Which airport is the most popular layover for flights between Ontario and Knoxville?

Atlanta (ATL) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Ontario to Knoxville McGhee Tyson?

Frontier, Delta, and United Airlines are the most popular carriers operating from Ontario to Knoxville McGhee Tyson

Which layover airport has the shortest connection time from Ontario to Knoxville?

Dallas (DFW) has the shortest average layover time for this route: 0h 56m.

Which layover airport offers the lowest fares from Ontario to Knoxville?

Flights via Dallas (DFW) offer the lowest average round-trip price of $338.

Which layover airport has the shortest travel time from Ontario to Knoxville?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 6h 14m.

What airlines fly to Knoxville?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Knoxville from Ontario according to our data. American Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Knoxville. Keep in mind that there are 4 different airlines that fly to Knoxville on a routine basis, so you have a few additional options to choose from.

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?

There are 3 operators available for flights from Ontario Airport to Knoxville McGhee Tyson Airport as of September 2025.

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.

$157 Cheap Flights from Ontario to Knoxville in 2025/26

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Find the cheapest flights from Ontario to Knoxville

Round-trip

One-way

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Cheap round-trip flights

6:53 am - 7:32 pmONT-TYS

9h 39m1 stop

8:17 pm - 11:50 pmTYS-ONT

6h 33m1 stop

$191Frontier

Find Deal

Sun, Oct 19 - Thu, Oct 23

10:40 pm - 7:32 pmONT-TYS

17h 52m2 stops

8:17 pm - 11:50 pmTYS-ONT

6h 33m1 stop

$235Frontier

Find Deal

Sun, Oct 19 - Thu, Oct 23

1:37 pm - 7:32 pmONT-TYS

26h 55m2 stops

7:00 am - 11:50 pmTYS-ONT

19h 50m1 stop

$269Multiple Airlines

Find Deal

Sat, Oct 18 - Thu, Oct 23

11:36 am - 11:07 pmONT-TYS

8h 31m1 stop

5:16 pm - 10:22 pmTYS-ONT

8h 06m1 stop

$319Delta

Find Deal

Wed, Oct 29 - Wed, Nov 5

10:34 pm - 9:50 amONT-TYS

8h 16m1 stop

5:10 am - 4:01 pmTYS-ONT

13h 51m2 stops

$323American Airlines

Find Deal

Tue, Nov 4 - Wed, Nov 12

11:36 am - 11:07 pmONT-TYS

8h 31m1 stop

3:59 pm - 9:20 pmTYS-ONT

8h 21m2 stops

$324Delta

Find Deal

Wed, Oct 29 - Wed, Nov 5

9:59 am - 10:51 pmONT-TYS

9h 52m2 stops

5:10 am - 4:01 pmTYS-ONT

13h 51m2 stops

$328American Airlines

Find Deal

Tue, Nov 4 - Wed, Nov 12

6:38 pm - 10:05 amONT-TYS

12h 27m2 stops

5:45 am - 12:31 pmTYS-ONT

9h 46m2 stops

$329United Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 4

10:40 pm - 9:04 pmONT-TYS

43h 24m2 stops

7:00 am - 11:50 pmTYS-ONT

19h 50m1 stop

$339Multiple Airlines

Find Deal

Thu, Oct 16 - Thu, Oct 23

6:00 am - 5:37 pmONT-TYS

8h 37m1 stop

5:20 pm - 9:59 pmTYS-ONT

7h 39m1 stop

$409United Airlines

Find Deal

Sat, Feb 21 - Sat, Feb 28

Frontier flights from Ontario to Knoxville

Our best Frontier deals on Ontario to Knoxville flight tickets

Frontier

Oct 19

ONT6:53 amOntario

9h 39m

1 stop

TYS7:32 pmKnoxville McGhee Tyson

Oct 23

TYS8:17 pmKnoxville McGhee Tyson

6h 33m

1 stop

ONT11:50 pmOntario

$191

Find similar

Frontier

Oct 19

ONT10:40 pmOntario

17h 52m

2 stops

TYS7:32 pmKnoxville McGhee Tyson

Oct 23

TYS8:17 pmKnoxville McGhee Tyson

6h 33m

1 stop

ONT11:50 pmOntario

$235

Find similar

Frontier

Oct 5

ONT8:59 pmOntario

19h 46m

1 stop

TYS7:45 pmKnoxville McGhee Tyson

Oct 9

TYS8:17 pmKnoxville McGhee Tyson

6h 33m

1 stop

ONT11:50 pmOntario

$248

Find similar

American Airlines flights from Ontario to Knoxville

Our best American Airlines deals on Ontario to Knoxville flight tickets

American Airlines

Nov 4

ONT10:34 pmOntario

8h 16m

1 stop

TYS9:50 amKnoxville McGhee Tyson

Nov 12

TYS5:10 amKnoxville McGhee Tyson

13h 51m

2 stops

ONT4:01 pmOntario

$323

Find similar

American Airlines

Nov 4

ONT9:59 amOntario

9h 52m

2 stops

TYS10:51 pmKnoxville McGhee Tyson

Nov 12

TYS5:10 amKnoxville McGhee Tyson

13h 51m

2 stops

ONT4:01 pmOntario

$328

Find similar

American Airlines

Sep 30

ONT2:54 pmOntario

6h 27m

1 stop

TYS12:21 amKnoxville McGhee Tyson

Oct 28

TYS12:35 pmKnoxville McGhee Tyson

9h 17m

1 stop

ONT6:52 pmOntario

$369

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Fly from

Fly to

Route

Depart

Return

Price

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Sun 10/19

6:53 am-7:32 pm

1 stop9h 39m

Knoxville McGhee Tyson

Thu 10/23

8:17 pm-11:50 pm

1 stop6h 33m

$191

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Sun 10/19

10:40 pm-7:32 pm

2 stops17h 52m

Knoxville McGhee Tyson

Thu 10/23

8:17 pm-11:50 pm

1 stop6h 33m

$235

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Sat 10/18

1:37 pm-7:32 pm

2 stops26h 55m

Knoxville McGhee Tyson

Thu 10/23

7:00 am-11:50 pm

1 stop19h 50m

$269

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Wed 10/29

11:36 am-11:07 pm

1 stop8h 31m

Knoxville McGhee Tyson

Wed 11/5

5:16 pm-10:22 pm

1 stop8h 06m

$319

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Tue 11/4

10:34 pm-9:50 am

1 stop8h 16m

Knoxville McGhee Tyson

Wed 11/12

5:10 am-4:01 pm

2 stops13h 51m

$323

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Wed 10/29

11:36 am-11:07 pm

1 stop8h 31m

Knoxville McGhee Tyson

Wed 11/5

3:59 pm-9:20 pm

2 stops8h 21m

$324

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Tue 11/4

9:59 am-10:51 pm

2 stops9h 52m

Knoxville McGhee Tyson

Wed 11/12

5:10 am-4:01 pm

2 stops13h 51m

$328

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Tue 10/28

6:38 pm-10:05 am

2 stops12h 27m

Knoxville McGhee Tyson

Tue 11/4

5:45 am-12:31 pm

2 stops9h 46m

$329

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Thu 10/16

10:40 pm-9:04 pm

2 stops43h 24m

Knoxville McGhee Tyson

Thu 10/23

7:00 am-11:50 pm

1 stop19h 50m

$339

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Sat 2/21

6:00 am-5:37 pm

1 stop8h 37m

Knoxville McGhee Tyson

Sat 2/28

5:20 pm-9:59 pm

1 stop7h 39m

$409

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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

Prices

Airlines

Layovers

What is the cheapest month to fly to Knoxville?

The month of April is, on average, the cheapest month to fly to Knoxville from Ontario, with most prices found around $343. If you aren’t able to travel during the month of April, then book flights to Knoxville from Ontario during August instead. Flights to Knoxville in August, while not as cheap as those in April, still average around $348.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from Ontario to Knoxville is on a Saturday. Travelers who choose to depart for Knoxville on a Saturday will often find tickets for as low as $387. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Knoxville for around $552.

What is the cheapest time of day to depart on your flight to Knoxville?

In the afternoon is the cheapest time of day to fly from Ontario to Knoxville when you can find flight prices for as low as $399. Flying to Knoxville in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the evening when prices are around $442.

How far in advance should I book a flight 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 $418 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 $307 on momondo.

How have Ontario to Knoxville flight prices changed over time?

As of September 2025, prices for Ontario to Knoxville flights are approximately 7% 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

Direct flights	None

There are no direct flights from Ontario to Knoxville. There are no popular flight routes from Ontario to Knoxville.

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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 27m 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?
There are 3 operators available for flights from Ontario Airport to Knoxville McGhee Tyson Airport as of September 2025.
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?
momondo data reveals that the most frequently booked airline on the route from Ontario to Knoxville is American Airlines, representing 68% of all bookings. The subsequent popular airlines are Delta at 23% and United Airlines at 9%.

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
Delta	PriceFrom $288	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights

Pigeon Forge

Gatlinburg

Cherokee

Bryson City

Morristown

Corbin

Crossville

Maryville

Murphy

Alcoa

Newport

Lenoir City

Oak Ridge

Kodak

Dandridge

Clinton

Jefferson City

Rockford

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.

An easier way to manage your Knoxville trip

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Cheap flights from Ontario to Knoxville from $157

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Knoxville departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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 cheapest month to fly to Knoxville?

What is the cheapest day to depart on your flight to Knoxville?

What is the cheapest time of day to depart on your flight to Knoxville?

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

How have Ontario to Knoxville flight prices changed over time?

As of September 2025, prices for Ontario to Knoxville flights are approximately 7% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Ontario to Knoxville McGhee Tyson?

Frontier, Delta, and United Airlines are the most popular carriers operating from Ontario to Knoxville McGhee Tyson

What airlines fly to Knoxville?

Which airport is the most popular layover for flights between Ontario and Knoxville?

Atlanta (ATL) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Knoxville?

Flights via Dallas (DFW) offer the lowest average round-trip price of $338.

Which layover airport has the shortest travel time from Ontario to Knoxville?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 6h 14m.

Which layover airport has the shortest connection time from Ontario to Knoxville?

Dallas (DFW) has the shortest average layover time for this route: 0h 56m.

When to book flights from Ontario to Knoxville

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

Direct flights

How far is Ontario to Knoxville McGhee Tyson by plane?

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

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?

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

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

Traveling to a place near Knoxville?

Why use momondo?

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

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

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

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

An easier way to manage your Knoxville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Tennessee