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$43+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — DFW
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 55 days in advance, depart on a Friday or Thursday and return on a Thursday

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 January 29, 2026.

This Frontier deal was found by Cheapflights users on 1/28. 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 2/129:10 pm
MIA
-
DFW
Nonstop3h 47m
Frontier
Sun 2/226:30 am
DFW
-
MIA
Nonstop2h 53m
Frontier
Deal found 1/28$77
This Mytrip deal was found by Cheapflights users on 1/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/69:26 pm
MIA
-
DFW
Nonstop3h 32m
Multiple Airlines
Sat 3/216:53 pm
DFW
-
MIA
Nonstop2h 53m
Multiple Airlines
Deal found 1/28$78
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/119:26 pm
MIA
-
DFW
Nonstop3h 32m
Multiple Airlines
Thu 2/194:06 pm
DFW
-
MIA
Nonstop2h 54m
Multiple Airlines
Deal found 1/27$79
This Frontier deal was found by Cheapflights users on 1/28. 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 2/98:36 pm
MIA
-
DFW
Nonstop3h 48m
Frontier
Thu 2/194:06 pm
DFW
-
MIA
Nonstop2h 54m
Frontier
Deal found 1/28$80
This Expedia deal was found by Cheapflights users on 1/28. 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 2/249:18 pm
MIA
-
DFW
Nonstop3h 32m
Spirit Airlines
Sat 2/287:50 am
DFW
-
MIA
Nonstop2h 50m
Spirit Airlines
Deal found 1/28$81
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 4/218:35 pm
MIA
-
DFW
Nonstop3h 34m
Multiple Airlines
Mon 4/279:34 pm
DFW
-
MIA
Nonstop2h 56m
Multiple Airlines
Deal found 1/27$82
This Frontier deal was found by Cheapflights users on 1/27. 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 2/98:36 pm
MIA
-
DFW
Nonstop3h 48m
Frontier
Mon 2/164:06 pm
DFW
-
MIA
Nonstop2h 54m
Frontier
Deal found 1/27$83
This Frontier deal was found by Cheapflights users on 1/27. 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 3/124:15 pm
MIA
-
DFW
Nonstop3h 38m
Frontier
Sat 3/217:53 pm
DFW
-
MIA
Nonstop2h 56m
Frontier
Deal found 1/27$84
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Fri 1/308:36 pm
MIA
-
DFW
Nonstop3h 48m
Multiple Airlines
Sun 2/16:46 am
DFW
-
MIA
Nonstop2h 45m
Multiple Airlines
Deal found 1/27$86
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 2/59:26 pm
MIA
-
DFW
Nonstop3h 32m
Spirit Airlines
Sun 2/86:46 am
DFW
-
MIA
Nonstop2h 45m
Spirit Airlines
Deal found 1/28$87
This Expedia deal was found by Cheapflights users on 1/27. 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.
Fri 1/308:36 pm
MIA
-
DFW
Nonstop3h 48m
Multiple Airlines
Sun 2/86:46 am
DFW
-
MIA
Nonstop2h 45m
Multiple Airlines
Deal found 1/27$88
This Frontier deal was found by Cheapflights users on 1/27. 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 2/199:10 pm
MIA
-
DFW
Nonstop3h 47m
Frontier
Mon 3/163:04 pm
DFW
-
MIA
Nonstop2h 54m
Frontier
Deal found 1/27$89

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 January 29, 2026.

Round-trip from

$77
(Frontier)

One-way from

$43
(Super.com)

Popular in

December

Cheapest in

September

Average price

$314
From Key Largo to Dallas
Search Deals
One-way flight from Key Largo to Dallas
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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

Tue 2/24

9:18 pm-11:50 pm

Nonstop3h 32m

Dallas/Fort Worth

Sat 2/28

10:44 am-12:42 am

1 stop12h 58m

$101

MiamiDallas

MIA - DFW

MIADFW

Miami

Fri 2/20

6:40 am-9:16 am

Nonstop3h 36m

Dallas/Fort Worth

Mon 2/23

8:40 pm-12:16 pm

1 stop14h 36m

$104

MiamiDallas

MIA - DFW

MIADFW

Miami

Fri 2/27

9:18 pm-11:50 pm

Nonstop3h 32m

Dallas/Fort Worth

Sat 2/28

7:50 am-11:40 am

Nonstop2h 50m

$111

MiamiDallas

MIA - DFW

MIADFW

Miami

Thu 2/12

7:05 am-9:54 pm

2 stops15h 49m

Dallas/Fort Worth

Sun 2/15

11:06 am-2:56 pm

Nonstop2h 50m

$113

MiamiDallas

MIA - DFW

MIADFW

Miami

Thu 2/12

7:14 pm-7:02 am

1 stop12h 48m

Dallas/Fort Worth

Sun 2/15

6:30 am-10:23 am

Nonstop2h 53m

$114

MiamiDallas

MIA - DFW

MIADFW

Miami

Fri 5/1

5:45 pm-8:34 pm

Nonstop3h 49m

Dallas/Fort Worth

Mon 5/4

7:19 am-4:45 pm

1 stop8h 26m

$137

MiamiDallas

MIA - DFW

MIADFW

Miami

Fri 5/1

7:35 am-7:37 am

1 stop25h 02m

Dallas/Fort Worth

Mon 5/4

7:00 am-10:50 am

Nonstop2h 50m

$138

MiamiDallas

MIA - DFW

MIADFW

Miami

Tue 2/24

7:05 am-11:17 pm

2 stops17h 12m

Dallas/Fort Worth

Thu 2/26

8:40 pm-12:16 pm

1 stop14h 36m

$145

MiamiDallas

MIA - DFW

MIADFW

Miami

Fri 3/20

7:04 pm-7:29 am

1 stop13h 25m

Dallas/Fort Worth

Tue 3/24

6:13 pm-10:34 am

1 stop15h 21m

$170

MiamiDallas

MIA - DFW

MIADFW

Miami

Thu 2/26

8:00 am-2:56 pm

1 stop7h 56m

Dallas/Fort Worth

Thu 3/5

5:54 pm-12:42 am

1 stop5h 48m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 45 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 January 23, 2026.

Booking 55 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 $117). 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 January 29, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 39% 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 May 5, 2025.

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

Weekly flight availability from Key Largo to Dallas

Explore weekly flight availability from Key Largo to Dallas. 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 January 29, 2026.

The most flights from KE9 to A78 are scheduled on a Thursday (48 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (37 on average).

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 January 29, 2026.
Read through reviews of airlines operating flights from Key Largo to Dallas, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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
8,394 reviews
Southwest
8.0
Very good
4,267 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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 3h 20m. Spirit Airlines provides one of the quickest options available for as low as $219. There are 1108 mi between Key Largo and Dallas. Generally, flights for this route are nonstop.

  • 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 $39. Users have also found prices from $43 and $81 on Spirit Airlines and Delta, 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: Japan Airlines (82%), Qatar Airways (81%), American Airlines (79%).

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

    Looking at all options, your cheapest flight can be booked for $51. While the most popular route (Miami - Dallas/Fort Worth) can be booked for $60 on average, our data indicates $1,191 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 $117). 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 7 airlines flying from Key Largo to Dallas

Discover the top 7 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$47Average$151FlexibilityNo cancel feeOn-time65%
FrontierCheapest$47Average$131FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$141Average$359FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$141Average$490FlexibilityNo cancel feeOn-time71%
DeltaCheapest$182Average$458FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$187Average$333FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$237Average$363FlexibilityNo cancel feeOn-time69%

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