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Washington, D.C.

$53+ Cheap flights from Key Largo, FL to Washington, D.C. (WAS)

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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — WAS
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
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The best prices from Key Largo to Washington, D.C. are usually found in February or August, booked 55 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Key Largo to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Washington, D.C. (WAS). 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 enero 21, 2025.

Round-trip from

$78
(Frontier)

One-way from

$53
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$166
From Key Largo to Washington, D.C. (WAS)
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One-way flight from Key Largo to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 11% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Key Largo to Washington, D.C.

Cheapest flights from Key Largo to Washington, D.C.
Explore the most affordable flight options available from Key Largo to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.

This Frontier deal was found by Cheapflights users on 1/21. 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.
sáb. 2/151:51 pmMIA - BWI
Nonstop2h 45mFrontier
dom. 2/237:52 pmBWI - MIA
Nonstop2h 56mFrontier
Deal found 1/21$78
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/209:16 pmMIA - BWI
Nonstop2h 40mSpirit Airlines
jue. 2/275:36 pmBWI - MIA
Nonstop2h 45mSpirit Airlines
Deal found 1/21$79
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
vie. 2/217:50 amMIA - BWI
Nonstop2h 44mMultiple Airlines
jue. 2/275:36 pmBWI - MIA
Nonstop2h 45mMultiple Airlines
Deal found 1/21$80
This Frontier deal was found by Cheapflights users on 1/20. 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.
mar. 3/49:33 amMIA - IAD
1 stop9h 48mFrontier
sáb. 3/85:41 pmIAD - MIA
1 stop6h 44mFrontier
Deal found 1/20$102
This Frontier deal was found by Cheapflights users on 1/21. 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.
sáb. 2/16:00 amMIA - DCA
1 stop15h 59mFrontier
sáb. 2/81:01 pmDCA - MIA
1 stop12h 35mFrontier
Deal found 1/21$113
This American Airlines deal was found by Cheapflights users on 1/20. 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.
jue. 2/64:21 pmMIA - DCA
Nonstop2h 38mAmerican Airlines
dom. 2/96:01 amDCA - MIA
Nonstop2h 59mAmerican Airlines
Deal found 1/20$136
This Delta deal was found by Cheapflights users on 1/21. 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.
jue. 2/610:20 amMIA - DCA
Nonstop2h 39mDelta
dom. 2/91:55 pmDCA - MIA
Nonstop2h 56mDelta
Deal found 1/21$137
This United Airlines deal was found by Cheapflights users on 1/21. 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.
jue. 2/208:45 amMIA - IAD
Nonstop2h 43mUnited Airlines
dom. 2/235:30 pmIAD - MIA
Nonstop2h 56mUnited Airlines
Deal found 1/21$137
This Southwest deal was found by Cheapflights users on 1/20. 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.
mié. 2/198:45 amMIA - DCA
1 stop11h 30mSouthwest
mié. 2/266:00 amDCA - MIA
1 stop9h 05mSouthwest
Deal found 1/20$157
This JetBlue deal was found by Cheapflights users on 1/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/276:00 amMIA - DCA
1 stop7h 59mJetBlue
lun. 3/312:29 pmDCA - MIA
1 stop10h 05mJetBlue
Deal found 1/20$199
This Delta deal was found by Cheapflights users on 1/20. 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.
jue. 2/207:30 pmMIA - BWI
1 stop5h 05mDelta
lun. 2/246:49 pmBWI - MIA
1 stop6h 02mDelta
Deal found 1/20$219
This American Airlines deal was found by Cheapflights users on 1/21. 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.
mar. 2/119:51 pmMIA - BWI
Nonstop2h 40mAmerican Airlines
mar. 2/186:00 amBWI - MIA
Nonstop2h 54mAmerican Airlines
Deal found 1/21$220

Find flights from Key Largo to Washington, D.C. within your budget

Customize your flight search to find flights from Key Largo to Washington, D.C. 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 enero 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiBaltimore

MIA - BWI

MIABWI

Miami

sáb. 2/15

1:51 pm-4:36 pm

Nonstop2h 45m

Baltimore/Washington

dom. 2/23

7:52 pm-10:48 pm

Nonstop2h 56m

$78

MiamiBaltimore

MIA - BWI

MIABWI

Miami

jue. 2/20

9:16 pm-11:56 pm

Nonstop2h 40m

Baltimore/Washington

jue. 2/27

5:36 pm-8:21 pm

Nonstop2h 45m

$79

MiamiBaltimore

MIA - BWI

MIABWI

Miami

vie. 2/21

7:50 am-10:34 am

Nonstop2h 44m

Baltimore/Washington

jue. 2/27

5:36 pm-8:21 pm

Nonstop2h 45m

$80

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

mar. 3/4

9:33 am-7:21 pm

1 stop9h 48m

Washington, D.C. Dulles Intl

sáb. 3/8

5:41 pm-12:25 am

1 stop6h 44m

$102

MiamiWashington, D.C.

MIA - DCA

MIADCA

Miami

sáb. 2/1

6:00 am-9:59 pm

1 stop15h 59m

Washington, D.C. Reagan-National

sáb. 2/8

1:01 pm-1:36 am

1 stop12h 35m

$113

MiamiWashington, D.C.

MIA - DCA

MIADCA

Miami

jue. 2/6

10:20 am-12:59 pm

Nonstop2h 39m

Washington, D.C. Reagan-National

dom. 2/9

1:55 pm-4:51 pm

Nonstop2h 56m

$137

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

jue. 2/6

1:30 pm-4:06 pm

Nonstop2h 36m

Washington, D.C. Dulles Intl

dom. 2/9

5:41 pm-8:39 pm

Nonstop2h 58m

$137

MiamiWashington, D.C.

MIA - DCA

MIADCA

Miami

jue. 2/6

1:36 pm-4:16 pm

Nonstop2h 40m

Washington, D.C. Reagan-National

dom. 2/9

7:00 am-9:58 am

Nonstop2h 58m

$138

MiamiWashington, D.C.

MIA - DCA

MIADCA

Miami

vie. 2/14

8:15 am-6:20 pm

1 stop10h 05m

Washington, D.C. Reagan-National

mar. 2/18

3:00 pm-9:35 pm

1 stop6h 35m

$157

MiamiWashington, D.C.

MIA - DCA

MIADCA

Miami

jue. 2/27

6:00 am-1:59 pm

1 stop7h 59m

Washington, D.C. Reagan-National

lun. 3/3

12:29 pm-10:34 pm

1 stop10h 05m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 32 results
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Best time to book a flight from Key Largo to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Travel insights for flights from Key Largo to Washington, D.C.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Washington, D.C.. Price data was last updated on January 17, 2025.

The price you pay for your flight from Key Largo to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Key Largo to Washington, D.C. (average of $241). Flying from Key Largo to Washington, D.C. in March is currently the most expensive (average of $290). 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 WAS?

Find hourly flight availability from Key Largo to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Washington, D.C. as you normally would.

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

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

Travelers seeking maximum savings on their Key Largo to Washington, D.C. flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Washington, D.C.

Explore weekly flight availability from Key Largo to Washington, D.C.. 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 enero 21, 2025.

The most flights from KE9 to WAS are scheduled on a Thursday (28 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 Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated enero 21, 2025.
Peruse reviews from past customers who have flown with Spirit Airlines, American Airlines and Frontier from Key Largo to Washington, D.C. to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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
3,201 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

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 Key Largo to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Key Largo to Washington, D.C. flight route?

    Within the past month, 59 users have taken a look at flights from Key Largo to Washington, D.C..

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $53. Frontier flights start at $54 while deals on Delta start at $69 one-way.

  • What are the most popular routes from Key Largo to Washington, D.C.?

    The most popular route from Key Largo to Washington, D.C. is Miami - Washington, D.C. Reagan-National. You may also consider Miami - Washington, D.C. Dulles Intl or Miami - Baltimore/Washington.

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

    The top 3 most reliable airlines when flying from Key Largo to Washington, D.C. are Spirit Airlines (100%), Atlas Air (91%) and Envoy Air (86%).

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

    The cheapest flight price from Key Largo to Washington, D.C. is $36. On average you can expect to pay $319. The most popular route, (Miami - Washington, D.C. Reagan-National), can usually be booked for $137.

  • Can I find deals for flights from Key Largo to Washington, D.C. that include hotel bookings?

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

  • How can I find direct flights from Key Largo to Washington, D.C.?

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

  • Can I find deals for business class flights from Key Largo to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Key Largo to Washington, D.C. 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 Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Key Largo to Washington, D.C. (average of $241). Flying from Key Largo to Washington, D.C. in March is currently the most expensive (average of $290). 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

Traveling to a place near Key Largo?

Book flights to Key Largo if you plan to visit one of these locations
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Greenbelt
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston
National Harbor

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Alternative routes for Key Largo to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Key Largo to Washington, D.C.

Discover the top 7 airlines that operate flights from Key Largo to Washington, D.C.. 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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$30Average$121FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$36Average$139FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$57Average$202FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$108Average$319FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$117Average$267FlexibilityNo cancel feeOn-time69%
DeltaCheapest$127Average$282FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$138Average$321FlexibilityNo cancel feeOn-time71%
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