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Cheap flights from San Diego to Key West from $249

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Key West departing on 5/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Diego to Key West

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Diego to Key West.
American Airlines Logo
10:25 pm - 10:50 amSAN-EYW
9h 25m1 stop
American Airlines Logo
12:50 pm - 6:56 pmEYW-SAN
9h 06m1 stop
$249American Airlines
Find Deal
Sat, May 10 - Tue, May 13
American Airlines Logo
7:22 pm - 10:50 amSAN-EYW
12h 28m2 stops
American Airlines Logo
12:50 pm - 8:51 pmEYW-SAN
11h 01m1 stop
$254American Airlines
Find Deal
Sat, May 10 - Tue, May 13
 Logo
6:15 am - 4:49 pmSAN-EYW
31h 34m2 stops
 Logo
3:46 pm - 7:53 pmEYW-SAN
31h 07m3 stops
Wed, May 7 - Sat, May 10
Delta Logo
8:00 am - 8:30 pmSAN-EYW
9h 30m1 stop
Delta Logo
7:00 am - 1:16 pmEYW-SAN
9h 16m1 stop
$405Delta
Find Deal
Tue, Apr 15 - Wed, Apr 16
 Logo
6:15 am - 4:49 pmSAN-EYW
31h 34m3 stops
 Logo
3:46 pm - 11:56 pmEYW-SAN
35h 10m3 stops
Wed, May 7 - Sat, May 10
Delta Logo
6:15 am - 5:15 pmSAN-EYW
8h 00m1 stop
Delta Logo
7:00 am - 1:16 pmEYW-SAN
9h 16m1 stop
$434Delta
Find Deal
Fri, Apr 11 - Thu, Apr 17
United Airlines Logo
10:00 pm - 11:15 amSAN-EYW
10h 15m1 stop
United Airlines Logo
8:45 am - 2:57 pmEYW-SAN
33h 12m2 stops
$435United Airlines
Find Deal
Fri, Apr 25 - Mon, Apr 28
United Airlines Logo
8:05 am - 6:05 pmSAN-EYW
31h 00m2 stops
United Airlines Logo
8:45 am - 12:58 pmEYW-SAN
31h 13m2 stops
$462United Airlines
Find Deal
Wed, Apr 30 - Mon, May 5
Alaska Airlines Logo
11:00 am - 1:39 pmSAN-EYW
23h 39m3 stops
Alaska Airlines Logo
12:02 pm - 11:59 pmEYW-SAN
14h 57m2 stops
$1,084Alaska Airlines
Find Deal
Fri, May 30 - Mon, Jun 2
Alaska Airlines Logo
2:03 pm - 1:39 pmSAN-EYW
20h 36m3 stops
Alaska Airlines Logo
12:02 pm - 11:59 pmEYW-SAN
14h 57m2 stops
$2,303Alaska Airlines
Find Deal
Sun, May 18 - Sun, May 25

Delta flights from San Diego to Key West

Our best Delta deals on San Diego to Key West flight tickets
Delta
Apr 15
SAN8:00 amSan Diego
9h 30m
1 stop
EYW8:30 pmKey West
Apr 16
EYW7:00 amKey West
9h 16m
1 stop
SAN1:16 pmSan Diego
Delta
Apr 11
SAN6:15 amSan Diego
8h 00m
1 stop
EYW5:15 pmKey West
Apr 17
EYW7:00 amKey West
9h 16m
1 stop
SAN1:16 pmSan Diego
Delta
Apr 11
SAN6:15 amSan Diego
8h 00m
1 stop
EYW5:15 pmKey West
Apr 16
EYW7:00 amKey West
9h 16m
1 stop
SAN1:16 pmSan Diego

United Airlines flights from San Diego to Key West

Our best United Airlines deals on San Diego to Key West flight tickets
United Airlines
Apr 25
SAN10:00 pmSan Diego
10h 15m
1 stop
EYW11:15 amKey West
Apr 28
EYW8:45 amKey West
33h 12m
2 stops
SAN2:57 pmSan Diego
United Airlines
Apr 30
SAN8:05 amSan Diego
31h 00m
2 stops
EYW6:05 pmKey West
May 5
EYW8:45 amKey West
31h 13m
2 stops
SAN12:58 pmSan Diego
United Airlines
Apr 30
SAN6:00 pmSan Diego
21h 05m
3 stops
EYW6:05 pmKey West
May 5
EYW8:45 amKey West
31h 13m
2 stops
SAN12:58 pmSan Diego

See travel insights to Key West from

How to get the cheapest flight ticket from San Diego to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from San Diego to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $383. If you are unable to visit Key West during the month of August, then departing from San Diego during the month January is also very affordable. Most momondo users find prices during this month for around $428.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from San Diego is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $453. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to Key West for around $676.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is in the evening. momondo users have found flights departing from San Diego to Key West in the evening for as low as $510. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the morning, with an average ticket price of $555. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Key West?

You are more likely to see cheaper flights to Key West from San Diego when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $542 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from San Diego for as low as $367 on momondo.

How have San Diego to Key West flight prices changed over time?

As of April 2025, prices for San Diego to Key West flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to Key West (SAN to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Key West

Best Price Found

$249

Fastest flight time

7h 01m

Direct flights

None

Airports in Key West

1 airport
The best flight deal from San Diego to Key West found on momondo in the last 72 hours is $249
The fastest flight from San Diego to Key West takes 7h 01m
There are no direct flights from San Diego to Key West. Popular non-direct route for this connection is San Diego Airport - Key West Airport.
There is 1 airport near Key West: Key West (EYW)

  • How far is San Diego to Key West by plane?

    Key West is 2204.3 mi away from San Diego. Typically, this will take 7h 01m by plane in normal conditions.

  • When did momondo last update prices for flights from San Diego Airport to Key West Airport?

    Prices for flights from San Diego Airport to Key West Airport were last updated today.

  • How many operators does momondo search for flights from San Diego Airport to Key West Airport?

  • How old do you have to be to fly from San Diego Airport to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Diego Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Diego to Key West?


Best airlines flying from San Diego to Key West

Compare and see reviews for airlines that fly from San Diego to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $285Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $297Free CancellationRating
8.0
7,898 reviews
Search Delta flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Key West?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to Key West. momondo saves you time and could save you money on your trip.

Can I find flights from San Diego to Key West with flexible booking policies on momondo?

Yes. All flights to Key West from San Diego on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Diego to Key West?

Once you have performed a search for San Diego to Key West flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Diego to Key West right now. Can momondo alert me if prices change?

Price alerts on flights to Key West from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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