Key Largo

$51+ Cheap flights from Dallas/Fort Worth (DFW) 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — MIA
Jan 14 — Jan 211
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dallas/Fort Worth to Key Largo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Dallas/Fort Worth to Key Largo are usually found in September or February, booked 66 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Dallas/Fort Worth to Key Largo

Cheapest flights from Dallas/Fort Worth to Key Largo
Explore the most affordable flight options available from Dallas/Fort Worth to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Frontier deal was found by Cheapflights users on 12/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amDFW - MIA
1 stop11h 42mFrontier
Thu 1/85:21 pmMIA - DFW
Nonstop3h 39mFrontier
Deal found 12/12$111
This Expedia deal was found by Cheapflights users on 12/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amDFW - MIA
1 stop11h 42mFrontier
Mon 2/28:36 pmMIA - DFW
Nonstop3h 48mFrontier
Deal found 12/14$122
This Expedia deal was found by Cheapflights users on 12/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amDFW - MIA
1 stop11h 42mMultiple Airlines
Wed 1/710:13 amMIA - DFW
Nonstop3h 27mMultiple Airlines
Deal found 12/13$130
This Expedia deal was found by Cheapflights users on 12/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:59 pmDFW - MIA
1 stop29h 01mFrontier
Thu 1/85:21 pmMIA - DFW
Nonstop3h 39mFrontier
Deal found 12/13$141
This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:01 pmDFW - MIA
1 stop7h 03mSpirit Airlines
Sat 1/109:26 pmMIA - DFW
Nonstop3h 32mSpirit Airlines
Deal found 12/14$145
This Kiwi.com deal was found by Cheapflights users on 12/12. 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.
Wed 12/317:00 amDFW - MIA
1 stop11h 42mMultiple Airlines
Fri 1/911:38 amMIA - DFW
1 stop8h 56mMultiple Airlines
Deal found 12/12$152
This Kiwi.com deal was found by Cheapflights users on 12/12. 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.
Wed 12/311:01 pmDFW - MIA
1 stop5h 29mMultiple Airlines
Sat 1/109:26 pmMIA - DFW
Nonstop3h 32mMultiple Airlines
Deal found 12/12$156
This Super.com deal was found by Cheapflights users on 12/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:01 pmDFW - MIA
1 stop7h 03mSpirit Airlines
Tue 1/68:00 amMIA - DFW
1 stop11h 47mSpirit Airlines
Deal found 12/13$168
This Frontier deal was found by Cheapflights users on 12/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:11 pmDFW - MIA
1 stop7h 48mFrontier
Fri 1/95:03 pmMIA - DFW
Nonstop3h 39mFrontier
Deal found 12/12$171
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amDFW - MIA
1 stop11h 42mFrontier
Mon 1/510:19 pmMIA - DFW
1 stop11h 52mFrontier
Deal found 12/15$173
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:35 amDFW - MIA
2 stops30h 31mMultiple Airlines
Thu 1/85:21 pmMIA - DFW
Nonstop3h 39mMultiple Airlines
Deal found 12/13$174

Find flight deals from Dallas/Fort Worth to Key Largo

Keep the following information in mind while searching for Dallas/Fort Worth to Key Largo flight deals. Data was last updated December 15, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$98
(Kiwi.com)

One-way from

$51
(Super.com)

Popular in

June

Cheapest in

September

Average price

$280
Provider with most accurate pricing for Dallas-Miami flight deals.
Provider most trusted by Cheapflights users for Dallas-Miami flights.
From Dallas/Fort Worth to Key Largo
One-way flight from Dallas/Fort Worth to Key Largo
Highest demand for flights based on searches. 12% potential increase in price ($33 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas/Fort Worth 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 December 15, 2025.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Key Largo that are best for you.

Fly from

Dallas/Fort Worth

Fly to

Key Largo

Route

Depart

Return

Price

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Tue 1/27

5:25 am-12:14 pm

1 stop5h 49m

Miami

Tue 1/27

7:00 pm-12:27 am

1 stop6h 27m

$217

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Sat 2/7

6:35 pm-12:51 am

1 stop5h 16m

Miami

Wed 4/1

12:00 pm-5:27 pm

1 stop6h 27m

$260

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Wed 12/31

1:35 pm-10:21 pm

1 stop7h 46m

Miami

Sun 1/4

8:00 am-6:47 pm

1 stop11h 47m

$320

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Sat 2/7

7:00 am-10:35 pm

2 stops14h 35m

Miami

Sun 2/15

8:45 am-1:38 pm

1 stop5h 53m

$416

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Thu 12/18

6:50 am-5:34 pm

1 stop9h 44m

Miami

Sat 12/20

7:27 pm-12:32 am

1 stop6h 05m

$418

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Fri 1/30

7:00 am-10:20 pm

2 stops14h 20m

Miami

Sun 2/1

6:20 am-11:25 am

1 stop6h 05m

$444

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Fri 2/20

8:58 pm-11:16 am

2 stops13h 18m

Miami

Sun 3/1

8:45 am-1:38 pm

1 stop5h 53m

$444

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Fri 2/27

8:58 pm-1:37 pm

3 stops15h 39m

Miami

Sun 3/1

8:45 am-3:58 pm

1 stop8h 13m

$449

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Sat 3/7

5:39 pm-3:59 pm

2 stops21h 20m

Miami

Tue 3/10

5:59 pm-4:40 am

1 stop11h 41m

$459

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Thu 1/29

7:00 am-9:54 pm

2 stops13h 54m

Miami

Sun 2/1

6:20 am-11:25 am

1 stop6h 05m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 23 results
1
2
3

Best time to book a flight from Dallas/Fort Worth to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Key Largo

How far ahead should I book a flight from Dallas/Fort Worth Airport to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Dallas/Fort Worth to Key Largo. Price data was last updated on December 12, 2025.

Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Key Largo (average of $56). Flying from Dallas/Fort Worth Airport to Key Largo in July is currently the most expensive (average of $121). 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 DFW to KE9?

Find hourly flight availability from Dallas/Fort Worth 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 December 15, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 44% on flights from Dallas/Fort Worth Airport to Key Largo by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Dallas/Fort Worth Airport to Key Largo?

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

Travelers seeking maximum savings on their Dallas/Fort Worth Airport to Key Largo flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 15, 2025.
Read through reviews of airlines operating flights from Dallas/Fort Worth Airport to Key Largo, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Key Largo?

    Airlines like Delta, Spirit Airlines, and United Airlines fly from Dallas/Fort Worth Airport to Key Largo in about 5h 49m. The time it takes to get you to your destination can typically vary by up to 8h 46m. There are 1119 mi between Dallas/Fort Worth Airport and Key Largo. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Dallas/Fort Worth Airport to Key Largo one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $36. Users have also found prices from $43 and $68 on Spirit Airlines and American Airlines, respectively.

  • What are the most reliable airlines from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Key Largo on time: Spirit Airlines (96%), GOL (88%), Qatar Airways (81%).

  • What are the cheapest flights from Dallas/Fort Worth Airport to Key Largo?

    The cheapest flight price from Dallas/Fort Worth Airport to Key Largo is $42. On average you can expect to pay $884. The most popular route, (Dallas/Fort Worth - Miami), can usually be booked for $66.

  • Can I find deals for flights from Dallas/Fort Worth to Key Largo that include hotel bookings?

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

  • How can I find direct flights from Dallas/Fort Worth to Key Largo?

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

  • Can I find deals for business class flights from Dallas/Fort Worth to Key Largo?

    Yes. Cheapflights offers flight deals from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Key Largo (average of $56). Flying from Dallas/Fort Worth Airport to Key Largo in July is currently the most expensive (average of $121). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Dallas/Fort Worth to Key Largo

Discover the top 6 airlines that operate flights from Dallas/Fort Worth 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$172FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$94Average$193FlexibilityNo cancel feeOn-time65%
DeltaCheapest$110Average$411FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$137Average$468FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$145Average$375FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$276Average$447FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.