Cheap flights from Connecticut to Illinois from $39
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Connecticut to Illinois departing on 5/21. 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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Spirit Airlines flights from Connecticut to Illinois
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Delta flights from Connecticut to Illinois
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How to get the cheapest flight ticket from Connecticut 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 day to depart on your flight to Illinois?
The cheapest day to depart from Connecticut to Illinois is on a Thursday when prices can be found for as low as $445. Flights from Connecticut to Illinois on a Sunday will generally be more expensive and average around $541. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Connecticut to Illinois during this time can be as low as $440. Flights in the morning are often more expensive with an average ticket price of $482.
What is the cheapest Connecticut to Illinois flight route?
Fly from Tweed-New Haven to Chicago O'Hare Intl for the best Connecticut - Illinois flight prices
What cabin class options are available on Connecticut to Illinois flights?
There are 4 cabin classes available to choose from on Connecticut to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Connecticut to Illinois?
Spirit Airlines, JetBlue, and United Airlines are the most popular carriers operating from Connecticut to Illinois
What airlines fly to Illinois?
American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Connecticut according to our data. American Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 7 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Connecticut to Illinois on average per day?
187 flights are operational daily from Connecticut to Illinois as of April 2025. The most popular departure time for this route is 12:00PM, with 51% of flights per day taking off in the afternoon.
How many flights depart from Connecticut to Illinois on average per week?
1,311 flights are operational weekly from Connecticut to Illinois as of April 2025. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.
Cheap Connecticut to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Connecticut to Illinois
When did momondo last update prices for flights from Connecticut to Illinois?
Prices for flights from Connecticut to Illinois were last updated today.
How many operators does momondo search for flights from Connecticut to Illinois?
As of April 2025, there are 7 operators available to choose from for flights from Connecticut to Illinois.
How old do you have to be to fly from Connecticut to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Connecticut to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Connecticut to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Connecticut to Illinois is Boeing 737-800, representing 26.13% of all bookings. The subsequent popular models are Embraer 175 at 13.23%, Boeing 737-900 at 10.03%, and Airbus A319 at 8.66%.
Best airlines flying from Connecticut to Illinois
Compare and see reviews for airlines that fly from Connecticut to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $77 | Free Cancellation | Rating 7.5 74 reviews | |||
| PriceFrom $108 | Free Cancellation | Rating 5.9 3,283 reviews | |||
| PriceFrom $116 | Free Cancellation | Rating 6.3 7,940 reviews | |||
| PriceFrom $125 | Free Cancellation | Rating 7.4 8,685 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $198 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $232 | Free Cancellation | Rating 8.0 4,287 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Connecticut to Illinois?
It is quick and easy to find Connecticut to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.
Can I find flights from Connecticut to Illinois with flexible booking policies on momondo?
All flight searches from Connecticut to Illinois on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Connecticut to Illinois?
Once all potential Connecticut to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Connecticut to Illinois right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Connecticut and alert you when they change.