Cheap flights from San Luis Obispo to Illinois from $203
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Luis Obispo to Illinois departing on 7/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Alaska Airlines flights from San Luis Obispo to Illinois
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How to get the cheapest flight ticket from San Luis Obispo to Illinois
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Illinois?
The cheapest month to fly to Illinois from San Luis Obispo is in February. Flight prices, which tend to average around $375, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $424.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from San Luis Obispo to Illinois is on a Thursday when prices can be found for as low as $545. Flights from San Luis Obispo to Illinois on a Friday will generally be more expensive and average around $752. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest airline that flies from San Luis Obispo County to Illinois?
American Airlines, United Airlines, and Alaska Airlines are the most popular carriers operating from San Luis Obispo County to Illinois
What airlines fly to Illinois?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Illinois from San Luis Obispo according to our data. American Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
Cheap San Luis Obispo to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Luis Obispo to Illinois
When did momondo last update prices for flights from San Luis Obispo County Airport to Illinois?
Prices for flights from San Luis Obispo County Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from San Luis Obispo County Airport to Illinois?
The number of operators available for flights from San Luis Obispo County Airport to Illinois is 2 as of July 2025.
How old do you have to be to fly from San Luis Obispo County Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Luis Obispo County Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from San Luis Obispo to Illinois
Compare and see reviews for airlines that fly from San Luis Obispo to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $362 | Free Cancellation | Rating 7.4 8,846 reviews | |||
| PriceFrom $362 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from San Luis Obispo to Illinois?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Luis Obispo to Illinois. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from San Luis Obispo to Illinois with flexible booking policies on momondo?
momondo does allow users to show only those flights to Illinois from San Luis Obispo which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from San Luis Obispo to Illinois?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Luis Obispo to Illinois.
I’m not ready to book a flight from San Luis Obispo to Illinois right now. Can momondo alert me if prices change?
If you are not ready to book a flight from San Luis Obispo to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.