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 $34. Users have also found prices from $81 and $98 on Delta and JetBlue, respectively.

Weekly flight availability from Key Largo to Dallas

The most flights from KE9 to A78 are scheduled on a Wednesday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (44 on average).

In terms of precipitation, rainfall in Dallas ranges from 1.9 - 4.9 inches per month. May is typically the wettest month, when rainfall can reach 4.9 in. August is typically the driest time to visit Dallas when rainfall is around 1.9 in.

If weather is an important factor for your trip to Dallas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

What are the cheapest flights from Key Largo to Dallas?

Looking at all options, your cheapest flight can be booked for $129. While the most popular route (Miami - Dallas/Fort Worth) can be booked for $128 on average, our data indicates $1,313 when flying from Key Largo to Dallas.

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: Atlas Air (100%), Japan Airlines (90%), GOL (79%).

What are the most popular airlines that fly from Key Largo to Dallas?

When booking a flight from Key Largo to Dallas, you may want to consider flying on Frontier, American Airlines or Southwest as they are the most popular for this route.

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.

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Cheapflights Tip: The best prices from Key Largo to Dallas are usually found in February or April, booked 81 days in advance, depart on a Friday or Thursday and return on a Friday

Find flight deals from Key Largo to Dallas

Popular in	June
Cheapest in	February
Average price	$229

Highest demand for flights based on searches. 23% potential increase in price ($81 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Everything you need to know about your flight from Key Largo to Dallas

Prices

Airlines

What is the cheapest time of day to fly from KE9 to DFW?

Unlike in the evening, when flights are generally more expensive, you can save up to 15% on flights from Key Largo to Dallas by exploring options for tickets at noon.

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

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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dallas

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

Southwest

7.9

Good

4,227 reviews

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

4,227 reviews

Southwest

7.9

Good

4,227 reviews

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

7.8

Good

8,654 reviews

Southwest

7.9

Good

4,227 reviews

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.

JetBlue

7.1

Good

3,048 reviews

Southwest

7.9

Good

4,227 reviews

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

7.0

Good

12,153 reviews

Southwest

7.9

Good

4,227 reviews

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

5.6

Fair

2,551 reviews

Southwest

7.9

Good

4,227 reviews

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

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 $34. Users have also found prices from $81 and $98 on Delta and JetBlue, 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: Atlas Air (100%), Japan Airlines (90%), GOL (79%).
What are the cheapest flights from Key Largo to Dallas?
Looking at all options, your cheapest flight can be booked for $129. While the most popular route (Miami - Dallas/Fort Worth) can be booked for $128 on average, our data indicates $1,313 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.

See more FAQs

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Top 6 airlines flying from Key Largo to Dallas

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$58	Average$190	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$118	Average$461	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$162	Average$392	FlexibilityNo cancel fee	On-time63%
JetBlue	Cheapest$179	Average$324	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$180	Average$500	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$246	Average$447	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Key Largo to Dallas with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Key Largo to Dallas

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from KE9 to DFW?

Unlike in the evening, when flights are generally more expensive, you can save up to 15% on flights from Key Largo to Dallas by exploring options for tickets at noon.

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

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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Dallas

The most flights from KE9 to A78 are scheduled on a Wednesday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (44 on average).

Reviews of airlines servicing Dallas

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

Related info for your journey

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

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

What are the cheapest flights from Key Largo to Dallas?

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

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

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

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 Key Largo to Dallas

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Dallas by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Key Largo to Dallas by cabin class

Find flights from Key Largo to Dallas, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Key Largo and Dallas flights

Browse other Key Largo and Dallas flight options. Last updated on October 10, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 6 airlines flying from Key Largo to Dallas

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Cheap flights from Key Largo, FL to Dallas

Find cheap flights from Key Largo to Dallas with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Key Largo to Dallas

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from KE9 to DFW?

Unlike in the evening, when flights are generally more expensive, you can save up to 15% on flights from Key Largo to Dallas by exploring options for tickets at noon.

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

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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Dallas

The most flights from KE9 to A78 are scheduled on a Wednesday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (44 on average).

Reviews of airlines servicing Dallas

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

Related info for your journey

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

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

What are the cheapest flights from Key Largo to Dallas?

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

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

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

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 Key Largo to Dallas

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Dallas by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Key Largo to Dallas by cabin class

Find flights from Key Largo to Dallas, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Key Largo and Dallas flights

Browse other Key Largo and Dallas flight options. Last updated on October 10, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 6 airlines flying from Key Largo to Dallas

100% Free

Book with Flexibility

Travel Smart