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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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.
When to book flights from San Diego to Key West
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
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?
As of April 2025, there are 2 operators available to choose from 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?
Based on momondo bookings for flights between San Diego and Key West, the leading airline is American Airlines, making up 76% of the total bookings. Other popular airlines include Delta with 24%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $285 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $297 | Free Cancellation | Rating 8.0 7,898 reviews |
Traveling to a place near Key West?
Book flights to Key West if you plan to visit one of these locationsWhy 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.