Frontier's UpFront Plus offers a guaranteed empty middle seat for extra comfort.
Early check-in helps secure your seat due to frequent overbooking.
$64+ Cheap flights from Sky Harbor Intl (PHX) to O'Hare Intl (ORD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Jan 17 — Jan 241
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Sky Harbor Intl to O'Hare Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Chicago O'Hare Intl are usually found in January or February, booked 39 days in advance, depart on a Friday or Thursday and return on a Wednesday
Cheap flight deals from Sky Harbor Intl to O'Hare Intl
Cheapest flights from Sky Harbor Intl to O'Hare IntlExplore the most affordable flight options available from Sky Harbor Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
Explore the most affordable flight options available from Sky Harbor Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:40 pmPHX - ORD
Nonstop3h 43mFrontier
Thu 1/19:33 pmORD - PHX
Nonstop3h 54mFrontier
Deal found 12/17![Frontier logo]()
$149
This Cheapflightsfares deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:58 amPHX - ORD
1 stop27h 19mFrontier
Mon 1/51:32 pmORD - PHX
Nonstop4h 08mFrontier
Deal found 12/15![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amPHX - ORD
1 stop16h 12mFrontier
Sun 1/410:49 pmORD - PHX
1 stop10h 59mFrontier
Deal found 12/17![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:43 pmPHX - ORD
1 stop7h 29mFrontier
Thu 1/19:33 pmORD - PHX
Nonstop3h 54mFrontier
Deal found 12/15![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:40 pmPHX - ORD
Nonstop3h 43mFrontier
Sat 1/39:55 pmORD - PHX
Nonstop3h 54mFrontier
Deal found 12/14![Frontier logo]()
$182
This Expedia deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:31 pmPHX - ORD
1 stop24h 41mFrontier
Mon 1/197:31 pmORD - PHX
Nonstop4h 13mFrontier
Deal found 12/15![Frontier logo]()
$186
This Priceline deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:00 amPHX - ORD
1 stop10h 22mFrontier
Sat 1/176:02 pmORD - PHX
Nonstop4h 14mFrontier
Deal found 12/15![Frontier logo]()
$195
Find flight deals from Sky Harbor Intl to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $94 (Kiwi.com) |
One-way from | $64 (Super.com) |
Popular in | June |
Cheapest in | January |
Average price | $296 |
Good round-trip deal | $235 or less |
Good one-way deal | $124 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Sky Harbor Intl to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport that are best for you.
Fly from
Sky Harbor Intl
Fly to
O'Hare Intl
Route
Depart
Return
Price
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sat 1/17
9:05 am-1:30 pm
Nonstop3h 25m
Chicago O'Hare Intl
Sat 1/24
2:15 pm-5:20 pm
Nonstop4h 05m
$177
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 1/14
10:22 am-2:55 pm
Nonstop3h 33m
Chicago O'Hare Intl
Wed 1/21
7:57 pm-10:59 pm
Nonstop4h 02m
$191
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 1/21
12:28 pm-5:00 pm
Nonstop3h 32m
Chicago O'Hare Intl
Wed 1/28
7:57 pm-10:59 pm
Nonstop4h 02m
$191
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Tue 1/13
3:45 pm-11:37 pm
1 stop6h 52m
Chicago O'Hare Intl
Tue 1/20
8:00 am-5:53 pm
1 stop10h 53m
$203
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 1/21
8:10 am-12:44 pm
Nonstop3h 34m
Chicago O'Hare Intl
Sun 1/25
9:25 am-12:35 pm
Nonstop4h 10m
$204
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 1/22
3:45 pm-11:37 pm
1 stop6h 52m
Chicago O'Hare Intl
Sun 1/25
9:00 am-3:03 pm
1 stop7h 03m
$206
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 1/22
3:45 pm-11:37 pm
1 stop6h 52m
Chicago O'Hare Intl
Fri 1/23
3:44 pm-11:22 pm
1 stop8h 38m
$206
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Tue 1/27
3:50 pm-8:24 pm
Nonstop3h 34m
Chicago O'Hare Intl
Sun 2/1
12:55 pm-3:57 pm
Nonstop4h 02m
$208
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Fri 1/23
12:59 am-10:25 am
1 stop8h 26m
Chicago O'Hare Intl
Sat 1/24
3:24 pm-9:54 pm
1 stop7h 30m
$217
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Tue 1/6
9:05 am-1:30 pm
Nonstop3h 25m
Chicago O'Hare Intl
Sat 1/10
2:15 pm-5:20 pm
Nonstop4h 05m
$228
Showing 1-10 of 23 results
Compare providers for flights from Sky Harbor Intl to O'Hare Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to O'Hare Intl in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Chicago O'Hare Intl Airport flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Phoenix Sky Harbor Intl Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Chicago O'Hare Intl Airport flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Sky Harbor Intl to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Sky Harbor Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport
Prices
Delays
More
How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to O'Hare Intl. Price data was last updated on December 12, 2025.
The best time to book flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport (average of $78). Flying from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $191). 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.
What is the cheapest time of day to fly from PHX to ORD?
Find hourly flight availability from Sky Harbor Intl to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.
It’s optimal to fly from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport in the afternoon. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to O'Hare Intl. Price data was last updated on December 13, 2025.
Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Phoenix to Chicago delayed?
About 9% of weekly flights between Phoenix and Chicago have experienced delays in the past year, with the average delay time being 159 minutes.
What is the most punctual flight time for Phoenix to Chicago flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Phoenix to Chicago flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 6% of flights being delayed.
What’s the top layover airport for flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport?
Share of 1-stop round-trip flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Orlando (MCO) – chosen by Cheapflights users on 50% of 1-stop itineraries from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport?
Average round-trip fare for 1-stop flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $148.
What’s the fastest layover option from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport?
Shortest average travel time for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 12h 54m.
Which airport typically offers the quickest layover for flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport?
Average layover duration for 1-stop one-way flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 8h 21m.
The best insider tips for Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport trip
Airlines
![Frontier]()
Frontier
![United Airlines]()
United Airlines
United's Economy Plus offers extra legroom towards the front of the economy cabin.
Prepay for checked bags 24 hours before to save on fees.
![Southwest]()
Southwest
Enjoy free snacks and non-alcoholic drinks; alcoholic drinks available on special occasions.
Southwest offers free messaging and high-speed Wi-Fi for a fee on flights.
Airports
Our travel experts
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated December 18, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
7.9
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Sky Harbor Intl to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsSchaumburg
Rosemont
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Lake Geneva
Bridgeview
Warrenville
Waukegan
Aurora
Kenosha
Evanston
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Alternative routes for Sky Harbor Intl to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Sky Harbor Intl to O'Hare Intl
Discover the top 6 airlines that operate flights from Sky Harbor Intl to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$208 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$81 | Average$208 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$162 | Average$355 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$182 | Average$322 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$189 | Average$322 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$307 | FlexibilityNo cancel fee | On-time71% |