An aerial view of a town with a prominent historic building with a clock tower, a parking lot, and surrounding residential and commercial buildings.

Cheap Flights to Sullivan: Sullivan Flight Deals

View €245 flight on Sun, 6 Sept 2026Opens in a new window

Popular airlines to Sullivan

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Cheap round-trip flights to Sullivan

Prices were available within the past 7 days and start at €245 for one-way flights and €342 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
United
United
United
United
United
Delta

Frequently asked questions

What is the name of Sullivan's airport?
Sullivan has only one airport, University Of Illinois Urbana-Champaign Williard Airport (CMI).
How many airlines fly to Sullivan?
There are 12 air carriers that fly into Sullivan from 64 airports across the globe.
Which airlines fly to Sullivan?
United Airlines and American Airlines operate the most flights to Sullivan. One of the most preferred ways to travel there is with a United Airlines flight from Chicago.
How many nonstop flights are there to Sullivan?
Flying to a new place is much more straightforward when there aren't any stopovers involved. If you're off to Sullivan, the great news is that there are roughly 1,347 direct flights operating every week.
Where are the most popular flights to Sullivan departing from?
A large number of flights to Sullivan set off from Dallas, Chicago and Denver airports.
How long is the flight to Sullivan Airport?
If it's Chicago you're leaving behind, you'll be midair for around 1 hour and 10 minutes before you touchdown in Sullivan. Terminal to terminal from Dallas takes approximately 1 hour and 48 minutes and from Queens Village, the average flight time is 2 hours and 51 minutes.
How to book the cheapest flight to Sullivan?
We've all come across those lucky travellers who somehow manage to nab extremely cheap fares wherever they go. Eager to know how to do it for your Sullivan holiday? Don't leave it until the last minute to lock in your flight. Another easy way to land the most competitive fare is to research all options. If your destination has several airports, be sure to research the cost of flying into a smaller terminal. Finally, another simple way to save a few dollars is be ready to book fast. If you come across an amazing deal, don't think twice — grab it while the opportunity's there.
How to survive the flight to Sullivan?
Depending on where you're coming from, your journey to Sullivan could be completely stress-free or it could drag on forever. We've compiled some handy travel tips that will help you start your next great escape on the right foot.What to pack in your hand luggage:
  • First of all, pack in your passport, travel documents, credit cards and vital medications. Next, you'll need some extra in-flight entertainment to help pass the time. A juicy book and a laptop crammed with your favourite shows are some fantastic options. If you plan to take a short nap, a neck pillow and some earplugs will also be useful. Finally, find room for a toothbrush and some cleansing wipes to ensure you touchdown looking fresh and raring to go.
Do not pack the following items in your hand luggage:
  • While the list of banned items can differ between airlines, the general rule to follow is nothing sharp, flammable or explosive. This includes things like box cutters, razor blades, fuel and fireworks. Sporting equipment like baseball bats, and items that could harm passengers, such as pepper spray and firearms, aren't allowed in the cabin either.
What to wear on a flight:
  • The best way to ensure a comfortable flight often lies in the clothes you wear. Prepare yourself for varying temperatures by layering up. That way you'll stay nice and warm if the cabin gets too cold. Shoes like stilettos, flip flops and lace-up boots are best left in your suitcase. Instead, go for flat, closed-toed footwear like slip-ons. Your feet will thank you later.
  • You've probably heard about DVT (deep vein thrombosis), a blood clotting condition caused by long periods of sitting. There are numerous ways to lessen your risk. Wear a quality pair of compression socks or tights, drink lots of water often and keep your legs and feet moving. Wander up and down the aisles of the cabin or perform some stretches in your seat.
How to get through airport security fast when flying to Sullivan?
It's simple — be prepared. We've rounded up some useful tips for a hassle-free trip through security. Look out Sullivan, here you come:
  • Your travel ID and boarding pass will need to be inspected by airport security personnel. Keep them someplace accessible so you don't hold up the line.
  • The X-ray machine is up next. Empty your pockets and remove anything that is likely to beep. This includes things like headphones or earphones, as well as your coat or jacket. They'll need to be placed on the conveyor belt for screening.
  • For just a few moments, you'll have to unplug from technology. Your phone, laptop and any other electronic devices will also need to be sent through the scanner.
  • Any gels or liquids, such as perfume or hand cream, that you want to take on board must be no greater than 3.4 ounces (100 milliliters). They must also all fit inside a quart-size (one litre), clear zip-close bag.
  • Choosing your footwear wisely can save you several valuable minutes. Boots are often required to be removed and separately scanned. Slip-on sneakers are usually not.
  • Sharp items like knives can't be taken on board. They'll be confiscated at security, so pack them safely away in your checked suitcase.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Sullivan. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Sullivan. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Sullivan, or are just on the lookout for the best flights to Sullivan, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Sullivan to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Destination airport
Decatur
Destination airport IATA code
DEC
Destination city name
Decatur
Roundtrip price
€342
*Available to Expedia members.