Delta flights to Key West from Seattle

View S$315 flight on Mon, 17 Nov, 2025Opens in a new window
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Delta flights from Seattle to Key West (SEA→EYW)

Prices were available within the past 7 days and start at S$315 for one-way flights and S$681 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 17 Nov - Thu, 20 Nov
SEA
Seattle
EYW
Key West
S$681 Return, found 2 days ago
S$681
Return
found 2 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Key West, returning Thu, 20 Nov, priced at S$681 found 2 days ago
Delta
Mon, 17 Nov - Thu, 20 Nov
SEA
Seattle
EYW
Key West
S$688 Return, found 2 days ago
S$688
Return
found 2 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Key West, returning Thu, 20 Nov, priced at S$688 found 2 days ago
Delta
Mon, 17 Nov - Thu, 20 Nov
SEA
Seattle
EYW
Key West
S$721 Return, found 2 days ago
S$721
Return
found 2 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Key West, returning Thu, 20 Nov, priced at S$721 found 2 days ago
Delta
Mon, 17 Nov - Thu, 20 Nov
SEA
Seattle
EYW
Key West
S$727 Return, found 2 days ago
S$727
Return
found 2 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Key West, returning Thu, 20 Nov, priced at S$727 found 2 days ago
Delta
Mon, 17 Nov - Thu, 20 Nov
SEA
Seattle
EYW
Key West
S$754 Return, found 2 days ago
S$754
Return
found 2 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Key West, returning Thu, 20 Nov, priced at S$754 found 2 days ago
Delta
Mon, 17 Nov - Thu, 20 Nov
SEA
Seattle
EYW
Key West
S$760 Return, found 2 days ago
S$760
Return
found 2 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Key West, returning Thu, 20 Nov, priced at S$760 found 2 days ago
Seattle to Key West route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Key West Intl.
Distance
4347 km

Frequently asked questions

How much is a Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Key West Intl. Airport (EYW)?
Finding cheap one-way Delta Air Lines flights from SEA to EYW from S$315 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from S$681 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to EYW with Delta Air Lines?
September is one of the cheapest months to jet away to Key West with Delta Air Lines. You could also find great prices on one-way and return fares in August.
Does Delta Air Lines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Key West Intl. Airport (EYW)?
Simply enter your dates, click search and use the "Nonstop" filter on Expedia to browse any direct flights from SEA to EYW with Delta Air Lines or other airlines.
What airports does Delta Air Lines fly into in Key West?
Key West Intl. Airport (EYW) is the primary Key West gateway for Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA).
Can I change or cancel my Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Key West Intl. Airport (EYW)?
Depending on the ticket type you purchased, a fee may apply if you change or cancel your flight more than 24 hours after it's confirmed. To find plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when you search for flights. For additional information on cancelling or changing your reservation, visit "Trips," select your flight and tick "Manage Booking."
*Available to Expedia members.