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$129+ Cheap flights from Key Largo, FL to San Diego (SAN)

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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SAN
nov. 26 — dic. 31
mar. 11/26
mar. 12/3
1 adult, Economy
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The best prices from Key Largo to San Diego are usually found in January or February, booked 78 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Key Largo to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to San Diego (SAN). 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 noviembre 21, 2024.

Popular in

October

Cheapest in

January

Round-trip from

$248
(Mytrip)

One-way from

$129
(Cheapflightsfares)
High demand for flights, 11% potential price rise
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Best time to find cheap flights, 14% potential price drop
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From Key Largo to San Diego
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One-way flight from Key Largo to San Diego
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Find flight deals from Key Largo to San Diego

Cheapest flights from Key Largo to San Diego
Explore the most affordable flight options available from Key Largo to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 21, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/59:28 pmMIA - SAN
1 stop13h 45mSpirit Airlines
dom. 12/811:00 amSAN - MIA
3 stops24h 18mSpirit Airlines
Deal found 11/20$248
This Cheapflightsfares deal was found by Cheapflights users on 11/20. 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.
jue. 12/56:00 amMIA - SAN
1 stop7h 58mFrontier
lun. 12/93:38 pmSAN - MIA
1 stop7h 14mFrontier
Deal found 11/20$254
This eDestinos deal was found by Cheapflights users on 11/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/299:20 pmMIA - SAN
1 stop20h 44mMultiple Airlines
vie. 12/68:18 pmSAN - MIA
3 stops24h 54mMultiple Airlines
Deal found 11/20$262
This American Airlines deal was found by Cheapflights users on 11/21. 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.
jue. 12/129:00 pmMIA - SAN
Nonstop5h 46mAmerican Airlines
mar. 12/3112:54 pmSAN - MIA
Nonstop4h 54mAmerican Airlines
Deal found 11/21$297
This Delta deal was found by Cheapflights users on 11/20. 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.
mié. 11/206:00 amMIA - SAN
1 stop8h 38mDelta
mar. 11/267:10 pmSAN - MIA
1 stop7h 48mDelta
Deal found 11/20$347
This United Airlines deal was found by Cheapflights users on 11/20. 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.
jue. 11/216:30 amMIA - SAN
2 stops11h 23mUnited Airlines
jue. 11/288:00 amSAN - MIA
1 stop9h 25mUnited Airlines
Deal found 11/20$383
This Southwest deal was found by Cheapflights users on 11/20. 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.
vie. 11/221:55 pmMIA - SAN
2 stops11h 20mSouthwest
sáb. 11/238:00 amSAN - MIA
2 stops11h 55mSouthwest
Deal found 11/20$469

Find flights from Key Largo to San Diego within your budget

Customize your flight search to find flights from Key Largo to San Diego 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 2,629,791 searches. Data last updated noviembre 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiSan Diego

MIA - SAN

MIASAN

Miami

jue. 12/5

9:28 pm-8:13 am

1 stop13h 45m

San Diego

dom. 12/8

11:00 am-2:18 pm

3 stops24h 18m

$248

MiamiSan Diego

MIA - SAN

MIASAN

Miami

jue. 12/5

6:00 am-10:58 am

1 stop7h 58m

San Diego

lun. 12/9

3:38 pm-1:52 am

1 stop7h 14m

$254

MiamiSan Diego

MIA - SAN

MIASAN

Miami

jue. 2/13

6:25 am-11:48 am

1 stop8h 23m

San Diego

lun. 2/17

6:15 am-6:47 pm

1 stop9h 32m

$262

MiamiSan Diego

MIA - SAN

MIASAN

Miami

jue. 12/12

9:00 pm-11:46 pm

Nonstop5h 46m

San Diego

mar. 12/31

12:54 pm-8:48 pm

Nonstop4h 54m

$297

MiamiSan Diego

MIA - SAN

MIASAN

Miami

mié. 2/26

9:52 am-8:35 pm

1 stop13h 43m

San Diego

lun. 3/3

11:27 am-11:58 pm

1 stop9h 31m

$308

MiamiSan Diego

MIA - SAN

MIASAN

Miami

mié. 2/26

6:15 am-11:11 am

1 stop7h 56m

San Diego

dom. 3/2

10:25 pm-11:47 am

1 stop10h 22m

$331

MiamiSan Diego

MIA - SAN

MIASAN

Miami

mar. 4/15

12:10 pm-6:27 pm

1 stop9h 17m

San Diego

sáb. 4/19

10:40 pm-9:22 am

1 stop7h 42m

$346

MiamiSan Diego

MIA - SAN

MIASAN

Miami

mié. 3/12

7:52 pm-11:59 pm

1 stop31h 07m

San Diego

sáb. 3/15

5:30 pm-4:50 pm

1 stop20h 20m

$402

MiamiSan Diego

MIA - SAN

MIASAN

Miami

vie. 2/28

7:50 am-5:30 pm

1 stop12h 40m

San Diego

mar. 3/4

8:25 am-8:50 pm

2 stops9h 25m

$406

MiamiSan Diego

MIA - SAN

MIASAN

Miami

jue. 2/20

6:25 am-11:48 am

1 stop8h 23m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 18 results
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Best time to book a flight from Key Largo to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego 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 Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to San Diego. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from Key Largo to San Diego, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Key Largo to San Diego (average of $266). Flying from Key Largo to San Diego in March is currently the most expensive (average of $339). 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 SAN?

Find hourly flight availability from Key Largo to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 21, 2024.

When flying from Key Largo to San Diego, 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 Diego?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to San Diego. Price data was last updated on May 12, 2024.

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

Rainfall in San Diego by month

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

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

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

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated noviembre 21, 2024.
Read reviews from past customers who have flown Spirit Airlines, American Airlines and United Airlines from Key Largo to San Diego. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

JetBlue
7.5
Good
3,396 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

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 Diego. 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 Diego from Key Largo?

    If you book a flight to San Diego from Key Largo, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 5 flights from Key Largo to San Diego per day from 8 different airlines.

  • How popular is this Key Largo to San Diego flight route?

    The Key Largo to San Diego flight path was viewed by 2 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 Diego one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $129. However, be on the lookout for offers from Spirit Airlines and American Airlines, as they are both options that can get you from Key Largo to San Diego for a low price.

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

    Before booking your flight to San Diego from Key Largo, check out the most reliable airlines to get you to your destination on time: American Airlines (74%), Alaska Airlines (74%), Qatar Airways( 72%).

  • What are the cheapest flights from Key Largo to San Diego?

    Looking for the cheapest flight from Key Largo to San Diego? While on average our users pay $981, our data indicates the cheapest price to be $163. The most popular route (Miami - San Diego), is priced around $153.

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

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

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

    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 Diego.

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

    Yes. Cheapflights offers flight deals from Key Largo to San Diego 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 Diego?

    Currently, September is the cheapest month in which you can book a flight from Key Largo to San Diego (average of $266). Flying from Key Largo to San Diego in March is currently the most expensive (average of $339). 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 8 airlines flying from Key Largo to San Diego

Discover the top 8 airlines that operate flights from Key Largo to San Diego. 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 2,629,791 searches. Data last updated noviembre 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$113Average$209FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$116Average$242FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$121Average$296FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$121Average$430FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$195Average$355FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$221Average$395FlexibilityNo cancel feeOn-time69%
DeltaCheapest$224Average$304FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$261Average$407FlexibilityNo cancel feeOn-time63%
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