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Key Largo

$104+ Cheap flights from Phoenix 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — MIA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Key Largo are usually found in September or April, booked 41 days in advance, depart on a Saturday or Thursday and return on a Wednesday

Cheap flight deals from Phoenix to Key Largo

Keep the following information in mind while searching for Phoenix to Key Largo flight deals. Data was last updated August 14, 2025.

Round-trip from

$197
(Frontier)

One-way from

$104
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$393
From Phoenix to Key Largo
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One-way flight from Phoenix to Key Largo
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Highest demand for flights based on searches. 1% potential increase in price ($3 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 August 2025
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Find flight deals from Phoenix to Key Largo

Cheapest flights from Phoenix to Key Largo
Explore the most affordable flight options available from Phoenix to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Frontier deal was found by Cheapflights users on 8/14. 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.
Fri 10/175:15 amPHX - MIA
2 stops16h 19mFrontier
Sat 10/256:00 amMIA - PHX
1 stop12h 04mFrontier
Deal found 8/14$197
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 10/27:25 amPHX - MIA
1 stop12h 35mFrontier
Sat 10/116:00 amMIA - PHX
1 stop8h 14mFrontier
Deal found 8/14$198
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 10/27:25 amPHX - MIA
1 stop12h 35mFrontier
Sun 10/56:00 amMIA - PHX
1 stop14h 13mFrontier
Deal found 8/14$199
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:00 amPHX - MIA
1 stop13h 44mFrontier
Sat 9/1312:18 pmMIA - PHX
2 stops12h 35mFrontier
Deal found 8/13$200
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1712:50 pmPHX - MIA
Nonstop4h 28mAmerican Airlines
Sat 9/207:45 amMIA - PHX
Nonstop4h 52mAmerican Airlines
Deal found 8/13$201
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Wed 9/312:11 pmPHX - MIA
2 stops17h 50mMultiple Airlines
Fri 9/55:30 amMIA - PHX
1 stop9h 02mMultiple Airlines
Deal found 8/14$202
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Thu 9/412:31 pmPHX - MIA
1 stop7h 56mMultiple Airlines
Thu 9/117:54 pmMIA - PHX
2 stops17h 20mMultiple Airlines
Deal found 8/14$203
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:25 amPHX - MIA
2 stops14h 09mFrontier
Thu 10/164:49 pmMIA - PHX
1 stop7h 37mFrontier
Deal found 8/13$204
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Wed 9/178:00 amPHX - MIA
1 stop13h 44mMultiple Airlines
Wed 10/16:59 pmMIA - PHX
1 stop20h 52mMultiple Airlines
Deal found 8/14$205
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/2712:39 pmPHX - MIA
1 stop9h 05mFrontier
Sat 10/46:45 amMIA - PHX
1 stop7h 47mFrontier
Deal found 8/12$206
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Thu 9/412:50 pmPHX - MIA
Nonstop4h 28mAmerican Airlines
Thu 9/117:59 pmMIA - PHX
Nonstop4h 59mAmerican Airlines
Deal found 8/12$207

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix 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 August 14, 2025.
Use the filters below to find and compare flights from Phoenix to Key Largo that are best for you.

Fly from

Phoenix

Fly to

Key Largo

Route

Depart

Return

Price

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 10/2

7:25 am-11:00 pm

1 stop12h 35m

Miami

Sat 10/11

6:00 am-11:14 am

1 stop8h 14m

$198

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 10/2

7:25 am-11:00 pm

1 stop12h 35m

Miami

Sun 10/5

6:00 am-5:13 pm

1 stop14h 13m

$199

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 10/22

4:14 pm-6:19 am

1 stop11h 05m

Miami

Sat 11/1

7:05 am-7:59 pm

2 stops15h 54m

$199

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 9/10

8:00 am-12:44 am

1 stop13h 44m

Miami

Sat 9/13

12:18 pm-9:53 pm

2 stops12h 35m

$200

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Mon 11/10

6:00 am-11:52 pm

2 stops15h 52m

Miami

Fri 11/14

6:00 am-6:20 pm

1 stop14h 20m

$200

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 9/17

12:50 pm-8:18 pm

Nonstop4h 28m

Miami

Sat 9/20

7:45 am-9:37 am

Nonstop4h 52m

$201

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 10/8

8:49 am-4:16 pm

Nonstop4h 27m

Miami

Wed 10/15

7:36 am-9:38 am

Nonstop5h 02m

$201

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Sat 11/1

10:59 pm-6:06 am

Nonstop4h 07m

Miami

Sat 11/8

7:10 am-10:22 am

Nonstop5h 12m

$201

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 9/11

12:31 pm-11:27 pm

1 stop7h 56m

Miami

Thu 9/18

6:00 am-10:14 am

1 stop7h 14m

$201

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 10/9

7:25 am-12:34 am

2 stops14h 09m

Miami

Thu 10/16

4:49 pm-9:26 pm

1 stop7h 37m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 23 results
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Best time to book a flight from Phoenix to Key Largo

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

How far ahead should I book a flight from Phoenix to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Key Largo. Price data was last updated on August 8, 2025.

Booking 41 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix 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 to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Phoenix to Key Largo (average of $232). Flying from Phoenix 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 Phoenix 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 August 14, 2025.

When flying from Phoenix 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 to Key Largo?

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

Travelers seeking maximum savings on their Phoenix 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 to Key Largo

Explore weekly flight availability from Phoenix 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 August 14, 2025.

The most flights from PH1 to KE9 are scheduled on a Thursday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (14 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 August 14, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Phoenix to Key Largo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,046 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,217 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Phoenix 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 most reliable airlines from Phoenix to Key Largo?

    No one likes to see their flight delayed. When booking a flight from Phoenix to Key Largo consider choosing Qatar Airways (89%), Iberia (85%) or GOL (82%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Phoenix to Key Largo?

    The cheapest flight price from Phoenix to Key Largo is $158. On average you can expect to pay $1,044. The most popular route, (Phoenix Sky Harbor Intl - Miami), can usually be booked for $167.

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

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

  • How can I find direct flights from Phoenix to Key Largo?

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

  • Can I find deals for business class flights from Phoenix to Key Largo?

    Yes. Cheapflights offers flight deals from Phoenix 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 to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Phoenix to Key Largo (average of $232). Flying from Phoenix 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 Phoenix to Key Largo

Discover the top 8 airlines that operate flights from Phoenix 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$106Average$195FlexibilityNo cancel feeOn-time65%
FrontierCheapest$137Average$244FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$158Average$374FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$205Average$388FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$386FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$226Average$397FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$237Average$433FlexibilityNo cancel feeOn-time63%
DeltaCheapest$256Average$365FlexibilityNo cancel feeOn-timeN/A

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