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Cheap flights from Knoxville to Los Angeles from $111

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 11/13. 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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Find the cheapest flights from Knoxville to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:56 pm - 2:25 pmTYS-ONT
23h 29m2 stops
Multiple Airlines Logo
6:15 am - 5:02 pmONT-TYS
7h 47m1 stop
$305Multiple Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
8:05 pm - 11:28 amTYS-ONT
18h 23m1 stop
Frontier Logo
12:58 am - 7:10 pmONT-TYS
15h 12m1 stop
$313Frontier
Find Deal
Sat, Nov 22 - Fri, Nov 28
Delta Logo
2:30 pm - 9:14 pmTYS-ONT
9h 44m1 stop
Delta Logo
10:30 pm - 9:13 amONT-TYS
7h 43m1 stop
$319Delta
Find Deal
Sat, Feb 28 - Wed, Mar 4
Multiple Airlines Logo
8:00 am - 2:04 pmTYS-ONT
9h 04m1 stop
Multiple Airlines Logo
6:00 am - 5:02 pmONT-TYS
8h 02m1 stop
$322Multiple Airlines
Find Deal
Mon, Dec 15 - Fri, Dec 19
Delta Logo
5:00 pm - 9:14 pmTYS-ONT
7h 14m1 stop
Delta Logo
5:05 pm - 9:13 amONT-TYS
13h 08m2 stops
$324Delta
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Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
4:31 pm - 9:07 pmTYS-ONT
7h 36m1 stop
American Airlines Logo
2:42 pm - 11:45 pmONT-TYS
6h 03m1 stop
$368American Airlines
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Sat, Dec 13 - Fri, Dec 26
American Airlines Logo
6:40 am - 4:02 pmTYS-ONT
12h 22m2 stops
American Airlines Logo
2:42 pm - 11:45 pmONT-TYS
6h 03m1 stop
$373American Airlines
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Sat, Dec 13 - Fri, Dec 26
United Airlines Logo
1:55 pm - 10:57 pmTYS-ONT
12h 02m2 stops
United Airlines Logo
11:50 pm - 10:19 amONT-TYS
6h 29m1 stop
$404United Airlines
Find Deal
Mon, Mar 2 - Sat, Mar 7
United Airlines Logo
4:25 pm - 8:58 pmTYS-ONT
7h 33m1 stop
United Airlines Logo
5:05 am - 9:02 pmONT-TYS
12h 57m2 stops
$414United Airlines
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Wed, Jan 7 - Wed, Jan 14
Southwest Logo
7:50 am - 3:55 pmTYS-ONT
11h 05m1 stop
Southwest Logo
9:55 pm - 12:45 pmONT-TYS
11h 50m2 stops
$488Southwest
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Sat, Mar 14 - Thu, Mar 19

Frontier flights from Knoxville to Ontario

Our best Frontier deals on Knoxville to Ontario flight tickets
Frontier
Nov 6
TYS7:17 pmKnoxville McGhee Tyson
18h 53m
1 stop
ONT11:10 amOntario
Nov 15
ONT12:05 pmOntario
27h 17m
1 stop
TYS6:22 pmKnoxville McGhee Tyson
$188
Find similar
Frontier
Nov 22
TYS8:05 pmKnoxville McGhee Tyson
18h 23m
1 stop
ONT11:28 amOntario
Nov 28
ONT12:58 amOntario
15h 12m
1 stop
TYS7:10 pmKnoxville McGhee Tyson
$313
Find similar
Frontier
Dec 21
TYS4:26 pmKnoxville McGhee Tyson
10h 33m
1 stop
ONT11:59 pmOntario
Dec 25
ONT6:45 amOntario
5h 46m
1 stop
TYS3:31 pmKnoxville McGhee Tyson
$400
Find similar

Delta flights from Knoxville to Ontario

Our best Delta deals on Knoxville to Ontario flight tickets
Delta
Feb 28
TYS2:30 pmKnoxville McGhee Tyson
9h 44m
1 stop
ONT9:14 pmOntario
Mar 4
ONT10:30 pmOntario
7h 43m
1 stop
TYS9:13 amKnoxville McGhee Tyson
$319
Find similar
Delta
Feb 28
TYS5:00 pmKnoxville McGhee Tyson
7h 14m
1 stop
ONT9:14 pmOntario
Mar 4
ONT5:05 pmOntario
13h 08m
2 stops
TYS9:13 amKnoxville McGhee Tyson
$324
Find similar
Delta
Dec 6
TYS12:49 pmKnoxville McGhee Tyson
12h 16m
2 stops
ONT10:05 pmOntario
Dec 9
ONT6:00 amOntario
11h 05m
2 stops
TYS8:05 pmKnoxville McGhee Tyson
$329
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 October 30, 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

Fri 12/5

5:56 pm-2:25 pm

2 stops23h 29m

Ontario

Mon 12/8

6:15 am-5:02 pm

1 stop7h 47m

$305

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 11/22

8:05 pm-11:28 am

1 stop18h 23m

Ontario

Fri 11/28

12:58 am-7:10 pm

1 stop15h 12m

$313

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 2/28

2:30 pm-9:14 pm

1 stop9h 44m

Ontario

Wed 3/4

10:30 pm-9:13 am

1 stop7h 43m

$319

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Mon 12/15

8:00 am-2:04 pm

1 stop9h 04m

Ontario

Fri 12/19

6:00 am-5:02 pm

1 stop8h 02m

$322

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 2/28

5:00 pm-9:14 pm

1 stop7h 14m

Ontario

Wed 3/4

5:05 pm-9:13 am

2 stops13h 08m

$324

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 12/13

4:31 pm-9:07 pm

1 stop7h 36m

Ontario

Fri 12/26

2:42 pm-11:45 pm

1 stop6h 03m

$368

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 12/13

6:40 am-4:02 pm

2 stops12h 22m

Ontario

Fri 12/26

2:42 pm-11:45 pm

1 stop6h 03m

$373

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Mon 3/2

1:55 pm-10:57 pm

2 stops12h 02m

Ontario

Sat 3/7

11:50 pm-10:19 am

1 stop6h 29m

$404

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 1/7

4:25 pm-8:58 pm

1 stop7h 33m

Ontario

Wed 1/14

5:05 am-9:02 pm

2 stops12h 57m

$414

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 3/14

7:50 am-3:55 pm

1 stop11h 05m

Ontario

Thu 3/19

9:55 pm-12:45 pm

2 stops11h 50m

$488

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 $288. 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 October 2025, prices for Knoxville to Ontario flights are approximately 19% cheaper 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

Direct flights

None
There are no direct flights from Knoxville to Ontario. There are no popular flight routes from Knoxville to Ontario.
Search flight deals

  • 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 06m.

  • 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
3,122 reviews
Search Frontier flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.9
7,998 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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