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Cheap Frontier Flight Deals to Chicago

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

Recent round-trip Frontier flight deals to Chicago

Wed, Oct 7 - Sun, Oct 11
Frontier Logo
5:02 pm - 6:23 pmATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 21mnonstop
Frontier Logo
10:26 am - 1:34 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 08mnonstop
$138Frontier
Wed, Sep 30 - Mon, Oct 5
Frontier Logo
7:30 pm - 11:40 amATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
17h 10m1 stop Baltimore/Washington
Frontier Logo
6:20 am - 12:28 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
29h 08m1 stop Baltimore/Washington
$139Frontier
Thu, Sep 10 - Thu, Sep 17
Frontier Logo
8:00 am - 9:20 amATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
Frontier Logo
7:28 pm - 10:44 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 16mnonstop
$140Frontier
Sat, Oct 31 - Sun, Nov 1
Frontier Logo
6:22 pm - 7:44 pmATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 22mnonstop
Frontier Logo
6:30 am - 9:40 amORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 10mnonstop
$141Frontier
Thu, Nov 5 - Wed, Nov 11
Frontier Logo
6:33 am - 1:26 pmATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
7h 53m1 stop Baltimore/Washington
Frontier Logo
6:30 am - 9:40 amORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 10mnonstop
$142Frontier
Mon, Sep 7 - Thu, Sep 17
Frontier Logo
6:35 am - 7:53 amATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 18mnonstop
Frontier Logo
7:28 pm - 10:44 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 16mnonstop
$144Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
6:35 am - 7:53 amATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 18mnonstop
Frontier Logo
6:30 am - 7:54 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
12h 24m2 stops Denver Intl Tampa
$145Frontier
Wed, Sep 23 - Thu, Oct 1
Frontier Logo
7:30 pm - 11:40 amATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
17h 10m1 stop Baltimore/Washington
Frontier Logo
6:20 am - 11:31 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
16h 11m1 stop Baltimore/Washington
$146Frontier
Wed, Sep 23 - Fri, Sep 25
Frontier Logo
5:02 pm - 6:23 pmATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 21mnonstop
Frontier Logo
6:20 am - 12:28 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
5h 08m1 stop Baltimore/Washington
$147Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
6:35 am - 7:53 amATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 18mnonstop
Frontier Logo
6:30 am - 7:54 pmORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
12h 24m2 stops Denver Intl Tampa
$148Frontier
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KAYAK's insights & trends for Chicago flights with Frontier

Get data-powered insights and trends into Frontier flights to Chicago to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly with Frontier to Chicago?

The cheapest month for Frontier flights to Chicago is January, where tickets cost $111 (return) on average. On the other hand, the most expensive months to fly this route on Frontier are June and July, where the average cost of round-trip tickets is $255 and $249 respectively.

How far in advance should I book Frontier flights to Chicago?

For the absolute cheapest price on Frontier, our data suggests you should book 3 weeks before departure.

What is the cheapest flight to Chicago with Frontier?

The cheapest airline ticket to Chicago from the United States with Frontier in the last 5 days was $71 one-way, and $138 round-trip on the route from Atlanta to Chicago O'Hare Intl Airport. The most popular route is from Atlanta to Chicago O'Hare Intl Airport and the cheapest ticket found on this route in the last 5 days was $138 return.

How many direct flights does Frontier operate to Chicago every week?

Each week there are around 137 direct flights from within the United States to Chicago. The most common day for departures is Sunday, with 20% of flights taking off on this day.

What is the cheapest day to fly to Chicago?

Based on KAYAK data, the cheapest day to fly to Chicago is Saturday where tickets can be as cheap as $184. On the other hand, the most expensive day to fly is Sunday, where prices are $220 on average.

What is the cheapest time of day to fly to Chicago with Frontier?

The cheapest time of day to fly to Chicago with Frontier is generally in the morning, when flights cost $186 on average.

Good to know

Low season

February

Cheapest flight

$69

Average price round-trip

$4,261

Good deal round-trip

$3,622
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Atlanta to Chicago O'Hare Airport
(avg. price over the last 2 weeks)
or less

When to book flights with Frontier to Chicago

Average price per month
Flight prices as travel date approaches

FAQs for flying to Chicago with Frontier

  • Is Frontier cheaper than other airlines flying to Chicago?

    With an average return price of $266, Frontier is cheaper than Delta, United Airlines and Alaska Airlines when it comes to flights to Chicago. However, the cheapest airline flying to Chicago is Allegiant Air, with an average return price of $174.

  • Which other airlines fly to Chicago?

    Along with Frontier, you can also fly to Chicago with Southwest, American Airlines, Allegiant Air, Allegiant Air, United Airlines, Contour, United Airlines, Alaska Airlines, Avelo Airlines, Avelo Airlines, Denver Air Connection and Delta.

  • How much is a flight to Chicago with Frontier?

    On average, Frontier flights to Chicago cost $159 for one-way and $266 return.

  • Which airport do Frontier flights to Chicago fly into?

    Frontier flights to Chicago will fly into either Chicago O'Hare Airport, Chicago Midway Airport and Chicago Greater Rockford.

Top tips for your flights to Chicago with Frontier

  • Looking to fly from the United States to Chicago with Frontier? 25% of our users found flights for the following prices or less: From Dallas/Fort Worth Airport $109 one-way, $227 round-trip; from Newark Airport $150 one-way, $202 round-trip.
  • The cheapest flight to Chicago with Frontier found on KAYAK in the last 2 weeks departed from Dallas/Fort Worth Airport and cost $88.
  • If you’re intending to fly with Frontier, book your flight to Chicago at least 1 week before departure to ensure a below-average price.
  • High season for flights to Chicago with Frontier is October and prices are highest at this time. The cheapest month to fly is February.

Frontier customer reviews

5.6
Fair2,661 verified ratings
4.3Entertainment
6.5Crew
5.9Boarding
5.4Comfort
4.5Food
Traveler rating:
Sort by:
A
2.0 Poor
When I was boarding my departure from Raleigh to Orlando I was inappropriately scolded by a female dog named Mia because I didn’t pay in advance for my carry on bag ($75). Frontiers website is confusing regarding pre-paying for carryons so it was a simple mistake. I also had paid for “upfront plus” meaning me and my son were seated in the front row with no one in the middle seat ($450 upgrade). When we were boarding Mia said “sir, you didn’t pay for your carryon” in a not so polite tone and told me to get out of line and come back to the counter to pay for my carryon. The way they had the retractable rope left me no room to circle back without making the people behind me move so I just stood there and then she said a second time “sir!! Go pay for your carryon” in an embarrassing tone. I then moved their rope so I could get back to the counter when a second female dog then asked “are you done!?!?” because I had said “do you want me to bulldoze the people behind me?” I then said you do realize I paid over $400 for upfront plus so I was certainly not trying to sneak a carryon bag without paying. Long story short, I am soooo done with discount airlines!!! By the time you pay for all the “extras” you might as well have paid for Delta Southwest or American! Frontier airlines sucks and I was embarrassed by a female dog named Mia!!!
W
4.0 Mediocre
No reclining seats
A
8.0 Very good
Friendly service. No charges for phones.
N
8.0 Very good
Great services
A
2.0 Poor
They cancelled my flight
J
10.0 Wonderful
Frontier is good until they cancel your flight. Way too many cancellations.
G
2.0 Poor
See my last review
G
4.0 Mediocre
I know Frontier is a “no-frills” airline. I understand the concept. However, I jumped on some tickets for our family vacation, expecting to play a bit of a game to figure out the family bags and not over spend. In the end, I got the short end of this deal by far. 1. I did not expect them to charge the baggage fee for each direction. It makes the fee look high-ish at a glance, but reasonable. Then when you get to checkout and realize you have to pay it twice to come home with your luggage, it becomes ridiculous. 2. The low checked bag weight limit. I am used to packing a 50lb bag with my preferred airline. Frontier’s artificially low 40lb limit more quickly triggers the extra weight fee, which almost DOUBLES the price of the bag if you go over ($79 for the bag/$75 for the next 10 lbs) 3. The fee for a carry-on bag is the same as a checked bag but with a lower size and weight limit. Make it make sense! 4. The seats are terrible. My 2.5 hour flight almost had me losing my mind. I’m 6’3” and my femurs barely fit in the space provided. My knees had to wiggle just right to jam into the crack next to the armrest of the seat in front of me. The cushioning was thin and inadequate. I am tall but I’m not a freak. These seats are unacceptable. 5. I overheard the woman next to me speaking with the gate agent about being charged a $25 fee for not checking in online - she checked in at the airport counter when she arrived. That’s ridiculous. She was old and in a wheelchair. She had a paper boarding pass, and was obviously not tech savvy. She should not be punished for that. 6. They do not have good placement in the terminals. It was always out on the end or down on a subfloor, and we had to walk out on the tarmac almost every time. In Denver. Their home airport! 7. Every time I loaded a new page on the website while buying my tickets or my bags, it was constantly trying to upsell me on some esoteric bundle. Like, a pop-up every time. Very annoying. 8. No screens in the boarding area (at least where we were) to confirm you’re in the right place. Just static gate number signs. I am sure these are standard practices for Frontier, and I should have read more about them before I purchased tickets, but as a result of this single round trip, I do not plan to ever use this cut-rate airline again. I would rather pay the normal amount for a ticket and be treated like a customer instead of a mark.
A
2.0 Poor
Our flight was delayed 2 hours and when they changed the the time to 1 hour I wasn't alerted and when I checked the gate the plane was still there but they already shut the doors so I had to buy another flight.
A
6.0 Okay
Okay 👍
Read more about Frontier

Everything you need to know for your flight to Chicago

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