Cheap Flights to Southeast Illinois , IL from CA $387

View CA $387 flight on Wed, Aug. 27, 2025Opens in a new window

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How much is the cheapest flight to Southeast Illinois?

Prices were available within the past 7 days and start at CA $387 for one-way flights and CA $514 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Sep. 17 - Sat, Sep. 27
YYZ
Toronto
DEC
Decatur
CA $514 Roundtrip, found 2 days ago
CA $514
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Sep. 17 from Toronto to Decatur, returning Sat, Sep. 27, priced at CA $514 found 2 days ago
United
Sun, Aug. 31 - Thu, Sep. 18
YYZ
Toronto
DEC
Decatur
CA $514 Roundtrip, found 2 days ago
CA $514
Roundtrip
found 2 days ago
Select United flight, departing Sun, Aug. 31 from Toronto to Decatur, returning Thu, Sep. 18, priced at CA $514 found 2 days ago
American Airlines
Sat, Nov. 8 - Tue, Nov. 11
YYZ
Toronto
EVV
Evansville
CA $722 Roundtrip, found 20 hours ago
CA $722
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Sat, Nov. 8 from Toronto to Evansville, returning Tue, Nov. 11, priced at CA $722 found 20 hours ago
Delta
Tue, Sep. 9 - Tue, Sep. 16
YYZ
Toronto
EVV
Evansville
CA $722 Roundtrip, just found
CA $722
Roundtrip
just found
Select Delta flight, departing Tue, Sep. 9 from Toronto to Evansville, returning Tue, Sep. 16, priced at CA $722 just found
WestJet
Sat, Nov. 8 - Tue, Nov. 11
YYZ
Toronto
EVV
Evansville
CA $861 Roundtrip, found 20 hours ago
CA $861
Roundtrip
found 20 hours ago
Select WestJet flight, departing Sat, Nov. 8 from Toronto to Evansville, returning Tue, Nov. 11, priced at CA $861 found 20 hours ago

Expedia.ca gives you the best tools to secure great deals on flights to Southeast Illinois. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Southeast Illinois. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Southeast Illinois.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Southeast Illinois flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Southeast Illinois.

Looking to save even more? Get additional savings by bundling your Southeast Illinois flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Southeast Illinois trip!

Frequently asked questions

How do I find cheap flights to Southeast Illinois that have flexible change policies?
Search for your affordable flights to Southeast Illinois, then mark the "No change fee" box directly below the "Flexible change policies" heading. It's as simple as that. We appreciate that plans can change and flexibility is essential, so you can book with confidence with Expedia.
Which airlines fly to Southeast Illinois?
With a good range of airlines that fly into or near Southeast Illinois, the choice is all yours:

  • United Airlines - 12,777 flights to or near Southeast Illinois each month, including 12,777 flights to O'Hare Intl. Airport (ORD) per month.
  • American Airlines - 9,109 flights to or near Southeast Illinois each month, including 9,109 flights to O'Hare Intl. Airport (ORD) per month.
  • Delta - 1,023 flights to or near Southeast Illinois each month, including 1,023 flights to O'Hare Intl. Airport (ORD) per month.

How can I find cheap tickets to Southeast Illinois?
One of the best ways to get a hold of cheap tickets to Southeast Illinois is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. It will reveal the cheapest prices for nearby days. The best price for a flight to Southeast Illinois in the last seven days was CA $514. Booking well ahead of time will generally help you score an even bigger bargain.
How much is a flight to Southeast Illinois?
If you were journeying one way from Toronto (YYZ), you could've picked up a low-cost fare for CA $387 in the last seven days. Return flights to Southeast Illinois ranged from only CA $514 to CA $861 during this same period.
What are the most popular airports to fly into in Southeast Illinois?
Southeast Illinois's main airport is O'Hare Intl. Airport (ORD). Get your next big adventure underway by reserving a ticket on one of the 24,728 flights per month to this destination.
When is the cheapest time to fly to Southeast Illinois?
Try to jet off early on in the week to land the best deal to Southeast Illinois. Tuesday is normally the cheapest day to take off, with Monday right behind it. Saturday often has the highest prices. This is because many people choose to start their vacation on a weekend.
How much is a plane ticket to Southeast Illinois?
In the last seven days, tickets to Southeast Illinois fluctuated between CA $514 and CA $861. Prices tend to go up over time, so pick up a cheap flight today.
What are the best things to do in Southeast Illinois?

  • With so many exciting things to see and do in Olney, it's little surprise that lots of people begin their Southeast Illinois vacation in this bustling city. Spend your first day or so checking out big-name attractions like Olney Central College before taking a look at some of this destination's lesser-known sights.
  • When you're deciding the activities for your vacation, keep in mind that Olney is known for its humid subtropical climate. It's a wise idea to check the temperatures before you leave so you know what to expect.
  • When you want to get out and discover more of the region, jump in one of our car rentals and visit Chicago. It's 354 kilometres to the north of Olney and also has top tourist sights, such as Bachelor's Grove Cemetery.

What is the best time to go to Southeast Illinois?
Anytime is an excellent time to see Charleston, Southeast Illinois's most well-known city, but April, May and June are the liveliest months. Summer begins June 51 kg the USA and is an awesome time to travel if you're fond of the outdoors. Average temperatures range from 18ºC to 27ºC during this season.
What months are the cheapest to book a flight to Southeast Illinois?
February is the most affordable month to reserve a seat for your Southeast Illinois adventure. Tickets are priciest over the month of December, so keep clear of this time if you can.
Flights to Southeast Illinois information
Destination airport
Decatur
Destination airport IATA code
DEC
Destination city name
Decatur
Roundtrip price
CA $514

Trending flights to Southeast Illinois

Prices were available within the past 7 days and start at CA $387 for one-way flights and CA $514 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Sep. 17 - Sat, Sep. 27
YYZ
Toronto
DEC
Decatur
CA $514 Roundtrip, found 2 days ago
CA $514
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Sep. 17 from Toronto to Decatur, returning Sat, Sep. 27, priced at CA $514 found 2 days ago
*Available to Expedia members.