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Key Largo

$59+ Cheap flights from Raleigh (RDU) 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — MIA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Raleigh-Durham to Key Largo are usually found in August or September, booked 40 days in advance, depart on a Friday or Sunday and return on a Thursday

Cheap flight deals from Raleigh to Key Largo

Keep the following information in mind while searching for Raleigh to Key Largo flight deals. Data was last updated June 12, 2025.

Round-trip from

$99
(Frontier)

One-way from

$59
(Delta)

Popular in

December

Cheapest in

August

Average price

$207
From Raleigh-Durham to Key Largo
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One-way flight from Raleigh-Durham to Key Largo
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Highest demand for flights based on searches. 9% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Raleigh to Key Largo

Cheapest flights from Raleigh to Key Largo
Explore the most affordable flight options available from Raleigh to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Priceline deal was found by Cheapflights users on 6/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/213:30 pmRDU - MIA
Nonstop2h 15mFrontier
Fri 7/2512:07 pmMIA - RDU
Nonstop2h 25mFrontier
Deal found 6/11$99
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/248:17 amRDU - MIA
Nonstop2h 08mDelta
Tue 7/16:30 pmMIA - RDU
Nonstop2h 15mDelta
Deal found 6/10$117
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:41 amRDU - MIA
1 stop8h 12mMultiple Airlines
Fri 10/312:47 pmMIA - RDU
Nonstop2h 14mMultiple Airlines
Deal found 6/9$122
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:32 pmRDU - MIA
Nonstop2h 18mAmerican Airlines
Mon 12/89:00 pmMIA - RDU
Nonstop2h 17mAmerican Airlines
Deal found 6/11$157
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:05 pmRDU - MIA
1 stop4h 05mSouthwest
Mon 8/187:10 amMIA - RDU
1 stop4h 10mSouthwest
Deal found 6/12$167
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:41 amRDU - MIA
1 stop8h 12mSpirit Airlines
Sun 10/59:59 amMIA - RDU
1 stop6h 14mSpirit Airlines
Deal found 6/12$169

Cheapflights Fare Finder

Customize your flight search to find flights from Raleigh 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 June 12, 2025.
Use the filters below to find and compare flights from Raleigh to Key Largo that are best for you.

Fly from

Raleigh

Fly to

Key Largo

Route

Depart

Return

Price

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Mon 7/21

3:30 pm-5:45 pm

Nonstop2h 15m

Miami

Fri 7/25

12:07 pm-2:32 pm

Nonstop2h 25m

$99

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Tue 7/1

8:17 am-10:25 am

Nonstop2h 08m

Miami

Tue 7/8

6:36 pm-8:51 pm

Nonstop2h 15m

$117

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Mon 9/1

2:18 pm-4:32 pm

Nonstop2h 14m

Miami

Thu 9/4

9:59 am-4:13 pm

1 stop6h 14m

$125

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Thu 7/10

7:41 pm-9:55 pm

Nonstop2h 14m

Miami

Mon 7/14

4:47 pm-6:58 pm

Nonstop2h 11m

$147

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Wed 7/9

4:35 pm-10:20 pm

1 stop5h 45m

Miami

Wed 7/16

5:10 pm-11:00 pm

1 stop5h 50m

$151

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Fri 9/5

10:41 am-6:53 pm

1 stop8h 12m

Miami

Sun 9/14

9:59 am-4:13 pm

1 stop6h 14m

$169

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Tue 6/24

8:17 am-10:25 am

Nonstop2h 08m

$59

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Mon 7/21

3:30 pm-5:45 pm

Nonstop2h 15m

$60

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Thu 9/4

8:40 am-6:04 pm

1 stop9h 24m

$63

RaleighMiami

RDU - MIA

RDUMIA

Raleigh-Durham

Wed 7/9

4:35 pm-10:20 pm

1 stop5h 45m

$76

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 results
1
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Best time to book a flight from Raleigh to Key Largo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Key Largo. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Raleigh to Key Largo, you should look to book at least 40 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Raleigh to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Raleigh to Key Largo (average of $228). Flying from Raleigh 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 RDU to KE9?

Find hourly flight availability from Raleigh 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 June 12, 2025.

When flying from Raleigh 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 Raleigh to Key Largo?

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

Travelers seeking maximum savings on their Raleigh to Key Largo flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Raleigh to Key Largo

Explore weekly flight availability from Raleigh 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 June 12, 2025.

The most flights from RDU to KE9 are scheduled on a Wednesday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 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 June 12, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from Raleigh to Key Largo by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,946 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Raleigh 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 airport do you fly from for flights from Raleigh to Key Largo?

    Most people fly from Raleigh-Durham (RDU) if they book a flight from Raleigh to Key Largo. On average, Raleigh-Durham has 19 outbound flights to Key Largo per day from 9 airlines. Raleigh-Durham is conveniently located just 11.1 mi from Raleigh’s city center.

  • How popular is this Raleigh to Key Largo flight route?

    Flights from Raleigh-Durham to Key Largo have been viewed 127 times in the past calendar month.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $59. Users have also found prices from $60 and $63 on Frontier and Spirit Airlines, respectively.

  • What are the most reliable airlines from Raleigh to Key Largo?

    No one likes to see their flight delayed. When booking a flight from Raleigh to Key Largo consider choosing Frontier (92%), Air France (89%) or Delta (89%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Raleigh to Key Largo? While on average our users pay $843, our data indicates the cheapest price to be $50. The most popular route (Raleigh-Durham - Miami), is priced around $114.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Raleigh to Key Largo (average of $228). Flying from Raleigh 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.

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Top 9 airlines flying from Raleigh to Key Largo

Discover the top 9 airlines that operate flights from Raleigh 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$36Average$121FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$38Average$112FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$53Average$168FlexibilityNo cancel feeOn-time62%
DeltaCheapest$67Average$280FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$123Average$418FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$126Average$186FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$133Average$305FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$165Average$350FlexibilityNo cancel feeOn-time63%
Breeze AirwaysCheapest$203Average$302FlexibilityNo cancel feeOn-timeN/A

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