$242 Cheap United flights from San Francisco to Key West (SFO to EYW)

Find The Best Day To Fly from San Francisco to Key West

Amazing United SFO to EYW Flight Deals

The cheapest flights to Key West Intl. found within the past 7 days were $361 round trip and $242 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Feb 19 - Tue, Feb 24

SFO

San Francisco

EYW

Key West

$361

Roundtrip

found 1 day ago

Thu, Feb 19 - Tue, Feb 24

SFO

San Francisco

EYW

Key West

$382

Roundtrip

found 1 day ago

Thu, Feb 19 - Tue, Feb 24

SFO

San Francisco

EYW

Key West

$388

Roundtrip

found 1 day ago

EYW From SFO Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.

Orchid Key Inn - Adults Only

Save 100% on your flight

per person

Sep 30 - Oct 7

found 3 hours ago

Roundtrip flight included

San Francisco (SFO) to Key West (EYW)

Lighthouse Hotel - Key West Historic Inns

Save 100% on your flight

per person

Aug 4 - Aug 11

found 21 hours ago

Roundtrip non-stop flight included

San Francisco (SFO) to Key West (EYW)

Almond Tree Inn Hotel - Adults Only

Save 100% on your flight

per person

Sep 30 - Oct 7

found 3 hours ago

Roundtrip flight included

San Francisco (SFO) to Key West (EYW)

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Frequently asked questions

Can I catch a flight from San Francisco Intl. Airport (SFO) to EYW right now?

For information on any current Key West Intl. Airport (EYW) travel advice and quarantine requirements, go to our Covid-19 Travel Advisor. Look before you arrange your flight, so you don't get caught out.

What terminal is United Airlines at San Francisco Airport?

Once you receive the boarding pass for your United Airlines flight from SFO to Key West Intl. Airport (EYW), you should be able to see which terminals you'll be jetting in and out of. Your carrier will have the answers if you can't find those details on your ticket.

Are there United Airlines non-stop flights from SFO to EYW?

You won't find any nonstop flights with United Airlines from San Francisco Intl. Airport (SFO) to Key West Intl. Airport. You will have at least one stopover, so use the time to go for a stroll and stretch out those legs before boarding your next flight.

How long is a United Airlines flight from SFO to EYW?

As it'll take around 9 hours and 19 minutes for your United Airlines flight to head from SFO to EYW, think about packing some entertaining travel games in your cabin bag. You never know --- the passenger next to you might relish the chance to play to break up the trip.

How many direct and indirect flights does United Airlines fly from SFO to EYW?

United Airlines currently operates around 2 flights daily from San Francisco Intl. Airport (SFO) to Key West Intl. Airport.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to EYW, please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from San Francisco SFO to Key West EYW

To find the best deals on flights to San Francisco from Key West with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.

Return flights from San Francisco SFO to Key West EYW with United

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $361 to $388, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.

Book one-way United flights from San Francisco SFO to Key West EYW

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from San Francisco to Key West costs from $242. Prices and availability subject to change. Additional terms may apply.

The easy way to find cheap flights to Key West EYW from San Francisco SFO with United

To find a cheap United flight from San Francisco SFO to Key West EYW, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.

How to find our best airfare deals on United flights from San Francisco SFO to Key West EYW

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as February, or if you book a flight with a stopover.

Find nonstop flights from San Francisco SFO to Key West EYW with United

If you’re keen to be on Key West soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.

Flexible airline tickets for United flights from San Francisco SFO to Key West EYW

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.

There are a lot of reasons to book your flights to Key West EYW from San Francisco SFO with United on Travelocity

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Airport code	Country	Airport name	Number of flights
ORD	USA	O'Hare Intl.	227
DEN	USA	Denver Intl.	226
IAH	USA	George Bush Intercontinental	136
IAD	USA	Washington Dulles Intl.	100
SFO	USA	San Francisco Intl.	64
LAX	USA	Los Angeles Intl.	23
EWR	USA	Liberty Intl.	20
FRA	DEU	Frankfurt Intl.	19
NRT	JPN	Narita Intl.	19
PEK	CHN	Capital Intl.	16

Travelers ❤️ these 🏨 after their flight to Key West

Hyatt Vacation Club at Windward Pointe, Key West

3675 South Roosevelt Boulevard, Key West, FL

This hotel features an outdoor pool, a hot tub, and a restaurant. Guests will appreciate free perks like free self parking and WiFi in public areas. A snack ...

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Hampton Inn Key West FL

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This hotel features a restaurant, an outdoor pool, and a bar/lounge. Business travelers can take advantage of the free WiFi in public areas. Enjoy the 24-hour ...

9/10 Wonderful! (1,189 reviews)

very good choice, for a week

"The hotel is excellently located, very good value. The price is very good for what it offers. The room service is attentive, as is the lobby. Things to improve. The two ice machines nearby are broken; only the one across from the lobby worked, and it's far away. The location faces the street, so ..."

Reviewed on Jul 14, 2025

DoubleTree Resort by Hilton Grand Key - Key West

3990 S Roosevelt Blvd, Key West, FL

This resort features a restaurant, an outdoor pool, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...

7.8/10 Good! (1,008 reviews)

Very nice hotel

"The facility is in the process of being upgraded so the room we stayed in was already redone and very comfortable for a family of 4. However the bathroom tub was ok as it had paint marks and was a bit clogged. The staff came immediately to handle the bathroom."

Reviewed on Jul 13, 2025

Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.