Flights from Washington Dc to Key West
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From $412 · Prices update daily
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The quick answer
Flights from Washington Dc to Key West start around $412 round-trip. Airlines on this route include: Allegiant Air, American Airlines. Cheapest month: November; peak: March (about +49%). Domestic — no passport required (United States).
Price calendar — next 60 days
★ Cheapest: $412 on Thu, Nov 5 · G4
Lowest return fares · Prices update daily · Final price confirmed at booking
Price calendar — Washington Dc to Key West
Month-by-month lowest fares. Green = cheapest dates.
United States essentials
🇺🇸 Domestic — no passport required
Domestic flight — no passport required for US citizens. Bring REAL ID for security.
Full Key West visa guide →🆘 Emergency
911
💱 Currency
US Dollar ($)
🕐 Time zone
UTC−5 to −10
🗣️ Language
English
🔌 Plugs
Type A/B · 120V
🚗 Driving
Right side
💡 Tipping
Expected — 15–20% at restaurants
📞 Dial code
+1
Entry rules can change — always confirm with official sources before booking.
Stay connected in Key West
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your Washington Dc to Key West trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in Key West
Pre-book your ride into Key West. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your Washington Dc to Key West flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
Washington Dc to Key West — frequently asked
How much is a flight from Washington Dc to Key West?+
Fares start around $412 round-trip, ranging up to about $612 in peak periods. Prices update daily across 800+ airlines.
What is the cheapest month to fly Washington Dc to Key West?+
November typically has the lowest fares, while March is the most expensive (around +49%).
Are there direct flights from Washington Dc to Key West?+
This route is usually served by connecting flights. Use the search above to check for any direct options on your dates.
Which airlines fly from Washington Dc to Key West?+
Carriers on this route include Allegiant Air, American Airlines. Compare them side by side in the search above.
Do US citizens need a visa for United States?+
Domestic — no passport required. Domestic flight — no passport required for US citizens. Bring REAL ID for security.
What currency is used in United States?+
The US Dollar (USD, $). The emergency number is 911.
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