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Flight Deals
Cheap Frontier Flight Deals to Chicago
Here are some of the best deals found on KAYAK recently from Frontier to Chicago 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.
Recent round-trip Frontier flight deals to Chicago
Fri, Dec 11 - Sun, Dec 13
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
10:29 pm - 1:37 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 08mnonstop
$128Frontier
Thu, Dec 3 - Sun, Dec 13
7:20 am - 1:56 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
7h 36m1 stop Fort Lauderdale
8:15 am - 11:36 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 21mnonstop
$129Frontier
Wed, Dec 2 - Sat, Dec 5
12:41 pm - 2:00 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 19mnonstop
10:00 am - 10:55 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
11h 55m1 stop Dallas/Fort Worth
$130Frontier
Mon, Dec 7 - Tue, Jan 5
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
9:40 am - 12:54 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 14mnonstop
$131Frontier
Wed, Dec 2 - Tue, Dec 8
8:20 pm - 9:35 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 15mnonstop
10:00 am - 6:02 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
7h 02m1 stop Dallas/Fort Worth
$132Frontier
Wed, Dec 2 - Sat, Dec 5
8:20 pm - 9:35 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 15mnonstop
8:30 am - 11:51 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 21mnonstop
$133Frontier
Sun, Dec 6 - Sat, Dec 12
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
4:00 pm - 7:32 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 32mnonstop
$134Frontier
Tue, Dec 1 - Tue, Dec 8
8:20 pm - 9:35 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 15mnonstop
10:00 am - 6:02 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
7h 02m1 stop Dallas/Fort Worth
$135Frontier
Wed, Nov 18 - Thu, Nov 26
12:27 pm - 3:37 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
28h 10m1 stop Fort Lauderdale
7:49 am - 11:14 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 25mnonstop
$136Frontier
Fri, Dec 4 - Wed, Dec 9
4:46 pm - 6:03 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 17mnonstop
10:00 am - 7:59 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
8h 59m1 stop Dallas/Fort Worth
$137Frontier
Recent one-way Frontier flight deals to Chicago
Sat, Dec 5
9:29 pm - 7:20 amFLL Fort Lauderdale-ORD Chicago O'Hare Intl
10h 51m1 stop Atlanta Hartsfield-Jackson
$82Frontier
Sat, Dec 12
9:29 pm - 7:20 amFLL Fort Lauderdale-ORD Chicago O'Hare Intl
10h 51m1 stop Atlanta Hartsfield-Jackson
$83Frontier
Thu, Nov 12
7:31 am - 3:37 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
9h 06m1 stop Fort Lauderdale
$86Frontier
Tue, Dec 15
6:57 pm - 4:33 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
22h 36m1 stop Dallas/Fort Worth
$87Frontier
Sat, Dec 12
5:19 am - 4:33 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
12h 14m1 stop Dallas/Fort Worth
$88Frontier
Sun, Jan 10
8:00 am - 9:43 amPHL Philadelphia-ORD Chicago O'Hare Intl
2h 43mnonstop
$89Frontier
Fri, Dec 11
4:31 pm - 9:29 pmPHL Philadelphia-ORD Chicago O'Hare Intl
5h 58m1 stop Atlanta Hartsfield-Jackson
$90Frontier
Tue, Dec 1
8:20 pm - 9:35 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 15mnonstop
$90Frontier
Sat, Nov 14
6:31 am - 12:51 pmFLL Fort Lauderdale-ORD Chicago O'Hare Intl
7h 20m1 stop Atlanta Hartsfield-Jackson
$90Frontier
Thu, Feb 4
6:15 am - 11:50 amPHL Philadelphia-ORD Chicago O'Hare Intl
6h 35m1 stop Atlanta Hartsfield-Jackson
$91Frontier
Recent last minute Frontier flight deals to Chicago
Sat, Nov 7 - Sat, Nov 14
1:05 pm - 3:37 pmFLL Fort Lauderdale-ORD Chicago O'Hare Intl
3h 32mnonstop
7:55 am - 12:02 pmORD Chicago O'Hare Intl-FLL Fort Lauderdale
3h 07mnonstop
$144Frontier
Fri, Nov 6 - Mon, Nov 23
9:00 pm - 3:37 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
19h 37m1 stop Fort Lauderdale
7:49 am - 11:14 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 25mnonstop
$150Frontier
Thu, Nov 5 - Thu, Nov 12
1:05 pm - 3:37 pmFLL Fort Lauderdale-ORD Chicago O'Hare Intl
3h 32mnonstop
7:55 am - 12:02 pmORD Chicago O'Hare Intl-FLL Fort Lauderdale
3h 07mnonstop
$152Frontier
Sun, Nov 8 - Fri, Nov 13
1:05 pm - 3:37 pmFLL Fort Lauderdale-ORD Chicago O'Hare Intl
3h 32mnonstop
7:55 am - 12:02 pmORD Chicago O'Hare Intl-FLL Fort Lauderdale
3h 07mnonstop
$154Frontier
Sat, Nov 7 - Mon, Nov 9
1:05 pm - 3:37 pmFLL Fort Lauderdale-ORD Chicago O'Hare Intl
3h 32mnonstop
7:55 am - 12:02 pmORD Chicago O'Hare Intl-FLL Fort Lauderdale
3h 07mnonstop
$155Frontier
Sat, Nov 7 - Thu, Nov 19
1:05 pm - 3:37 pmFLL Fort Lauderdale-ORD Chicago O'Hare Intl
3h 32mnonstop
7:55 am - 12:02 pmORD Chicago O'Hare Intl-FLL Fort Lauderdale
3h 07mnonstop
$157Frontier
Thu, Nov 5 - Fri, Nov 6
7:44 am - 9:00 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 16mnonstop
7:49 pm - 11:05 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 16mnonstop
$165Frontier
Sat, Nov 7 - Thu, Nov 19
1:05 pm - 3:37 pmFLL Fort Lauderdale-ORD Chicago O'Hare Intl
3h 32mnonstop
7:55 am - 12:02 pmORD Chicago O'Hare Intl-FLL Fort Lauderdale
3h 07mnonstop
$169Frontier
Sat, Nov 7 - Wed, Dec 2
7:31 am - 3:37 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
9h 06m1 stop Fort Lauderdale
8:15 am - 11:27 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 12mnonstop
$172Frontier
Fri, Nov 6 - Mon, Nov 23
9:00 pm - 3:37 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
19h 37m1 stop Fort Lauderdale
5:25 am - 12:21 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
17h 56m1 stop Houston George Bush Intcntl
$175Frontier
Recent direct Frontier flight deals to Chicago
Fri, Dec 11 - Sun, Dec 13
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
10:29 pm - 1:37 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 08mnonstop
$128Frontier
Thu, Feb 25 - Mon, Mar 1
10:27 am - 11:50 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 23mnonstop
5:32 pm - 9:00 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 28mnonstop
$129Frontier
Mon, Dec 7 - Wed, Jan 6
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
9:40 am - 12:54 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 14mnonstop
$130Frontier
Mon, Dec 7 - Tue, Jan 5
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
9:40 am - 12:54 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 14mnonstop
$131Frontier
Sun, Dec 6 - Tue, Dec 8
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
4:00 pm - 7:32 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 32mnonstop
$132Frontier
Wed, Dec 2 - Sat, Dec 5
8:20 pm - 9:35 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 15mnonstop
8:30 am - 11:51 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 21mnonstop
$133Frontier
Sun, Dec 6 - Sat, Dec 12
6:00 am - 7:20 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 20mnonstop
4:00 pm - 7:32 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 32mnonstop
$134Frontier
Thu, Nov 19 - Mon, Nov 23
10:59 pm - 12:13 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 14mnonstop
7:49 am - 11:14 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 25mnonstop
$135Frontier
Thu, Nov 26 - Fri, Nov 27
10:04 pm - 11:18 pmATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 14mnonstop
7:49 am - 11:14 amORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 25mnonstop
$136Frontier
Thu, Nov 19 - Thu, Nov 19
7:44 am - 9:00 amATL Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 16mnonstop
7:50 pm - 11:06 pmORD Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 16mnonstop
$137Frontier
Useful Info
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 February, where tickets cost $114 (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 4 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 $82 one-way, and $143 round-trip on the route from Fort Lauderdale 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 $128 return.
How many direct flights does Frontier operate to Chicago every week?
Each week there are around 83 direct flights from within the United States to Chicago. The most common day for departures is Sunday, with 18% 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 $202. On the other hand, the most expensive day to fly is Sunday, where prices are $232 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 $206 on average.
Good to know
Low season | February |
|---|---|
High season | November |
Cheapest flight | $82 |
Average price round-trip | $264 |
Good deal round-trip | $225 |
Good deal one-way | $146 |
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
Top tips for your flights to Chicago with Frontier
Frontier customer reviews
5.5
2,513 verified ratings
5.4Comfort
6.5Crew
4.2Entertainment
5.8Boarding
4.5Food
Traveler rating:
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Date
THE BARE METAL SEATS AT THE FRONTIER GATE IN CLEVELAND HOPKINS AIRPORT ARE DISGUSTING...BUT JUST A LITTLE BETTER THAN THE SEAT MATERIALS ON THE PLANE! THE "COMMERCIAL" ANNOUNCMENT PUSHING THE CREDIT CARD DEAL IS OBNOXIOUS AND UNWELCOME! THE VOLUME OF THE OFFER ANNOUNCMENET BLARES LOUDLY AND IS FILLED WITH A HYPED UP, CANNED SCRIPT. BOTTOM LINE IS THE FLIGHT AND THE CREW WERE VERY GOOD EXCEPT FOR THE ABOVE.
Maximizing profits is one way to a healthy bottom line, the other is repeat business and referrals from satisfied customers. Frontier has clearly chosen the former. One of many examples: Family emergency required me to cut trip short. Headed to the airport to fly standby for the return trip I had already paid for (yes I understand prices vary with demand etc). Was told there is no standby and that I would need to pay for, despite what it's called by the company, what amounts to a new ticket. And surprise surprise, there turned out to be dozens of empty seats on that flight. To say nothing of the sleazy third and fourth party resellers, the flight/ticket insurance I elected and thought I had paid for that mysteriously wasn't there when I needed it before I left, and on and on with third world sleazy management decisions. The inflight coffee (that I had to pay for) was very good though.
You have to be super careful when purchasing as *everything*, a carryon or a sip of soda, has a fee. They relentlessly chip away at you with surcharges and extra costs … and it’s not always clear what you are getting when you buy your ticket. Will not fly them again. And … crew were not friendly until off boarding .. like they don’t like working for Frontier.
Good for the price to value.
Air was off while waiting on the runway and the temperatures became very uncomfortably hot. Flight attendants were very loud and rude the entire flight.
I booked tickets from San Diego to Cincinnati months in advance to attend my sister’s wedding, a wedding where I was serving as the officiant. At 10:00 PM the night before my 6:00 AM flight (just 8 hours before departure), I received an alert that my first leg to Denver was delayed, causing me to miss my connecting flight to Cincinnati. When I called Frontier customer service, they informed me that they couldn't get me on any other flight that would get me there in time for the Saturday wedding, let alone the rehearsal dinner. Because I had a critical role in the wedding, I was forced to buy a last-minute ticket on another airline for three times the original price, costing me well over $1,000 extra. Even with the emergency flight, I still missed the rehearsal dinner entirely. When I spoke with Frontier, they agreed to refund my original ticket, but showed zero care or accountability for the massive financial burden and distress they caused. Their "compensation" for causing me to spend an extra $1,000+ and miss an irreplaceable family event? A $75 Frontier voucher. Frontier completely dropped the ball. Their customer service showed zero empathy, and their reliability is non-existent. I will never fly Frontier again, and no one else should either if they actually need to get where they want to go. Tip for anyone flying from Denver to Cincinnati: Avoid Frontier connecting flights or layovers at all costs, especially for time-sensitive events. Book direct flights with an airline that actually offers reliable customer support and rebooking options when delays occur.
I booked tickets from San Diego to Cincinnati months in advance to attend my sister’s wedding, a wedding where I was serving as the officiant. At 10:00 PM the night before my 6:00 AM flight (just 8 hours before departure), I received an alert that my first leg to Denver was delayed, causing me to miss my connecting flight to Cincinnati. When I called Frontier customer service, they informed me that they couldn't get me on any other flight that would get me there in time for the Saturday wedding, let alone the rehearsal dinner. Because I had a critical role in the wedding, I was forced to buy a last-minute ticket on another airline for three times the original price, it costing me well over $1,000 extra. Even with the emergency flight, I still missed the rehearsal dinner entirely. When I spoke with Frontier, they agreed to refund my original ticket, but showed zero care or accountability for the massive financial burden and distress they caused. Their "compensation” for causing me to spend an extra $1,000+ and miss an irreplaceable family event? A $75 Frontier voucher. Frontier completely dropped the ball. Their customer service showed zero empathy letting me know that it was Frontier who was the real victim by refunding my ticket price, and their reliability is non-existent. I will never fly Frontier again, and I strongly advise anyone who actually needs to arrive at their destination on time for an important event to book with literally any other airline.
Great flight!
Flight delayed and missed connection. Next available flight was a 10 hour delay.
Ability to choose to board early
More options for your flight to Chicago
Complete your trip to Chicago with a hotel stay or car rental
Other airlines flying to Chicago
Flights from the other most popular airlines that fly to Chicago according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Cabin class types available on flights to Chicago
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.
First Class flights to Chicagofrom $363
Business Class flights to Chicagofrom $151
Economy Class flights to Chicagofrom $46
Top Frontier flights
The most popular destinations for flights with Frontier according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Flights from local origins to Chicago
Flights from all regions of United States to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
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.