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

The Key Largo to San Francisco flight path was viewed by 57 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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 ($117), American Airlines ($119), and Delta ($129).

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 $1,226, our data indicates the cheapest price to be $118. The most popular route (Miami - San Francisco), is priced around $179.

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 Royal Air Maroc (92%), Japan Airlines (90%) or United Airlines (86%) as they are the most reliable in getting you off to your destination on time.

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

Consider American Airlines, Alaska Airlines or JetBlue when booking your flight. These represent the most popular airlines when flying 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 42% by booking at least 16 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 $292.

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

Our data shows that January tends to be the cheapest month to fly to San Francisco from Key Largo. Users have commonly found prices around $333 for the month, but tickets can be as low as $148. Due to multiple factors, prepare for potentially higher prices in June.

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. 6 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 23 inbound flights from Key Largo per day.

Can I find deals for flights from Key Largo to San Francisco that include hotel bookings?

Yes. In addition to deals on Key Largo to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Key Largo to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to San Francisco.

Can I find deals for business class flights from Key Largo to San Francisco?

Yes. Cheapflights offers flight deals from Key Largo to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$117+ Flights from Key Largo to San Francisco

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Cheapflights Tip: The best prices from Key Largo to San Francisco are usually found in January or October, booked 70 days in advance, depart on a Thursday or Friday and return on a Monday

Cheap flight deals from Key Largo to San Francisco

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$198 (CheapOair)
One-way from	$117 (CheapOair)
Popular in	June
Cheapest in	January
Average price	$306

Provider with most accurate pricing for Miami-San Francisco flight deals.

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From Key Largo to San Francisco

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One-way flight from Key Largo to San Francisco

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($57 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Key Largo to San Francisco

Cheapest flights from Key Largo to San Francisco
Explore the most affordable flight options available from Key Largo to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Thu 4/242:30 pmMIA - SFO

1 stop11h 38mFrontier

Tue 4/293:33 pmSFO - MIA

1 stop10h 48mFrontier

Deal found 4/16

$198

Wed 5/145:00 pmMIA - SFO

1 stop8h 47mUnited Airlines

Wed 5/217:00 amSFO - MIA

Nonstop5h 37mUnited Airlines

Deal found 4/16

$215

Wed 5/77:33 amMIA - SFO

Nonstop6h 19mAmerican Airlines

Fri 5/91:20 pmSFO - MIA

Nonstop5h 31mAmerican Airlines

Deal found 4/16

$219

Tue 7/158:00 amMIA - SFO

1 stop10h 10mDelta

Mon 7/2112:40 amSFO - MIA

1 stop9h 50mDelta

Deal found 4/16

$257

Thu 5/297:10 amMIA - SFO

1 stop8h 14mMultiple Airlines

Mon 6/25:45 amSFO - MIA

1 stop20h 58mMultiple Airlines

Deal found 4/16

$266

Thu 9/116:07 pmMIA - SFO

1 stop18h 05mAlaska Airlines

Tue 9/238:49 pmSFO - MIA

1 stop17h 17mAlaska Airlines

Deal found 4/17

$267

Thu 8/148:00 amMIA - SFO

1 stop7h 10mSouthwest

Fri 8/225:00 amSFO - MIA

2 stops9h 20mSouthwest

Deal found 4/16

$328

Best flights from Key Largo to San Francisco
Discover carefully curated flight deals from Key Largo to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Thu 4/242:30 pmMIA - SFO

1 stop11h 38mFrontier

Tue 4/293:33 pmSFO - MIA

1 stop10h 48mFrontier

Deal found 4/16

$198

Wed 5/145:00 pmMIA - SFO

1 stop8h 47mUnited Airlines

Wed 5/217:00 amSFO - MIA

Nonstop5h 37mUnited Airlines

Deal found 4/16

$215

Wed 5/77:33 amMIA - SFO

Nonstop6h 19mAmerican Airlines

Fri 5/91:20 pmSFO - MIA

Nonstop5h 31mAmerican Airlines

Deal found 4/16

$219

Tue 7/158:00 amMIA - SFO

1 stop10h 10mDelta

Mon 7/2112:40 amSFO - MIA

1 stop9h 50mDelta

Deal found 4/16

$257

Thu 5/297:10 amMIA - SFO

1 stop8h 14mMultiple Airlines

Mon 6/25:45 amSFO - MIA

1 stop20h 58mMultiple Airlines

Deal found 4/16

$266

Thu 7/32:00 pmMIA - SFO

1 stop10h 50mSouthwest

Sun 7/65:15 amSFO - MIA

2 stops9h 25mSouthwest

Deal found 4/16

$328

Last-minute flights from Key Largo to San Francisco
Discover last-minute flight deals from Key Largo to San Francisco. Data last updated April 17, 2025 and is based on user searches.

Wed 4/233:30 pmMIA - SFO

2 stops10h 50mSouthwest

Wed 4/308:10 amSFO - MIA

1 stop10h 20mSouthwest

Deal found 4/16

$338

Wed 4/238:27 amMIA - SFO

2 stops16h 12mAlaska Airlines

Mon 4/288:09 pmSFO - MIA

1 stop17h 52mAlaska Airlines

Deal found 4/17

$567

Thu 4/242:30 pmMIA - SFO

1 stop11h 38mFrontier

Tue 4/293:33 pmSFO - MIA

1 stop10h 48mFrontier

Deal found 4/16

$198

Thu 4/247:34 amMIA - SFO

Nonstop6h 17mAmerican Airlines

Tue 4/2911:37 pmSFO - MIA

Nonstop5h 23mAmerican Airlines

Deal found 4/16

$297

Thu 4/248:05 amMIA - SFO

1 stop9h 44mDelta

Mon 4/2812:47 amSFO - MIA

1 stop10h 05mDelta

Deal found 4/16

$317

Thu 4/248:30 amMIA - SFO

Nonstop6h 31mUnited Airlines

Sun 4/279:01 pmSFO - MIA

1 stop11h 10mUnited Airlines

Deal found 4/16

$351

Thu 4/246:01 pmMIA - SFO

2 stops25h 29mMultiple Airlines

Tue 4/293:33 pmSFO - MIA

1 stop10h 48mMultiple Airlines

Deal found 4/16

$452

Wed 5/77:33 amMIA - SFO

Nonstop6h 19mAmerican Airlines

Fri 5/91:20 pmSFO - MIA

Nonstop5h 31mAmerican Airlines

Deal found 4/16

$219

Wed 5/145:00 pmMIA - SFO

1 stop8h 47mUnited Airlines

Wed 5/217:00 amSFO - MIA

Nonstop5h 37mUnited Airlines

Deal found 4/16

$215

Sat 5/247:25 amMIA - SFO

1 stop9h 04mDelta

Fri 5/3012:40 amSFO - MIA

1 stop10h 03mDelta

Deal found 4/16

$257

Thu 5/297:10 amMIA - SFO

1 stop8h 14mMultiple Airlines

Mon 6/25:45 amSFO - MIA

1 stop20h 58mMultiple Airlines

Deal found 4/16

$266

One-way flights from Key Largo to San Francisco
Search for one-way flight options from Key Largo to San Francisco. Find affordable one-way fares based on user searches. Data last updated April 17, 2025.

Tue 4/226:00 amMIA - SFO

1 stop11h 38mFrontier

Deal found 4/16

$117

Wed 5/147:30 pmMIA - SFO

Nonstop6h 22mAmerican Airlines

Deal found 4/16

$119

Tue 6/35:35 amMIA - SFO

1 stop7h 40mDelta

Deal found 4/15

$129

Sun 5/118:35 amMIA - SFO

Nonstop6h 30mUnited Airlines

Deal found 4/16

$130

Fri 6/1312:15 pmMIA - SFO

2 stops13h 38mMultiple Airlines

Deal found 4/17

$163

Tue 7/152:40 pmMIA - SFO

2 stops11h 50mSouthwest

Deal found 4/16

$204

Tue 5/136:01 pmMIA - SFO

2 stops18h 31mAlaska Airlines

Deal found 4/17

$222

Cheapflights Fare Finder

Use the filters below to find and compare flights from Key Largo to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Thu 4/24

2:30 pm-11:08 pm

1 stop11h 38m

San Francisco

Tue 4/29

3:33 pm-5:21 am

1 stop10h 48m

$198

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Wed 5/14

5:00 pm-10:47 pm

1 stop8h 47m

San Francisco

Wed 5/21

7:00 am-3:37 pm

Nonstop5h 37m

$215

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Wed 5/7

7:33 am-10:52 am

Nonstop6h 19m

San Francisco

Fri 5/9

1:20 pm-9:51 pm

Nonstop5h 31m

$219

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Tue 7/15

8:00 am-3:10 pm

1 stop10h 10m

San Francisco

Mon 7/21

12:40 am-1:30 pm

1 stop9h 50m

$257

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Thu 5/29

7:10 am-12:24 pm

1 stop8h 14m

San Francisco

Mon 6/2

5:45 am-5:43 am

1 stop20h 58m

$266

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Thu 7/3

2:00 pm-9:50 pm

1 stop10h 50m

San Francisco

Sun 7/6

5:15 am-5:40 pm

2 stops9h 25m

$328

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Tue 4/22

6:00 am-2:38 pm

1 stop11h 38m

$117

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Wed 5/14

7:30 pm-10:52 pm

Nonstop6h 22m

$119

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Tue 6/3

5:35 am-10:15 am

1 stop7h 40m

$129

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Sun 5/11

8:35 am-12:05 pm

Nonstop6h 30m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 13 results

Best time to book a flight from Key Largo to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Key Largo with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Key Largo to San Francisco

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

The price you pay for your flight from Key Largo to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Key Largo to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Key Largo to San Francisco (average of $276). Flying from Key Largo to San Francisco in June is currently the most expensive (average of $393). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KE9 to 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.

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

Travelers seeking maximum savings on their Key Largo to San Francisco flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to San Francisco

The most flights from KE9 to SFO are scheduled on a Thursday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (21 on average).

Rainfall in San Francisco by month

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

To help decide which airline to fly from Key Largo to San Francisco, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,882 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,280 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,917 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,667 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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. 6 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 23 inbound flights from Key Largo per day.
How popular is this Key Largo to San Francisco flight route?
The Key Largo to San Francisco flight path was viewed by 57 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
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 ($117), American Airlines ($119), and Delta ($129).
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 Royal Air Maroc (92%), Japan Airlines (90%) or United Airlines (86%) 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 $1,226, our data indicates the cheapest price to be $118. The most popular route (Miami - San Francisco), is priced around $179.
Can I find deals for flights from Key Largo to San Francisco that include hotel bookings?
Yes. In addition to deals on Key Largo to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Key Largo to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key Largo to San Francisco.
Can I find deals for business class flights from Key Largo to San Francisco?
Yes. Cheapflights offers flight deals from Key Largo to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Key Largo to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Key Largo to San Francisco (average of $276). Flying from Key Largo to San Francisco in June is currently the most expensive (average of $393). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Roseville

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Santa Cruz

Turlock

South San Francisco

Fairfield

Manteca

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Richmond

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Hollister

Milpitas

Antioch

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Alameda

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Livermore

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Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Key Largo to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$81	Average$192	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$89	Average$298	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$106	Average$416	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$128	Average$286	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$178	Average$346	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$188	Average$332	FlexibilityNo cancel fee	On-time75%

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$117+ Cheap flights from Key Largo, FL to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Key Largo to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Key Largo to San Francisco are usually found in January or October, booked 70 days in advance, depart on a Thursday or Friday and return on a Monday

Cheap flight deals from Key Largo to San Francisco

Keep the following information in mind while searching for Key Largo to San Francisco flight deals. Data was last updated April 17, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Key Largo to San Francisco

Cheapest flights from Key Largo to San FranciscoExplore the most affordable flight options available from Key Largo to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Explore the most affordable flight options available from Key Largo to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Key Largo to San Francisco that are best for you.

Best time to book a flight from Key Largo to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Key Largo with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Key Largo to San Francisco

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to San Francisco. Price data was last updated on April 11, 2025.

What is the cheapest month to book a flight from Key Largo to San Francisco?

What is the cheapest time of day to fly from KE9 to SFO?

Find hourly flight availability from Key Largo to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Key Largo to San Francisco. Price data was last updated on December 16, 2024.

Weekly flight availability from Key Largo to San Francisco

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

Reviews of airlines servicing San Francisco

Related info for your journey

Find useful and relevant information for your journey from Key Largo to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

Can I find deals for flights from Key Largo to San Francisco that include hotel bookings?

How can I find direct flights from Key Largo to San Francisco?

Can I find deals for business class flights from Key Largo to San Francisco?

What is the cheapest month to book a flight from Key Largo to San Francisco?

Traveling to a place near Key Largo?

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Alternative routes for Key Largo to San Francisco

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Top 6 airlines flying from Key Largo to San Francisco

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Cheapest flights from Key Largo to San Francisco
Explore the most affordable flight options available from Key Largo to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.