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Sky Harbor Intl

$53+ Cheap flights from Seattle (SEA) 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHX
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl are usually found in September or August, booked 78 days in advance, depart on a Wednesday or Monday and return on a Friday

Cheap flight deals from Seattle to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 April 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$87
(Cheapflightsfares)

One-way from

$53
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$237

Good round-trip deal

$175 or less

Good one-way deal

$104 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Phoenix Sky Harbor Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Phoenix Sky Harbor Intl flights.
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From Seattle/Tacoma Intl to Phoenix Sky Harbor Intl
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One-way flight from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 11% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl.
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Find flight deals from Seattle to Sky Harbor Intl

Cheapest flights from Seattle to Sky Harbor Intl
Explore the most affordable flight options available from Seattle to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 5/2812:31 pmSEA - PHX
Nonstop3h 02mFrontier
Mon 6/26:43 amPHX - SEA
Nonstop3h 16mFrontier
Deal found 4/16$96
This Trip.com deal was found by Cheapflights users on 4/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/109:42 pmSEA - PHX
Nonstop3h 02mMultiple Airlines
Wed 5/146:00 amPHX - SEA
Nonstop3h 10mMultiple Airlines
Deal found 4/14$124
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/48:56 pmSEA - PHX
1 stop16h 32mSpirit Airlines
Fri 5/99:19 amPHX - SEA
1 stop5h 06mSpirit Airlines
Deal found 4/15$159
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/37:59 pmSEA - PHX
Nonstop2h 50mHawaiian Airlines
Fri 6/610:32 amPHX - SEA
Nonstop3h 11mHawaiian Airlines
Deal found 4/15$162
This Delta deal was found by Cheapflights users on 4/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/149:35 amSEA - PHX
Nonstop2h 57mDelta
Thu 6/1911:10 amPHX - SEA
Nonstop3h 14mDelta
Deal found 4/15$167
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 10/175:15 pmSEA - PHX
Nonstop2h 56mAlaska Airlines
Mon 10/206:00 amPHX - SEA
Nonstop2h 59mAlaska Airlines
Deal found 4/16$187
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/138:55 pmSEA - PHX
Nonstop3h 00mSouthwest
Tue 6/172:05 pmPHX - SEA
1 stop5h 50mSouthwest
Deal found 4/15$197

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 April 16, 2025.
Use the filters below to find and compare flights from Seattle to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Seattle

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 5/28

12:31 pm-3:33 pm

Nonstop3h 02m

Phoenix Sky Harbor Intl

Mon 6/2

6:43 am-9:59 am

Nonstop3h 16m

$96

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 5/10

9:42 pm-12:44 am

Nonstop3h 02m

Phoenix Sky Harbor Intl

Wed 5/14

6:00 am-9:10 am

Nonstop3h 10m

$124

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sun 5/4

8:56 pm-1:28 pm

1 stop16h 32m

Phoenix Sky Harbor Intl

Thu 5/8

9:19 am-2:25 pm

1 stop5h 06m

$159

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Tue 6/3

11:54 am-2:47 pm

Nonstop2h 53m

Phoenix Sky Harbor Intl

Fri 6/6

10:32 am-1:43 pm

Nonstop3h 11m

$162

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 6/14

9:35 am-12:32 pm

Nonstop2h 57m

Phoenix Sky Harbor Intl

Thu 6/19

1:30 pm-4:36 pm

Nonstop3h 06m

$167

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Tue 4/29

11:20 am-2:12 pm

Nonstop2h 52m

Phoenix Sky Harbor Intl

Tue 5/6

10:33 am-1:43 pm

Nonstop3h 10m

$188

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 6/13

8:55 pm-11:55 pm

Nonstop3h 00m

Phoenix Sky Harbor Intl

Tue 6/17

2:05 pm-7:55 pm

1 stop5h 50m

$197

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 7/23

6:45 am-3:09 pm

1 stop8h 24m

Phoenix Sky Harbor Intl

Tue 8/12

4:13 pm-10:06 pm

1 stop5h 53m

$229

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sun 5/11

9:42 pm-12:44 am

Nonstop3h 02m

$53

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 5/21

6:00 am-8:13 am

1 stop26h 13m

$75

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 18 results
1
2

Compare providers for flights from Seattle to Sky Harbor 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 Seattle to Sky Harbor Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy1 starTrust Score*3 stars
FlightsMojoPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Phoenix Sky Harbor Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Phoenix Sky Harbor Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Phoenix Sky Harbor Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Seattle-Phoenix Sky Harbor 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 Seattle 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 Seattle to Phoenix Sky Harbor Intl Airport trip
Airlines
Frontier

Frontier’s UpFront Plus seats offer extra comfort with a guaranteed empty middle seat.


Early morning flights have a better chance of on-time departure and arrival.

Read more about Frontierby Marisa Garcia
Alaska Airlines

Alaska’s Wi-Fi is a bargain, allowing work during flights.


Alaska’s Premium Class offers extra legroom and free cocktails.

Read more about Alaska Airlinesby Robert Schrader
Airports
SEA

Use SEA Spot Saver for free security screening appointments to reduce wait times. Book online a few days before your flight.

Read more about SEAby Brandon Schultz
PHX

Take the PHX Sky Train to 44th Street Station for quick access to downtown via light rail or bus.

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
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Brandon Schultz

Brandon Schultz

Expert on PHX and SEA

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 Seattle to Sky Harbor Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Sky Harbor Intl. Price data was last updated on April 11, 2025.

The best time to book flights from Seattle to Phoenix Sky Harbor Intl Airport is 78 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 Seattle to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Seattle 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 SEA to PHX?

Find hourly flight availability from Seattle 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 April 16, 2025.

One of the essential ways to save on airfare from Seattle to Phoenix Sky Harbor Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 35% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Sky Harbor Intl. Price data was last updated on March 30, 2025.

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

Weekly flight availability from Seattle to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Seattle 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 April 16, 2025.

The most flights from SEA to PHX are scheduled on a Wednesday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (34 on average).

Rainfall in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix Sky Harbor Intl Airport ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Phoenix Sky Harbor Intl Airport when rainfall is around 0.0 in.

Temperature in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix Sky Harbor 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 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

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 April 16, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Seattle to Phoenix have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,282 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,380 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,665 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle 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 airport do you fly from for flights from Seattle to Phoenix Sky Harbor Intl?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Phoenix Sky Harbor Intl from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Phoenix Sky Harbor Intl should be relatively easy as there are 52 daily outbound flights to Phoenix Sky Harbor Intl from 9 different airlines.

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

    Frontier, at $87, was found to be the cheapest airline from Seattle to Phoenix Sky Harbor Intl Airport.Alternate airlines to your destination round-trip include Spirit Airlines and Hawaiian Airlines. Frontier is priced at 57% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Seattle to Phoenix Sky Harbor Intl Airport are Frontier ($53), Spirit Airlines ($75), and Hawaiian Airlines ($80).

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

    Consider Envoy Air (100%), Air France (93%) or Aeromexico (87%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Phoenix Sky Harbor Intl Airport.

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

    Looking for the cheapest flight from Seattle to Phoenix Sky Harbor Intl Airport? While on average our users pay $445, our data indicates the cheapest price to be $80. The most popular route (Seattle/Tacoma Intl - Phoenix Sky Harbor Intl), is priced around $114.

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

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

  • How can I find direct flights from Seattle 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 Seattle to Sky Harbor Intl.

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Phoenix Sky Harbor Intl Airport?

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

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Top 8 airlines flying from Seattle to Sky Harbor Intl

Discover the top 8 airlines that operate flights from Seattle 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 April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$44Average$139FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$83Average$223FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$86Average$142FlexibilityNo cancel feeOn-time65%
DeltaCheapest$97Average$225FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$123Average$274FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$134Average$281FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$165Average$328FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$336FlexibilityNo cancel feeOn-time69%

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