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Cheap flights from Knoxville to Los Angeles from $116

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 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Frontier Logo
8:32 pm - 10:03 am
TYS
-
ONT
16h 31m
1 stop
Frontier Logo
6:00 am - 7:36 pm
ONT
-
TYS
10h 36m
1 stop
$240Frontier
Wed, Jul 22 - Wed, Jul 29
Frontier Logo
8:32 pm - 10:05 am
TYS
-
ONT
16h 33m
1 stop
Frontier Logo
6:00 am - 7:37 pm
ONT
-
TYS
10h 37m
1 stop
$260Frontier
Fri, Jun 5 - Fri, Jun 12
Frontier Logo
8:32 pm - 10:05 am
TYS
-
ONT
16h 33m
1 stop
Frontier Logo
6:00 am - 7:37 pm
ONT
-
TYS
10h 37m
1 stop
$263Frontier
Fri, Aug 21 - Fri, Aug 28
Frontier Logo
8:32 pm - 10:05 am
TYS
-
ONT
16h 33m
1 stop
Frontier Logo
6:00 am - 7:37 pm
ONT
-
TYS
10h 37m
1 stop
$280Frontier
Fri, Jun 19 - Fri, Jun 26
Frontier Logo
8:32 pm - 10:05 am
TYS
-
ONT
16h 33m
1 stop
Frontier Logo
6:00 am - 7:37 pm
ONT
-
TYS
10h 37m
1 stop
$304Frontier
Fri, Jun 26 - Wed, Jul 1
Frontier Logo
8:32 pm - 10:05 am
TYS
-
ONT
16h 33m
1 stop
Frontier Logo
6:00 am - 7:37 pm
ONT
-
TYS
10h 37m
1 stop
$339Frontier
Mon, Jun 8 - Wed, Jun 24
Frontier Logo
8:32 pm - 10:05 am
TYS
-
ONT
16h 33m
1 stop
Frontier Logo
6:00 am - 7:36 pm
ONT
-
TYS
10h 36m
1 stop
$344Frontier
Fri, Jul 3 - Fri, Jul 10
Multiple Airlines Logo
2:46 pm - 7:32 pm
TYS
-
ONT
7h 46m
1 stop
Multiple Airlines Logo
3:34 pm - 11:59 am
ONT
-
TYS
41h 25m
2 stops
$358Multiple Airlines
Mon, Jun 8 - Wed, Jun 24
American Airlines Logo
6:00 am - 11:48 am
TYS
-
ONT
8h 48m
1 stop
American Airlines Logo
7:20 am - 7:20 pm
ONT
-
TYS
9h 00m
1 stop
$359American Airlines
Sat, Sep 19 - Tue, Sep 22
American Airlines Logo
6:07 pm - 10:36 pm
TYS
-
ONT
7h 29m
1 stop
American Airlines Logo
11:59 pm - 11:13 am
ONT
-
TYS
8h 14m
1 stop
$364American Airlines
Wed, May 27 - Tue, Jun 2

Frontier flights from Knoxville to Ontario

Our best Frontier deals on Knoxville to Ontario flight tickets
Frontier
Jul 22
TYS8:32 pmKnoxville McGhee Tyson
16h 31m
1 stop
ONT10:03 amOntario
Jul 29
ONT6:00 amOntario
10h 36m
1 stop
TYS7:36 pmKnoxville McGhee Tyson
$240
Frontier
Jun 5
TYS8:32 pmKnoxville McGhee Tyson
16h 33m
1 stop
ONT10:05 amOntario
Jun 12
ONT6:00 amOntario
10h 37m
1 stop
TYS7:37 pmKnoxville McGhee Tyson
$260
Frontier
Aug 21
TYS8:32 pmKnoxville McGhee Tyson
16h 33m
1 stop
ONT10:05 amOntario
Aug 28
ONT6:00 amOntario
10h 37m
1 stop
TYS7:37 pmKnoxville McGhee Tyson
$263

American Airlines flights from Knoxville to Ontario

Our best American Airlines deals on Knoxville to Ontario flight tickets
American Airlines
Sep 19
TYS6:00 amKnoxville McGhee Tyson
8h 48m
1 stop
ONT11:48 amOntario
Sep 22
ONT7:20 amOntario
9h 00m
1 stop
TYS7:20 pmKnoxville McGhee Tyson
$359
American Airlines
May 27
TYS6:07 pmKnoxville McGhee Tyson
7h 29m
1 stop
ONT10:36 pmOntario
Jun 2
ONT12:40 pmOntario
8h 16m
1 stop
TYS11:56 pmKnoxville McGhee Tyson
$364
American Airlines
Sep 23
TYS2:17 pmKnoxville McGhee Tyson
8h 38m
1 stop
ONT7:55 pmOntario
Sep 28
ONT11:59 pmOntario
8h 17m
1 stop
TYS11:16 amKnoxville McGhee Tyson
$366

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 May 10, 2026.
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

Cheapest round-trip

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 7/22

8:32 pm-10:03 am

1 stop16h 31m

Ontario

Wed 7/29

6:00 am-7:36 pm

1 stop10h 36m

$240

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 6/5

8:32 pm-10:05 am

1 stop16h 33m

Ontario

Fri 6/12

6:00 am-7:37 pm

1 stop10h 37m

$260

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 8/21

8:32 pm-10:05 am

1 stop16h 33m

Ontario

Fri 8/28

6:00 am-7:37 pm

1 stop10h 37m

$263

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 6/19

8:32 pm-10:05 am

1 stop16h 33m

Ontario

Fri 6/26

6:00 am-7:37 pm

1 stop10h 37m

$280

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 6/26

8:32 pm-10:05 am

1 stop16h 33m

Ontario

Wed 7/1

6:00 am-7:37 pm

1 stop10h 37m

$304

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Mon 6/8

8:32 pm-10:05 am

1 stop16h 33m

Ontario

Wed 6/24

6:00 am-7:37 pm

1 stop10h 37m

$339

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 7/3

8:32 pm-10:05 am

1 stop16h 33m

Ontario

Fri 7/10

6:00 am-7:36 pm

1 stop10h 36m

$344

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Mon 6/8

2:46 pm-7:32 pm

1 stop7h 46m

Ontario

Wed 6/24

3:34 pm-11:59 am

2 stops41h 25m

$358

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 9/19

6:00 am-11:48 am

1 stop8h 48m

Ontario

Tue 9/22

7:20 am-7:20 pm

1 stop9h 00m

$359
Quickest round-trip

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 5/27

6:07 pm-10:36 pm

1 stop7h 29m

Ontario

Tue 6/2

11:59 pm-11:13 am

1 stop8h 14m

$364

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

What is the cheapest month to fly to Ontario?

In general, August 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 $348. If you aren’t able to travel during the month of August, then book flights to Ontario from Knoxville during October instead. Flights to Ontario in October, while not as cheap as those in August, still average around $379.

How have Knoxville to Ontario flight prices changed over time?

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

6h 30m

Direct flights

None
The fastest flight from Knoxville to Ontario takes 6h 30m
There are no direct flights from Knoxville to Ontario. There are no popular flight routes from Knoxville to Ontario.
Search flight deals

Frequently asked questions about flying from Knoxville to Ontario

  • 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 6h 30m.

  • 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
5.6
2,955 reviews
Search Frontier flights
United AirlinesPriceFrom $219Free CancellationRating
7.4
9,700 reviews
Search United Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.9
8,453 reviews
Search Delta flights
American AirlinesPriceFrom $313Free CancellationRating
7.1
11,670 reviews
Search American Airlines 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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