo
5:57 pm - 10:14 pmTYS  Knoxville McGhee Tyson-ONT Ontario
7h 17m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:00 pm - 11:46 pmONT  Ontario-TYS Knoxville McGhee Tyson
8h 46m1 stop Atlanta Hartsfield-Jackson
$377Delta
Wed, Oct 28 - Sat, Oct 31
American Airlines Logo
6:06 pm - 10:59 pmTYS  Knoxville McGhee Tyson-ONT Ontario
7h 53m1 stop Charlotte Douglas
American Airlines Logo
11:45 pm - 8:48 amONT  Ontario-TYS Knoxville McGhee Tyson
7h 03m1 stop Charlotte Douglas
$377American Airlines
Thu, Oct 29 - Sun, Nov 1
Multiple Airlines Logo
6:30 am - 10:35 amTYS  Knoxville McGhee Tyson-ONT Ontario
7h 05m1 stop Denver Intl
Multiple Airlines Logo
6:25 am - 12:54 pmONT  Ontario-TYS Knoxville McGhee Tyson
27h 29m2 stops Denver Intl Austin Bergstrom
$380Multiple Airlines
Tue, Jan 12 - Tue, Jan 19
United Airlines Logo
6:40 am - 12:33 pmTYS  Knoxville McGhee Tyson-ONT Ontario
8h 53m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
5:00 am - 2:36 pmONT  Ontario-TYS Knoxville McGhee Tyson
6h 36m1 stop Denver Intl
$382United Airlines
Wed, Oct 28 - Sat, Oct 31
United Airlines Logo
11:59 am - 8:51 pmTYS  Knoxville McGhee Tyson-ONT Ontario
11h 52m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
6:59 am - 4:59 pmONT  Ontario-TYS Knoxville McGhee Tyson
7h 00m1 stop Chicago O'Hare Intl
$382United Airlines
Thu, Oct 22 - Sun, Oct 25
Delta Logo
5:40 am - 11:06 amTYS  Knoxville McGhee Tyson-ONT Ontario
8h 26m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:15 pm - 9:34 amONT  Ontario-TYS Knoxville McGhee Tyson
7h 19m1 stop Atlanta Hartsfield-Jackson
$553Delta
Booking Insights

Price, demand and travel trends for Knoxville to Ontario flights

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

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Knoxville to Ontario. It’s 16% cheaper than the average day, while Sunday is the most expensive, with prices 72% higher.

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

•September is the cheapest month to fly from Knoxville to Ontario at $388 round-trip.
•June ($655) and July ($557) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 68% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Knoxville to Ontario flights

Low season

February

Cheapest flight

$114
Beat the crowds with an average 29% drop in travelers.
The most popular month to fly with an average 120% increase in travelers.
One-way flight from Knoxville to Ontario

When to book flights from Knoxville to Ontario

Are your dates flexible? Find out the best times to travel from Knoxville 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 Knoxville to Ontario flight questions, answered

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

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

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

    • Economy Class
    • First Class

  • How long is a flight from Knoxville to Ontario?

    A nonstop flight from Knoxville to Ontario takes 00m, covering 1,897 miles.

  • Do I need a passport to fly from Knoxville 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 Knoxville to Ontario flight?

    Round-trip flights from Knoxville to Ontario range from $387 to $576, with an average of $479 over the past 12 months. Anything below $387 counts as a good deal.

  • Have flight prices from Knoxville to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $358 to $2,521. That means the highest observed fare was about 7x higher than the lowest one.

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

    One-way fares from Knoxville to Ontario are currently lower than usual. Average one-way flight prices are about $197, which is 31% 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 starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

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

    Flights from Knoxville to Ontario usually depart from Knoxville McGhee Tyson (TYS) and arrive at Ontario (ONT).

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

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

    • Dallas/Fort Worth (DFW) - 53% of one-stop connections
    • Denver Intl (DEN) - 25% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 19% of one-stop connections
    • Charlotte Douglas (CLT) - 1% of one-stop connections

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

    Yes. Flexible dates can save you up to 52% on flights from Knoxville to Ontario. Thursday is the cheapest departure day at $405 round-trip on average, while Sunday is the most expensive at $827, a difference of $422.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 7h 08m, compared with 7h 27m via Chicago O'Hare Intl (ORD) and 7h 30m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Knoxville and Ontario?

    Ontario is 3 hours behind Knoxville (Pacific Time vs Eastern 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.

Your guide to booking Knoxville 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 Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $405, about $422 less than Sunday fares (51% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Knoxville to Ontario trip for September. Fares historically average $388 round-trip in that month - typically $267 less than the most expensive month, which is June (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.

    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • La Quinta Inn & Suites by Wyndham Ontario Airport
    • Ontario Airport Inn

More options for your flight from Knoxville to Ontario

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

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario