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Cheap flights from Knoxville to Los Angeles from $132

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Los Angeles departing on 1/11. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:30 pm - 12:20 am
TYS
-
ONT
10h 50m1 stop
Frontier Logo
6:10 am - 7:18 pm
ONT
-
TYS
10h 08m1 stop
$203Frontier
Mon, Feb 2 - Mon, Feb 23
Frontier Logo
4:46 pm - 11:59 pm
TYS
-
ONT
10h 13m1 stop
Frontier Logo
6:00 am - 3:28 pm
ONT
-
TYS
6h 28m1 stop
$233Frontier
Mon, Jan 5 - Thu, Jan 8
Frontier Logo
4:23 pm - 11:56 pm
TYS
-
ONT
10h 33m1 stop
Frontier Logo
6:10 am - 7:23 pm
ONT
-
TYS
10h 13m1 stop
$272Frontier
Sun, Jan 11 - Sun, Jan 18
Delta Logo
5:40 am - 11:31 am
TYS
-
ONT
8h 51m1 stop
Delta Logo
10:30 pm - 9:21 am
ONT
-
TYS
7h 51m1 stop
$277Delta
Wed, Jan 21 - Wed, Jan 28
Frontier Logo
4:26 pm - 5:15 pm
TYS
-
ONT
27h 49m2 stops
Frontier Logo
6:00 am - 3:28 pm
ONT
-
TYS
6h 28m1 stop
$280Frontier
Sun, Jan 4 - Thu, Jan 8
Frontier Logo
4:26 pm - 11:59 pm
TYS
-
ONT
10h 33m1 stop
Frontier Logo
6:00 am - 3:28 pm
ONT
-
TYS
6h 28m1 stop
$282Frontier
Sun, Jan 4 - Thu, Jan 8
United Airlines Logo
11:10 am - 5:43 pm
TYS
-
ONT
9h 33m2 stops
United Airlines Logo
5:05 am - 7:27 pm
ONT
-
TYS
11h 22m2 stops
$287United Airlines
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
7:35 am - 2:54 pm
TYS
-
ONT
10h 19m1 stop
Multiple Airlines Logo
10:18 pm - 4:50 pm
ONT
-
TYS
15h 32m1 stop
$291Multiple Airlines
Fri, Jan 9 - Sun, Jan 11
Delta Logo
5:30 am - 11:40 am
TYS
-
ONT
9h 10m1 stop
Delta Logo
10:25 pm - 9:16 am
ONT
-
TYS
7h 51m1 stop
$368Delta
Thu, Mar 12 - Tue, Mar 17
American Airlines Logo
12:24 pm - 6:42 pm
TYS
-
ONT
9h 18m1 stop
American Airlines Logo
7:59 pm - 8:42 am
ONT
-
TYS
9h 43m2 stops
$373American Airlines
Fri, Mar 13 - Tue, Mar 17

Delta flights from Knoxville to Ontario

Our best Delta deals on Knoxville to Ontario flight tickets
Delta
Jan 21
TYS5:40 amKnoxville McGhee Tyson
8h 51m
1 stop
ONT11:31 amOntario
Jan 28
ONT10:30 pmOntario
7h 51m
1 stop
TYS9:21 amKnoxville McGhee Tyson
$277
Find similar
Delta
Mar 12
TYS5:30 amKnoxville McGhee Tyson
9h 10m
1 stop
ONT11:40 amOntario
Mar 17
ONT10:25 pmOntario
7h 51m
1 stop
TYS9:16 amKnoxville McGhee Tyson
$368
Find similar
Delta
Mar 14
TYS5:20 pmKnoxville McGhee Tyson
21h 20m
1 stop
ONT11:40 amOntario
Mar 17
ONT10:25 pmOntario
7h 51m
1 stop
TYS9:16 amKnoxville McGhee Tyson
$453
Find similar

United Airlines flights from Knoxville to Ontario

Our best United Airlines deals on Knoxville to Ontario flight tickets
United Airlines
Jan 21
TYS11:10 amKnoxville McGhee Tyson
9h 33m
2 stops
ONT5:43 pmOntario
Jan 28
ONT5:05 amOntario
11h 22m
2 stops
TYS7:27 pmKnoxville McGhee Tyson
$287
Find similar
United Airlines
Jan 20
TYS4:25 pmKnoxville McGhee Tyson
7h 33m
1 stop
ONT8:58 pmOntario
Jan 27
ONT5:05 amOntario
12h 47m
2 stops
TYS8:52 pmKnoxville McGhee Tyson
$412
Find similar
United Airlines
Feb 10
TYS4:55 pmKnoxville McGhee Tyson
8h 04m
1 stop
ONT9:59 pmOntario
Feb 15
ONT5:00 amOntario
12h 37m
2 stops
TYS8:37 pmKnoxville McGhee Tyson
$442
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Knoxville to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Mon 2/2

4:30 pm-12:20 am

1 stop10h 50m

Ontario

Mon 2/23

6:10 am-7:18 pm

1 stop10h 08m

$203

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Mon 1/5

4:46 pm-11:59 pm

1 stop10h 13m

Ontario

Thu 1/8

6:00 am-3:28 pm

1 stop6h 28m

$233

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sun 1/11

4:23 pm-11:56 pm

1 stop10h 33m

Ontario

Sun 1/18

6:10 am-7:23 pm

1 stop10h 13m

$272

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 1/21

5:40 am-11:31 am

1 stop8h 51m

Ontario

Wed 1/28

10:30 pm-9:21 am

1 stop7h 51m

$277

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sun 1/4

4:26 pm-5:15 pm

2 stops27h 49m

Ontario

Thu 1/8

6:00 am-3:28 pm

1 stop6h 28m

$280

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sun 1/4

4:26 pm-11:59 pm

1 stop10h 33m

Ontario

Thu 1/8

6:00 am-3:28 pm

1 stop6h 28m

$282

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 1/21

11:10 am-5:43 pm

2 stops9h 33m

Ontario

Wed 1/28

5:05 am-7:27 pm

2 stops11h 22m

$287

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 1/9

7:35 am-2:54 pm

1 stop10h 19m

Ontario

Sun 1/11

10:18 pm-4:50 pm

1 stop15h 32m

$291

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Thu 3/12

5:30 am-11:40 am

1 stop9h 10m

Ontario

Tue 3/17

10:25 pm-9:16 am

1 stop7h 51m

$368

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 3/13

12:24 pm-6:42 pm

1 stop9h 18m

Ontario

Tue 3/17

7:59 pm-8:42 am

2 stops9h 43m

$373

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Knoxville to Ontario

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 Ontario?

In general, January is the cheapest month to fly from Knoxville to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $301. If you aren’t able to travel during the month of January, then book flights to Ontario from Knoxville during February instead. Flights to Ontario in February, while not as cheap as those in January, still average around $313.

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

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $379. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Knoxville to Ontario for around $507.

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

In the evening is the cheapest time of day to fly from Knoxville to Ontario when you can find flight prices for as low as $319. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $440 on average. Flights to Ontario from Knoxville in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Knoxville to Ontario flight prices changed over time?

As of December 2025, prices for Knoxville to Ontario flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Ontario

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

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

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

Fastest flight time

7h 01m

Direct flights

None
The fastest flight from Knoxville to Ontario takes 7h 01m
There are no direct flights from Knoxville to Ontario. There are no popular flight routes from Knoxville to Ontario.
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  • How far is Knoxville McGhee Tyson to Ontario by plane?

    There are 1902.5 mi between Knoxville McGhee Tyson and Ontario. In terms of flight time, this usually takes a little over 7h 01m.

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

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

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

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

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Knoxville to Ontario

Compare and see reviews for airlines that fly from Knoxville to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $151Free CancellationRating
5.8
3,074 reviews
Search Frontier flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
9,106 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.9
8,014 reviews
Search Delta flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Ontario from Knoxville which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Knoxville to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Knoxville to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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