Cheap flights from Key West to San Francisco (EYW - SFO)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Key West (EYW) to San Francisco (SFO)

All the information you need to plan the best EYW to SFO flight in 2021: compare Key West to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
What is the cheapest day to fly round-trip from Key West to San Francisco?

Flights from Key West to San Francisco are found to be more expensive on Sunday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Francisco.

How far in advance should I book a flight from Key West to San Francisco?

Find a great deal and save up to 7% by booking at least 35 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Key West to San Francisco within the next two weeks, with the cheapest ticket starting at $99.

What is the cheapest month to fly from Key West to San Francisco?

Flights from Key West to San Francisco lean towards being more expensive in June. Prices are generally better when you fly from Key West to San Francisco in August, with the cheapest ticket starting at $48.

When is the cheapest time to fly from Key West to San Francisco (EYW - SFO)?

A simple way to save on the total cost of your ticket is to fly from Key West to San Francisco in the morning. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the afternoon.

Cheap flights from Key West to San Francisco in July, August 2021

The best prices found for EYW to SFO flights for July, August
23 Aug - 30 Aug
$363pp
EYW
Key West
Multiple Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Delta
 
1 STOP
EYW
Key West
23 Aug - 30 Aug
$367pp
EYW
Key West
American Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
American Airlines
   
2 STOPS
EYW
Key West
23 Aug - 30 Aug
$448pp
EYW
Key West
Delta
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Delta
 
1 STOP
EYW
Key West

Key West to San Francisco 2021 flight deals

Cheap flights to San Francisco from Key West found for this year
21 Oct - 24 Oct
$300pp
EYW
Key West
American Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
American Airlines
   
2 STOPS
EYW
Key West
21 Oct - 24 Oct
$304pp
EYW
Key West
American Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
American Airlines
   
2 STOPS
EYW
Key West
23 Aug - 30 Aug
$363pp
EYW
Key West
Multiple Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Delta
 
1 STOP
EYW
Key West

One-way flights to San Francisco from Key West

The cheapest one-way flights from Key West to San Francisco
3:00 am - 7:20 pm
Delta
1 Stop
19h 20m
EYW - SFO
Delta
$247
Delta
3:05 pm - 5:43 am
United Airlines
1 Stop
17h 38m
EYW - SFO
United Airlines
$379
United
2:05 pm - 2:55 am
Multiple Airlines
3 Stops
39h 50m
EYW - SFO
Multiple Airlines
$535
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Key West</span> to <span class="emphasized">San Francisco</span> flights.

Flight FAQs

From Key West to San Francisco

Are flight prices decreasing from Key West to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Key West and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Key West to San Francisco have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, Delta, and United Airlines flying from Key West to San Francisco have implemented new flexible cancellation policies.

Can I find flights from Key West to San Francisco for under $300 on Cheapflights?

Yes, there are multiple flights from Key West to San Francisco for under $300. The cheapest flight booked recently is on American Airlines for just $300, but on average you can expect to pay $461.

Are there nonstop flights from Key West to San Francisco for under $300 on Cheapflights?

There are no nonstop flights from Key West to San Francisco, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in Key West or San Francisco?

Expected rainfall in Key West is less than in San Francisco. You can expect this to be the case over the next 18 days.

Is Key West weather warmer or cooler than San Francisco?

Temperatures around the 91 °F's can be experienced in August. The weather in San Francisco is colder than in Key West. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Key West to San Francisco?

Airlines like Delta, United Airlines, and American Airlines fly from Key West to San Francisco in about 8h 07m. The time it takes to get you to your destination can typically vary by up to 1h 50m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Key West to San Francisco round-trip?

According to our current data, American Airlines ($300), United Airlines ($416), and JetBlue ($442) offers the cheapest pricing from Key West to San Francisco. American Airlines is priced at 20% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Key West to San Francisco one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $157. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Key West to San Francisco for a low price.

COVID Restrictions

View COVID Travel Restrictions for San Francisco, CA

Do I need a COVID test to fly to San Francisco from Key West?

Information is based on travel restrictions for travel to San Francisco within the United States

Most visitors from Key West need to provide a negative COVID-19 test result and/or quarantine to enter San Francisco.

COVID-19 testing requirements
Visitors from Key West must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Francisco.

Quarantine requirements
Visitors from Key West are not required to quarantine after entering San Francisco.

Do I need a test to fly back to Key West from San Francisco?

Returning to Key West from San Francisco

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Key West.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Key West.

Hide COVID Travel Restrictions for San Francisco, CA

Alternative routes for Key West to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Francisco

Things to know before you go - useful duration and weather info for your trip from Key West to San Francisco.
Average temperature for July in San Francisco
71.6 °F
Avg rainfall for July in San Francisco
0.0 ″

Airports servicing Key West

Airports servicing San Francisco

Top 3 airlines flying from Key West to San Francisco

The chart below displays the airlines Cheapflights users traveling from Key West to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$159 $373 No cancel fee N/A
United Airlines
$169 $381 No cancel fee 69%
American Airlines
$192 $400 No cancel fee 71%
Home North America USA California San Francisco Cheap flights from Key West to San Francisco