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$51+ Cheap flights from Key Largo, FL to Dallas

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — DFW
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Dallas are usually found in September or November, booked 62 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Key Largo to Dallas

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

This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:00 amMIA - DFW
1 stop11h 47mSpirit Airlines
Tue 1/65:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Deal found 12/14$116
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:00 amMIA - DFW
1 stop11h 47mSpirit Airlines
Sat 1/35:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Deal found 12/13$118
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:05 pmMIA - DFW
1 stop12h 17mFrontier
Mon 1/57:34 pmDFW - MIA
Nonstop3h 04mFrontier
Deal found 12/13$119
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:00 amMIA - DFW
1 stop11h 47mSpirit Airlines
Wed 1/75:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Deal found 12/15$122
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.
Wed 12/315:30 amMIA - DFW
1 stop11h 14mMultiple Airlines
Sat 1/35:30 amDFW - MIA
Nonstop2h 45mMultiple Airlines
Deal found 12/13$126
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:13 amMIA - DFW
Nonstop3h 27mMultiple Airlines
Mon 1/57:34 pmDFW - MIA
Nonstop3h 04mMultiple Airlines
Deal found 12/14$127
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.
Tue 12/309:59 pmMIA - DFW
1 stop21h 48mSpirit Airlines
Sat 1/35:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Deal found 12/13$128
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:05 pmMIA - DFW
1 stop12h 17mMultiple Airlines
Tue 1/65:30 amDFW - MIA
Nonstop2h 45mMultiple Airlines
Deal found 12/15$129
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.
Wed 12/2410:13 amMIA - DFW
Nonstop3h 27mSpirit Airlines
Wed 1/75:30 amDFW - MIA
Nonstop2h 45mSpirit Airlines
Deal found 12/14$130
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:30 amMIA - DFW
1 stop12h 24mMultiple Airlines
Tue 1/65:30 amDFW - MIA
Nonstop2h 45mMultiple Airlines
Deal found 12/14$135
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.
Tue 12/305:45 amMIA - DFW
1 stop18h 50mMultiple Airlines
Sat 1/35:30 amDFW - MIA
Nonstop2h 45mMultiple Airlines
Deal found 12/13$140
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:15 pmMIA - DAL
1 stop5h 15mSouthwest
Tue 2/32:55 pmDAL - MIA
Nonstop2h 40mSouthwest
Deal found 12/15$241

Find flight deals from Key Largo to Dallas

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

Round-trip from

$88
(Kiwi.com)

One-way from

$51
(Super.com)

Popular in

January

Cheapest in

September

Average price

$236
From Key Largo to Dallas
Search Deals
One-way flight from Key Largo to Dallas
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($17 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 December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Dallas 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 Key Largo to Dallas that are best for you.

Fly from

Key Largo

Fly to

Dallas

Route

Depart

Return

Price

MiamiDallas

MIA - DFW

MIADFW

Miami

Sun 1/18

5:15 am-10:55 pm

1 stop18h 40m

Dallas/Fort Worth

Sun 3/8

8:13 pm-12:06 am

Nonstop2h 53m

$134

MiamiDallas

MIA - DFW

MIADFW

Miami

Wed 1/28

7:00 am-9:23 pm

2 stops15h 23m

Dallas/Fort Worth

Wed 2/4

2:41 pm-11:56 am

3 stops20h 15m

$186

MiamiDallas

MIA - DFW

MIADFW

Miami

Fri 1/16

5:50 am-10:46 am

1 stop5h 56m

Dallas/Fort Worth

Sun 1/18

6:17 pm-12:51 am

1 stop5h 34m

$217

MiamiDallas

MIA - DAL

MIADAL

Miami

Tue 1/27

1:21 pm-5:47 pm

1 stop5h 26m

Dallas Love Field

Mon 2/2

3:57 pm-10:48 pm

1 stop5h 51m

$217

MiamiDallas

MIA - DAL

MIADAL

Miami

Fri 1/30

5:50 am-11:04 am

1 stop6h 14m

Dallas Love Field

Sat 1/31

6:38 pm-12:51 am

1 stop5h 13m

$217

MiamiDallas

MIA - DAL

MIADAL

Miami

Thu 1/29

10:33 am-3:12 pm

1 stop5h 39m

Dallas Love Field

Sat 1/31

6:38 pm-12:51 am

1 stop5h 13m

$217

MiamiDallas

MIA - DAL

MIADAL

Miami

Tue 1/27

5:30 pm-10:29 pm

1 stop5h 59m

Dallas Love Field

Sat 1/31

6:38 pm-12:51 am

1 stop5h 13m

$217

MiamiDallas

MIA - DAL

MIADAL

Miami

Thu 1/8

4:32 pm-10:29 pm

1 stop6h 57m

Dallas Love Field

Sun 1/11

6:38 pm-12:51 am

1 stop5h 13m

$218

MiamiDallas

MIA - DAL

MIADAL

Miami

Sat 1/10

5:50 am-10:30 am

1 stop5h 40m

Dallas Love Field

Sun 1/11

6:38 pm-12:51 am

1 stop5h 13m

$219

MiamiDallas

MIA - DAL

MIADAL

Miami

Thu 1/22

12:00 pm-2:30 pm

Nonstop3h 30m

Dallas Love Field

Sun 1/25

6:35 am-1:45 pm

1 stop6h 10m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 39 results
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Best time to book a flight from Key Largo to Dallas

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

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

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

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Dallas. 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 Key Largo to Dallas?

Currently, December is the cheapest month in which you can book a flight from Key Largo to Dallas (average of $19). Flying from Key Largo to Dallas in June is currently the most expensive (average of $111). 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 KE9 to DFW?

Find hourly flight availability from Key Largo to Dallas. 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 afternoon, when flights are generally more expensive, you can save up to 27% on flights from Key Largo to Dallas by exploring options for tickets in the evening.

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

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

Travelers seeking maximum savings on their Key Largo to Dallas flight should consider departing on Wednesday 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.

Reviews of airlines servicing Dallas

Get insights into the airlines that provide service to Dallas. 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 Dallas. Reviews last updated December 15, 2025.
Read through reviews of airlines operating flights from Key Largo to Dallas, such as Southwest, American Airlines, and Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,249 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
7.9
Good
4,249 reviews
Southwest
7.9
Good
4,249 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,051 reviews
Southwest
7.9
Good
4,249 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,188 reviews
Southwest
7.9
Good
4,249 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,079 reviews
Southwest
7.9
Good
4,249 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Dallas. 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 Key Largo to Dallas?

    A quick flight from Key Largo to Dallas can take about 5h 56m. Frontier provides one of the quickest options available for as low as $217. There are 1119 mi between Key Largo and Dallas. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $40. Users have also found prices from $44 and $89 on Spirit Airlines and Southwest, respectively.

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

    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 Key Largo to Dallas on time: Royal Air Maroc (82%), Japan Airlines (80%), Finnair (77%).

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

    Looking at all options, your cheapest flight can be booked for $70. While the most popular route (Miami - Dallas/Fort Worth) can be booked for $66 on average, our data indicates $830 when flying from Key Largo to Dallas.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Key Largo to Dallas (average of $19). Flying from Key Largo to Dallas in June is currently the most expensive (average of $111). 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 4 airlines flying from Key Largo to Dallas

Discover the top 4 airlines that operate flights from Key Largo to Dallas. 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
Spirit AirlinesCheapest$47Average$172FlexibilityNo cancel feeOn-time65%
FrontierCheapest$52Average$144FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$141Average$359FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$141Average$449FlexibilityNo cancel feeOn-time71%

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