$50+ Cheap flights from Washington, D.C. (WAS) 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Washington, D.C. 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.Cheapflights Tip: The best prices from Washington, D.C. to Key Largo are usually found in February or January, booked 31 days in advance, depart on a Monday or Sunday and return on a Friday
Cheap flight deals from Washington, D.C. to Key Largo
Keep the following information in mind while searching for Washington, D.C. to Key Largo flight deals. Data was last updated June 12, 2025.
Round-trip from | $95 (Kiwi.com) |
|---|---|
One-way from | $50 (CheapOair) |
Popular in | December |
Cheapest in | February |
Average price | $207 |
Find flight deals from Washington, D.C. to Key Largo
Cheapest flights from Washington, D.C. to Key LargoExplore the most affordable flight options available from Washington, D.C. to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Washington, D.C. to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/10. 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.
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/10. 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.
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. 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 June 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Key Largo that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 6/29
4:50 pm-7:49 pm
Nonstop2h 59m
Miami
Thu 7/3
12:20 pm-3:13 pm
Nonstop2h 53m
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 8/31
11:12 am-1:58 pm
Nonstop2h 46m
Miami
Fri 9/5
3:47 pm-6:26 pm
Nonstop2h 39m
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Sun 7/13
8:45 am-11:41 am
Nonstop2h 56m
Miami
Thu 7/17
12:46 pm-3:25 pm
Nonstop2h 39m
Washington, D.C.Miami
IAD - MIA
IADMIA
Washington, D.C. Dulles Intl
Mon 7/7
9:58 pm-12:45 am
Nonstop2h 47m
Miami
Thu 7/10
3:50 pm-6:28 pm
Nonstop2h 38m
Washington, D.C.Miami
DCA - MIA
DCAMIA
Washington, D.C. Reagan-National
Tue 7/1
2:55 pm-5:35 pm
Nonstop2h 40m
Miami
Wed 7/2
11:20 am-2:00 pm
Nonstop2h 40m
Washington, D.C.Miami
IAD - MIA
IADMIA
Washington, D.C. Dulles Intl
Tue 7/1
9:00 am-11:49 am
Nonstop2h 49m
Miami
Tue 7/8
1:30 pm-4:10 pm
Nonstop2h 40m
Washington, D.C.Miami
DCA - MIA
DCAMIA
Washington, D.C. Reagan-National
Sat 8/16
8:07 pm-10:59 pm
Nonstop2h 52m
Miami
Tue 8/19
9:54 am-12:33 pm
Nonstop2h 39m
Washington, D.C.Miami
DCA - MIA
DCAMIA
Washington, D.C. Reagan-National
Tue 7/1
3:55 pm-10:20 pm
1 stop6h 25m
Miami
Sat 7/5
5:10 am-12:05 pm
1 stop6h 55m
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Wed 6/25
6:03 am-8:44 am
Nonstop2h 41m
Miami
Wed 9/17
9:20 pm-11:59 pm
Nonstop2h 39m
BaltimoreMiami
BWI - MIA
BWIMIA
Baltimore/Washington
Mon 7/7
7:52 pm-12:55 am
1 stop5h 03m
Miami
Wed 7/9
5:58 pm-12:54 am
1 stop6h 56m
Best time to book a flight from Washington, D.C. to Key Largo
Have a flexible travel schedule? Discover the best time to fly to Key Largo from Washington, D.C. with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. to Key Largo
How far ahead should I book a flight from Washington, D.C. to Key Largo?
Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Key Largo. Price data was last updated on June 9, 2025.
The best time to book flights from Washington, D.C. to Key Largo is 30 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. to Key Largo?
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Key Largo (average of $228). Flying from Washington, D.C. to Key Largo in March is currently the most expensive (average of $289). 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 WAS to KE9?
Find hourly flight availability from Washington, D.C. 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 June 12, 2025.
When flying from Washington, D.C. 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. to Key Largo?
Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Key Largo. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Washington, D.C. to Key Largo flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Washington, D.C. to Key Largo
Explore weekly flight availability from Washington, D.C. 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 June 12, 2025.
The most flights from WAS to KE9 are scheduled on a Wednesday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).
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 June 12, 2025.
To help decide which airline to fly from Washington, D.C. to Key Largo, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
John,May 2025
PVD - BNA
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
John,May 2025
PVD - BNA
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
John,May 2025
PVD - BNA
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
John,May 2025
PVD - BNA
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
John,May 2025
PVD - BNA
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
John,May 2025
PVD - BNA
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 Washington, D.C. to Key Largo
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Washington, D.C. to Key Largo
Discover the top 8 airlines that operate flights from Washington, D.C. 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 June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$168 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$59 | Average$165 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$85 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$117 | Average$340 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$126 | Average$256 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$147 | Average$379 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$155 | Average$397 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$161 | Average$380 | FlexibilityNo cancel fee | On-time69% |