Cheap Flights from Killeen (GRK) to Springfield (SPI)

Popular airlines from Killeen, TX (GRK-Killeen-Fort Hood Regional) to Springfield, IL (SPI-Abraham Lincoln Capital)

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Find available prices by choosing your travel dates.
Flights from Killeen (GRK) to Springfield (SPI)
Origin airport
Killeen-Fort Hood Regional
Destination airport
Abraham Lincoln Capital
Distance
759 mi

Killeen to Springfield Flights

The cheapest times to fly from Killeen to Springfield

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

The best time to book a flight from Killeen to Springfield

Sunday is one of the best days to book for cheap flights from Killeen to Springfield: 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 Killeen to Springfield

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 Killeen to Springfield in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Killeen to Springfield 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 Killeen to Springfield 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

Is it cheaper to buy a plane ticket from GRK to SPI last minute?
When it comes to booking your flights, it pays to be prepared. While it’s possible to score a deal on a Killeen-Fort Hood Regional Airport (GRK) to Abraham Lincoln Capital Airport (SPI) flight at the last minute, fares usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days ahead. For international trips it’s between three and four months.
What airports do you fly into for Springfield from Killeen?
From Killeen, you can fly into Springfield through Abraham Lincoln Capital Airport (SPI), Decatur Airport (DEC) and Greater Peoria Regional Airport (PIA). Find out which airport is right for you before you make a decision. If you opt for Abraham Lincoln Capital Airport (SPI), it’s about 3 mi north of downtown. Use the money you save when booking your journey with Expedia to uncover the city’s popular sights, such as Illinois State Fairgrounds and Abraham Lincoln Presidential Library and Museum.
Can I change the date of my flight from Killeen-Fort Hood Regional Airport (GRK) to SPI?
You can easily make changes to your Killeen-Fort Hood Regional Airport (GRK) to Abraham Lincoln Capital Airport (SPI) ticket by logging in to the Expedia Trips portal. But before you make any amendments, check out the rules and conditions in your itinerary to learn what you’re able to do and if fees apply. Some carriers charge a change fee per person, plus any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also take a look at our Customer Service portal for more handy information and to connect with our Virtual Agent.

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