Cheap Flight Tickets from Knoxville (TYS) to Ontario (ONT), Starting at $433

Good to Know: Cheapest and Fastest TYS - ONT Flights

Useful information for finding best airline tickets from McGhee Tyson to Ontario International on your next trip.

Cheapest Round Trip Flight

$433

WN Southwest Airlines • 1 stop • 16h 40m

Sep 01 – Sep 06

The cheapest round trip flight from Knoxville to Ontario (TYS-ONT-TYS) is currently $433

🔍 Search Flights

Fastest Flight

14h 15m

The fastest nonstop flight from Knoxville to Ontario (TYS-ONT) takes 14h 15m

Top Airlines Flying from Knoxville to Ontario

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

Latest Flight Deals from Knoxville (TYS) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Knoxville to Ontario. Ideal for travelers with confirmed return itineraries.

Sep 01 - Sep 06, Economy
WN
Knoxville → Ontario
16h 40m
3:00 PM - 10:00 PM • 1 stop
WN
Knoxville → Ontario
16h 45m
11:15 PM - 12:20 PM • 1 stop
$433
Southwest Airlines
Sep 01 - Sep 06, Economy
WN
Knoxville → Ontario
17h 5m
7:00 AM - 2:25 PM • 2 stops
WN
Knoxville → Ontario
12h 5m
6:55 AM - 5:20 PM • 1 stop
$439
Southwest Airlines
Sep 01 - Sep 06, Economy
WN
Knoxville → Ontario
14h 15m
3:00 PM - 8:55 PM • 2 stops
WN
Knoxville → Ontario
15h 25m
11:55 PM - 12:20 PM • 2 stops
$444
Southwest Airlines
Sep 01 - Sep 06, Economy
WN
Knoxville → Ontario
22h 15m
7:00 AM - 5:35 PM • 3 stops
WN
Knoxville → Ontario
18h 20m
6:55 AM - 8:55 PM • 1 stop
$444
Southwest Airlines
Sep 01 - Sep 06, Economy
WN
Knoxville → Ontario
20h 5m
7:00 AM - 4:05 PM • 2 stops
WN
Knoxville → Ontario
17h 5m
5:15 AM - 6:40 PM • 3 stops
$449
Southwest Airlines
Sep 01 - Sep 06, Economy
WN
Knoxville → Ontario
20h 5m
7:00 AM - 4:05 PM • 3 stops
WN
Knoxville → Ontario
18h 25m
6:50 AM - 8:55 PM • 2 stops
$449
Southwest Airlines

Fly from Knoxville to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Knoxville to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Knoxville to Ontario Flights

What are the airports in Knoxville?
TYS
What’s the most popular airline flying from TYS to ONT?
The most popular airline flying from Knoxville to Ontario are
Can I fly from TYS to ONT non-stop?
NO
Which airlines fly nonstop between Knoxville and Ontario?
The non-stop flights between Knoxville and Ontario are .
What’s the earliest departure time from TYS to ONT Airport?
The earliest flight leaves TYS at 7:00 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Knoxville to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from TYS to ONT?
Read the fare rules of the Knoxville to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Knoxville and Ontario?
operate flights between Knoxville and Ontario
How long does a flight from Knoxville to Ontario take?
It takes approximately 4 hour to fly non-stop from TYS to ONT, which is 1902.36 miles by air.
Which airlines provide the cheapest flights from Knoxville (TYS) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from TYS were found on WN : USD 439
Do I need a passport to fly between TYS and ONT?
No
What’s the latest departure time from TYS to ONT ?
The last flight leaves TYS at 3:00 pm

Knoxville (TYS) to Ontario (ONT): Airport Information

Origin Airport McGhee Tyson , Knoxville, US
Destination Airport Ontario International , Ontario, US
Distance 1902 miles

More Flight Options for Knoxville (TYS) and Ontario (ONT)

Why Fareleaders for TYS to ONT Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Knoxville to Ontario flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on TYS to ONT flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Knoxville to Ontario flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Knoxville (TYS) to Ontario (ONT)
Terms and Conditions*