$337 Cheap Flights from Moline (MLI) to Ontario (ONT)

View $337 flight on Tue, Feb 3, 2026Opens in a new window

Popular airlines from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Moline to Ontario (MLI-ONT)

Prices were available within the past 7 days and start at $337 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Dec 14 - Thu, Dec 25
MLI
Moline
ONT
Ontario
$289 Roundtrip, found 4 hours ago
$289
Roundtrip
found 4 hours ago
Select Delta flight, departing Sun, Dec 14 from Moline to Ontario, returning Thu, Dec 25, priced at $289 found 4 hours ago
American Airlines
Wed, Feb 25 - Mon, Mar 2
MLI
Moline
ONT
Ontario
$294 Roundtrip, found 8 hours ago
$294
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Wed, Feb 25 from Moline to Ontario, returning Mon, Mar 2, priced at $294 found 8 hours ago
United
Wed, Feb 25 - Mon, Mar 2
MLI
Moline
ONT
Ontario
$299 Roundtrip, found 8 hours ago
$299
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Feb 25 from Moline to Ontario, returning Mon, Mar 2, priced at $299 found 8 hours ago
Delta
Thu, Dec 4 - Sun, Dec 7
MLI
Moline
ONT
Ontario
$314 Roundtrip, found 7 hours ago
$314
Roundtrip
found 7 hours ago
Select Delta flight, departing Thu, Dec 4 from Moline to Ontario, returning Sun, Dec 7, priced at $314 found 7 hours ago
United
Mon, Mar 9 - Sun, Mar 15
MLI
Moline
ONT
Ontario
$319 Roundtrip, found 3 hours ago
$319
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Mar 9 from Moline to Ontario, returning Sun, Mar 15, priced at $319 found 3 hours ago
American Airlines
Wed, Nov 26 - Wed, Dec 3
MLI
Moline
ONT
Ontario
$324 Roundtrip, found 3 hours ago
$324
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Nov 26 from Moline to Ontario, returning Wed, Dec 3, priced at $324 found 3 hours ago
United
Wed, Feb 25 - Mon, Mar 2
MLI
Moline
ONT
Ontario
$324 Roundtrip, found 8 hours ago
$324
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Feb 25 from Moline to Ontario, returning Mon, Mar 2, priced at $324 found 8 hours ago
United
Thu, Jan 29 - Tue, Feb 3
MLI
Moline
ONT
Ontario
$329 Roundtrip, found 6 hours ago
$329
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Jan 29 from Moline to Ontario, returning Tue, Feb 3, priced at $329 found 6 hours ago
United
Wed, Feb 25 - Mon, Mar 2
MLI
Moline
ONT
Ontario
$339 Roundtrip, found 8 hours ago
$339
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Feb 25 from Moline to Ontario, returning Mon, Mar 2, priced at $339 found 8 hours ago
Alaska Airlines
Mon, Mar 9 - Sun, Mar 15
MLI
Moline
ONT
Ontario
$669 Roundtrip, found 3 hours ago
$669
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Mon, Mar 9 from Moline to Ontario, returning Sun, Mar 15, priced at $669 found 3 hours ago

Find the cheapest month to fly from Moline (MLI) to Ontario (ONT)

August is typically the cheapest month to fly

From $288 - $591 per traveler.

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 $324
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $324
Flights from Moline (MLI) to Ontario (ONT)
Origin airport
Quad City Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$288
Distance
1557 mi

Moline to Ontario Flights

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

 

The best time to book a flight from Moline to Ontario

Sunday is one of the best days to book for cheap flights from Moline 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 Moline 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 Moline to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $337 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 Moline 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 Moline 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.

 

Frequently asked questions

How much does a flight from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Snag a cheap one-way flight from $337 or cheap return flight from $289 from Quad City Intl. Airport (MLI) 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 deals on this route.
What is the cheapest month to fly from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT)?
Traveling in December may help you find better deals, as it's the cheapest month for flights between MLI and ONT. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from MLI to ONT. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT)?
You'll need to take a flight with a layover if you're traveling from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from MLI to ONT?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT)?
Opt for a flight from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT) that leaves before 3 PM to reduce the risk of delays and cancellations. Later departures are on average 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 Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute bookings from MLI to ONT are usually more expensive. To lock in the best prices, start looking for flights early. That being said, if your travel plans are flexible, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book a MLI to ONT flight and hotel package?
You'll typically save money by securing a MLI to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal flights and accommodations, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from Quad City Intl. Airport (MLI) to Los Angeles - Ontario Intl. Airport (ONT)?
Typically, you can reschedule or cancel your MLI to ONT flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like more details, visit our Customer Service portal.

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*Available to One Key members.