Cheap flights from San Francisco to Key West from $129
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Key West departing on 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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American Airlines flights from San Francisco to Key West
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Delta flights from San Francisco to Key West
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How to get the cheapest flight ticket from San Francisco to Key West
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Key West?
In general, August is the cheapest month to fly from San Francisco to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $307. If you are unable to visit Key West during the month of August, then departing from San Francisco during the month September is also very affordable. Most momondo users find prices during this month for around $363.
What is the cheapest day to depart on your flight to Key West?
On average, the least expensive day to fly to Key West from San Francisco is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $391. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Key West for around $642.
What is the cheapest time of day to depart on your flight to Key West?
According to our data, the cheapest time of day to fly to Key West is in the morning. momondo users have found flights departing from San Francisco to Key West in the morning for as low as $488. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the evening, with an average ticket price of $561. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Key West?
You are more likely to see cheaper flights to Key West from San Francisco when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $499 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from San Francisco for as low as $335 on momondo.
What is the cheapest airline that flies from San Francisco to Key West?
American Airlines, United Airlines, and Delta are the most popular carriers operating from San Francisco to Key West
What airlines fly to Key West?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Key West from San Francisco according to our data. American Airlines is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 3 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.
When to book flights from San Francisco to Key West
Cheap San Francisco to Key West (SFO to EYW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Key West
How far is San Francisco to Key West by plane?
Key West is 2543.6 mi away from San Francisco. Flights usually cover this in 7h 25m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Francisco Airport to Key West Airport?
Prices for flights from San Francisco Airport to Key West Airport are updated daily.
How many operators does momondo search for flights from San Francisco Airport to Key West Airport?
As of March 2025, there are 3 operators available to choose from for flights from San Francisco Airport to Key West Airport.
How old do you have to be to fly from San Francisco Airport to Key West Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Francisco to Key West?
momondo data reveals that the most frequently booked airline on the route from San Francisco to Key West is American Airlines, representing 78% of all bookings. The subsequent popular airlines are Delta at 13% and United Airlines at 8%.
Best airlines flying from San Francisco to Key West
Compare and see reviews for airlines that fly from San Francisco to Key West with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $250 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $270 | Free Cancellation | Rating 8.0 7,899 reviews | |||
| PriceFrom $287 | Free Cancellation | Rating 7.4 8,614 reviews |
Traveling to a place near Key West?
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Why should I use momondo to find a flight deal from San Francisco to Key West?
It is quick and easy to find San Francisco to Key West flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Key West that suits you.
Can I find flights from San Francisco to Key West with flexible booking policies on momondo?
Flights from San Francisco to Key West with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from San Francisco to Key West?
Once all potential San Francisco to Key West flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from San Francisco to Key West right now. Can momondo alert me if prices change?
Yes. momondo can track prices for San Francisco to Key West flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.