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Key Largo

$93+ Cheap flights from Sky Harbor Intl (PHX) to Key Largo, FL

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — MIA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Key Largo are usually found in September or April, booked 49 days in advance, depart on a Saturday or Thursday and return on a Wednesday

Cheap flight deals from Sky Harbor Intl to Key Largo

Keep the following information in mind while searching for Sky Harbor Intl to Key Largo flight deals. Data was last updated September 16, 2025.

Round-trip from

$184
(Southwest)

One-way from

$93
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$361
From Phoenix Sky Harbor Intl to Key Largo
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One-way flight from Phoenix Sky Harbor Intl to Key Largo
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Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Sky Harbor Intl to Key Largo

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

This Southwest deal was found by Cheapflights users on 9/15. 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.
Mon 10/2710:10 amPHX - MIA
2 stops9h 40mSouthwest
Thu 10/306:50 amMIA - PHX
1 stop8h 50mSouthwest
Deal found 9/15$184
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:49 amPHX - MIA
Nonstop4h 27mAmerican Airlines
Tue 10/147:11 pmMIA - PHX
Nonstop4h 59mAmerican Airlines
Deal found 9/16$185
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/105:29 pmPHX - MIA
1 stop27h 14mFrontier
Thu 10/166:00 amMIA - PHX
1 stop28h 59mFrontier
Deal found 9/15$186
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:09 amPHX - MIA
1 stop10h 35mFrontier
Sat 9/276:45 amMIA - PHX
1 stop12h 17mFrontier
Deal found 9/14$188
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:25 amPHX - MIA
1 stop28h 06mFrontier
Thu 9/257:25 amMIA - PHX
1 stop18h 31mFrontier
Deal found 9/13$190
This Frontier deal was found by Cheapflights users on 9/14. 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.
Mon 9/297:25 amPHX - MIA
1 stop12h 35mFrontier
Fri 10/39:28 amMIA - PHX
2 stops16h 31mFrontier
Deal found 9/14$191
This Frontier deal was found by Cheapflights users on 9/14. 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.
Sat 10/181:10 pmPHX - MIA
1 stop7h 33mFrontier
Sat 10/257:00 amMIA - PHX
2 stops17h 55mFrontier
Deal found 9/14$193
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/1811:59 pmPHX - MIA
Nonstop4h 09mAmerican Airlines
Sat 10/2511:12 amMIA - PHX
Nonstop4h 57mAmerican Airlines
Deal found 9/14$194
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/271:00 pmPHX - MIA
1 stop22h 15mFrontier
Fri 10/35:30 amMIA - PHX
1 stop9h 02mFrontier
Deal found 9/14$195
This Frontier deal was found by Cheapflights users on 9/15. 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.
Thu 10/235:15 amPHX - MIA
2 stops16h 19mFrontier
Mon 11/35:05 amMIA - PHX
1 stop11h 58mFrontier
Deal found 9/15$197
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/195:29 pmPHX - MIA
1 stop18h 09mFrontier
Thu 10/234:49 pmMIA - PHX
1 stop7h 29mFrontier
Deal found 9/15$198

Cheapflights Fare Finder

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

Fly from

Sky Harbor Intl

Fly to

Key Largo

Route

Depart

Return

Price

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 10/14

6:00 am-3:47 pm

1 stop6h 47m

Miami

Tue 10/21

12:06 pm-5:44 pm

1 stop8h 38m

$222

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 12/10

5:10 am-4:15 pm

2 stops9h 05m

Miami

Wed 12/17

12:40 pm-7:55 pm

2 stops9h 15m

$247

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 10/28

12:40 am-1:28 pm

1 stop9h 48m

Miami

Mon 11/3

6:45 pm-12:38 am

1 stop7h 53m

$257

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 10/21

12:40 am-1:28 pm

1 stop9h 48m

Miami

Tue 10/28

7:10 am-2:01 pm

1 stop9h 51m

$257

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 12/10

8:05 pm-6:25 am

1 stop8h 20m

Miami

Wed 12/17

2:37 pm-9:23 pm

1 stop8h 46m

$257

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 10/29

12:40 am-1:28 pm

1 stop9h 48m

Miami

Mon 11/3

6:45 pm-12:38 am

1 stop7h 53m

$257

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 10/7

10:50 am-9:55 pm

2 stops8h 05m

Miami

Tue 10/14

3:15 pm-8:00 pm

1 stop7h 45m

$260

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 10/21

3:44 pm-5:29 pm

1 stop22h 45m

Miami

Mon 10/27

6:46 pm-9:55 am

1 stop18h 09m

$262

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 12/9

7:00 am-3:50 pm

1 stop6h 50m

Miami

Mon 12/15

7:00 am-12:16 pm

1 stop7h 16m

$267

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Sun 9/21

9:45 pm-10:55 am

1 stop10h 10m

Miami

Tue 11/4

1:45 pm-7:15 pm

1 stop7h 30m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 19 results
1
2

Best time to book a flight from Sky Harbor Intl to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo 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 Key Largo

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Key Largo. Price data was last updated on September 12, 2025.

Booking 49 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 Key Largo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Key Largo (average of $232). Flying from Phoenix Sky Harbor Intl Airport to Key Largo in March is currently the most expensive (average of $289). 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 KE9?

Find hourly flight availability from Sky Harbor Intl to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Phoenix Sky Harbor Intl Airport to Key Largo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Key Largo flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday afternoons 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 Key Largo

Explore weekly flight availability from Sky Harbor Intl to Key Largo. 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 September 16, 2025.

The most flights from PHX to KE9 are scheduled on a Thursday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Key Largo, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Key Largo?

    Departing from Phoenix Sky Harbor Intl Airport to Key Largo will take you 6h 47m. Phoenix Sky Harbor Intl Airport and Key Largo are separated by a distance of 1967 mi. This flight may include one or multiple stops.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phoenix Sky Harbor Intl Airport to Key Largo on time: Royal Air Maroc (92%), Qatar Airways (87%), Alaska Airlines (83%).

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

    While on average a flight from Phoenix Sky Harbor Intl Airport to Key Largo is generally $977, our data shows the cheapest flight currently is $130. When looking at the most popular route, (Phoenix Sky Harbor Intl - Miami), you can expect to pay $164 for that flight.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Key Largo (average of $232). Flying from Phoenix Sky Harbor Intl Airport to Key Largo in March is currently the most expensive (average of $289). 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 Sky Harbor Intl to Key Largo

Discover the top 8 airlines that operate flights from Sky Harbor Intl to Key Largo. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$117Average$220FlexibilityNo cancel feeOn-time65%
FrontierCheapest$139Average$245FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$196Average$379FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$208Average$395FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$383FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$226Average$397FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$231Average$425FlexibilityNo cancel feeOn-time63%
DeltaCheapest$256Average$363FlexibilityNo cancel feeOn-timeN/A

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