HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key Largo

$70+ Cheap flights from Reagan-National (DCA) 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — MIA
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National 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.

The best prices from Washington, D.C. Reagan-National to Key Largo are usually found in September or January, booked 86 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Reagan-National to Key Largo

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Key Largo (KE9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Round-trip from

$148
(Frontier)

One-way from

$74
(Frontier)

Popular in

December

Cheapest in

September

Average price

$347
From Washington, D.C. Reagan-National to Key Largo
Search Deals
One-way flight from Washington, D.C. Reagan-National to Key Largo
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Reagan-National to Key Largo

Cheapest flights from Reagan-National to Key Largo
Explore the most affordable flight options available from Reagan-National to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:24 pmDCA - MIA
Nonstop2h 59mAmerican Airlines
Wed 1/811:59 amMIA - DCA
Nonstop2h 51mAmerican Airlines
Deal found 12/17$187
This Delta deal was found by Cheapflights users on 12/18. 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 12/312:50 pmDCA - MIA
Nonstop2h 49mDelta
Tue 1/710:20 amMIA - DCA
Nonstop2h 39mDelta
Deal found 12/18$233
This Frontier deal was found by Cheapflights users on 12/17. 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.
Tue 12/311:01 pmDCA - MIA
1 stop15h 59mFrontier
Wed 1/88:00 amMIA - DCA
1 stop9h 02mFrontier
Deal found 12/17$258
This Southwest deal was found by Cheapflights users on 12/17. 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 12/316:05 amDCA - MIA
1 stop7h 20mSouthwest
Wed 1/88:25 amMIA - DCA
2 stops12h 10mSouthwest
Deal found 12/17$371
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1811:05 amDCA - MIA
1 stop8h 03mUnited Airlines
Wed 1/86:15 amMIA - DCA
1 stop6h 07mUnited Airlines
Deal found 12/17$412
This eDestinos deal was found by Cheapflights users on 12/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:00 pmDCA - MIA
2 stops29h 59mMultiple Airlines
Sun 1/510:20 pmMIA - DCA
3 stops37h 41mMultiple Airlines
Deal found 12/17$560

Find flights from Reagan-National to Key Largo within your budget

Customize your flight search to find flights from Reagan-National 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 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 1/18

1:01 pm-1:36 am

1 stop12h 35m

Miami

Tue 1/21

8:00 am-9:59 pm

1 stop13h 59m

$148

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 1/7

6:31 pm-9:24 pm

Nonstop2h 53m

Miami

Wed 1/15

11:59 am-2:50 pm

Nonstop2h 51m

$187

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 1/7

2:30 pm-5:24 pm

Nonstop2h 54m

Miami

Thu 1/16

10:20 am-12:59 pm

Nonstop2h 39m

$193

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 1/7

1:05 pm-7:18 pm

1 stop6h 13m

Miami

Tue 1/14

6:15 am-12:22 pm

1 stop6h 07m

$212

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sun 1/19

10:45 am-7:35 pm

1 stop8h 50m

Miami

Wed 1/22

12:25 pm-6:59 pm

1 stop6h 34m

$230

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 1/14

6:10 am-1:50 pm

1 stop7h 40m

Miami

Tue 1/21

8:25 am-8:35 pm

2 stops12h 10m

$283

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 1/14

1:01 pm-11:23 pm

1 stop10h 22m

$70

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Wed 1/1

5:00 am-7:54 am

Nonstop2h 54m

$89

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 2/18

1:55 pm-4:51 pm

Nonstop2h 56m

$95

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Mon 1/20

9:45 am-7:35 pm

1 stop9h 50m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 14 results
1
2

Best time to book a flight from Reagan-National to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Reagan-National 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.

Travel insights for flights from Reagan-National to Key Largo

Get recent, data-driven insights about flights from Reagan-National to Key Largo including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Key Largo. Price data was last updated on December 13, 2024.

The best time to book flights from Washington, D.C. Reagan-National Airport to Key Largo is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Key Largo?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Key Largo (average of $218). Flying from Washington, D.C. Reagan-National Airport to Key Largo in March is currently the most expensive (average of $286). 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 DCA to KE9?

Find hourly flight availability from Reagan-National 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 19, 2024.

When flying from Washington, D.C. Reagan-National Airport to Key Largo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Key Largo?

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

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Key Largo flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

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 19, 2024.
See what other customers who have flown with American Airlines, Frontier and Delta from Washington, D.C. to Key Largo have to say. 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
8.1
Very good
4,836 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,836 reviews
Southwest
8.1
Very good
4,836 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,600 reviews
Southwest
8.1
Very good
4,836 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,274 reviews
Southwest
8.1
Very good
4,836 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,048 reviews
Southwest
8.1
Very good
4,836 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,836 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Key Largo one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $74. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Washington, D.C. Reagan-National Airport to Key Largo for a low price.

  • What are the most reliable airlines from Washington, D.C. Reagan-National Airport to Key Largo?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Reagan-National Airport to Key Largo consider choosing LATAM Airlines (97%), Delta (93%) or Qatar Airways (92%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Washington, D.C. Reagan-National Airport to Key Largo?

    Looking at all options, your cheapest flight can be booked for $94. While the most popular route (Washington, D.C. Reagan-National - Miami) can be booked for $154 on average our data indicates $885 when flying from Washington, D.C. Reagan-National Airport to Key Largo.

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

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

  • How can I find direct flights from Reagan-National to Key Largo?

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

  • Can I find deals for business class flights from Reagan-National to Key Largo?

    Yes. Cheapflights offers flight deals from Reagan-National 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 Washington, D.C. Reagan-National Airport to Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Key Largo (average of $218). Flying from Washington, D.C. Reagan-National Airport to Key Largo in March is currently the most expensive (average of $286). 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 Reagan-National to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Fort Lauderdale flights
Reagan-National to Miami flights
Dulles Intl to Orlando flights
Dulles Intl to Miami flights
Baltimore to Orlando flights
Reagan-National to Orlando flights
Dulles Intl to Fort Lauderdale flights
Baltimore to Miami flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to Tampa flights
Reagan-National to Tampa flights
Baltimore to Tampa flights
Dulles Intl to West Palm Beach flights
Reagan-National to West Palm Beach flights
Dulles Intl to Fort Myers flights
Dulles Intl to Key West flights
Baltimore to Fort Myers flights
Baltimore to West Palm Beach flights
Reagan-National to Fort Myers flights
Dulles Intl to Jacksonville flights
Reagan-National to Sarasota flights
Reagan-National to Key West flights
Baltimore to Key West flights
Baltimore to Jacksonville flights
Baltimore to Sarasota flights
Reagan-National to Jacksonville flights
Dulles Intl to Pensacola flights
Baltimore to Pensacola flights
Reagan-National to Pensacola flights
Reagan-National to Daytona Beach flights
Dulles Intl to Daytona Beach flights
Dulles Intl to Panama City flights
Baltimore to Panama City flights
Baltimore to Daytona Beach flights
Dulles Intl to Sarasota flights
Dulles Intl to Valparaiso flights
Reagan-National to Panama City flights
Reagan-National to Valparaiso flights
Reagan-National to Melbourne flights
Baltimore to Valparaiso flights
Dulles Intl to Orlando Sanford Intl flights
Dulles Intl to Melbourne flights
Reagan-National to Tallahassee flights
Baltimore to Melbourne flights
Dulles Intl to Tallahassee flights
Baltimore to Tallahassee flights
Dulles Intl to Gainesville flights
Reagan-National to Gainesville flights
Baltimore to Gainesville flights
Dulles Intl to Valdosta flights

Top 7 airlines flying from Reagan-National to Key Largo

Discover the top 7 airlines that operate flights from Reagan-National 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 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$149FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$62Average$158FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$89Average$309FlexibilityNo cancel feeOn-time62%
DeltaCheapest$127Average$272FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$140Average$332FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$158Average$354FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$178Average$430FlexibilityNo 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.