What are the cheapest airlines to fly from Knoxville to Riverside one-way?

$74 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $158 and $172, respectively.

In terms of precipitation, rainfall in Riverside ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit Riverside when rainfall is around 0.0 in.

If weather is an important factor for your trip to Riverside, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

What are the most popular airlines that fly from Knoxville to Riverside?

Consider American Airlines, United Airlines or Delta when booking your flight. These represent the most popular airlines when flying from Knoxville to Riverside.

What is the cheapest time of day to fly from TYS to R1V?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to Riverside as you normally would.

What airport do you fly from for flights from Knoxville to Riverside?

For a flight from Knoxville to Riverside, you will be flying from McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 outbound flights to Riverside per day. 5 airlines have flights to Riverside from Knoxville McGhee Tyson on a regular basis.

Can I find deals for flights from Knoxville to Riverside that include hotel bookings?

Yes. In addition to deals on Knoxville to Riverside flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Knoxville to Riverside?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Riverside.

Can I find deals for business class flights from Knoxville to Riverside?

Yes. Cheapflights offers flight deals from Knoxville to Riverside by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Knoxville to Riverside

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Find flight deals from Knoxville to Riverside

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	November
Cheapest in	February
Average price	$449

Provider with most accurate pricing for Knoxville McGhee Tyson-Los Angeles flight deals.

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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Los Angeles flights.

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Highest demand for flights based on searches. 9% potential increase in price ($50 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Reviews of airlines servicing Riverside

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Knoxville to Riverside to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,211 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Southwest

7.9

Good

4,211 reviews

Southwest

7.9

Good

4,211 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Delta

7.8

Good

8,650 reviews

Southwest

7.9

Good

4,211 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

United Airlines

7.3

Good

10,388 reviews

Southwest

7.9

Good

4,211 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

American Airlines

7.0

Good

12,181 reviews

Southwest

7.9

Good

4,211 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Frontier

5.5

Fair

2,523 reviews

Southwest

7.9

Good

4,211 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Related info for your journey

What airport do you fly from for flights from Knoxville to Riverside?
For a flight from Knoxville to Riverside, you will be flying from McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 outbound flights to Riverside per day. 5 airlines have flights to Riverside from Knoxville McGhee Tyson on a regular basis.
What are the cheapest airlines to fly from Knoxville to Riverside one-way?
$74 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $158 and $172, respectively.
Can I find deals for flights from Knoxville to Riverside that include hotel bookings?
Yes. In addition to deals on Knoxville to Riverside flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Knoxville to Riverside?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Riverside.
Can I find deals for business class flights from Knoxville to Riverside?
Yes. Cheapflights offers flight deals from Knoxville to Riverside by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 5 airlines flying from Knoxville to Riverside

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$141	Average$318	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$228	Average$496	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$250	Average$479	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$299	Average$528	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$362	Average$515	FlexibilityNo cancel fee	On-time63%

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Find cheap flights from Knoxville to Riverside with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Knoxville to Riverside

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Riverside

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Knoxville to Riverside to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Knoxville to Riverside?

What are the cheapest airlines to fly from Knoxville to Riverside one-way?

Can I find deals for flights from Knoxville to Riverside that include hotel bookings?

How can I find direct flights from Knoxville to Riverside?

Can I find deals for business class flights from Knoxville to Riverside?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Riverside

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Riverside by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Knoxville to Riverside by cabin class

Find flights from Knoxville to Riverside, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Knoxville and Riverside flights

Browse other Knoxville and Riverside flight options. Last updated on October 20, 2026.

Other flights from Knoxville

Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Knoxville to Riverside flights

Consider these flights traveling from Knoxville to Riverside.

Top 5 airlines flying from Knoxville to Riverside

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Travel Smart

Cheap flights from Knoxville (TYS) to Riverside, CA

Find cheap flights from Knoxville to Riverside with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Knoxville to Riverside

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Riverside

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Knoxville to Riverside to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Knoxville to Riverside?

What are the cheapest airlines to fly from Knoxville to Riverside one-way?

Can I find deals for flights from Knoxville to Riverside that include hotel bookings?

How can I find direct flights from Knoxville to Riverside?

Can I find deals for business class flights from Knoxville to Riverside?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Riverside

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Riverside by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Knoxville to Riverside by cabin class

Find flights from Knoxville to Riverside, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Knoxville and Riverside flights

Browse other Knoxville and Riverside flight options. Last updated on October 20, 2026.

Other flights from Knoxville

Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on October 20, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Knoxville to Riverside flights

Consider these flights traveling from Knoxville to Riverside.

Top 5 airlines flying from Knoxville to Riverside

100% Free

Book with Flexibility

Travel Smart