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Cheap flights from Ontario to Knoxville from $168

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:52 am - 2:11 pmONT  Ontario-TYS Knoxville McGhee Tyson
23h 19m1 stop Denver Intl
Multiple Airlines Logo
6:30 am - 11:51 pmTYS  Knoxville McGhee Tyson-ONT Ontario
20h 21m1 stop Denver Intl
$207Multiple Airlines
Sat, Oct 31 - Thu, Nov 5
Multiple Airlines Logo
11:52 am - 11:10 pmONT  Ontario-TYS Knoxville McGhee Tyson
32h 18m2 stops Denver Intl Phoenix Sky Harbor Intl
Multiple Airlines Logo
6:30 am - 10:35 amTYS  Knoxville McGhee Tyson-ONT Ontario
7h 05m1 stop Denver Intl
$273Multiple Airlines
Sat, Oct 31 - Thu, Nov 5
Multiple Airlines Logo
6:25 am - 12:39 pmONT  Ontario-TYS Knoxville McGhee Tyson
27h 14m2 stops Denver Intl Austin Bergstrom
Multiple Airlines Logo
10:09 pm - 9:40 amTYS  Knoxville McGhee Tyson-ONT Ontario
14h 31m1 stop Las Vegas Harry Reid Intl
$347Multiple Airlines
Thu, Nov 12 - Mon, Nov 16
American Airlines Logo
12:43 pm - 11:18 pmONT  Ontario-TYS Knoxville McGhee Tyson
7h 35m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 11:53 amTYS  Knoxville McGhee Tyson-ONT Ontario
8h 53m1 stop Dallas/Fort Worth
$377American Airlines
Tue, Oct 20 - Tue, Oct 27
American Airlines Logo
2:22 pm - 11:32 pmONT  Ontario-TYS Knoxville McGhee Tyson
6h 10m1 stop Dallas/Fort Worth
American Airlines Logo
5:30 am - 9:40 amTYS  Knoxville McGhee Tyson-ONT Ontario
7h 10m1 stop Dallas/Fort Worth
$377American Airlines
Sat, Nov 7 - Wed, Nov 11
Delta Logo
12:18 pm - 11:59 pmONT  Ontario-TYS Knoxville McGhee Tyson
8h 41m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 11:03 amTYS  Knoxville McGhee Tyson-ONT Ontario
7h 03m1 stop Atlanta Hartsfield-Jackson
$377Delta
Thu, Nov 12 - Sat, Nov 14
Delta Logo
12:00 pm - 11:46 pmONT  Ontario-TYS Knoxville McGhee Tyson
8h 46m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:30 am - 11:27 amTYS  Knoxville McGhee Tyson-ONT Ontario
8h 57m1 stop Atlanta Hartsfield-Jackson
$377Delta
Thu, Feb 18 - Tue, Feb 23
American Airlines Logo
10:30 pm - 8:48 amONT  Ontario-TYS Knoxville McGhee Tyson
7h 18m1 stop Charlotte Douglas
American Airlines Logo
2:55 pm - 6:42 pmTYS  Knoxville McGhee Tyson-ONT Ontario
6h 47m1 stop Dallas/Fort Worth
$377American Airlines
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
7:00 am - 4:59 pmONT  Ontario-TYS Knoxville McGhee Tyson
6h 59m1 stop Chicago O'Hare Intl
United Airlines Logo
6:45 am - 12:33 pmTYS  Knoxville McGhee Tyson-ONT Ontario
8h 48m2 stops Chicago O'Hare Intl Denver Intl
$382United Airlines
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
6:53 pm - 9:50 amONT  Ontario-TYS Knoxville McGhee Tyson
11h 57m2 stops San Francisco Chicago O'Hare Intl
United Airlines Logo
5:20 pm - 9:40 pmTYS  Knoxville McGhee Tyson-ONT Ontario
7h 20m1 stop Houston George Bush Intcntl
$408United Airlines
Fri, Feb 5 - Wed, Feb 10

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Southwest flights from Ontario to Knoxville

Our best Southwest deals on Ontario to Knoxville flight tickets
Southwest
Oct 20
ONT8:25 amOntario
9h 40m
2 stops
TYS9:05 pmKnoxville McGhee Tyson
Oct 27
TYS4:20 pmKnoxville McGhee Tyson
8h 25m
1 stop
ONT9:45 pmOntario
$382
Southwest
Nov 12
ONT5:35 amOntario
10h 10m
2 stops
TYS6:45 pmKnoxville McGhee Tyson
Nov 16
TYS7:05 amKnoxville McGhee Tyson
10h 35m
2 stops
ONT2:40 pmOntario
$387
Southwest
Nov 7
ONT6:10 amOntario
8h 35m
2 stops
TYS5:45 pmKnoxville McGhee Tyson
Nov 11
TYS7:05 amKnoxville McGhee Tyson
8h 05m
2 stops
ONT12:10 pmOntario
$413

American Airlines flights from Ontario to Knoxville

Our best American Airlines deals on Ontario to Knoxville flight tickets
American Airlines
Dec 5
ONT1:02 pmOntario
7h 38m
1 stop
TYS11:40 pmKnoxville McGhee Tyson
Dec 12
TYS5:17 pmKnoxville McGhee Tyson
7h 50m
1 stop
ONT10:07 pmOntario
$377
American Airlines
Dec 5
ONT9:35 amOntario
11h 05m
2 stops
TYS11:40 pmKnoxville McGhee Tyson
Dec 12
TYS5:17 pmKnoxville McGhee Tyson
7h 50m
1 stop
ONT10:07 pmOntario
$396
American Airlines
Dec 10
ONT1:02 pmOntario
7h 38m
1 stop
TYS11:40 pmKnoxville McGhee Tyson
Dec 13
TYS6:52 amKnoxville McGhee Tyson
9h 32m
1 stop
ONT1:24 pmOntario
$432

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to Knoxville that are best for you.

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Price

Cheapest round-trip

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Sat 10/31

11:52 am-2:11 pm

1 stop23h 19m

Knoxville McGhee Tyson

Thu 11/5

6:30 am-11:51 pm

1 stop20h 21m

$207

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Sat 10/31

11:52 am-11:10 pm

2 stops32h 18m

Knoxville McGhee Tyson

Thu 11/5

6:30 am-10:35 am

1 stop7h 05m

$273

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Thu 11/12

6:25 am-12:39 pm

2 stops27h 14m

Knoxville McGhee Tyson

Mon 11/16

10:09 pm-9:40 am

1 stop14h 31m

$347

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Tue 10/20

12:43 pm-11:18 pm

1 stop7h 35m

Knoxville McGhee Tyson

Tue 10/27

6:00 am-11:53 am

1 stop8h 53m

$377
Quickest round-trip

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Sat 11/7

2:22 pm-11:32 pm

1 stop6h 10m

Knoxville McGhee Tyson

Wed 11/11

5:30 am-9:40 am

1 stop7h 10m

$377

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Thu 11/12

12:18 pm-11:59 pm

1 stop8h 41m

Knoxville McGhee Tyson

Sat 11/14

7:00 am-11:03 am

1 stop7h 03m

$377

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Thu 2/18

12:00 pm-11:46 pm

1 stop8h 46m

Knoxville McGhee Tyson

Tue 2/23

5:30 am-11:27 am

1 stop8h 57m

$377

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Sat 11/7

10:30 pm-8:48 am

1 stop7h 18m

Knoxville McGhee Tyson

Wed 11/11

2:55 pm-6:42 pm

1 stop6h 47m

$377

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Sat 11/7

7:00 am-4:59 pm

1 stop6h 59m

Knoxville McGhee Tyson

Wed 11/11

6:45 am-12:33 pm

2 stops8h 48m

$382

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Fri 2/5

6:53 pm-9:50 am

2 stops11h 57m

Knoxville McGhee Tyson

Wed 2/10

5:20 pm-9:40 pm

1 stop7h 20m

$408

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Knoxville from

How to get the cheapest flight ticket from Ontario to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ontario and Knoxville?

Prices are currently low for flights on this route.

Typical prices usually range from $426 to $838.
The lowest price recently found on this route was $207.

What is the cheapest month to fly to Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from Ontario, with most prices found around $421. If you aren’t able to travel during the month of September, then book flights to Knoxville from Ontario during July instead. Flights to Knoxville in July, while not as cheap as those in September, still average around $435.

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

You are more likely to see cheaper flights to Knoxville from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $491 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Ontario for as low as $276 on momondo.

How have Ontario to Knoxville flight prices changed over time?

As of September 2026, prices for Ontario to Knoxville flights are approximately 101% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Knoxville (ONT to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Knoxville

Best Price Found

$168

Fastest flight time

6h 03m

Direct flights

None
The best one-way flight to Knoxville from Ontario in the past 72 hours is $168. The best round-trip flight deal from Ontario to Knoxville found on momondo in the last 72 hours is $207.
The fastest flight from Ontario to Knoxville takes 6h 03m
There are no direct flights from Ontario to Knoxville. There are no popular flight routes from Ontario to Knoxville.
Search flight deals

Frequently asked questions about flying from Ontario to Knoxville

  • How far is Ontario to Knoxville McGhee Tyson by plane?

    A flight from Ontario to Knoxville McGhee Tyson will travel around 1902.5 mi. Typically, this will take 6h 03m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Knoxville McGhee Tyson Airport?

    Prices for flights from Ontario Airport to Knoxville McGhee Tyson Airport refresh daily.

  • How many operators does momondo search for flights from Ontario Airport to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Ontario Airport to Knoxville McGhee Tyson Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Knoxville?

Best airlines flying from Ontario to Knoxville

Compare and see reviews for airlines that fly from Ontario to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $276Free CancellationRating
7.8
8,608 reviews
Search Delta flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
10,261 reviews
Search United Airlines flights
American AirlinesPriceFrom $364Free CancellationRating
7.0
12,097 reviews
Search American Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Alcoa
Crossville
Maryville
Murphy
Oak Ridge
Kodak
Newport
Lenoir City
Dandridge
Clinton
Rockford
Jefferson City

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Knoxville?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Knoxville. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Knoxville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Knoxville from Ontario with this policy.

How can momondo help me find flights from Ontario to Knoxville?

Once all potential Ontario to Knoxville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Knoxville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Knoxville, momondo offers a useful price alert feature which will track prices for flights to Knoxville from Ontario and alert you when they change.

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