Cheap Flights from San Diego (SAN) to Carbondale (MDH)

Popular airlines from San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois)

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Alternative airports near Carbondale

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

Select flight to Williamson County Regional MWA. Cheapest option available. Average driving time to city center is 19 minutes. Flights from $401
MWA
Williamson County Regional
Cheapest
Average driving time to city center19 min
Flights from $401

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois) cost?
Secure a cheap one-way flight or cheap return flight from San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois) 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 San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois)?
is the least expensive month to fly from SAN to MDH. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SAN to MDH flight.
How many flights per day from San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois)?
There aren't any daily nonstop flights available from San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from SAN to MDH?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, carrier 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 San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois)?
To avoid possible delays on the San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois) route, aim to 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 San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois) last-minute?
Last-minute bookings from SAN to MDH are typically more expensive. To secure the lowest rates, start looking for flights well in advance. That being said, if you're flexible with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a SAN to MDH flight and hotel package?
You'll generally save money by securing a SAN to MDH flight and hotel package compared to booking separately. In fact, you 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 adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Carbondale, IL (MDH-Southern Illinois)?
In most instances, you can cancel or modify your SAN to MDH flight. However, additional charges may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like further details, head to our Customer Service portal.

Travel information

Travel information

Origin airport
San Diego Intl.
Destination airport
Southern Illinois
Distance
1608 mi

Book with confidence

Book with confidence

San Diego to Carbondale Flights

The cheapest times to fly from San Diego to Carbondale

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

 

The best time to book a flight from San Diego to Carbondale

Sunday is one of the best days to book for cheap flights from San Diego to Carbondale: 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 San Diego to Carbondale

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 San Diego to Carbondale 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 San Diego to Carbondale 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 San Diego to Carbondale 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.

 

San Diego to Carbondale Flights

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