San Francisco

Cheap flights from Key Largo to San Francisco (KE9 - SFO)

The best prices from Key Largo to San Francisco are usually found in August or January, booked 27 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

How to find the cheapest flight from Key Largo to San Francisco

All the information you need to plan the best KE9 to SFO flight in 2022: compare Key Largo to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.

KE9 - SFO

Price

$257 - $364

SFO

Temperature

51.8 - 62.6 °F

SFO

Precipitation

0 - 4.4 inches

Popular in

December

High demand for flights, 19% potential price rise

Cheapest in

August

Best time to find cheap flights, 13% potential price drop

Round-trip from

$257

From Key Largo to San Francisco

One-way from

$92

One-way flight from Key Largo to San Francisco

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

Find a great deal and save up to 7% by booking at least 25 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 Largo to San Francisco within the next two weeks, with the cheapest ticket starting at $299.

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

Our data shows that August tends to be the cheapest month to fly to San Francisco from Key Largo. Users have commonly found prices around $295 for the month, but tickets can be as low as $137. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Key Largo to San Francisco (KE9 - SFO)?

When flying from Key Largo to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Key Largo to San Francisco in January, February 2022

The best prices found for Key Largo to SFO flights for January, February
Feb 24 - Feb 28
MIA

Miami

SFO

San Francisco

1 stop

15h 43m
SFO

San Francisco

MIA

Miami

1 stop

16h 32m
$97

Frontier

View Deal

Deal found 1/19/22

Feb 24 - Feb 28
MIA

Miami

SFO

San Francisco

1 stop

15h 43m
SFO

San Francisco

MIA

Miami

1 stop

16h 32m
$98

Frontier

View Deal

Deal found 1/19/22

Feb 2 - Feb 9
MIA

Miami

SFO

San Francisco

1 stop

15h 45m
SFO

San Francisco

MIA

Miami

1 stop

7h 39m
$101

Frontier

View Deal

Deal found 1/19/22

Key Largo to San Francisco 2022 flight deals

Cheap flights to San Francisco from Key Largo found for this year
Feb 24 - Feb 28
MIA

Miami

SFO

San Francisco

1 stop

15h 43m
SFO

San Francisco

MIA

Miami

1 stop

16h 32m
$97

Frontier

View Deal

Deal found 1/19/22

Feb 24 - Feb 28
MIA

Miami

SFO

San Francisco

1 stop

15h 43m
SFO

San Francisco

MIA

Miami

1 stop

16h 32m
$98

Frontier

View Deal

Deal found 1/19/22

Feb 2 - Feb 9
MIA

Miami

SFO

San Francisco

1 stop

15h 45m
SFO

San Francisco

MIA

Miami

1 stop

7h 39m
$101

Frontier

View Deal

Deal found 1/19/22

Non-stop flights to San Francisco from Key Largo

Save time with Key Largo to San Francisco direct flight deals
Feb 8 - Feb 9
MIA

Miami

SFO

San Francisco

Nonstop

6h 18m
SFO

San Francisco

MIA

Miami

Nonstop

5h 17m
$194

American Airlines

View Deal

Deal found 1/18/22

Feb 8 - Feb 14
MIA

Miami

SFO

San Francisco

Nonstop

6h 18m
SFO

San Francisco

MIA

Miami

Nonstop

5h 17m
$195

American Airlines

View Deal

Deal found 1/17/22

Feb 4 - Feb 9
MIA

Miami

SFO

San Francisco

Nonstop

6h 32m
SFO

San Francisco

MIA

Miami

Nonstop

5h 34m
$196

United Airlines

View Deal

Deal found 1/19/22

Last minute flights from Key Largo to San Francisco

Late deals on return flights to San Francisco from Key Largo, departing today and this week
Jan 26 - Feb 2
MIA

Miami

SFO

San Francisco

1 stop

15h 45m
SFO

San Francisco

MIA

Miami

1 stop

7h 40m
$104

Frontier

View Deal

Deal found 1/19/22

Jan 26 - Jan 29
MIA

Miami

SFO

San Francisco

1 stop

15h 45m
SFO

San Francisco

MIA

Miami

1 stop

12h 03m
$126

Frontier

View Deal

Deal found 1/19/22

Jan 26 - Feb 7
MIA

Miami

SFO

San Francisco

1 stop

15h 45m
SFO

San Francisco

MIA

Miami

1 stop

14h 04m
$128

Frontier

View Deal

Deal found 1/20/22

One-way flights to San Francisco from Key Largo

The cheapest one-way flights from Key Largo to San Francisco
Mar 1
MIA

Miami

SFO

San Francisco

1 stop

23h 00m
$62

Frontier

View Deal

Deal found 1/18/22

Feb 14
MIA

Miami

SFO

San Francisco

1 stop

15h 44m
$68

Frontier

View Deal

Deal found 1/17/22

Mar 29
MIA

Miami

SFO

San Francisco

1 stop

14h 44m
$70

Frontier

View Deal

Deal found 1/17/22

Related info for your journey

Useful info, stats and facts about Key Largo to San Francisco flights.

What airport do you fly into for flights to San Francisco from Key Largo?

San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly into when you book flights from Key Largo to San Francisco. 9 airlines have flights to San Francisco from Key Largo on a regular basis. Booking flights from Key Largo to San Francisco should not be difficult; the airport handles an average of 15 inbound flights from Key Largo per day.

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

American Airlines, United Airlines, and Frontier are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Key Largo to San Francisco for under $100 on Cheapflights?

Yes, there are multiple flights from Key Largo to San Francisco for under $100. The cheapest flight booked recently is on Frontier for just $97, but on average you can expect to pay $136.

Are there nonstop flights from Key Largo to San Francisco for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Key Largo to San Francisco under $200. A good price for a nonstop flight from Key Largo to San Francisco is less than $233.

Are there last-minute flights available from Key Largo to San Francisco for under $200?

There are currently 20+ open flights from Key Largo to San Francisco within the next 7 days for less than $200.

What days are nonstop flights available from Key Largo to San Francisco?

Days when nonstop flights are available for this flight are: Sunday, Monday.

How popular is this Key Largo to San Francisco flight route?

The Key Largo to San Francisco flight path was viewed by 166 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from Key Largo to San Francisco on average per day?

Travelers can expect 3 flights from Key Largo to San Francisco on average per day.
Morning (6am - Noon) - 67% of flight departures
Afternoon (Noon - 6pm) - 33% of flight departures

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

Departing from Key Largo to San Francisco will take you 15h 43m. The distance from Key Largo to San Francisco is about 2595 mi.

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

The cheapest airlines for a one-way flight from Key Largo to San Francisco are Frontier ($62), United Airlines ($97), and American Airlines ($99).

What are the most popular airlines that fly from Key Largo to San Francisco?

Consider Major Airline, American Airlines or Alaska Airlines when booking your flight. These represent the most popular airlines when flying from Key Largo to San Francisco.

What are the most reliable airlines from Key Largo to San Francisco?

No one likes to see their flight delayed. When booking a flight from Key Largo to San Francisco consider choosing Cathay Pacific (85%), Qatar Airways (81%) or Copa Airlines (77%) as they are the most reliable in getting you off to your destination on time.

What are the cheapest flights from Key Largo to San Francisco?

Looking for the cheapest flight from Key Largo to San Francisco? While on average our users pay $736, our data indicates the cheapest price to be $89. The most popular route (Miami - San Francisco), is priced around $134.

Other flights to San Francisco

Can I fly to San Francisco from Key Largo right now?

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

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

COVID-19 testing requirements
Visitors from Key Largo must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to San Francisco.

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

Can I fly back to Key Largo from San Francisco?

Returning to Key Largo from San Francisco

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Key Largo.

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

Alternative routes for Key Largo to San Francisco

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

Top 7 airlines flying from Key Largo to San Francisco

The chart below displays the airlines Cheapflights users traveling from Key Largo to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Frontier
Cheapest$84
Average$230
FlexibilityNo cancel fee
On-time62%
COVID-19 safety
Spirit Airlines
Cheapest$115
Average$230
FlexibilityNo cancel fee
On-time65%
COVID-19 safety
Alaska Airlines
Cheapest$123
Average$290
FlexibilityNo cancel fee
On-time75%
COVID-19 safety
United Airlines
Cheapest$123
Average$333
FlexibilityNo cancel fee
On-time69%
COVID-19 safety
American Airlines
Cheapest$130
Average$352
FlexibilityNo cancel fee
On-time71%
COVID-19 safety
Delta
Cheapest$132
Average$317
FlexibilityNo cancel fee
On-timeN/A
COVID-19 safety
JetBlue
Cheapest$138
Average$361
FlexibilityNo cancel fee
On-time62%
COVID-19 safety

Hourly flight availability from Key Largo to San Francisco

See what time of day planes typically take off from Key Largo to San Francisco
1%of flight departuresEarly morningMidnight to 6 am
27%of flight departuresMorning6 am to noon
38%of flight departuresAfternoonNoon to 6 pm
34%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Key Largo to San Francisco

See how many times per day planes take to the skies headed from Key Largo to San Francisco
Sunday14daily flights
Monday15daily flights
Tuesday14daily flights
Wednesday14daily flights
Thursday17daily flights
Friday14daily flights
Saturday17daily flights