$171 Cheap Flights from Duluth (DLH) to Ontario (ONT)

View $171 flight on Fri, Oct 31, 2025Opens in a new window

Popular airlines from Duluth, MN (DLH-Duluth Intl.) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Duluth to Ontario (DLH-ONT)

Prices were available within the past 7 days and start at $171 for one-way flights and $284 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Nov 7 - Fri, Nov 14
DLH
Duluth
ONT
Ontario
$284 Roundtrip, found 3 days ago
$284
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 7 from Duluth to Ontario, returning Fri, Nov 14, priced at $284 found 3 days ago
Delta
Sat, Dec 6 - Sun, Dec 7
DLH
Duluth
ONT
Ontario
$289 Roundtrip, found 15 hours ago
$289
Roundtrip
found 15 hours ago
Select Delta flight, departing Sat, Dec 6 from Duluth to Ontario, returning Sun, Dec 7, priced at $289 found 15 hours ago
United
Fri, Nov 7 - Wed, Nov 12
DLH
Duluth
ONT
Ontario
$309 Roundtrip, found 22 hours ago
$309
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Nov 7 from Duluth to Ontario, returning Wed, Nov 12, priced at $309 found 22 hours ago
Delta
Sat, Dec 6 - Fri, Dec 12
DLH
Duluth
ONT
Ontario
$314 Roundtrip, found 15 hours ago
$314
Roundtrip
found 15 hours ago
Select Delta flight, departing Sat, Dec 6 from Duluth to Ontario, returning Fri, Dec 12, priced at $314 found 15 hours ago
Delta
Mon, Dec 1 - Fri, Dec 12
DLH
Duluth
ONT
Ontario
$339 Roundtrip, found 15 hours ago
$339
Roundtrip
found 15 hours ago
Select Delta flight, departing Mon, Dec 1 from Duluth to Ontario, returning Fri, Dec 12, priced at $339 found 15 hours ago
Delta
Sat, Dec 6 - Thu, Dec 11
DLH
Duluth
ONT
Ontario
$364 Roundtrip, found 15 hours ago
$364
Roundtrip
found 15 hours ago
Select Delta flight, departing Sat, Dec 6 from Duluth to Ontario, returning Thu, Dec 11, priced at $364 found 15 hours ago
United
Fri, Nov 7 - Wed, Nov 12
DLH
Duluth
ONT
Ontario
$373 Roundtrip, found 22 hours ago
$373
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Nov 7 from Duluth to Ontario, returning Wed, Nov 12, priced at $373 found 22 hours ago
Delta
Sat, Dec 6 - Sat, Dec 13
DLH
Duluth
ONT
Ontario
$379 Roundtrip, found 1 day ago
$379
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 6 from Duluth to Ontario, returning Sat, Dec 13, priced at $379 found 1 day ago
Delta
Thu, Dec 4 - Tue, Dec 9
DLH
Duluth
ONT
Ontario
$388 Roundtrip, found 15 hours ago
$388
Roundtrip
found 15 hours ago
Select Delta flight, departing Thu, Dec 4 from Duluth to Ontario, returning Tue, Dec 9, priced at $388 found 15 hours ago
Delta
Sat, Nov 15 - Mon, Nov 24
DLH
Duluth
ONT
Ontario
$388 Roundtrip, found 2 days ago
$388
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 15 from Duluth to Ontario, returning Mon, Nov 24, priced at $388 found 2 days ago

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $314
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $314

Frequently asked questions

How much does a flight from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Secure a cheap one-way flight from $171 or cheap return flight from $284 from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT)?
Planning your trip for November is a good way to save, as it's the cheapest month for flights between DLH and ONT. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from DLH to ONT. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT)?
There are no daily nonstop flights departing from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from DLH to ONT?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid potential delays on the Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT) route, fly before 3 PM. Later flights have a 22% higher chance of being 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 Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Holding off until just before your trip to book your flight from DLH to ONT generally means paying more. Although you may find some last-minute offers, they're not always guaranteed. Allow some flexibility in your schedule for the best chance of snagging a bargain.
Is it cheaper to book a DLH to ONT flight and hotel package?
Securing a DLH to ONT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Duluth Intl. Airport (DLH) to Los Angeles - Ontario Intl. Airport (ONT)?
It's generally possible to cancel or reschedule your DLH to ONT flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Duluth Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Delta, United
Roundtrip price
$283
Distance
1589 mi

Book with confidence

Duluth to Ontario Flights

The cheapest times to fly from Duluth 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 Duluth to Ontario are during the month of November. You can find some of the cheapest flights from Duluth to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Duluth to Ontario

Sunday is one of the best days to book for cheap flights from Duluth 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 Duluth 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 Duluth to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $171 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 Duluth 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 Duluth 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.

 

Duluth to Ontario Flights

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*Available to One Key members.