Frontier's UpFront Plus seats offer a guaranteed empty middle seat for added comfort.
Frontier offers Zone 1 boarding for carry-on bag purchasers and Elite members.
Round-trip from | $137 (Jettzy) |
---|---|
One-way from | $88 (Cheapflightsfares) |
Popular in | December |
Cheapest in | September |
Average price | $197 |
Good round-trip deal | $180 or less |
Good one-way deal | $141 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 10/9
9:59 pm-12:59 am
1 stop25h 00m
Chicago O'Hare Intl
Sun 10/12
9:54 pm-11:41 pm
1 stop27h 47m
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Fri 10/17
4:10 pm-1:16 am
1 stop7h 06m
Chicago O'Hare Intl
Wed 10/22
7:15 am-6:21 pm
1 stop13h 06m
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 11/5
1:16 pm-12:12 am
1 stop9h 56m
Chicago O'Hare Intl
Sun 11/9
2:22 pm-12:13 am
1 stop10h 51m
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 11/5
5:10 am-9:36 am
Nonstop3h 26m
Chicago O'Hare Intl
Sun 11/9
5:00 am-7:50 am
Nonstop3h 50m
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Fri 10/24
5:50 pm-11:05 pm
Nonstop3h 15m
Chicago Midway
Tue 10/28
6:25 am-8:10 am
Nonstop3h 45m
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Wed 11/5
6:40 pm-10:55 pm
Nonstop3h 15m
Chicago Midway
Sun 11/9
5:30 am-8:25 am
Nonstop3h 55m
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Fri 10/24
4:55 pm-10:20 pm
Nonstop3h 25m
Chicago O'Hare Intl
Tue 10/28
12:40 pm-4:00 pm
1 stop5h 20m
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Fri 10/17
4:55 pm-10:20 pm
Nonstop3h 25m
Chicago O'Hare Intl
Wed 10/22
4:20 pm-9:30 pm
1 stop7h 10m
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 10/30
6:03 pm-11:30 pm
Nonstop3h 27m
Chicago O'Hare Intl
Mon 11/3
9:15 am-12:22 pm
Nonstop4h 07m
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Fri 11/7
3:25 pm-8:01 pm
Nonstop3h 36m
Chicago O'Hare Intl
Sun 11/9
7:00 am-9:59 am
Nonstop3h 59m
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix Sky Harbor Intl Airport to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Chicago (average of $245). Flying from Phoenix Sky Harbor Intl Airport to Chicago in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Phoenix Sky Harbor Intl Airport to Chicago is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 44% on airfare.
Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Chicago flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from PHX to CHI are scheduled on a Thursday (64 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 on average).
Las Vegas (LAS) – chosen by Cheapflights users on 60% of 1-stop itineraries from Phoenix Sky Harbor Intl Airport to Chicago on Cheapflights.
Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $128.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 5h 10m.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 0h 53m.
Food
Boarding
Overall
Entertainment
Crew
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Food
Boarding
Overall
Entertainment
Crew
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Food
Boarding
Overall
Entertainment
Crew
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Food
Boarding
Overall
Entertainment
Crew
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Food
Boarding
Overall
Entertainment
Crew
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Food
Boarding
Overall
Entertainment
Crew
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$78 | Average$208 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$98 | Average$212 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$149 | Average$277 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$188 | Average$312 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$199 | Average$349 | FlexibilityNo cancel fee | On-time63% |