$134 Cheap Delta flights Tulsa (TUL) to Ontario (ONT)

View $134 flight on Tue, Oct 28, 2025Opens in a new window

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$134 Cheap Delta flights Tulsa (TUL) to Ontario (ONT)

Prices were available within the past 7 days and start at $134 for one-way flights and $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Aug 6 - Tue, Aug 19
TUL
Tulsa
ONT
Ontario
$267 Roundtrip, found 2 hours ago
$267
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Aug 6 from Tulsa to Ontario, returning Tue, Aug 19, priced at $267 found 2 hours ago
Delta
Sat, Aug 16 - Sun, Aug 31
TUL
Tulsa
ONT
Ontario
$272 Roundtrip, found 3 days ago
$272
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug 16 from Tulsa to Ontario, returning Sun, Aug 31, priced at $272 found 3 days ago
Delta
Wed, Aug 6 - Tue, Aug 19
TUL
Tulsa
ONT
Ontario
$293 Roundtrip, found 2 hours ago
$293
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Aug 6 from Tulsa to Ontario, returning Tue, Aug 19, priced at $293 found 2 hours ago
Delta
Wed, Aug 6 - Tue, Aug 19
TUL
Tulsa
ONT
Ontario
$295 Roundtrip, found 2 hours ago
$295
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Aug 6 from Tulsa to Ontario, returning Tue, Aug 19, priced at $295 found 2 hours ago
Delta
Wed, Jul 30 - Wed, Aug 6
TUL
Tulsa
ONT
Ontario
$296 Roundtrip, found 3 hours ago
$296
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Jul 30 from Tulsa to Ontario, returning Wed, Aug 6, priced at $296 found 3 hours ago
Flights from Tulsa (TUL) to Ontario (ONT)
Origin airport
Tulsa Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Popular airline
American Airlines
Distance
1232 mi

Frequently asked questions

How much is a Delta Air Lines flight from Tulsa Intl. Airport (TUL) to Los Angeles - Ontario Intl. Airport (ONT)?
Set the "Price (lowest to highest)" filter on Expedia to look for cheap Delta Air Lines round-trip flights from $267 from TUL to ONT. Affordable one-way tickets from $134 are also on offer.**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 TUL to ONT with Delta Air Lines?
Browse for one-way or return flights to Ontario in January or April. You could find an affordable fare with Delta Air Lines during these off-peak travel months.
What is the cheapest time to book flights from Tulsa Intl. Airport (TUL) to Los Angeles - Ontario Intl. Airport (ONT) with Delta Air Lines?
Begin your search one to three months ahead of your departure date to score cheaper fares on Delta Air Lines flights from Tulsa Intl. Airport (TUL) to Los Angeles - Ontario Intl. Airport (ONT). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut 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 your timing spot on, and you can enjoy significant savings on domestic trips.*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 Tulsa Intl. Airport (TUL) to Los Angeles - Ontario Intl. Airport (ONT)?
Fill in your dates, click search and tick the "Nonstop" filter on Expedia to find any direct flights from TUL to ONT with Delta Air Lines or another airline.
What is the earliest Delta Air Lines flight from TUL to ONT?
Filter your results by "Morning" and "Early Morning" to see the earliest flights from TUL to ONT. Heading off early means you're less likely to experience cancellations.**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?
Take a Delta Air Lines flight from Tulsa Intl. Airport (TUL) to Ontario, and you'll likely touch down at Los Angeles - Ontario Intl. Airport (ONT). This is the airline's primary hub in this destination.
Why fly with Delta Air Lines from TUL to ONT?
Traveling from TUL to ONT with Delta Air Lines comes with a host of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That's on top of the Delta SkyMiles points you can earn with Delta Air Lines.*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 Tulsa Intl. Airport (TUL) to Los Angeles - Ontario Intl. Airport (ONT)?
Depending on the type of ticket you purchased, a fee generally applies if you cancel or change your flight more than 24 hours after it's confirmed. To find flexible plane tickets, select our "Changes included" or "No cancel fee" filter when looking for flights. For additional information on canceling or modifying your reservation, go to "Trips," select your flight and tick "Manage Booking."

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