HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$47+ Cheap flights from Dallas 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — MIA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dallas 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 to Key Largo are usually found in September or October, booked 28 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Dallas to Key Largo

Keep the following information in mind while searching for Dallas to Key Largo flight deals. Data was last updated September 16, 2025.

Round-trip from

$80
(Priceline)

One-way from

$47
(Cheapflightsfares)

Popular in

June

Cheapest in

September

Average price

$143
From Dallas to Key Largo
Search Deals
One-way flight from Dallas to Key Largo
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Dallas to Key Largo

Cheapest flights from Dallas to Key Largo
Explore the most affordable flight options available from Dallas to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:59 pmDFW - MIA
Nonstop2h 58mFrontier
Mon 10/68:02 pmMIA - DFW
Nonstop3h 37mFrontier
Deal found 9/14$80
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 9/285:05 amDFW - MIA
Nonstop2h 54mMultiple Airlines
Fri 10/37:23 pmMIA - DFW
Nonstop3h 32mMultiple Airlines
Deal found 9/14$83
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/261:44 pmDFW - MIA
Nonstop2h 49mFrontier
Fri 10/319:30 amMIA - DFW
Nonstop3h 31mFrontier
Deal found 9/14$84
This Gotogate deal was found by Cheapflights users on 9/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:21 pmDFW - MIA
Nonstop2h 48mFrontier
Mon 11/37:25 amMIA - DFW
Nonstop3h 23mFrontier
Deal found 9/13$85
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:05 amDFW - MIA
Nonstop2h 54mSpirit Airlines
Fri 10/37:54 pmMIA - DFW
Nonstop3h 23mSpirit Airlines
Deal found 9/14$86
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:05 amDFW - MIA
Nonstop2h 54mSpirit Airlines
Thu 10/27:54 pmMIA - DFW
Nonstop3h 23mSpirit Airlines
Deal found 9/15$87
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 9/287:24 pmDFW - MIA
Nonstop3h 03mFrontier
Mon 10/68:02 pmMIA - DFW
Nonstop3h 37mFrontier
Deal found 9/14$89
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:59 pmDFW - MIA
Nonstop2h 58mMultiple Airlines
Tue 9/307:54 pmMIA - DFW
Nonstop3h 23mMultiple Airlines
Deal found 9/15$90
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:59 pmDFW - MIA
Nonstop2h 58mMultiple Airlines
Wed 10/17:54 pmMIA - DFW
Nonstop3h 23mMultiple Airlines
Deal found 9/15$91
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:24 pmDFW - MIA
Nonstop3h 03mFrontier
Mon 10/68:02 pmMIA - DFW
Nonstop3h 37mFrontier
Deal found 9/14$93
This Frontier deal was found by Cheapflights users on 9/13. 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.
Mon 9/292:59 pmDFW - MIA
Nonstop2h 58mFrontier
Thu 10/166:43 pmMIA - DFW
Nonstop3h 30mFrontier
Deal found 9/13$94
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:24 pmDFW - MIA
Nonstop3h 03mFrontier
Mon 9/228:02 pmMIA - DFW
Nonstop3h 37mFrontier
Deal found 9/15$95

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas 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 September 16, 2025.
Use the filters below to find and compare flights from Dallas to Key Largo that are best for you.

Fly from

Dallas

Fly to

Key Largo

Route

Depart

Return

Price

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Sun 10/26

6:10 am-9:36 pm

1 stop14h 26m

Miami

Sun 11/2

7:38 pm-5:30 pm

1 stop22h 52m

$143

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Fri 10/17

6:49 am-7:43 pm

1 stop11h 54m

Miami

Sat 10/25

6:41 pm-9:00 pm

Nonstop3h 19m

$150

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Mon 10/6

1:53 pm-12:12 am

1 stop9h 19m

Miami

Mon 10/13

6:00 am-9:09 am

1 stop28h 09m

$151

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Mon 10/13

9:40 am-1:20 pm

Nonstop2h 40m

Miami

Thu 10/23

6:50 am-8:55 am

Nonstop3h 05m

$169

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Mon 10/6

1:30 pm-6:55 pm

1 stop4h 25m

Miami

Thu 10/9

6:50 am-8:55 am

Nonstop3h 05m

$200

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Tue 1/13

1:05 pm-9:30 pm

2 stops7h 25m

Miami

Wed 1/14

12:00 pm-2:30 pm

Nonstop3h 30m

$203

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Tue 10/14

2:10 pm-9:55 pm

2 stops6h 45m

Miami

Tue 10/21

4:35 pm-10:45 pm

1 stop7h 10m

$214

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Fri 10/10

7:55 am-4:56 pm

1 stop8h 01m

Miami

Tue 10/14

9:49 am-3:31 pm

2 stops30h 42m

$217

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Tue 3/10

1:51 pm-9:02 pm

1 stop6h 11m

Miami

Wed 3/11

7:35 pm-12:17 am

1 stop5h 42m

$217

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Sun 10/5

11:20 am-7:50 pm

1 stop7h 30m

Miami

Tue 10/7

6:55 am-1:40 pm

2 stops7h 45m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 40 results
1
2
3
4

Best time to book a flight from Dallas to Key Largo

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

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

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

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dallas 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 to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Dallas to Key Largo (average of $232). Flying from Dallas 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 DFW to KE9?

Find hourly flight availability from Dallas 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 September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dallas to Key Largo as you normally would.

What is the cheapest day to fly from Dallas to Key Largo?

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

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

Weekly flight availability from Dallas to Key Largo

Explore weekly flight availability from Dallas 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 September 16, 2025.

The most flights from A78 to KE9 are scheduled on a Monday (43 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (33 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 September 16, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Dallas 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
4,242 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

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.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

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.
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

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.
Spirit Airlines
6.3
Okay
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

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.
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

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 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 to Key Largo?

    There are many flights that can get you from Dallas to Key Largo in 2h 40m. Fly via Frontier, Spirit Airlines, or Southwest to get the fastest option. The distance from Dallas to Key Largo is about 1108 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $47 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Southwest, with prices starting from $49 and $80, respectively.

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

    Consider Spirit Airlines (83%), Japan Airlines (69%) or GOL (68%) when booking your flight. These represent the most reliable airlines when flying from Dallas to Key Largo.

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

    Looking for the cheapest flight from Dallas to Key Largo? While on average our users pay $808, our data indicates the cheapest price to be $47. The most popular route (Dallas/Fort Worth - Miami), is priced around $68.

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

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

  • How can I find direct flights from Dallas 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 to Key Largo.

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

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

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

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.

Alternative routes for Dallas to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Orlando flights
Dallas/Fort Worth to Miami flights
Dallas/Fort Worth to Fort Lauderdale flights
Hobby to Orlando flights
George Bush Intcntl to Orlando flights
Hobby to Miami flights
Love Field to Miami flights
Hobby to Fort Lauderdale flights
George Bush Intcntl to Miami flights
Austin to Miami flights
Austin to Orlando flights
Dallas/Fort Worth to Tampa flights
George Bush Intcntl to Fort Lauderdale flights
Love Field to Orlando flights
San Antonio to Orlando flights
Austin to Fort Lauderdale flights
Dallas/Fort Worth to Jacksonville flights
Love Field to Fort Lauderdale flights
Dallas/Fort Worth to West Palm Beach flights
Hobby to Tampa flights
Austin to Tampa flights
San Antonio to Miami flights
George Bush Intcntl to Tampa flights
Dallas/Fort Worth to Fort Myers flights
Love Field to Tampa flights
Dallas/Fort Worth to Pensacola flights
Hobby to Jacksonville flights
Dallas/Fort Worth to Key West flights
Dallas/Fort Worth to Panama City flights
Hobby to West Palm Beach flights
Dallas/Fort Worth to Sarasota flights
George Bush Intcntl to Jacksonville flights
George Bush Intcntl to West Palm Beach flights
Hobby to Panama City flights
San Antonio to Fort Lauderdale flights
Love Field to Jacksonville flights
Hobby to Pensacola flights
San Antonio to Tampa flights
Austin to Fort Myers flights
Dallas/Fort Worth to Valparaiso flights
George Bush Intcntl to Panama City flights
Austin to Gainesville flights
Austin to Jacksonville flights
Hobby to Fort Myers flights
George Bush Intcntl to Pensacola flights
Hobby to Key West flights
Corpus Christi to Orlando flights
Love Field to Pensacola flights
George Bush Intcntl to Fort Myers flights
Austin to Panama City flights

Top 6 airlines flying from Dallas to Key Largo

Discover the top 6 airlines that operate flights from Dallas 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$205FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$86Average$188FlexibilityNo cancel feeOn-time65%
DeltaCheapest$110Average$436FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$136Average$479FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$142Average$390FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$315Average$471FlexibilityNo 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.