$160 Cheap Delta flights Knoxville (TYS) to Ontario (ONT)

View $160 flight on Wed, Sep 17, 2025Opens in a new window

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$160 Cheap Delta flights Knoxville (TYS) to Ontario (ONT)

Prices were available within the past 7 days and start at $160 for one-way flights and $281 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 21 - Fri, Oct 24
TYS
Knoxville
ONT
Ontario
$281 Roundtrip, just found
$281
Roundtrip
just found
Select Delta flight, departing Tue, Oct 21 from Knoxville to Ontario, returning Fri, Oct 24, priced at $281 just found
Delta
Wed, Sep 17 - Tue, Sep 23
TYS
Knoxville
ONT
Ontario
$289 Roundtrip, just found
$289
Roundtrip
just found
Select Delta flight, departing Wed, Sep 17 from Knoxville to Ontario, returning Tue, Sep 23, priced at $289 just found
Delta
Tue, Oct 7 - Mon, Oct 13
TYS
Knoxville
ONT
Ontario
$312 Roundtrip, found 3 days ago
$312
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 7 from Knoxville to Ontario, returning Mon, Oct 13, priced at $312 found 3 days ago
Flights from Knoxville (TYS) to Ontario (ONT)
Origin airport
McGhee Tyson
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
1897 mi

Frequently asked questions

How much is a Delta Air Lines flight from McGhee Tyson Airport (TYS) to Los Angeles - Ontario Intl. Airport (ONT)?
Landing cheap one-way Delta Air Lines flights from TYS to ONT from $160 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $281 for your next break.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from TYS to ONT with Delta Air Lines?
Browse for one-way or return flights to Ontario in January or April. You could find a cheap fare with Delta Air Lines during these quieter months.
What is the cheapest time to book flights from McGhee Tyson Airport (TYS) to Los Angeles - Ontario Intl. Airport (ONT) with Delta Air Lines?
Start searching one to three months before your departure to get cheap fares on Delta Air Lines flights from McGhee Tyson Airport (TYS) to Los Angeles - Ontario Intl. Airport (ONT). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from McGhee Tyson Airport (TYS) to Los Angeles - Ontario Intl. Airport (ONT)?
Use our "Nonstop" filter when browsing for direct Delta Air Lines flights from TYS to ONT. It's also a great way to compare other airlines servicing the same direct route.
What is the earliest Delta Air Lines flight from TYS to ONT?
Browse Delta Air Lines's earliest flights from TYS to ONT by checking the "Early Morning" and "Morning" filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Ontario?
Catch a Delta Air Lines flight from McGhee Tyson Airport (TYS) to Ontario, and you'll likely land at Los Angeles - Ontario Intl. Airport (ONT). This is the airline's primary hub here.
Why fly with Delta Air Lines from TYS to ONT?
Delta Air Lines makes traveling from TYS to ONT enjoyable with an excellent in-flight experience and a rewarding loyalty program. You may even earn points with Delta SkyMiles. Don't forget to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from McGhee Tyson Airport (TYS) to Los Angeles - Ontario Intl. Airport (ONT)?
In most cases, you can reschedule or cancel your flight, although additional charges may apply if your booking was made over 24 hours ago. Prefer to keep your options open? Apply the "Changes included" and "No cancel fee" filters to find flights that won't penalize you if you need to revise your plans. To modify your booking, visit "Trips," select your flight and click on "Manage Booking" for more information.

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