Cheap flights from San Francisco (SFO) to Key Largo

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The best prices from San Francisco to Key Largo are usually found in August or January, booked 0 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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

All the information you need to plan the best SFO to MIA flight in 2021: compare San Francisco to Key Largo flight prices with the expected peak season, weather and rainfall in Key Largo.
SFO - KE9
Price
$276 - $493
KE9
Temperature
78.8 - 91.4 °F
KE9
Precipitation
1.7 - 10.4 inches

Popular in

December

High demand for flights, 33% potential price rise

Cheapest in

August

Best time to find cheap flights, 16% potential price drop

Round-trip from

$276

From San Francisco to Key Largo

One-way from

$108

One-way flight from San Francisco to Key Largo

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from San Francisco to Key Largo?

To save up to 33% on this flight, we recommend booking at least 28 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Francisco to Key Largo from $202 1-2 weeks out and tickets from $254 for flights departing within the next 72 hours.

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

July can be a great time to fly to Key Largo from San Francisco with a flight ticket averaging about $207. Cheapflights users have found deals in the month of July for as cheap as $56. The most expensive prices can be found in the month of December.

Cheap flights from San Francisco to Key Largo in August, September 2021

The best prices found for SFO to Key Largo flights for August, September
23 Aug - 7 Sep
$163pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco
23 Aug - 7 Sep
$167pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco
16 Aug - 24 Aug
$169pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco

San Francisco to Key Largo 2021 flight deals

Cheap flights to Key Largo from San Francisco found for this year
23 Aug - 7 Sep
$163pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco
23 Aug - 7 Sep
$167pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco
16 Aug - 24 Aug
$169pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco

Non-stop flights to Key Largo from San Francisco

Save time with San Francisco to Key Largo direct flight deals
16 Nov - 4 Dec
$241pp
SFO
San Francisco
American Airlines
Non-Stop
MIA
Miami
MIA
Miami
American Airlines
Non-Stop
SFO
San Francisco
25 Aug - 31 Aug
$252pp
SFO
San Francisco
American Airlines
Non-Stop
MIA
Miami
MIA
Miami
American Airlines
Non-Stop
SFO
San Francisco
17 Jan - 21 Jan
$261pp
SFO
San Francisco
American Airlines
Non-Stop
MIA
Miami
MIA
Miami
American Airlines
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to Key Largo

Late deals on round-trip flights to Key Largo from San Francisco, departing today and this week
7 Aug - 18 Aug
$200pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco
10 Aug - 17 Aug
$204pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco
10 Aug - 24 Aug
$205pp
SFO
San Francisco
Frontier
 
1 STOP
MIA
Miami
MIA
Miami
Frontier
 
1 STOP
SFO
San Francisco

One-way flights to Key Largo from San Francisco

The cheapest one-way flights from San Francisco to Key Largo
8:15 pm - 9:04 am
United Airlines
1 Stop
9h 49m
SFO - MIA
United Airlines
$108
United
10:03 am - 12:07 pm
Frontier
2 Stops
23h 04m
SFO - MIA
Frontier
$114
Kiwi.com
8:30 pm - 8:43 am
Delta
1 Stop
9h 13m
SFO - MIA
Delta
$119
Delta

Related info for your journey

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

Flight FAQs

From San Francisco to Key Largo

Are flight prices decreasing from San Francisco to Key Largo 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 San Francisco and Key Largo 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 San Francisco to Key Largo have flexible cancellations due to COVID-19?

Some of the carriers operating flights from San Francisco to Key Largo that may be offering flexible cancellation policies are American Airlines, United Airlines, and Frontier. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

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

If you book a flight to Key Largo from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There are 0 flights from San Francisco to Key Largo per day from 10 different airlines.

Can I find flights from San Francisco to Key Largo for under $200 on Cheapflights?

Yes, there are multiple flights from San Francisco to Key Largo for under $200. The cheapest flight booked recently is on Frontier for just $163, but on average you can expect to pay $187.

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

Cheapflights has at least 20 direct flights from San Francisco to Key Largo under $300. A good price for a nonstop flight from San Francisco to Key Largo is less than $315.

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

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

Is San Francisco weather warmer or cooler than Key Largo?

Our data indicates that the weather will be 91 °F on average in the month of July. The temperature in Key Largo is typically hotter than in San Francisco. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

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

Before booking your flight from San Francisco to Key Largo check out the most popular airlines for this route: Major Airline, American Airlines or Alaska Airlines.

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

Looking at all options, your cheapest flight can be booked for $124. While the most popular route (San Francisco - Miami) can be booked for $193 on average our data indicates $934 when flying from San Francisco to Key Largo

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

Consider GOL (94%), Gulf Air (93%) or British Airways (93%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Key Largo.

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

Departing from San Francisco to Key Largo will take you 5h 39m. Both multi-stop and nonstop flights can be found to your destination and back.

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

Cheapflights users have booked flights from San Francisco to Key Largo round-trip from $163. Another airline that can offer you cheap pricing is United Airlines.

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

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $73. Users have also found prices from $99 and $108 on Frontier and American Airlines, respectively.

COVID Restrictions

View COVID Travel Restrictions for Key Largo

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

Information is based on travel restrictions for travel to Key Largo within the United States

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

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 Largo.

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

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

Returning to San Francisco from Key Largo

COVID-19 testing requirements
Visitors from Key Largo 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 Largo are not required to quarantine after entering San Francisco.

Hide COVID Travel Restrictions for Key Largo

Alternative routes for San Francisco to Key Largo

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

Destination information for Key Largo

Things to know before you go - useful duration and weather info for your trip from San Francisco to Key Largo.
Average temperature for August in Key Largo
91.4 °F
Avg rainfall for August in Key Largo
9.5 ″

Airports servicing San Francisco

Airports servicing Key Largo

Top 9 airlines flying from San Francisco to Key Largo

The chart below displays the airlines Cheapflights users traveling from San Francisco to Key Largo 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
Frontier
$84 $291 No cancel fee 62%
Sun Country Air
$131 $310 No cancel fee 83%
Spirit Airlines
$100 $336 No cancel fee 65%
Delta
$132 $359 No cancel fee N/A
United Airlines
$131 $399 No cancel fee 69%
American Airlines
$130 $425 No cancel fee 71%
Alaska Airlines
$141 $425 No cancel fee 75%
JetBlue
$154 $437 No cancel fee 62%
Envoy Air
$443 $633 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by Envoy Air. Please check directly on their website for additional information.

Hourly flight availability from San Francisco to Key Largo

See what time of day planes typically take off from San Francisco towards Key Largo.
Morning 6 AM to noon 75% of SFO to Key Largo departures
Evening 6 PM to midnight 24% of SFO to Key Largo departures
Early morning Midnight to 6 AM 1% of SFO to Key Largo departures
Afternoon Noon to 6 PM 0% of SFO to Key Largo departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Francisco to Key Largo
See how many times per day planes take to the skies headed from San Francisco to Key Largo.
Sunday
13 daily flights
Monday
12 daily flights
Tuesday
13 daily flights
Wednesday
12 daily flights
Thursday
13 daily flights
Friday
13 daily flights
Saturday
13 daily flights
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