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Key Largo

$121+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — MIA
May 14 — May 211
Thu 5/14
Thu 5/21
1 adult, Economy
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Find cheap flights from Phoenix to Key Largo with Cheapflights

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Cheapflights Tip: The best prices from Phoenix to Key Largo are usually found in October or September, booked 55 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap 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 April 14, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/9. 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 5/2112:29 pm
PHX
-
MIA
1 stop28h 45m
Frontier
Sat 5/308:10 am
MIA
-
PHX
1 stop17h 16m
Frontier
Deal found 4/9$259
This deal was found by Cheapflights users on 4/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:07 pm
PHX
-
MIA
1 stop8h 25m
Frontier
Mon 4/207:00 am
MIA
-
PHX
1 stop7h 46m
Frontier
Deal found 4/13$260
This CheapOair deal was found by Cheapflights users on 4/9. 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.
Wed 6/174:53 pm
PHX
-
MIA
1 stop10h 01m
Frontier
Mon 6/2210:06 pm
MIA
-
PHX
1 stop17h 49m
Frontier
Deal found 4/9$261
This CheapOair deal was found by Cheapflights users on 4/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:07 pm
PHX
-
MIA
1 stop8h 25m
Frontier
Mon 4/278:42 am
MIA
-
PHX
1 stop15h 10m
Frontier
Deal found 4/13$262
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Fri 5/11:00 pm
PHX
-
MIA
1 stop7h 04m
Multiple Airlines
Mon 5/411:24 am
MIA
-
PHX
2 stops26h 59m
Multiple Airlines
Deal found 4/12$263
This Super.com deal was found by Cheapflights users on 4/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/129:24 pm
PHX
-
MIA
1 stop29h 25m
Frontier
Thu 4/168:42 am
MIA
-
PHX
1 stop10h 22m
Frontier
Deal found 4/9$265
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/159:15 am
PHX
-
MIA
1 stop12h 29m
Frontier
Sun 5/176:30 am
MIA
-
PHX
2 stops29h 17m
Frontier
Deal found 4/10$266
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/2112:29 pm
PHX
-
MIA
1 stop28h 45m
Multiple Airlines
Sun 5/2411:24 am
MIA
-
PHX
2 stops14h 02m
Multiple Airlines
Deal found 4/11$267
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 5/2311:50 am
PHX
-
MIA
1 stop8h 27m
Frontier
Fri 6/58:10 am
MIA
-
PHX
2 stops31h 59m
Frontier
Deal found 4/11$268
This Trip.com deal was found by Cheapflights users on 4/11. 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.
Sun 5/36:52 pm
PHX
-
MIA
1 stop7h 13m
Multiple Airlines
Mon 5/411:06 am
MIA
-
PHX
2 stops31h 17m
Multiple Airlines
Deal found 4/11$269
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:53 pm
PHX
-
MIA
1 stop8h 01m
Frontier
Sat 6/276:00 am
MIA
-
PHX
1 stop12h 48m
Frontier
Deal found 4/14$270
This Super.com deal was found by Cheapflights users on 4/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:16 am
PHX
-
MIA
1 stop22h 06m
Frontier
Sun 4/197:00 am
MIA
-
PHX
1 stop27h 41m
Frontier
Deal found 4/10$271

Find 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 April 14, 2026.

Round-trip from

$259
(Kiwi.com)

One-way from

$121
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$392
From Phoenix to Key Largo
Search Deals
One-way flight from Phoenix to Key Largo
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 14, 2026.
Use the filters below to find and compare flights from Phoenix to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Fri 5/8

9:50 am-7:29 pm

1 stop6h 39m

Miami

Sat 5/16

6:15 am-2:28 pm

2 stops11h 13m

$372

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Tue 6/23

9:05 am-9:20 pm

2 stops9h 15m

Miami

Tue 7/7

5:45 am-11:25 am

2 stops8h 40m

$387

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Fri 5/29

10:55 pm-11:35 am

1 stop9h 40m

Miami

Sat 6/6

6:33 am-12:34 pm

1 stop9h 01m

$387

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Sat 5/9

5:30 am-5:00 pm

2 stops8h 30m

Miami

Sat 5/16

11:50 am-5:35 pm

2 stops8h 45m

$406

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 6/3

6:20 am-5:30 pm

2 stops8h 10m

Miami

Fri 6/19

5:10 am-10:55 am

2 stops8h 45m

$407

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 6/3

7:05 am-9:10 pm

2 stops11h 05m

Miami

Fri 6/5

5:35 am-10:55 am

2 stops8h 20m

$419
Quickest round-trip

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 6/11

5:00 am-4:25 pm

2 stops8h 25m

Miami

Mon 6/15

5:35 am-10:55 am

2 stops8h 20m

$461

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 5/28

7:47 pm-7:39 am

1 stop8h 52m

Miami

Mon 6/1

4:06 pm-11:22 pm

1 stop10h 16m

$467

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Thu 5/7

9:40 pm-1:10 pm

2 stops12h 30m

Miami

Tue 5/12

6:15 am-12:25 pm

2 stops9h 10m

$468

PhoenixMiami

PHX - MIA

PHXMIA

Phoenix Sky Harbor Intl

Wed 5/6

9:50 am-7:29 pm

1 stop6h 39m

Miami

Sun 5/10

6:15 am-2:28 pm

2 stops11h 13m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 April 10, 2026.

Booking 55 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, October is the cheapest month in which you can book a flight from Phoenix to Key Largo (average of $65). Flying from Phoenix to Key Largo in May is currently the most expensive (average of $221). 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 April 14, 2026.

It’s optimal to fly from Phoenix to Key Largo in the afternoon. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the evening.

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 April 11, 2026.

Travelers seeking maximum savings on their Phoenix to Key Largo flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday 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 April 14, 2026.

The most flights from PH1 to KE9 are scheduled on a Monday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost to fly round-trip from Phoenix to Key Largo?

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 April 14, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited 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
4,328 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,328 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,405 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,581 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,573 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
2,994 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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.

  • How long is the flight from Phoenix to Key Largo?

    For as low as $372, United Airlines can have you in Key Largo from Phoenix in 6h 39m. Airlines will cover a distance of 1967 mi. This flight may include one or multiple stops.

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

    $42 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Frontier and JetBlue, with prices starting from $80 and $81, respectively.

  • 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 Finnair (89%), GOL (81%) or Qatar Airways (81%) 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 $163. On average you can expect to pay $1,425. The most popular route, (Phoenix Sky Harbor Intl - Miami), can usually be booked for $164.

  • 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, October is the cheapest month in which you can book a flight from Phoenix to Key Largo (average of $65). Flying from Phoenix to Key Largo in May is currently the most expensive (average of $221). 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 April 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$65Average$198FlexibilityNo cancel feeOn-time65%
FrontierCheapest$143Average$257FlexibilityNo cancel feeOn-time62%
DeltaCheapest$148Average$371FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$157Average$327FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$178Average$348FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$218Average$436FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$226Average$390FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$226Average$327FlexibilityNo cancel feeOn-time69%

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