Flights from San Francisco to Key West
North AmericaYear-round

Cheap Flights from San Francisco to Key West

Track economy fares on the SFO → EYW route and get alerts when prices drop.

From
San Francisco
SFO
To
Key West
EYW

Route Intelligence: San Francisco → Key West

Flight Duration

5 hr 50 min (Direct)

Price Guidance

A good deal is under $250 roundtrip. Standard fare is $350–$500+.

Peak Season

Nov-Mar

Top Airlines

United Airlines, Alaska Airlines

Booking Tip

Book 1-3 months in advance for the best domestic fares.

Track San Francisco → Key West Fares

Set your target price and FlightKitten will scan this route twice daily. The instant economy fares drop below your budget, you'll get an email with the price, airline, and a direct booking link.

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Route Summary: San Francisco → Key West

From
San Francisco (SFO)
To
Key West (EYW)
Duration
5 hr 50 min (Direct)
Airlines
United Airlines, Alaska Airlines
Price Guide
A good deal is under $250 roundtrip. Standard fare is $350–$500+.
Tracking
FlightKitten scans 220+ airlines 2× daily
220+
Airlines Monitored
2×
Daily Scanning
AI
Deal Briefings
7-Day
Free Trial
Premium Cabin

Prefer business class on this route?

CEOFLIGHTSon board with your vision

Everyone deserves comfort at an affordable price. CEOFLIGHTS Personal Travel Managers find you the best business class fares and handle every detail of your journey.

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Also available: BestBusinessClass.com

Other Routes to Key West

New York→Key WestLos Angeles→Key WestChicago→Key WestMiami→Key WestBoston→Key WestSeattle→Key West

More Destinations in North America

Anchorage
Anchorage
Atlanta
Atlanta
Austin
Austin
Boston
Boston
Charleston
Charleston
Charlotte
Charlotte

Route Briefing: San Francisco to Key West

Escaping the West Coast for the laid-back charm of the Florida Keys takes about 5 hours and 45 minutes over 2,650 miles. United, Delta, and American offer easy one-stop flights into Key West International Airport (EYW).

Key West offers a wonderfully eccentric island atmosphere where roosters roam past Victorian conch houses. Rent a bicycle to explore Old Town, tour Ernest Hemingway's historic home, and join the lively sunset celebration at Mallory Square featuring street acrobats and musicians. Enjoy fresh conch fritters, peel-and-eat pink shrimp, and a slice of tart key lime pie while listening to live acoustic music along Duval Street.

Roundtrip economy fares under $220 are a solid deal, with standard fares ranging from $330 to $490. Peak season runs from November through April when winter travelers seek warm sunshine and calm turquoise waters. Book 6 to 10 weeks ahead for the best economy ticket savings.

How much are flights from San Francisco to Key West in 2026?

Flight prices from San Francisco (SFO) to Key West (EYW) vary significantly depending on the season, day of the week, and how far in advance you book. A good deal is under $250 roundtrip. Standard fare is $350–$500+. Popular carriers on this route include United Airlines, Alaska Airlines. FlightKitten eliminates the guesswork by monitoring 220+ airlines twice daily and alerting you the moment economy fares hit your target price.

How does FlightKitten track San Francisco to Key West fares?

FlightKitten is an economy flight price monitoring platform that scans 220+ airlines twice every day for economy fares on the SFO to EYW route. When you set a target price, FlightKitten continuously monitors this route and sends an email alert the moment fares drop below your budget. Each alert includes the exact fare, airline, dates, and an AI-powered briefing that explains whether the deal is genuinely good compared to historical pricing on this route. No more obsessive price checking — set your budget and let FlightKitten do the watching. Learn more about how FlightKitten tracking works.

See our full Key West destination guide for all available routes. Also popular: San Francisco to Anchorage.

Pro tip: Book 1-3 months in advance for the best domestic fares.

Looking for business class on this route? CEOFLIGHTS pairs you with a Personal Travel Manager who finds affordable business class fares and handles every detail of your journey. Alternatively, BestBusinessClass.com offers free expert quotes with real savings.