$937 Cheap Flights from Daegu (TAE) to Ontario (ONT)

View $937 flight on Mon, Jun 1, 2026Opens in a new window

Popular airlines from Daegu (TAE-Daegu Intl.) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Daegu to Ontario (TAE-ONT)

Prices were available within the past 7 days and start at $937 for one-way flights and $1,537 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,537 Roundtrip, found 3 days ago
$1,537
Roundtrip
found 3 days ago
Select Korean Air flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,537 found 3 days ago
Delta
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,538 Roundtrip, found 3 days ago
$1,538
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,538 found 3 days ago
Korean Air
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,703 Roundtrip, found 3 days ago
$1,703
Roundtrip
found 3 days ago
Select Korean Air flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,703 found 3 days ago
Delta
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,724 Roundtrip, found 3 days ago
$1,724
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,724 found 3 days ago
Delta
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,840 Roundtrip, found 3 days ago
$1,840
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,840 found 3 days ago
Delta
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,851 Roundtrip, found 3 days ago
$1,851
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,851 found 3 days ago
Korean Air
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,889 Roundtrip, found 3 days ago
$1,889
Roundtrip
found 3 days ago
Select Korean Air flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,889 found 3 days ago
Delta
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$1,958 Roundtrip, found 3 days ago
$1,958
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $1,958 found 3 days ago
Delta
Mon, Jun 1 - Tue, Jun 2
TAE
Daegu
ONT
Ontario
$2,007 Roundtrip, found 3 days ago
$2,007
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Jun 1 from Daegu to Ontario, returning Tue, Jun 2, priced at $2,007 found 3 days ago
Korean Air
Sat, May 30 - Sat, Jun 13
TAE
Daegu
ONT
Ontario
$2,012 Roundtrip, found 3 days ago
$2,012
Roundtrip
found 3 days ago
Select Korean Air flight, departing Sat, May 30 from Daegu to Ontario, returning Sat, Jun 13, priced at $2,012 found 3 days ago

Frequently asked questions

How much does a flight from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Snag a cheap one-way flight from $937 or cheap return flight from $1,537 from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT)?
Planning your trip for June is a good way to save, as it's the cheapest month for flights between TAE and ONT. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline flying from TAE to ONT, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT)?
There are no daily nonstop flights departing from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from TAE to ONT?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid possible delays on the Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT) route, fly before 3 PM. Departures after this hour are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute fares from TAE to ONT are generally more expensive. To lock in the best rates, start looking for flights as soon as possible. That being said, if you're flexible with your travel plans, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a TAE to ONT flight and hotel package?
Compared with arranging hotels and flights separately, booking a TAE to ONT flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place takes the hassle out of travel planning. Simply secure your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Daegu Intl. Airport (TAE) to Los Angeles - Ontario Intl. Airport (ONT)?
If you reserved your TAE to ONT flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Daegu Intl.
Destination airport
Los Angeles - Ontario Intl.
Roundtrip price
$1,537
Distance
5988 mi

Book with confidence

Daegu to Ontario Flights

The cheapest times to fly from Daegu to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Daegu to Ontario are during the month of June. You can find some of the cheapest flights from Daegu to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Daegu to Ontario

Sunday is one of the best days to book for cheap flights from Daegu to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Daegu to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Daegu to Ontario in 2026. You can also book with separate airlines for your outbound and return journeys, from $937 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Daegu to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Daegu to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Daegu to Ontario Flights

*Flight schedules are subject to change.

*Available to One Key members.