Cheap flights from Seattle to Key West from $214
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Key West departing on 4/29. 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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American Airlines flights from Seattle to Key West
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How to get the cheapest flight ticket from Seattle 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, January is the cheapest month to fly from Seattle to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $483. If you are unable to visit Key West during the month of January, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $593.
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 Seattle is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $597. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Key West for around $940.
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 morning. momondo users have found flights departing from Seattle to Key West in the morning for as low as $674. 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 $756. Departure times in the evening 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 Seattle when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $688 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Seattle for as low as $433 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Key West?
American Airlines, United Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Key West
What airlines fly to Key West?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Key West from Seattle according to our data. American Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 3 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Key West
Cheap Seattle to Key West (SEA to EYW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Key West
How far is Seattle/Tacoma Intl to Key West by plane?
The distance between Seattle/Tacoma Intl and Key West is about 2719.2 mi. By plane, this route typically takes 7h 54m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Key West Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Key West Airport refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Key West Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Key West Airport is 3 as of April 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Key West Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Key West?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Key West is American Airlines (70% of total bookings). The next most popular airlines are Delta (21%) and United Airlines (8%).
Best airlines flying from Seattle to Key West
Compare and see reviews for airlines that fly from Seattle to Key West with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $278 | Free Cancellation | Rating 7.4 8,616 reviews | |||
| PriceFrom $383 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $473 | Free Cancellation | Rating 8.0 7,898 reviews |
Traveling to a place near Key West?
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Why should I use momondo to find a flight deal from Seattle to Key West?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Key West from Seattle.
Can I find flights from Seattle to Key West with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Key West flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Key West?
momondo helps you find the best flight between Seattle and Key West by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Seattle to Key West right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Key West, momondo offers a useful price alert feature which will track prices for flights to Key West from Seattle and alert you when they change.