$155 Cheap Flights from Tri-Cities (TRI) to Key West (EYW)

View $155 flight on Sat, May 2, 2026Opens in a new window

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Key West Intl. Airport (EYW)

Cheap Flights from Tri-Cities to Key West (TRI-EYW)

Prices were available within the past 7 days and start at $155 for one-way flights and $309 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Sep 8 - Mon, Sep 15
TRI
Tri-Cities
EYW
Key West
$309 Roundtrip, found 6 hours ago
$309
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Mon, Sep 8 from Tri-Cities to Key West, returning Mon, Sep 15, priced at $309 found 6 hours ago
Delta
Mon, Sep 8 - Mon, Sep 15
TRI
Tri-Cities
EYW
Key West
$309 Roundtrip, found 6 hours ago
$309
Roundtrip
found 6 hours ago
Select Delta flight, departing Mon, Sep 8 from Tri-Cities to Key West, returning Mon, Sep 15, priced at $309 found 6 hours ago
American Airlines
Sun, Sep 7 - Sat, Sep 13
TRI
Tri-Cities
EYW
Key West
$311 Roundtrip, found 18 hours ago
$311
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sun, Sep 7 from Tri-Cities to Key West, returning Sat, Sep 13, priced at $311 found 18 hours ago
Delta
Sun, Aug 31 - Sat, Sep 6
TRI
Tri-Cities
EYW
Key West
$312 Roundtrip, found 3 days ago
$312
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Aug 31 from Tri-Cities to Key West, returning Sat, Sep 6, priced at $312 found 3 days ago
American Airlines
Tue, Jul 22 - Tue, Jul 29
TRI
Tri-Cities
EYW
Key West
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jul 22 from Tri-Cities to Key West, returning Tue, Jul 29, priced at $314 found 1 day ago
American Airlines
Sun, Aug 24 - Sun, Aug 31
TRI
Tri-Cities
EYW
Key West
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Aug 24 from Tri-Cities to Key West, returning Sun, Aug 31, priced at $314 found 1 day ago
Delta
Tue, Jul 22 - Thu, Jul 24
TRI
Tri-Cities
EYW
Key West
$319 Roundtrip, found 3 days ago
$319
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jul 22 from Tri-Cities to Key West, returning Thu, Jul 24, priced at $319 found 3 days ago
Delta
Sat, May 2 - Fri, May 8
TRI
Tri-Cities
EYW
Key West
$337 Roundtrip, just found
$337
Roundtrip
just found
Select Delta flight, departing Sat, May 2 from Tri-Cities to Key West, returning Fri, May 8, priced at $337 just found
Delta
Tue, Oct 21 - Wed, Nov 5
TRI
Tri-Cities
EYW
Key West
$338 Roundtrip, found 2 days ago
$338
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 21 from Tri-Cities to Key West, returning Wed, Nov 5, priced at $338 found 2 days ago
Delta
Mon, Sep 8 - Mon, Sep 15
TRI
Tri-Cities
EYW
Key West
$339 Roundtrip, found 6 hours ago
$339
Roundtrip
found 6 hours ago
Select Delta flight, departing Mon, Sep 8 from Tri-Cities to Key West, returning Mon, Sep 15, priced at $339 found 6 hours ago
Flights from Tri-Cities (TRI) to Key West (EYW)
Origin airport
Tri-Cities Regional
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$308
Distance
824 mi

Tri-Cities to Key West Flights

The cheapest times to fly from Tri-Cities to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Tri-Cities to Key West are during the month of September. You can find some of the cheapest flights from Tri-Cities to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tri-Cities to Key West

Sunday is one of the best days to book for cheap flights from Tri-Cities to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Tri-Cities to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Tri-Cities to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $155 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Tri-Cities to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Tri-Cities to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Tri-Cities Regional Airport (TRI) to Key West Intl. Airport (EYW) cost?
Discover the latest flight deals from TRI to EYW by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TRI to EYW?
The cheapest flights from TRI to EYW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TRI to EYW?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TRI to EYW. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Tri-Cities Regional Airport (TRI) to Key West Intl. Airport (EYW)?
There are no daily nonstop flights departing from Tri-Cities Regional Airport (TRI) to Key West Intl. Airport (EYW). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from TRI to EYW?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tri-Cities Regional Airport (TRI) to Key West Intl. Airport (EYW)?
To land at Key West Intl. Airport (EYW) on time, choose a flight that leaves Tri-Cities Regional Airport (TRI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Tri-Cities Regional Airport (TRI) to Key West Intl. Airport (EYW) last-minute?
Last-minute bookings from TRI to EYW are typically more expensive. For the lowest rates, start searching for flights as soon as possible. That said, if you're flexible with your travel dates, it's possible to score a cheap fare just before your departure.
Is it cheaper to book a TRI to EYW flight and hotel package?
Securing a TRI to EYW flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tri-Cities Regional Airport (TRI) to Key West Intl. Airport (EYW)?
Typically, you can reschedule or cancel your TRI to EYW flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you'd like more information, visit our Customer Service portal.

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*Available to One Key members.