Cheap flights from Boston to Illinois from $45
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Illinois departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Boston to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Boston to Illinois.
Cheap last minute flights
Planning a quick getaway from Boston to Illinois? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.
Cheap bus & train deals from Boston to Illinois
Find recent round-trip train or bus tickets from Boston to Illinois.
All round-trip flight deals to Illinois
The cheapest plane tickets to Illinois found on KAYAK recently.
Spirit Airlines flights from Boston to Illinois
Our best Spirit Airlines deals on Boston to Illinois flight tickets
Spirit Airlines![Spirit Airlines]()
Feb 4![Spirit Airlines]()
Feb 12
BOS11:31 amBoston Logan Intl
9h 42m
1 stop
ORD8:13 pmChicago O'Hare Intl
ORD5:00 amChicago O'Hare Intl
13h 21m
1 stop
BOS7:21 pmBoston Logan Intl
Spirit Airlines![Spirit Airlines]()
Feb 26![Spirit Airlines]()
Mar 5
BOS10:03 amBoston Logan Intl
13h 00m
1 stop
ORD10:03 pmChicago O'Hare Intl
ORD5:45 amChicago O'Hare Intl
2h 18m
BOS9:03 amBoston Logan Intl
American Airlines flights from Boston to Illinois
Our best American Airlines deals on Boston to Illinois flight tickets
American Airlines![American Airlines]()
Jan 19![American Airlines]()
Jan 21
BOS6:00 amBoston Logan Intl
3h 08m
ORD8:08 amChicago O'Hare Intl
ORD6:30 amChicago O'Hare Intl
2h 33m
BOS10:03 amBoston Logan Intl
American Airlines![American Airlines]()
Jan 23![American Airlines]()
Jan 27
BOS8:45 amBoston Logan Intl
3h 00m
ORD10:45 amChicago O'Hare Intl
ORD1:35 pmChicago O'Hare Intl
4h 23m
1 stop
BOS6:58 pmBoston Logan Intl
See travel insights to Illinois from
How to get the cheapest flight ticket from Boston 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
Prices
Airlines
Other information
What is the cheapest month to fly to Illinois?
The cheapest month to fly to Illinois from Boston is in September. Flight prices, which tend to average around $183, 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 September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $197.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Boston to Illinois is on a Tuesday when prices can be found for as low as $222. Flights from Boston to Illinois on a Sunday will generally be more expensive and average around $278. 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 in the evening. Flights from Boston to Illinois during this time can be as low as $237. Flights in the afternoon are often more expensive with an average ticket price of $277.
What is the cheapest Boston Logan Intl to Illinois flight route?
Fly from Boston Logan Intl to Chicago O'Hare Intl for the best Boston Logan Intl - Illinois flight prices
How far in advance should I book a flight to Illinois?
The best time to book a flight to Illinois from Boston is 57 days out, which is when prices tend to be around $247. In the past 72 hours, momondo users found flights from Boston to Illinois for as low as $163.
What cabin class options are available on Boston Logan Intl to Illinois flights?
There are 4 cabin classes available to choose from on Boston Logan Intl 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 Boston Logan Intl to Illinois?
Spirit Airlines, Frontier, and Delta are the most popular carriers operating from Boston Logan Intl 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 Boston according to our data. American Airlines is the first choice among our users, with 40% 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 Boston to Illinois on average per day?
42 flights are operational daily from Boston to Illinois as of January 2025. The most popular departure time for this route is 6:00AM, with 47% of flights per day taking off in the afternoon.
How many flights depart from Boston to Illinois on average per week?
As of January 2025, 294 flights take off from Boston and land in Illinois each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.
Cheap Boston to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to Illinois
When did momondo last update prices for flights from Boston Logan Intl Airport to Illinois?
Prices for flights from Boston Logan Intl Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Boston Logan Intl Airport to Illinois?
The number of operators available for flights from Boston Logan Intl Airport to Illinois is 7 as of January 2025.
How old do you have to be to fly from Boston Logan Intl Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl 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.
What is the most popular plane model from Boston to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Boston to Illinois is Boeing 737-800, representing 21.61% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 11.08%, Embraer 175 at 10.94%, and Airbus A321neo at 8.84%.
Best airlines flying from Boston to Illinois
Compare and see reviews for airlines that fly from Boston to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $39 | Free Cancellation | Rating 6.3 8,075 reviews | |||
| PriceFrom $80 | Free Cancellation | Rating 7.4 3,191 reviews | |||
| PriceFrom $93 | Free Cancellation | Rating 8.0 8,501 reviews | |||
| PriceFrom $98 | Free Cancellation | Rating 6.0 3,428 reviews | |||
| PriceFrom $138 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $147 | Free Cancellation | Rating 7.4 8,942 reviews | |||
| PriceFrom $148 | Free Cancellation | Rating 8.1 4,650 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Boston to Illinois?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Illinois for you.
Can I find flights from Boston to Illinois with flexible booking policies on momondo?
All flight searches from Boston to Illinois on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Boston 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 Boston to Illinois.
I’m not ready to book a flight from Boston to Illinois right now. Can momondo alert me if prices change?
Price alerts on flights to Illinois from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.
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