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Sky Harbor Intl

$94+ Cheap flights from Chicago (CHI) to Sky Harbor Intl (PHX)

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — PHX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Phoenix Sky Harbor Intl are usually found in September or August, booked 74 days in advance, depart on a Wednesday or Friday and return on a Thursday

Cheap flight deals from Chicago to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Sky Harbor Intl (PHX). 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 July 30, 2025.

Round-trip from

$170
(Priceline)

One-way from

$95
(Lucky2Go)

Popular in

March

Cheapest in

September

Average price

$257

Good round-trip deal

$210 or less

Good one-way deal

$109 or less
From Chicago (CHI) to Phoenix Sky Harbor Intl
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One-way flight from Chicago (CHI) to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 6% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Phoenix Sky Harbor Intl.
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Find flight deals from Chicago to Sky Harbor Intl

Cheapest flights from Chicago to Sky Harbor Intl
Explore the most affordable flight options available from Chicago to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Priceline deal was found by Cheapflights users on 7/29. 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.
Fri 8/152:15 pmORD - PHX
Nonstop4h 06mFrontier
Mon 8/185:11 pmPHX - ORD
Nonstop3h 44mFrontier
Deal found 7/29$170
This Frontier deal was found by Cheapflights users on 7/29. 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.
Sun 9/71:53 pmMDW - PHX
Nonstop3h 47mFrontier
Sun 9/144:35 pmPHX - MDW
Nonstop3h 23mFrontier
Deal found 7/29$173
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/192:07 pmORD - PHX
Nonstop4h 04mMultiple Airlines
Sun 9/2112:14 pmPHX - ORD
1 stop8h 34mMultiple Airlines
Deal found 7/29$173
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 11/67:00 pmORD - PHX
1 stop6h 16mSpirit Airlines
Mon 11/101:12 pmPHX - ORD
1 stop9h 31mSpirit Airlines
Deal found 7/30$180
This Southwest deal was found by Cheapflights users on 7/29. 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 8/316:20 amMDW - PHX
Nonstop3h 40mSouthwest
Wed 9/35:40 pmPHX - MDW
Nonstop3h 20mSouthwest
Deal found 7/29$188
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 8/206:55 pmORD - PHX
Nonstop3h 54mAmerican Airlines
Sun 8/317:00 pmPHX - ORD
Nonstop3h 35mAmerican Airlines
Deal found 7/30$188
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/269:15 amORD - PHX
Nonstop3h 50mUnited Airlines
Tue 9/27:04 amPHX - ORD
Nonstop3h 39mUnited Airlines
Deal found 7/29$197
This Southwest deal was found by Cheapflights users on 7/30. 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.
Fri 8/294:20 pmORD - PHX
1 stop7h 40mSouthwest
Sun 8/3112:25 pmPHX - ORD
Nonstop3h 30mSouthwest
Deal found 7/30$208
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 9/1610:00 amORD - PHX
1 stop9h 10mAlaska Airlines
Sat 9/2012:00 pmPHX - ORD
1 stop8h 07mAlaska Airlines
Deal found 7/30$216

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Sky Harbor 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 July 30, 2025.
Use the filters below to find and compare flights from Chicago to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Chicago

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 8/15

2:15 pm-4:21 pm

Nonstop4h 06m

Phoenix Sky Harbor Intl

Mon 8/18

5:11 pm-10:55 pm

Nonstop3h 44m

$170

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 9/19

2:07 pm-4:11 pm

Nonstop4h 04m

Phoenix Sky Harbor Intl

Sun 9/21

12:14 pm-10:48 pm

1 stop8h 34m

$173

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sun 9/7

1:53 pm-3:40 pm

Nonstop3h 47m

Phoenix Sky Harbor Intl

Sun 9/14

4:35 pm-9:58 pm

Nonstop3h 23m

$173

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sun 8/31

6:20 am-8:00 am

Nonstop3h 40m

Phoenix Sky Harbor Intl

Wed 9/3

5:40 pm-11:00 pm

Nonstop3h 20m

$188

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 8/20

6:55 pm-8:49 pm

Nonstop3h 54m

Phoenix Sky Harbor Intl

Sun 8/31

7:00 pm-12:35 am

Nonstop3h 35m

$188

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 8/26

9:15 am-11:05 am

Nonstop3h 50m

Phoenix Sky Harbor Intl

Tue 9/2

7:04 am-12:43 pm

Nonstop3h 39m

$197

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 8/29

4:20 pm-10:00 pm

1 stop7h 40m

Phoenix Sky Harbor Intl

Sun 8/31

12:25 pm-5:55 pm

Nonstop3h 30m

$208

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 9/16

6:20 am-12:54 pm

1 stop8h 34m

Phoenix Sky Harbor Intl

Sat 9/20

12:00 pm-10:07 pm

1 stop8h 07m

$216

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 10/8

3:50 pm-10:39 pm

1 stop8h 49m

Phoenix Sky Harbor Intl

Mon 10/13

4:17 pm-11:59 pm

1 stop29h 42m

$220

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Wed 8/27

9:30 am-1:43 pm

1 stop6h 13m

Phoenix Sky Harbor Intl

Mon 9/1

10:37 am-6:37 pm

1 stop6h 00m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 23 results
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The best insider tips for Chicago to Phoenix Sky Harbor 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 Chicago to Phoenix Sky Harbor Intl Airport trip
Airlines
Frontier

Frontier's UpFront Plus seats offer a guaranteed empty middle seat for extra comfort.


Early check-in helps secure your place as Frontier overbooks flights frequently.

Read more about Frontierby Marisa Garcia
United Airlines

United's Economy Plus offers extra legroom towards the front of the economy cabin.


United's Polaris Lounges offer showers, daybeds, and restaurant-style dining.

Read more about United Airlinesby Harriet Baskas
Airports
ORD

ORD's free shuttle train connects terminals, easing navigation for travelers. Plan for long walks between gates.

Read more about ORDby Ramsey Qubein
MDW

Use the 'L' train for a quick, cheap ride to MDW. The Orange Line takes less than 30 minutes from downtown Chicago.

Read more about MDWby Ramsey Qubein
PHX

For quick city access, take a taxi from PHX. It's faster and cheaper than rideshares, with a flat rate to downtown.

Read more about PHXby Brandon Schultz
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on PHX

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Chicago to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Chicago 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 Chicago to Phoenix Sky Harbor Intl Airport

How far ahead should I book a flight from Chicago to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Sky Harbor Intl. Price data was last updated on July 25, 2025.

The price you pay for your flight from Chicago to Phoenix Sky Harbor Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 74 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Chicago to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Chicago to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). 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 CHI to PHX?

Find hourly flight availability from Chicago to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

When flying from Chicago to Phoenix Sky Harbor Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 22% versus a flight in the morning.

What is the cheapest day to fly from Chicago to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Sky Harbor Intl. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Chicago to Phoenix Sky Harbor Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Chicago to Sky Harbor 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 July 30, 2025.

The most flights from CHI to PHX are scheduled on a Monday (61 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (31 on average).

How much does it cost to fly round-trip from Chicago to Phoenix Sky Harbor Intl Airport?

What’s the top layover airport for flights from Chicago to Phoenix Sky Harbor Intl Airport?

Share of 1-stop round-trip flights from Chicago to Phoenix Sky Harbor Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 40% of 1-stop itineraries from Chicago to Phoenix Sky Harbor Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Phoenix Sky Harbor Intl Airport?

Average round-trip fare for 1-stop flights from Chicago to Phoenix Sky Harbor 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 Chicago to Phoenix Sky Harbor Intl Airport?

Shortest average travel time for 1-stop one-way flights from Chicago to Phoenix Sky Harbor 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: 5h 42m.

Which airport typically offers the quickest layover for flights from Chicago to Phoenix Sky Harbor Intl Airport?

Average layover duration for 1-stop one-way flights from Chicago to Phoenix Sky Harbor 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 1h 31m.

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor 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 Sky Harbor Intl. Reviews last updated July 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Chicago to Phoenix Sky Harbor Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Chicago to Phoenix Sky Harbor Intl Airport round-trip?

    According to our current data, Frontier ($170), Southwest ($179), and American Airlines ($188) offers the cheapest pricing from Chicago to Phoenix Sky Harbor Intl Airport. Frontier is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Chicago to Phoenix Sky Harbor Intl Airport one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $95. Users have also found prices from $99 and $99 on Southwest and Hawaiian Airlines, respectively.

  • What are the most reliable airlines from Chicago to Phoenix Sky Harbor Intl Airport?

    Consider Brussels Airlines (89%), United Airlines (86%) or Air Canada (84%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Phoenix Sky Harbor Intl Airport.

  • What are the cheapest flights from Chicago to Phoenix Sky Harbor Intl Airport?

    Looking at all options, your cheapest flight can be booked for $95. While the most popular route (Chicago O'Hare Intl - Phoenix Sky Harbor Intl) can be booked for $127 on average our data indicates $825 when flying from Chicago to Phoenix Sky Harbor Intl Airport.

  • Can I find deals for flights from Chicago to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Chicago to Sky Harbor Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Sky Harbor Intl.

  • Can I find deals for business class flights from Chicago to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Chicago to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Chicago to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). 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.

See more FAQs

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 locations
Chandler
Payson
Peoria
Glendale
Globe
Goodyear
Surprise
Buckeye
Camp Verde
Casa Grande
Paradise Valley
Avondale
Guadalupe

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Top 7 airlines flying from Chicago to Sky Harbor Intl

Discover the top 7 airlines that operate flights from Chicago to Sky Harbor 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$87Average$213FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$98Average$219FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$154Average$212FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$178Average$320FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$179Average$371FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$206Average$362FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$379FlexibilityNo cancel feeOn-timeN/A

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