Is Spirit Airlines the cheapest airline to fly with from Chicago to Boston?

With an average price of $166 return, Spirit Airlines is not the cheapest airline to fly from Chicago to Boston with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $115 on average.

What is the cheapest Spirit Airlines flight from Chicago to Boston?

In the last 3 days, the lowest price for a flight with Spirit Airlines from Chicago to Boston was $114 for a return flight and $58 for a one-way flight.

Does Spirit Airlines fly direct to Boston from Chicago?

No, Spirit Airlines does not fly the route directly.

What’s the cheapest day of the week to fly from Chicago to Boston with Spirit Airlines?

On average, the cheapest day of the week to fly from Chicago to Boston with Spirit Airlines is Tuesday, when prices are around $43. The most expensive day is generally Saturday, where the average price is around $101.

$61 Cheap Spirit Airlines Flights from Chicago to Boston

Flight Deals

Cheap Spirit Airlines Flight Deals from Chicago to Boston

Here are some of the best deals found on KAYAK recently from Spirit Airlines for round-trip flights from Chicago to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip Spirit Airlines flight deals from Chicago to Boston

Thu, Jan 22 - Sat, Jan 24

10:48 am - 11:19 pm

ORD

BOS

11h 31m1 stop

7:00 am - 7:41 pm

BOS

ORD

13h 41m1 stop

$120Spirit Airlines

Sat, Jan 17 - Fri, Jan 23

12:44 pm - 11:19 pm

ORD

BOS

9h 35m1 stop

2:00 pm - 9:03 pm

BOS

ORD

8h 03m1 stop

$129Spirit Airlines

Wed, Jan 14 - Fri, Jan 23

10:48 am - 11:19 pm

ORD

BOS

11h 31m1 stop

7:00 am - 5:52 pm

BOS

ORD

11h 52m1 stop

$135Spirit Airlines

Thu, Jan 15 - Fri, Jan 23

7:20 am - 4:28 pm

ORD

BOS

8h 08m1 stop

7:00 am - 5:52 pm

BOS

ORD

11h 52m1 stop

$136Spirit Airlines

Sat, Jan 17 - Fri, Jan 23

12:44 pm - 11:19 pm

ORD

BOS

9h 35m1 stop

7:00 am - 5:52 pm

BOS

ORD

11h 52m1 stop

$137Spirit Airlines

Sat, Jan 17 - Sun, Jan 18

10:48 am - 11:19 pm

ORD

BOS

11h 31m1 stop

7:00 am - 7:41 pm

BOS

ORD

13h 41m1 stop

$138Spirit Airlines

Thu, Jan 8 - Tue, Jan 13

5:15 am - 4:28 pm

ORD

BOS

10h 13m1 stop

5:23 pm - 8:18 am

BOS

ORD

15h 55m1 stop

$139Spirit Airlines

Tue, Jan 20 - Mon, Feb 2

9:23 am - 4:19 pm

ORD

BOS

29h 56m1 stop

3:43 pm - 5:52 pm

BOS

ORD

27h 09m1 stop

$140Spirit Airlines

Sat, Jan 24 - Mon, Jan 26

10:48 am - 11:19 pm

ORD

BOS

11h 31m1 stop

7:00 am - 5:52 pm

BOS

ORD

11h 52m1 stop

$143Spirit Airlines

Mon, Jan 26 - Mon, Feb 2

6:57 pm - 4:19 pm

ORD

BOS

20h 22m1 stop

3:43 pm - 5:52 pm

BOS

ORD

27h 09m1 stop

$145Spirit Airlines

Useful Info

Cheapest flight	$61

Flight from Chicago O'Hare Airport to Boston

When to Book Flights with Spirit Airlines from Chicago to Boston

Average price per month

Flight prices as travel date approaches

Is Spirit Airlines the cheapest airline to fly with from Chicago to Boston?
With an average price of $166 return, Spirit Airlines is not the cheapest airline to fly from Chicago to Boston with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $115 on average.
What is the cheapest Spirit Airlines flight from Chicago to Boston?
In the last 3 days, the lowest price for a flight with Spirit Airlines from Chicago to Boston was $114 for a return flight and $58 for a one-way flight.
Does Spirit Airlines fly direct to Boston from Chicago?
No, Spirit Airlines does not fly the route directly.
What’s the cheapest day of the week to fly from Chicago to Boston with Spirit Airlines?
On average, the cheapest day of the week to fly from Chicago to Boston with Spirit Airlines is Tuesday, when prices are around $43. The most expensive day is generally Saturday, where the average price is around $101.

6.3

Okay8,183 verified ratings

5.0Entertainment

5.9Comfort

6.6Boarding

5.1Food

7.1Crew

Pros +

Cons -

Show reviews that mention

6.0 Okay

colleen, Dec 2025

FLL

BWI

n/a

4.0 Mediocre

colleen, Dec 2025

KIN

FLL

Seats Are hard, Plane was very dirty, used gum stuck on my tray table, wet red liquid under my feet at me seat

8.0 Very good

Richard, Dec 2025

STT

MCO

Seats are too close. Bags are too expensive. One bag should always be free.

2.0 Poor

Angel, Dec 2025

IAH

MCO

Flight was canceled and instead of rescheduling at the gate we had to go out to the ticket counter. Unruly kids kicking the back of my rows chair with staff to inattentive to say something.

8.0 Very good

Verified traveler, Dec 2025

FLL

CLT

Everything was good.

2.0 Poor

Andrew, Dec 2025

MCO

MCI

Customer feedback I sent to Spirited today: “I will never fly Spirit Airlines again and will work hard to convince my friends and family to boycott/avoid Spirit Airlines at all costs. I booked three seats for me and my 8 and 10 year old children on NK 1222 from Orlando to Kansas City for 12/7/25 leaving Orlando at 10:37AM. This itinerary was abandoned by Spirit and we were rebooked onto Spirit flight NK 213 leaving at 9:06PM without any notice. Then the nightmare really began. Flight 213 was delayed a total of 12 times, finally leaving at 6:35AM the following day. The gate was changed 5 times and our electronic boarding passes were invalidated at midnight. The worst part was that the 12 separate delays were incremental making it impossible to plan for accommodations for my family. My kids missed a day of school and barely slept under the harsh lights with lots of noise on the filthy airport floor. The customer service agent at Spirit Airlines told us we would be emailed a voucher for a hotel which never happened. I asked about it multiple times and it never arrived in my email inbox. This whole unfortunate situation could’ve been avoided if spirit had taken a realistic approach and delayed the flight from 9 PM until 6 AM from the beginning. My son gleefully deleted the Spirit app from my phone once we landed and we will never fly with Spirit again.”

2.0 Poor

Verified traveler, Dec 2025

CLO

FLL

Delayed almost 3 hours

10.0 Wonderful

Luis, Dec 2025

BAQ

FLL

The experience was really good, the crew members were excellent

10.0 Wonderful

Edgar Eudin, Dec 2025

MDE

FLL

2.0 Poor

Zachary, Dec 2025

DFW

DTW

Honestly horrible. The plane on the way back was delayed 6 times with no explanation on why. When I asked for a refund or some money back because I had to miss a day of work because of the desk, they told me no. Because of how poorly it was handled I will most likely never take spirit again

Everything you need to know for your flight from Chicago to Boston

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$61 Find Cheap Spirit Airlines Flights from Chicago to Boston

Search hundreds of travel sites at once for deals on Spirit Airlines flights from Chicago to Boston

Cheap Spirit Airlines Flight Deals from Chicago to Boston

Recent round-trip Spirit Airlines flight deals from Chicago to Boston

Recent one-way Spirit Airlines flight deals from Chicago to Boston

Recent last minute Spirit Airlines flight deals from Chicago to Boston

Good to know

When to Book Flights with Spirit Airlines from Chicago to Boston

FAQs for flying to Boston with Spirit Airlines

Is Spirit Airlines the cheapest airline to fly with from Chicago to Boston?

With an average price of $166 return, Spirit Airlines is not the cheapest airline to fly from Chicago to Boston with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $115 on average.

What is the cheapest Spirit Airlines flight from Chicago to Boston?

In the last 3 days, the lowest price for a flight with Spirit Airlines from Chicago to Boston was $114 for a return flight and $58 for a one-way flight.

Does Spirit Airlines fly direct to Boston from Chicago?

No, Spirit Airlines does not fly the route directly.

What’s the cheapest day of the week to fly from Chicago to Boston with Spirit Airlines?

On average, the cheapest day of the week to fly from Chicago to Boston with Spirit Airlines is Tuesday, when prices are around $43. The most expensive day is generally Saturday, where the average price is around $101.

Spirit Airlines Customer Reviews

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Everything you need to know for your flight from Chicago to Boston

Other airlines flying from Chicago to Boston

Flight deals from the most popular airlines with KAYAK users flying the route

Cabin class types available on flights to Boston

Cabin classes available on flights to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Boston with a hotel stay or car rental

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Find deals for your return flight

Top Spirit Airlines flights

The most popular destinations for flights with Spirit Airlines according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.