Route

Washington, DC to Key West: what the flight costs

In the last 60 days we checked this route 14 times. The typical round trip was $426 per person and the lowest $338, taxes and fees included.

Per person
Lowest seen$338
Typical (median)$426
Price checks, 60 days14

Check live prices

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Trips we picked on this route

Just found · from Washington, DCWorth it, if

Key West

Nov 14–21, 2026 · 7 nights

  • Highs of 78–79°F and lows near 75°F for mid-November
  • Hilton balcony room, partial ocean view, rated 8.6 from 1,084 reviews
  • $339 per person, $66 below the highest fare we saw
The total, before you go

$3,046 for two · 7 nights · flights, hotel, taxes, fees & the resort fee

Flights $677 + hotel $2,132 + resort fee $237, taxes in · a checked bag each adds about $180

B6 + MX · with a stop · 41h 39m

The catch: The $339 fare has 2 stops and takes 41h 39m on the way out; the 3h 10m American nonstop is $738 for two.

Worth it if you can give up a day to get there or pay $738 for two for the nonstop; skip the low fare if time matters most.

Every fare we found in the last 30 days

CheckedTrip datesPer personAirlineStopsDurationSource
Oct 27, 2026Nov 6–8, 2026$467B6 + MX + G4 + F9with a stop27h 24mKiwi.com
Oct 26, 2026Nov 6–8, 2026$470F9 + G4with a stop20h 4mKiwi.com
Oct 26, 2026Nov 6–8, 2026$483F9 + G4with a stop20h 4mKiwi.com
Oct 25, 2026Nov 6–8, 2026$479F9 + G4with a stop20h 4mKiwi.com
Oct 24, 2026Nov 6–8, 2026$476F9 + G4with a stop20h 4mKiwi.com
Oct 24, 2026Nov 6–8, 2026$455F9 + G4with a stop20h 4mKiwi.com
Oct 23, 2026Nov 6–8, 2026$428F9 + G4with a stop20h 4mKiwi.com
Oct 23, 2026Nov 6–8, 2026$424F9 + G4with a stop20h 4mKiwi.com
Oct 22, 2026Nov 6–8, 2026$419F9 + G4with a stop20h 4mKiwi.com
Oct 22, 2026Nov 6–8, 2026$418F9 + MX + G4with a stop20h 24mKiwi.com
Oct 17, 2026Nov 14–21, 2026$369American. Operated by Envoy Air as American Eaglenonstop3h 10mGoogle Flights
Oct 17, 2026Nov 14–21, 2026$339B6 + MXwith a stop41h 39mKiwi.com
Oct 17, 2026Nov 14–21, 2026$338B6 + MX + G4 + F9with a stop17h 30mKiwi.com
Oct 16, 2026Dec 11–14, 2026$406F9 + MX + B6with a stop20h 24mKiwi.com

About Key West

Key West is the end of the road, a small island of pastel conch houses, sunset celebrations and reef snorkelling at the tip of the Florida Keys.

Key West from every city: when to go, where to stay, what to do

Questions about Washington, DC to Key West

What does a round trip from Washington, DC to Key West usually cost?

Over the last 60 days the typical price we found was $426 per person, taxes and fees included, across 14 checks; the lowest was $338.

When is the best time to fly from Washington, DC to Key West?

Key West is at its best in January, February, March, April, May, November and December. Avoid August, September, October: Peak hurricane season; many visitors wait until November

Do I need a passport to fly from Washington, DC to Key West?

No passport needed for travelers from the United States: a government photo ID is enough for Key West.