Cheap flights from Ontario to Knoxville from $130
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 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to Knoxville
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Ontario to Knoxville
All round-trip flight deals to Knoxville
Frontier flights from Ontario to Knoxville
Our best Frontier deals on Ontario to Knoxville flight tickets
United Airlines flights from Ontario to Knoxville
Our best United Airlines deals on Ontario to Knoxville flight tickets
See travel insights to Knoxville from
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?
The month of August is, on average, the cheapest month to fly to Knoxville from Ontario, with most prices found around $358. If you aren’t able to travel during the month of August, then book flights to Knoxville from Ontario during September instead. Flights to Knoxville in September, while not as cheap as those in August, still average around $374.
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?
We recommend purchasing flights from Ontario to Knoxville 47 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Knoxville for $389. Keep in mind that you might also find cheap flights to Knoxville outside of this time window. In fact, momondo users recently found flights from Ontario to Knoxville for $184.
Can stopping save me money on Ontario to Knoxville flights?
You could potentially save up to 28% on your flight if you consider stops on a Ontario to Knoxville flight.
How have Ontario to Knoxville flight prices changed over time?
As of January 2025, prices for Ontario to Knoxville flights are approximately 172% more expensive when compared to flights at the same time last year.
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
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 5h 39m 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 4 operators available for flights from Ontario Airport to Knoxville McGhee Tyson Airport as of January 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 73% of all bookings. The subsequent popular airlines are Delta at 14%, Frontier at 9%, and United Airlines at 4%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $158 | Free Cancellation | Rating 6.1 3,454 reviews | |||
| PriceFrom $257 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $287 | Free Cancellation | Rating 8.0 8,536 reviews | |||
| PriceFrom $323 | Free Cancellation | Rating 7.4 8,968 reviews |
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.