$64+ Cheap flights from Key Largo, FL to Washington, D.C. (WAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — WAS
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Key Largo to Washington, D.C. 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 Key Largo to Washington, D.C. are usually found in January or October, booked 58 days in advance, depart on a Friday or Thursday and return on a Saturday
Cheap flight deals from Key Largo to Washington, D.C.
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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 September 5, 2026.
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 September 5, 2026.
This iWofly deal was found by Cheapflights users on 8/31. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:25 am -
Nonstop2h 40m
Tue 10/2010:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 8/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:23 am -
Nonstop2h 40m
Sat 9/2610:48 am -
Nonstop2h 54m
Deal found 8/31![Frontier logo]()
$122
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:23 am -
Nonstop2h 40m
Sat 10/1010:50 am -
Nonstop2h 43m
Deal found 9/1![Frontier logo]()
$123
This CheapOair deal was found by Cheapflights users on 8/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:25 am -
Nonstop2h 40m
Mon 10/1210:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$127
This Expedia deal was found by Cheapflights users on 9/1. 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.
Thu 10/227:25 am -
Nonstop2h 40m
Thu 10/2911:09 am -
Nonstop2h 50m
Deal found 9/1![Frontier logo]()
$128
This Frontier deal was found by Cheapflights users on 8/31. 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 10/1511:15 am -
Nonstop2h 41m
Thu 10/2210:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$129
This Expedia deal was found by Cheapflights users on 9/3. 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 10/137:25 am -
Nonstop2h 40m
Thu 10/1510:22 am -
1 stop11h 28m
Deal found 9/3![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 8/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:25 am -
Nonstop2h 40m
Tue 10/1310:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$131
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:42 am -
Nonstop2h 40m
Tue 10/2710:54 am -
Nonstop2h 50m
Deal found 9/2![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 9/2. 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.
Fri 9/257:23 am -
Nonstop2h 40m
Sat 10/1710:50 am -
Nonstop2h 43m
Deal found 9/2![Frontier logo]()
$133
This Travelocity deal was found by Cheapflights users on 9/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:05 am -
1 stop11h 42m
Wed 10/2810:54 am -
Nonstop2h 50m
Deal found 9/4![Frontier logo]()
$134
This Gotogate deal was found by Cheapflights users on 9/2. 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.
Thu 10/154:30 pm -
1 stop7h 51m
Mon 10/197:50 am -
1 stop7h 35m
Deal found 9/2![Frontier logo]()
$149
Best flights from Key Largo to Washington, D.C.Discover carefully curated flight deals from Key Largo to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Key Largo to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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.
Thu 10/2211:20 am -
Nonstop2h 36m
Mon 10/265:05 pm -
1 stop5h 51m
Deal found 9/3![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 9/3. 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.
Fri 10/27:10 am -
1 stop4h 00m
Wed 10/72:15 pm -
2 stops8h 00m
Deal found 9/3![Southwest logo]()
$247
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/81:26 pm -
Nonstop2h 33m
Mon 10/128:25 am -
Nonstop2h 55m
Deal found 9/2![United Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 9/3. 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 1/121:15 pm -
1 stop6h 41m
Sat 1/166:10 pm -
1 stop6h 42m
Deal found 9/3![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 10/37:00 am -
2 stops5h 20m
Mon 10/56:10 pm -
1 stop5h 00m
Deal found 9/2![Southwest logo]()
$272
This Delta deal was found by Cheapflights users on 9/3. 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 1/56:40 am -
1 stop7h 18m
Mon 1/116:00 am -
1 stop8h 34m
Deal found 9/3![Delta logo]()
$278
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Thu 10/221:26 pm -
Nonstop2h 33m
Mon 10/266:10 am -
1 stop5h 59m
Deal found 9/3![United Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 9/3. 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.
Mon 10/197:10 am -
2 stops7h 25m
Fri 10/233:55 pm -
2 stops7h 05m
Deal found 9/3![Southwest logo]()
$298
This Delta deal was found by Cheapflights users on 9/3. 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 1/1211:20 am -
Nonstop2h 36m
Sat 1/162:55 pm -
Nonstop2h 48m
Deal found 9/3![Delta logo]()
$278
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Sat 9/268:54 am -
1 stop7h 39m
Tue 9/2912:38 pm -
1 stop6h 14m
Deal found 9/1![United Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 9/2. 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.
Fri 10/911:20 am -
Nonstop2h 36m
Tue 10/131:45 pm -
Nonstop2h 39m
Deal found 9/2![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 9/1. 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.
Thu 10/2911:45 am -
2 stops9h 30m
Fri 10/302:50 pm -
2 stops8h 20m
Deal found 9/1![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 9/251:26 pm -
Nonstop2h 33m
Mon 9/288:25 am -
Nonstop2h 55m
Deal found 9/1![United Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 9/3. 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.
Thu 10/16:10 pm -
2 stops6h 35m
Mon 10/59:00 am -
2 stops9h 00m
Deal found 9/3![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 9/1. 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.
Thu 10/2211:20 am -
Nonstop2h 36m
Tue 10/271:45 pm -
Nonstop2h 39m
Deal found 9/1![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Thu 10/11:26 pm -
Nonstop2h 33m
Tue 10/612:38 pm -
1 stop6h 14m
Deal found 9/1![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 9/1. 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.
Wed 10/74:30 pm -
1 stop6h 25m
Sun 10/112:55 pm -
2 stops8h 10m
Deal found 9/1![Southwest logo]()
$319
This Delta deal was found by Cheapflights users on 9/2. 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.
Fri 11/207:45 pm -
1 stop5h 13m
Thu 11/264:50 pm -
1 stop6h 38m
Deal found 9/2![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/38:54 am -
1 stop7h 39m
Sat 10/108:25 am -
Nonstop2h 55m
Deal found 9/4![United Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 8/31. 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.
Thu 9/247:00 am -
1 stop5h 15m
Sat 9/2612:20 pm -
2 stops7h 00m
Deal found 8/31![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 8/31. 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.
Mon 11/211:24 am -
Nonstop2h 36m
Sun 11/81:45 pm -
Nonstop2h 39m
Deal found 8/31![Delta logo]()
$308
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/38:54 am -
1 stop7h 39m
Wed 10/712:38 pm -
1 stop6h 14m
Deal found 9/4![United Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 9/2. 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.
Sat 10/310:25 am -
2 stops8h 05m
Mon 10/53:25 pm -
2 stops7h 35m
Deal found 9/2![Southwest logo]()
$328
This Delta deal was found by Cheapflights users on 8/31. 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.
Thu 10/83:30 pm -
1 stop7h 25m
Mon 10/1211:05 am -
1 stop7h 40m
Deal found 8/31![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 9/1. 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 9/224:05 pm -
Nonstop2h 35m
Thu 9/241:45 pm -
Nonstop2h 40m
Deal found 9/1![Southwest logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Thu 9/175:37 pm -
1 stop5h 22m
Tue 9/2212:35 pm -
1 stop6h 17m
Deal found 9/3![United Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 9/2. 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.
Fri 11/2011:25 am -
Nonstop2h 39m
Thu 11/268:10 am -
1 stop8h 09m
Deal found 9/2![Delta logo]()
$328
This Southwest deal was found by Cheapflights users on 9/4. 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 12/296:15 am -
Nonstop2h 35m
Wed 1/611:10 am -
2 stops10h 30m
Deal found 9/4![Southwest logo]()
$331
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/256:00 am -
1 stop5h 44m
Mon 11/305:50 pm -
1 stop6h 36m
Deal found 9/3![United Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 9/1. 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.
Fri 12/251:55 pm -
Nonstop2h 43m
Mon 12/285:42 pm -
1 stop7h 16m
Deal found 9/1![Delta logo]()
$328
Last-minute flights from Key Largo to Washington, D.C.Discover last-minute flight deals from Key Largo to Washington, D.C.. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Key Largo to Washington, D.C.. Data last updated September 5, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:23 am -
Nonstop2h 40m
Sat 9/2610:48 am -
Nonstop2h 54m
Deal found 8/31![Frontier logo]()
$122
This Frontier deal was found by Cheapflights users on 9/2. 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.
Fri 9/257:23 am -
Nonstop2h 40m
Sat 10/1710:50 am -
Nonstop2h 43m
Deal found 9/2![Frontier logo]()
$133
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:23 am -
Nonstop2h 40m
Sat 10/1010:50 am -
Nonstop2h 43m
Deal found 9/1![Frontier logo]()
$123
This CheapOair deal was found by Cheapflights users on 8/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:25 am -
Nonstop2h 40m
Mon 10/1210:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$127
This Super.com deal was found by Cheapflights users on 8/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:25 am -
Nonstop2h 40m
Tue 10/1310:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$131
This iWofly deal was found by Cheapflights users on 8/31. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:25 am -
Nonstop2h 40m
Tue 10/2010:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$120
This Expedia deal was found by Cheapflights users on 9/3. 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 10/137:25 am -
Nonstop2h 40m
Thu 10/1510:22 am -
1 stop11h 28m
Deal found 9/3![Frontier logo]()
$130
This Frontier deal was found by Cheapflights users on 8/31. 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 10/1511:15 am -
Nonstop2h 41m
Thu 10/2210:50 am -
Nonstop2h 43m
Deal found 8/31![Frontier logo]()
$129
This Gotogate deal was found by Cheapflights users on 9/2. 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.
Thu 10/154:30 pm -
1 stop7h 51m
Mon 10/197:50 am -
1 stop7h 35m
Deal found 9/2![Frontier logo]()
$149
This Travelocity deal was found by Cheapflights users on 9/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:05 am -
1 stop11h 42m
Wed 10/2810:54 am -
Nonstop2h 50m
Deal found 9/4![Frontier logo]()
$134
This Expedia deal was found by Cheapflights users on 9/1. 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.
Thu 10/227:25 am -
Nonstop2h 40m
Thu 10/2911:09 am -
Nonstop2h 50m
Deal found 9/1![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:42 am -
Nonstop2h 40m
Tue 10/2710:54 am -
Nonstop2h 50m
Deal found 9/2![Frontier logo]()
$132
One-way flights from Key Largo to Washington, D.C.Search for one-way flight options from Key Largo to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from Key Largo to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Booking.com deal was found by Cheapflights users on 8/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:23 am -
Nonstop2h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 11/67:40 am -
Nonstop2h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$71
This Super.com deal was found by Cheapflights users on 8/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:25 am -
Nonstop2h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Frontier logo]()
$72
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:23 am -
Nonstop2h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$73
This Priceline deal was found by Cheapflights users on 9/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:30 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$75
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:30 pm -
1 stop8h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 9/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:23 am -
Nonstop2h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 11/35:05 am -
1 stop28h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 12/26:15 am -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/299:43 pm -
1 stop11h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/1310:36 pm -
1 stop18h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$84
This Trip.com deal was found by Cheapflights users on 9/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:55 pm -
1 stop18h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$85
Find flight deals from Key Largo to Washington, D.C.
Keep the following information in mind while searching for Key Largo to Washington, D.C. flight deals. Data was last updated September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $120 (iWofly) |
One-way from | $64 (Booking.com) |
Popular in | August |
Cheapest in | January |
Average price | $192 |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated September 5, 2026.
Use the filters below to find and compare flights from Key Largo to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Tue 10/20
12:35 pm-9:25 pm
1 stop8h 50m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$119
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Sat 10/31
6:25 am-3:10 pm
2 stops8h 45m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$124
MiamiWashington, D.C.
MIA Miami - DCA Washington, D.C. Reagan-National
MIADCA
Miami
Sat 10/31
7:15 am-5:00 pm
2 stops9h 45m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$124
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Thu 9/24
5:05 pm-7:45 pm
Nonstop2h 40m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
Quickest round-trip
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Wed 9/30
7:30 am-10:00 am
Nonstop2h 30m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Sat 10/24
7:00 am-4:00 pm
2 stops9h 00m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$154
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Thu 10/1
6:10 pm-12:40 am
2 stops6h 30m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$154
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Wed 10/7
7:00 am-6:05 pm
2 stops11h 05m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$154
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Sat 2/27
6:00 am-11:48 am
1 stop5h 48m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
MiamiBaltimore
MIA Miami - BWI Baltimore/Washington
MIABWI
Miami
Thu 2/4
6:40 am-4:10 pm
2 stops9h 30m
Baltimore/Washington
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$166
Showing 1-10 of 60 resultsSorted by cheapest first
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.
MIA-BWI
MIA-IAD
MIA-DCA
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 Washington, D.C.
KE9-WAS
MIA-BWI
MIA-IAD
MIA-DCA
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 September 5, 2026.
One of the essential ways to save on airfare from Key Largo to Washington, D.C. is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 44% on airfare.
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 September 5, 2026.
The most flights from KE9 to WAS are scheduled on a Friday (25 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Key Largo to Washington, D.C.?
Airfare is below average for this route at the moment.
Key Largo to Washington, D.C. flights typically cost between $125 and $243 in October.The cheapest round-trip price found within the last 5 days was $120 on Frontier (Oct 13-Oct 20).
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 August 29, 2026.
Travelers seeking maximum savings on their Key Largo to Washington, D.C. flight should consider departing on Sunday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 September 5, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Key Largo to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
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.
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsAlexandria
Owings Mills
Arlington
Tysons
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Woodbridge
Falls Church
Hanover
Laurel
Oxon Hill
Clinton
Hunt Valley
Silver Spring
Largo
Springfield
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Alternative routes for Key Largo to Washington, D.C.
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Key Largo and Washington, D.C. flights
Browse other Key Largo and Washington, D.C. flight options. Last updated on September 5, 2026.
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Key Largo to Washington, D.C. flights
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Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 5, 2026.
Top 6 airlines flying from Key Largo to Washington, D.C.
Discover the top 6 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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$34 | Average$131 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$79 | Average$225 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$117 | Average$321 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$244 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$125 | Average$297 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$132 | Average$327 | FlexibilityNo cancel fee | On-time71% |