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Key Largo

$129+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — MIA
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 36 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 abril 29, 2025.

Round-trip from

$246
(Kiwi.com)

One-way from

$129
(Delta)

Popular in

March

Cheapest in

September

Average price

$354
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. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/1211:23 amPHX - MIA
1 stop7h 24mMultiple Airlines
mié. 7/236:44 pmMIA - PHX
1 stop7h 32mMultiple Airlines
Deal found 4/29$246
This Frontier deal was found by Cheapflights users on 4/29. 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.
lun. 5/511:23 amPHX - MIA
1 stop7h 24mFrontier
mar. 5/66:00 amMIA - PHX
1 stop9h 07mFrontier
Deal found 4/29$248
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/299:19 amPHX - MIA
3 stops32h 56mSpirit Airlines
mié. 6/43:15 pmMIA - PHX
2 stops19h 58mSpirit Airlines
Deal found 4/29$254
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/275:20 pmPHX - MIA
1 stop9h 50mDelta
lun. 9/18:00 amMIA - PHX
1 stop10h 27mDelta
Deal found 4/29$257
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/910:46 pmPHX - MIA
Nonstop4h 15mAmerican Airlines
lun. 5/199:00 pmMIA - PHX
Nonstop4h 55mAmerican Airlines
Deal found 4/29$262
This United Airlines deal was found by Cheapflights users on 4/29. 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.
vie. 7/1810:32 amPHX - MIA
2 stops10h 27mUnited Airlines
jue. 7/247:00 amMIA - PHX
1 stop7h 02mUnited Airlines
Deal found 4/29$286
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/276:15 pmPHX - MIA
1 stop20h 16mAlaska Airlines
mié. 10/85:55 pmMIA - PHX
1 stop18h 01mAlaska Airlines
Deal found 4/29$296
This Sun Country Air deal was found by Cheapflights users on 4/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/2011:59 pmPHX - MIA
1 stop8h 11mSun Country Air
dom. 6/222:08 pmMIA - PHX
1 stop21h 56mSun Country Air
Deal found 4/29$315
This Southwest deal was found by Cheapflights users on 4/29. 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.
mar. 5/279:55 amPHX - MIA
1 stop8h 35mSouthwest
mar. 6/37:35 amMIA - PHX
2 stops8h 50mSouthwest
Deal found 4/29$354

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 abril 29, 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

lun. 5/12

11:23 am-9:47 pm

1 stop7h 24m

Miami

mié. 7/23

6:44 pm-11:16 pm

1 stop7h 32m

$246

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

jue. 5/29

9:19 am-9:15 pm

3 stops32h 56m

Miami

mié. 6/4

3:15 pm-8:13 am

2 stops19h 58m

$254

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

mié. 8/27

5:20 pm-6:10 am

1 stop9h 50m

Miami

lun. 9/1

8:00 am-3:27 pm

1 stop10h 27m

$257

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

jue. 5/15

1:17 pm-5:22 am

1 stop13h 05m

Miami

jue. 5/22

6:00 am-5:22 pm

1 stop14h 22m

$259

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

vie. 5/9

10:46 pm-6:01 am

Nonstop4h 15m

Miami

lun. 5/19

9:00 pm-10:55 pm

Nonstop4h 55m

$262

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

vie. 7/18

10:32 am-11:59 pm

2 stops10h 27m

Miami

jue. 7/24

7:00 am-11:02 am

1 stop7h 02m

$286

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

sáb. 9/27

6:15 pm-5:31 pm

1 stop20h 16m

Miami

mié. 10/8

5:55 pm-8:56 am

1 stop18h 01m

$296

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

vie. 6/20

11:59 pm-11:10 am

1 stop8h 11m

Miami

dom. 6/22

2:08 pm-9:04 am

1 stop21h 56m

$315

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

mar. 5/27

9:55 am-9:30 pm

1 stop8h 35m

Miami

mar. 6/3

7:35 am-1:25 pm

2 stops8h 50m

$354

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

mar. 5/20

12:45 am-1:43 pm

1 stop9h 58m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 17 results
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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 April 25, 2025.

Booking 36 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 $228). 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 abril 29, 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 Saturday 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 abril 29, 2025.

The most flights from PHX to KE9 are scheduled on a Tuesday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

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 abril 29, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Phoenix to Key Largo to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,922 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $129. Spirit Airlines flights start at $130 while deals on Frontier start at $133 one-way.

  • 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 (88%), Finnair (82%), GOL (81%).

  • 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 $1,046, our data shows the cheapest flight currently is $134. When looking at the most popular route, (Phoenix Sky Harbor Intl - Miami), you can expect to pay $201 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 $228). 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$198FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$97Average$178FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$194Average$387FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$196Average$391FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$216Average$387FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$236Average$441FlexibilityNo cancel feeOn-time63%
DeltaCheapest$251Average$368FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$345Average$373FlexibilityNo cancel feeOn-time83%

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