Route guide · 271 miles
Cheap Flights from Chicago to Louisville
MDW → SDF · Nonstop 1h 3m · Live round-trip fares
Looking for cheap flights from Chicago to Louisville? You're in the right place. Airfare Deal tracks live fares on this 271-mile route around the clock. As a rule of thumb, booking 2–4 weeks ahead lands the best prices — and a free fare alert means you never have to keep refreshing the page.
Live fares for MDW → SDF are updating. Use the search below for real-time prices.
Search live pricesCheapest recent fare
See live fares
Updated daily
Flight time
1h 3m
Nonstop, typical
Distance
271 mi
MDW → SDF
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
Southwest Airlines
Nonstop flights from Chicago to Louisville
Want to skip the layover? Nonstops from Chicago to Louisville are flown by Southwest Airlines, getting you there in about 1h 3m. For the lowest fares, book around 2–4 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Chicago → Louisville
- Distance: 271 miles · nonstop flight time: 1h 3m.
- Cheapest upcoming week in the live data starts around Oct 15, with fares from $283.
- Rule of thumb for this route: the sweet spot is usually 2–4 weeks before departure.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Price trend
Cheapest departure weeks ahead
Near-term departures around Oct 15 are currently the cheapest on this route. Based on recent fares found for this route; prices change quickly.
Cheapest month · Chicago → Louisville
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$283
Cheapest: Tue, Oct 20 — $283 · Priciest: Oct 19 — $316
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
Free fare alerts
Watch Chicago (MDW) → Louisville (SDF)
We check this route's fares daily. The moment the price drops, we'll email you — free, unsubscribe anytime.
Talk to a real person
Get Chicago → Louisville flights confirmed by phone
Fares move fast. Call us and we'll confirm the latest price for your dates — or drop your number and we'll call you back. Free, no payment taken on the call.
Request a callback
Flying from Chicago to Louisville: what you need to know
The flight
Chicago to Louisville is a short hop — 271 miles, about 1h 3m gate to gate on a nonstop. You'll spend almost as long taxiing and boarding as you will in the air, so the real time-saver on this route is picking flight times that dodge rush hour at both ends.
Airlines on this route
Southwest Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Chicago (MDW)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Chicago airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Louisville (SDF)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Louisville airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Louisville to Chicago fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 271 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
- Flexible dates? Search a few days either side — one day can change the fare a lot.
- Morning flights are delayed less often than evening ones — earlier departures have the best on-time record.
- Basic economy fares often exclude checked bags and seat selection. Price the whole trip, not the headline fare.
Chicago to Louisville flight FAQs
How long is the flight from MDW to SDF?
Plan on about 1h 3m in the air for a nonstop from Chicago to Louisville — the route runs roughly 271 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Chicago to Louisville?
Yes — look for Southwest Airlines on this route. Nonstop seats are usually priced best 2–4 weeks before departure.
What is the cheapest month to fly from Chicago to Louisville?
Fares from Chicago to Louisville tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from MDW to SDF?
Book inside the final week and you'll usually pay a premium on MDW to SDF. Fares booked 2–4 weeks ahead are almost always kinder.
What is a good round-trip deal from Chicago to Louisville?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Chicago to Louisville?
The main carriers on this route are Southwest Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Chicago airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
More cheap flights from Chicago
How Airfare Deal works — Airfare Deal is a free fare-search and enquiry service. We take no payment online; send an enquiry and our travel team confirms your fare before you pay anything.