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Key Largo

$51+ 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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — MIA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Dallas to Key Largo with Cheapflights

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

Cheap 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 December 12, 2025.

This Expedia deal was found by Cheapflights users on 12/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Wed 1/149:26 pmMIA - DFW
Nonstop3h 32mSpirit Airlines
Deal found 12/9$109
This Super.com deal was found by Cheapflights users on 12/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:54 pmDFW - MIA
1 stop6h 53mFrontier
Mon 2/28:36 pmMIA - DFW
Nonstop3h 48mFrontier
Deal found 12/11$121
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/117:14 pmDFW - MIA
Nonstop3h 04mMultiple Airlines
Sat 1/319:26 pmMIA - DFW
Nonstop3h 32mMultiple Airlines
Deal found 12/11$128
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
Thu 12/117:14 pmDFW - MIA
Nonstop3h 04mMultiple Airlines
Thu 12/1810:13 amMIA - DFW
Nonstop3h 27mMultiple Airlines
Deal found 12/10$131
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Mon 12/295:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Tue 1/68:00 amMIA - DFW
1 stop11h 47mSpirit Airlines
Deal found 12/9$136
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Sat 1/109:26 pmMIA - DFW
Nonstop3h 32mSpirit Airlines
Deal found 12/10$139
This WAYA deal was found by Cheapflights users on 12/9. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:30 amDFW - MIA
Nonstop2h 45mMultiple Airlines
Wed 1/145:45 pmMIA - DFW
1 stop6h 08mMultiple Airlines
Deal found 12/9$141
This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:14 pmDFW - MIA
Nonstop3h 04mFrontier
Mon 12/153:36 pmMIA - DFW
Nonstop3h 33mFrontier
Deal found 12/10$143
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:35 pmDFW - MIA
1 stop7h 46mSpirit Airlines
Sat 1/109:26 pmMIA - DFW
Nonstop3h 32mSpirit Airlines
Deal found 12/11$148
This Delta deal was found by Cheapflights users on 12/10. 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 12/166:05 amDAL - MIA
1 stop7h 40mDelta
Thu 1/81:21 pmMIA - DAL
1 stop5h 26mDelta
Deal found 12/10$302
This Delta deal was found by Cheapflights users on 12/10. 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.
Mon 12/156:37 pmDAL - MIA
1 stop5h 09mDelta
Thu 1/81:21 pmMIA - DAL
1 stop5h 26mDelta
Deal found 12/10$335
This Southwest deal was found by Cheapflights users on 12/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:00 pmDAL - MIA
1 stop6h 55mSouthwest
Wed 12/315:15 pmMIA - DAL
1 stop5h 15mSouthwest
Deal found 12/10$344

Find 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 December 12, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$98
(Kiwi.com)

One-way from

$51
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$277
Provider with most accurate pricing for Dallas-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dallas-Miami flights.
Search Deals
From Dallas to Key Largo
Search Deals
One-way flight from Dallas to Key Largo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($33 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 December 2025
Search Deals

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 December 12, 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 1/4

5:30 am-9:15 am

Nonstop2h 45m

Miami

Sat 1/17

9:26 pm-11:58 pm

Nonstop3h 32m

$130

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Thu 1/8

9:10 am-6:05 pm

1 stop7h 55m

Miami

Mon 1/12

5:20 am-3:24 pm

2 stops11h 04m

$230

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Sat 2/21

9:50 am-4:45 pm

1 stop5h 55m

Miami

Thu 2/26

7:05 am-9:25 am

Nonstop3h 20m

$234

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Tue 1/27

2:55 pm-6:35 pm

Nonstop2h 40m

Miami

Sat 1/31

6:45 am-2:25 pm

2 stops8h 40m

$239

DallasMiami

DFW - MIA

DFWMIA

Dallas/Fort Worth

Wed 12/24

7:43 pm-5:00 am

1 stop8h 17m

Miami

Tue 12/30

5:45 am-11:35 pm

1 stop18h 50m

$240

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Fri 1/9

6:38 pm-12:51 am

1 stop5h 13m

Miami

Thu 1/15

5:50 am-11:04 am

1 stop6h 14m

$258

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Sun 1/25

6:30 pm-10:10 pm

Nonstop2h 40m

Miami

Thu 1/29

6:55 am-1:00 pm

2 stops7h 05m

$284

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Wed 3/18

1:10 pm-9:40 pm

1 stop7h 30m

Miami

Wed 3/25

3:35 pm-5:50 pm

Nonstop3h 15m

$293

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Wed 1/7

6:30 am-3:30 pm

2 stops8h 00m

Miami

Sat 1/10

6:30 am-2:30 pm

1 stop9h 00m

$294

DallasMiami

DAL - MIA

DALMIA

Dallas Love Field

Sun 2/1

6:35 am-1:45 pm

1 stop6h 10m

Miami

Thu 2/5

11:55 am-8:10 pm

2 stops9h 15m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 44 results
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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 December 5, 2025.

Booking 66 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 $56). Flying from Dallas 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 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 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Dallas to Key Largo by exploring options for tickets in the afternoon.

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 Wednesday mornings 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.

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 December 12, 2025.

The most flights from A78 to KE9 are scheduled on a Thursday (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 December 12, 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
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

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.
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

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.
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

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.
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

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.
Spirit Airlines
6.3
Okay
8,179 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

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.
Frontier
5.8
Fair
3,084 reviews
Southwest
7.9
Good
4,253 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

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 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 45m. Fly via Spirit Airlines, Frontier, or Southwest to get the fastest option. The distance from Dallas to Key Largo is about 1119 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?

    $37 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 American Airlines, with prices starting from $44 and $68, respectively.

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

    Consider Spirit Airlines (96%), GOL (88%) or Qatar Airways (81%) 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 $897, our data indicates the cheapest price to be $43. The most popular route (Dallas/Fort Worth - Miami), is priced around $66.

  • 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 $56). Flying from Dallas 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

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$173FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$95Average$175FlexibilityNo cancel feeOn-time65%
DeltaCheapest$110Average$392FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$136Average$476FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$145Average$381FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$276Average$448FlexibilityNo cancel feeOn-time69%

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