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$213+ Cheap flights from San Diego to Key West (SAN - EYW)

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — EYW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Key West are usually found in August or June, booked 63 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Diego to Key West

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Key West (EYW). 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 June 12, 2025.

Round-trip from

$309
(Delta)

One-way from

$213
(Mytrip)

Popular in

July

Cheapest in

August

Average price

$403
From San Diego to Key West
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One-way flight from San Diego to Key West
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from San Diego to Key West

Cheapest flights from San Diego to Key West
Explore the most affordable flight options available from San Diego to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 9/2210:40 pmSAN - EYW
1 stop9h 19mDelta
Thu 10/22:35 pmEYW - SAN
1 stop7h 59mDelta
Deal found 6/10$309
This American Airlines deal was found by Cheapflights users on 6/11. 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 11/196:16 amSAN - EYW
2 stops9h 17mAmerican Airlines
Sun 11/2312:12 pmEYW - SAN
1 stop8h 57mAmerican Airlines
Deal found 6/11$314
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Tue 7/153:57 pmSAN - EYW
2 stops20h 08mMultiple Airlines
Sat 7/193:58 pmEYW - SAN
3 stops44h 57mMultiple Airlines
Deal found 6/10$373
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 9/186:15 amSAN - EYW
2 stops22h 45mUnited Airlines
Mon 9/221:00 pmEYW - SAN
2 stops27h 40mUnited Airlines
Deal found 6/11$424
This KAYAK deal was found by Cheapflights users on 6/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:21 pmSAN - EYW
2 stops41h 58mBreeze Airways
Fri 9/2612:32 pmEYW - SAN
2 stops51h 04mBreeze Airways
Deal found 6/10$861

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego to Key West 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 June 12, 2025.
Use the filters below to find and compare flights from San Diego to Key West that are best for you.

Fly from

San Diego

Fly to

Key West

Route

Depart

Return

Price

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Mon 9/22

10:40 pm-10:59 am

1 stop9h 19m

Key West

Thu 10/2

2:35 pm-7:34 pm

1 stop7h 59m

$309

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Wed 11/19

6:16 am-6:33 pm

2 stops9h 17m

Key West

Sun 11/23

12:12 pm-6:09 pm

1 stop8h 57m

$314

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Tue 7/15

3:57 pm-3:05 pm

2 stops20h 08m

Key West

Sat 7/19

3:58 pm-9:55 am

3 stops44h 57m

$373

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Thu 9/18

6:15 am-8:00 am

2 stops22h 45m

Key West

Mon 9/22

1:00 pm-1:40 pm

2 stops27h 40m

$424

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Tue 9/23

1:21 pm-10:19 am

2 stops41h 58m

Key West

Fri 9/26

12:32 pm-12:36 pm

2 stops51h 04m

$861

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Wed 11/19

2:11 pm-11:40 am

3 stops18h 29m

Key West

Sun 11/23

2:54 pm-9:31 am

3 stops21h 37m

$1,139

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Fri 7/11

5:00 pm-3:08 pm

2 stops19h 08m

$213

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Tue 8/26

10:30 pm-10:56 am

1 stop9h 26m

$258

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Tue 8/26

12:35 pm-2:01 pm

3 stops22h 26m

$308

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Tue 8/26

10:45 pm-1:12 pm

2 stops11h 27m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 11 results
1
2

Best time to book a flight from San Diego to Key West

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Key West. Price data was last updated on June 9, 2025.

The price you pay for your flight from San Diego to Key West may vary depending on when you book. For the best chance of a lower fare, look to book 62 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 San Diego to Key West?

Currently, August is the cheapest month in which you can book a flight from San Diego to Key West (average of $328). Flying from San Diego to Key West in March is currently the most expensive (average of $493). 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.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. 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 Key West. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from San Diego to Key West, such as Breeze Airways, Alaska Airlines 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.
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Alaska Airlines
8.0
Very good
10,000 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,946 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,790 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Allegiant Air
7.3
Good
725 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

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

  • What are the cheapest airlines flying from San Diego to Key West round-trip?

    Currently priced at $309, Delta will fly you from San Diego to Key West and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $314 and $424, respectively. You may be able to fly from San Diego to Key West for 38% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Diego to Key West one-way?

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $213. Delta flights start at $258 while deals on United Airlines start at $308 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from San Diego to Key West (average of $328). Flying from San Diego to Key West in March is currently the most expensive (average of $493). 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 2 airlines flying from San Diego to Key West

Discover the top 2 airlines that operate flights from San Diego to Key West. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$474FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$543FlexibilityNo cancel feeOn-time71%

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