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$100+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SFO
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Key Largo to San Francisco are usually found in January or February, booked 65 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Key Largo to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$199
(United Airlines)

One-way from

$100
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$378
From Key Largo to San Francisco
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One-way flight from Key Largo to San Francisco
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High demand for flights, 18% potential price rise
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Best time to find cheap flights, 3% potential price drop
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Average for round-trip flights in December 2024
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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 December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/254:37 pmMIA - SFO
1 stop9h 26mUnited Airlines
Wed 1/17:30 amSFO - MIA
Nonstop5h 33mUnited Airlines
Deal found 12/17$247
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:40 amMIA - SFO
1 stop11h 07mDelta
Tue 1/77:00 amSFO - MIA
1 stop11h 11mDelta
Deal found 12/17$266
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/226:00 amMIA - SFO
1 stop28h 59mFrontier
Tue 12/3110:57 pmSFO - MIA
1 stop10h 01mFrontier
Deal found 12/17$271
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:30 pmMIA - SFO
Nonstop6h 28mAmerican Airlines
Tue 12/3111:58 pmSFO - MIA
Nonstop5h 30mAmerican Airlines
Deal found 12/17$277
This FlightHub deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2112:12 pmMIA - SFO
1 stop13h 39mMultiple Airlines
Tue 12/3110:57 pmSFO - MIA
1 stop10h 01mMultiple Airlines
Deal found 12/17$320
This Alaska Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/186:55 pmMIA - SFO
1 stop16h 02mAlaska Airlines
Tue 1/711:20 amSFO - MIA
1 stop26h 35mAlaska Airlines
Deal found 12/17$335
This Southwest deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/191:55 pmMIA - SFO
2 stops11h 10mSouthwest
Sat 1/115:10 amSFO - MIA
2 stops13h 00mSouthwest
Deal found 12/17$489
This Cheapflightsfares deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/207:55 pmMIA - SFO
1 stop18h 51mSun Country Air
Wed 12/256:00 pmSFO - MIA
1 stop13h 59mSun Country Air
Deal found 12/17$529

Find flights from Key Largo to San Francisco within your budget

Customize your flight search to find flights from Key Largo to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Fri 1/17

6:10 am-9:44 am

Nonstop6h 34m

San Francisco

Mon 1/20

11:10 pm-7:43 am

Nonstop5h 33m

$199

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Tue 1/14

7:15 am-10:46 am

Nonstop6h 31m

San Francisco

Wed 2/5

7:00 am-3:28 pm

Nonstop5h 28m

$201

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Fri 1/24

6:14 pm-12:09 am

1 stop8h 55m

San Francisco

Fri 1/31

6:05 am-5:09 pm

1 stop8h 04m

$206

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Wed 1/15

5:45 am-10:04 am

2 stops31h 19m

San Francisco

Sat 1/18

2:39 pm-12:28 am

2 stops30h 49m

$207

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Thu 2/13

7:52 pm-8:52 am

1 stop16h 00m

San Francisco

Sat 2/22

7:59 pm-6:47 pm

1 stop19h 48m

$218

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Sat 1/18

7:50 am-2:57 pm

1 stop10h 07m

San Francisco

Sat 1/25

9:00 am-11:27 pm

1 stop11h 27m

$256

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Wed 1/15

6:32 am-2:09 pm

1 stop10h 37m

San Francisco

Fri 2/7

8:00 am-11:48 pm

1 stop12h 48m

$293

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Thu 1/23

1:50 pm-10:35 pm

2 stops11h 45m

San Francisco

Thu 1/30

5:20 am-10:10 pm

2 stops13h 50m

$387

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Fri 1/17

6:15 pm-9:49 pm

Nonstop6h 34m

$100

MiamiSan Francisco

MIA - SFO

MIASFO

Miami

Tue 1/14

7:15 am-10:46 am

Nonstop6h 31m

$101

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 17 results
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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.

Travel insights for flights from Key Largo to San Francisco

Get recent, data-driven insights about flights from Key Largo to San Francisco including ideal travel times, pricing trends, and more.

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 December 13, 2024.

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 65 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 $381). 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?

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 December 18, 2024.

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?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to San Francisco. Price data was last updated on March 10, 2024.

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. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Francisco by month

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

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

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated December 18, 2024.
To help decide which airline to fly from Key Largo to San Francisco, see what other customers have to say about Alaska Airlines, Delta and United Airlines. 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.
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,279 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Food

7.2

Entertainment

7.7

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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?

    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 8 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 49 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 United Airlines ($100), American Airlines ($101), and Frontier ($102).

  • 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 Japan Airlines (87%), Virgin Australia (83%) or Copa Airlines (83%) 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 $1,231, our data indicates the cheapest price to be $99. The most popular route (Miami - San Francisco), is priced around $154.

  • 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 $381). 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

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Top 6 airlines flying from Key Largo to San Francisco

Discover the top 6 airlines that operate flights from Key Largo to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$79Average$253FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$89Average$292FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$108Average$373FlexibilityNo cancel feeOn-time71%
FrontierCheapest$122Average$227FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$301FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$168Average$346FlexibilityNo cancel feeOn-time69%
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