$333 Cheap Flights from Springfield (SPI) to Ontario (ONT)

View $333 flight on Wed, Dec 24, 2025Opens in a new window

Popular airlines from Springfield, IL (SPI-Abraham Lincoln Capital) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Springfield to Ontario (SPI-ONT)

Prices were available within the past 7 days and start at $333 for one-way flights and $441 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct 29 - Mon, Nov 3
SPI
Springfield
ONT
Ontario
$441 Roundtrip, found 13 hours ago
$441
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Springfield to Ontario, returning Mon, Nov 3, priced at $441 found 13 hours ago
American Airlines
Wed, Oct 29 - Mon, Nov 3
SPI
Springfield
ONT
Ontario
$484 Roundtrip, found 13 hours ago
$484
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Springfield to Ontario, returning Mon, Nov 3, priced at $484 found 13 hours ago
American Airlines
Fri, Oct 17 - Sat, Oct 18
SPI
Springfield
ONT
Ontario
$508 Roundtrip, found 1 day ago
$508
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Oct 17 from Springfield to Ontario, returning Sat, Oct 18, priced at $508 found 1 day ago
American Airlines
Wed, Oct 29 - Mon, Nov 3
SPI
Springfield
ONT
Ontario
$510 Roundtrip, found 13 hours ago
$510
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Springfield to Ontario, returning Mon, Nov 3, priced at $510 found 13 hours ago
American Airlines
Thu, Oct 23 - Sun, Oct 26
SPI
Springfield
ONT
Ontario
$514 Roundtrip, found 3 days ago
$514
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Oct 23 from Springfield to Ontario, returning Sun, Oct 26, priced at $514 found 3 days ago
American Airlines
Wed, Oct 29 - Mon, Nov 3
SPI
Springfield
ONT
Ontario
$531 Roundtrip, found 13 hours ago
$531
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Springfield to Ontario, returning Mon, Nov 3, priced at $531 found 13 hours ago
American Airlines
Fri, May 22 - Fri, May 29
SPI
Springfield
ONT
Ontario
$534 Roundtrip, found 5 days ago
$534
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, May 22 from Springfield to Ontario, returning Fri, May 29, priced at $534 found 5 days ago
American Airlines
Sat, Oct 4 - Tue, Oct 7
SPI
Springfield
ONT
Ontario
$549 Roundtrip, found 8 hours ago
$549
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Sat, Oct 4 from Springfield to Ontario, returning Tue, Oct 7, priced at $549 found 8 hours ago
American Airlines
Wed, Oct 29 - Mon, Nov 3
SPI
Springfield
ONT
Ontario
$553 Roundtrip, found 13 hours ago
$553
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Springfield to Ontario, returning Mon, Nov 3, priced at $553 found 13 hours ago
American Airlines
Thu, Oct 2 - Mon, Oct 6
SPI
Springfield
ONT
Ontario
$557 Roundtrip, found 8 hours ago
$557
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Thu, Oct 2 from Springfield to Ontario, returning Mon, Oct 6, priced at $557 found 8 hours ago

Alternative airports near Ontario

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

Select flight to Los Angeles - Ontario Intl. ONT. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $549
ONT
Los Angeles - Ontario Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $549
Flights from Springfield (SPI) to Ontario (ONT)
Origin airport
Abraham Lincoln Capital
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines
Roundtrip price
$441
Distance
1585 mi

Springfield to Ontario Flights

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

 

The best time to book a flight from Springfield to Ontario

Sunday is one of the best days to book for cheap flights from Springfield 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 Springfield 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 Springfield to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $333 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 Springfield 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 Springfield 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 Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Grab a cheap one-way flight from $333 or cheap return flight from $441 from Abraham Lincoln Capital Airport (SPI) 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 Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT)?
The cheapest month to fly from SPI to ONT is October, when demand is low. Off-peak months are often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline flying from SPI to ONT, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT)?
Direct flights from Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SPI to ONT?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT)?
Opt for a flight from Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT) that leaves before 3 PM to reduce the likelihood 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 Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute bookings from SPI to ONT are generally more expensive. To secure the cheapest rates, start searching for flights ahead of time. That being said, if you're flexible with your travel plans, you may score a cheap fare right before your journey.
Is it cheaper to book a SPI to ONT flight and hotel package?
Compared with arranging hotels and flights separately, booking a SPI to ONT flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place takes the hassle out of travel planning. Just pick your flights and choose from our wide range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Abraham Lincoln Capital Airport (SPI) to Los Angeles - Ontario Intl. Airport (ONT)?
In most instances, you can cancel or reschedule your SPI to ONT flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need further details, head to our Customer Service portal.

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*Available to One Key members.