Cheap Flights from Knoxville (TYS) to San Juan (SIG)

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Find available prices by choosing your travel dates.
Flights from Knoxville (TYS) to San Juan (SIG)
Origin airport
McGhee Tyson
Destination airport
Fernando Luis Ribas Dominicci
Distance
1621 mi

Knoxville to San Juan Flights

The cheapest times to fly from Knoxville to San Juan

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 Knoxville to San Juan are during the month of . You can find some of the cheapest flights from Knoxville to San Juan with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Knoxville to San Juan

Sunday is one of the best days to book for cheap flights from Knoxville to San Juan: 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 Knoxville to San Juan

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 Knoxville to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Knoxville to San Juan 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 Knoxville to San Juan 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 McGhee Tyson Airport (TYS) to Fernando Luis Ribas Dominicci Airport (SIG) cost?
Discover the latest flight deals from TYS to SIG 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 TYS to SIG?
The cheapest flights from TYS to SIG 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 TYS to SIG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from TYS to SIG. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from McGhee Tyson Airport (TYS) to Fernando Luis Ribas Dominicci Airport (SIG)?
Nonstop flights from McGhee Tyson Airport (TYS) to Fernando Luis Ribas Dominicci Airport (SIG) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your travel details and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from TYS to SIG?
You’ll typically 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 McGhee Tyson Airport (TYS) to Fernando Luis Ribas Dominicci Airport (SIG)?
To avoid potential delays on the McGhee Tyson Airport (TYS) to Fernando Luis Ribas Dominicci Airport (SIG) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 McGhee Tyson Airport (TYS) to Fernando Luis Ribas Dominicci Airport (SIG) last-minute?
Last-minute fares from TYS to SIG are typically more expensive. To lock in the lowest rates, start looking for flights well ahead of time. That said, if your travel plans are flexible, it’s possible to score a cheap fare right before your trip.
Can I cancel or change the date of my flight from McGhee Tyson Airport (TYS) to Fernando Luis Ribas Dominicci Airport (SIG)?
If you booked your TYS to SIG flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.