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Key Largo

$94+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — MIA
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Key Largo are usually found in November or April, booked 41 days in advance, depart on a Saturday or Wednesday 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 November 6, 2025.

Round-trip from

$187
(American Airlines)

One-way from

$94
(American Airlines)

Popular in

March

Cheapest in

November

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 ($1 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 November 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 November 6, 2025.

This American Airlines deal was found by Cheapflights users on 11/4. 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 12/84:20 pmPHX - MIA
Nonstop4h 15mAmerican Airlines
Fri 12/129:45 pmMIA - PHX
Nonstop5h 14mAmerican Airlines
Deal found 11/4$187
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Thu 11/206:30 amPHX - MIA
1 stop25h 32mFrontier
Tue 11/256:21 pmMIA - PHX
2 stops27h 34mFrontier
Deal found 11/4$188
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Sun 12/710:26 pmPHX - MIA
2 stops19h 13mMultiple Airlines
Sat 12/135:05 amMIA - PHX
1 stop14h 27mMultiple Airlines
Deal found 11/3$189
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 12/142:02 pmPHX - MIA
2 stops32h 44mFrontier
Thu 12/187:05 amMIA - PHX
1 stop14h 11mFrontier
Deal found 11/5$190
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/104:32 pmPHX - MIA
2 stops16h 40mMultiple Airlines
Sat 12/135:05 amMIA - PHX
1 stop14h 27mMultiple Airlines
Deal found 11/5$192
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/97:43 pmPHX - MIA
2 stops14h 59mFrontier
Thu 12/117:26 pmMIA - PHX
1 stop15h 53mFrontier
Deal found 11/4$193
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 11/217:41 pmPHX - MIA
1 stop20h 33mFrontier
Tue 12/25:58 pmMIA - PHX
2 stops21h 17mFrontier
Deal found 11/5$194
This American Airlines deal was found by Cheapflights users on 11/5. 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 11/124:20 pmPHX - MIA
Nonstop4h 15mAmerican Airlines
Wed 11/197:44 pmMIA - PHX
Nonstop5h 13mAmerican Airlines
Deal found 11/5$197
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 11/204:58 pmPHX - MIA
1 stop28h 10mMultiple Airlines
Tue 12/25:13 pmMIA - PHX
1 stop22h 02mMultiple Airlines
Deal found 11/5$198
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 11/217:41 pmPHX - MIA
1 stop20h 33mFrontier
Wed 11/266:15 amMIA - PHX
1 stop28h 40mFrontier
Deal found 11/5$199
This CheapOair deal was found by Cheapflights users on 11/5. 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.
Tue 12/97:00 amPHX - MIA
1 stop20h 19mFrontier
Thu 12/186:05 amMIA - PHX
1 stop28h 16mFrontier
Deal found 11/5$200
This Flightnetwork deal was found by Cheapflights users on 11/4. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:00 amPHX - MIA
1 stop20h 19mFrontier
Mon 12/227:05 amMIA - PHX
1 stop16h 11mFrontier
Deal found 11/4$201

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 November 6, 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 12/9

6:00 am-3:50 pm

1 stop7h 50m

Miami

Wed 12/10

5:00 pm-10:44 pm

1 stop7h 44m

$257

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Sat 1/17

11:53 pm-9:24 am

1 stop7h 31m

Miami

Sun 1/25

6:00 am-12:23 pm

1 stop8h 23m

$278

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 2/17

10:55 am-8:20 pm

2 stops7h 25m

Miami

Wed 2/18

12:00 pm-8:15 pm

1 stop10h 15m

$282

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 12/9

7:55 pm-9:27 am

2 stops11h 32m

Miami

Mon 12/15

6:00 am-12:13 pm

1 stop8h 13m

$286

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 12/4

6:49 pm-4:00 pm

1 stop19h 11m

Miami

Thu 12/11

5:00 pm-9:40 am

2 stops18h 40m

$325

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Sat 1/17

9:00 am-10:35 pm

2 stops11h 35m

Miami

Sun 1/25

9:05 am-2:19 pm

1 stop7h 14m

$332

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 1/22

12:28 am-11:18 am

1 stop8h 50m

Miami

Thu 1/29

11:05 am-10:40 pm

2 stops13h 35m

$332

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Fri 1/30

12:28 am-12:38 pm

1 stop10h 10m

Miami

Sat 2/7

10:55 am-9:38 pm

2 stops12h 43m

$332

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Sat 1/31

12:28 am-11:08 am

1 stop8h 40m

Miami

Fri 2/6

12:18 pm-11:57 pm

2 stops13h 39m

$332

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 4/28

7:30 am-6:29 pm

1 stop7h 59m

Miami

Thu 4/30

7:00 am-1:11 pm

1 stop9h 11m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

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 October 31, 2025.

Booking 41 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, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Key Largo (average of $65). Flying from Phoenix Sky Harbor Intl Airport to Key Largo in May is currently the most expensive (average of $198). 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 November 6, 2025.

It’s optimal to fly from Phoenix Sky Harbor Intl Airport to Key Largo in the afternoon. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight in the evening.

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 November 6, 2025.

The most flights from PHX to KE9 are scheduled on a Thursday (18 on average). You will have fewer flight options on Saturday, 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 November 6, 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
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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
3,115 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

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 7h 25m. 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: Qatar Airways (90%), GOL (88%), American Airlines (86%).

  • 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 $1,230, our data shows the cheapest flight currently is $113. When looking at the most popular route, (Phoenix Sky Harbor Intl - Miami), you can expect to pay $132 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, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Key Largo (average of $65). Flying from Phoenix Sky Harbor Intl Airport to Key Largo in May is currently the most expensive (average of $198). 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$68Average$210FlexibilityNo cancel feeOn-time65%
FrontierCheapest$143Average$245FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$178Average$389FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$189Average$335FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$208Average$393FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$208Average$380FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$226Average$390FlexibilityNo cancel feeOn-time75%
DeltaCheapest$237Average$358FlexibilityNo cancel feeOn-timeN/A

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