Frontier's UpFront Plus offers a guaranteed empty middle seat for extra comfort.
Early check-in helps secure your seat due to frequent overbooking.
$101+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
May 20 — May 271
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 September or January, booked 88 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap 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 May 15, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $189 (Frontier) |
One-way from | $101 (Cheapflightsfares) |
Popular in | December |
Cheapest in | September |
Average price | $300 |
Good round-trip deal | $295 or less |
Good one-way deal | $137 or less |
Find 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 May 15, 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 May 15, 2025.
This CheapOair deal was found by Cheapflights users on 5/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/287:18 amPHX - ORD
1 stop14h 34mMultiple Airlines
Sun 6/19:02 pmORD - PHX
1 stop13h 11mMultiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$189
This CheapOair deal was found by Cheapflights users on 5/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/267:18 amPHX - ORD
1 stop14h 41mFrontier
Sun 7/275:40 amORD - PHX
1 stop19h 44mFrontier
Deal found 5/15![Frontier logo]()
$191
This American Airlines deal was found by Cheapflights users on 5/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/3012:30 amPHX - ORD
Nonstop3h 33mAmerican Airlines
Tue 7/18:05 amORD - PHX
1 stop6h 47mAmerican Airlines
Deal found 5/14![American Airlines logo]()
$207
This Mytrip deal was found by Cheapflights users on 5/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2612:54 pmPHX - ORD
1 stop19h 56mSpirit Airlines
Sun 6/2911:50 amORD - PHX
1 stop25h 59mSpirit Airlines
Deal found 5/13![Spirit Airlines logo]()
$224
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/912:45 amPHX - ORD
1 stop16h 33mDelta
Tue 6/176:00 amORD - PHX
1 stop19h 14mDelta
Deal found 5/13![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 5/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2611:09 pmPHX - ORD
Nonstop3h 33mUnited Airlines
Tue 7/19:15 amORD - PHX
Nonstop3h 54mUnited Airlines
Deal found 5/14![United Airlines logo]()
$235
This Sun Country Air deal was found by Cheapflights users on 5/13. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/154:50 pmPHX - ORD
1 stop22h 31mSun Country Air
Mon 6/236:18 pmORD - PHX
1 stop17h 02mSun Country Air
Deal found 5/13![Sun Country Air logo]()
$265
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/67:00 amPHX - ORD
1 stop14h 59mAlaska Airlines
Sat 9/206:20 amORD - PHX
2 stops10h 58mAlaska Airlines
Deal found 5/14![Alaska Airlines logo]()
$312
This Southwest deal was found by Cheapflights users on 5/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/14:50 pmPHX - ORD
Nonstop3h 30mSouthwest
Tue 6/101:50 pmORD - PHX
1 stop8h 55mSouthwest
Deal found 5/14![Southwest logo]()
$318
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 May 15, 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
Wed 5/28
7:18 am-11:52 pm
1 stop14h 34m
Chicago O'Hare Intl
Sun 6/1
9:02 pm-8:13 am
1 stop13h 11m
$189
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 6/26
7:18 am-11:59 pm
1 stop14h 41m
Chicago O'Hare Intl
Sun 7/27
5:40 am-11:24 pm
1 stop19h 44m
$191
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Mon 6/30
12:30 am-6:03 am
Nonstop3h 33m
Chicago O'Hare Intl
Tue 7/1
8:05 am-12:52 pm
1 stop6h 47m
$207
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 6/26
12:54 pm-10:50 am
1 stop19h 56m
Chicago O'Hare Intl
Sun 6/29
11:50 am-11:49 am
1 stop25h 59m
$224
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Mon 6/9
12:45 am-7:18 pm
1 stop16h 33m
Chicago O'Hare Intl
Wed 6/18
6:00 am-11:14 pm
1 stop19h 14m
$233
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 6/26
11:09 pm-4:42 am
Nonstop3h 33m
Chicago O'Hare Intl
Tue 7/1
9:15 am-11:09 am
Nonstop3h 54m
$235
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sun 6/15
4:50 pm-5:21 pm
1 stop22h 31m
Chicago O'Hare Intl
Thu 6/19
6:17 pm-9:32 am
1 stop17h 15m
$265
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Tue 6/10
2:05 pm-11:40 pm
1 stop7h 35m
Chicago O'Hare Intl
Wed 6/11
2:50 pm-4:40 pm
Nonstop3h 50m
$276
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sat 9/6
7:00 am-11:59 pm
1 stop14h 59m
Chicago O'Hare Intl
Sat 9/20
6:20 am-3:18 pm
2 stops10h 58m
$312
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sun 5/25
12:50 pm-8:53 pm
1 stop6h 03m
$101
Showing 1-10 of 19 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| 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*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
The best insider tips for Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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.
Airports
Our travel experts
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
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 May 9, 2025.
The best time to book flights from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport is 88 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, August 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 $245). Flying from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport 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.
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 May 15, 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 54% 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 May 11, 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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Phoenix Sky Harbor Intl Airport to Chicago O'Hare Intl Airport
Explore weekly flight availability from Sky Harbor Intl to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 15, 2025.
The most flights from PHX to ORD are scheduled on a Friday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (54 on average).
Rainfall in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.
Temperature in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
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 May 15, 2025.
To help decide which airline to fly from Phoenix to Chicago, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
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 Phoenix Sky Harbor Intl Airport?
Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locationsSchaumburg
Hoffman Estates
Rosemont
Racine
Beloit
Skokie
Naperville
Elgin
Kenosha
Tinley Park
Arlington Heights
Rockford
Orland Park
Joliet
Merrillville
Northbrook
Elk Grove Village
Glenview
Des Plaines
Lake Geneva
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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 May 15, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$65 | Average$179 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$81 | Average$208 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$166 | Average$326 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$168 | Average$312 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$217 | Average$378 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$221 | Average$256 | FlexibilityNo cancel fee | On-timeN/A |