Cheap flights from the United States to Key West from $44
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Key West departing on 7/18. 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 United States 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, September is the cheapest month to fly from United States to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $371. If you are unable to visit Key West during the month of September, then departing from United States during the month January is also very affordable. Most momondo users find prices during this month for around $381.
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 United States is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $432. 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 United States to Key West for around $612.
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 afternoon. momondo users have found flights departing from United States to Key West in the afternoon for as low as $348. 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 evening, with an average ticket price of $686. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest United States to Key West flight route?
Fly from Atlanta Hartsfield-Jackson to Key West for the best United States - Key West flight prices
How far in advance should I book a flight to Key West?
You are more likely to see cheaper flights to Key West from United States when booking 18 weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $440 when searching 18 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from United States for as low as $251 on momondo.
What cabin class options are available on United States to Key West flights?
There are 4 cabin classes available to choose from on United States to Key West flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from United States to Key West?
United Airlines, Silver Airways, and Breeze Airways are the most popular carriers operating from United States to Key West
What airlines fly to Key West?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Key West from United States according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 5 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.
How many flights depart from United States to Key West on average per day?
As of April 2025, there are 21 flights per day flying from United States to Key West. The most common time of day flights depart is 6:00PM, with 52% of flights taking off in the afternoon.
How many flights depart from United States to Key West on average per week?
As of April 2025, there are 150 flights per week flying from United States to Key West. The most common day of the week flights depart is Fri, with 17% of flights taking off on this day.
Cheap United States to Key West flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United States to Key West
When did momondo last update prices for flights from United States to Key West Airport?
Prices for flights from United States to Key West Airport refresh daily.
How many operators does momondo search for flights from United States to Key West Airport?
As of April 2025, there are 7 operators available to choose from for flights from United States to Key West Airport.
How old do you have to be to fly from United States to Key West Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from United States to Key West?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from United States to Key West is Airbus A319 (22.27% of total bookings). The next most popular plane models are ATR 72-201 / 202 (20.63%), Embraer 175 (19.93%), and Boeing 737-700 (15.83%).
Best airlines flying from United States to Key West
Compare and see reviews for airlines that fly from United States to Key West with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $66 | Free Cancellation | Rating 6.3 7,905 reviews | |||
| PriceFrom $135 | Free Cancellation | Rating 7.4 8,636 reviews | |||
| PriceFrom $147 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $210 | Free Cancellation | Rating 7.3 2,924 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 8.0 7,911 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 United States to Key West?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Key West. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from United States to Key West with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Key West from United States with this policy.
How can momondo help me find flights from United States to Key West?
Once all potential United States to Key West flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from United States to Key West right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Key West from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.