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Cheap flights from Knoxville to Barcelona

Compare Knoxville to Barcelona flight deals

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Flight deals from Knoxville to Barcelona

Looking for a cheap last-minute deal or the best round-trip flight from Knoxville to Barcelona? Find the lowest prices on one-way and round-trip tickets right here.
Barcelona.$645 per passenger.Departing Wed, Apr 1, returning Wed, Apr 8.Round-trip flight with United.Outbound indirect flight with United, departing from Knoxville on Wed, Apr 1, arriving in Barcelona.Inbound indirect flight with United, departing from Barcelona on Wed, Apr 8, arriving in Knoxville.Price includes taxes and charges.From $645, select.
Barcelona.$723 per passenger.Departing Wed, Mar 25, returning Wed, Apr 1.Round-trip flight with Allegiant Air and LEVEL.Outbound indirect flight with Allegiant Air, departing from Knoxville on Wed, Mar 25, arriving in Barcelona.Inbound indirect flight with LEVEL, departing from Barcelona on Wed, Apr 1, arriving in Knoxville.Price includes taxes and charges.From $723, select.
Barcelona.$796 per passenger.Departing Tue, Sep 1, returning Fri, Sep 11.Round-trip flight with United.Outbound indirect flight with United, departing from Knoxville on Tue, Sep 1, arriving in Barcelona.Inbound indirect flight with United, departing from Barcelona on Fri, Sep 11, arriving in Knoxville.Price includes taxes and charges.From $796, select.
Barcelona.$815 per passenger.Departing Tue, Feb 24, returning Fri, Feb 27.Round-trip flight with Allegiant Air and Vueling Airlines.Outbound indirect flight with Allegiant Air, departing from Knoxville on Tue, Feb 24, arriving in Barcelona.Inbound indirect flight with Vueling Airlines, departing from Barcelona on Fri, Feb 27, arriving in Knoxville.Price includes taxes and charges.From $815, select.
Barcelona.$889 per passenger.Departing Thu, Mar 5, returning Sun, Mar 15.Round-trip flight with Allegiant Air and Ryanair.Outbound indirect flight with Allegiant Air, departing from Knoxville on Thu, Mar 5, arriving in Barcelona.Inbound indirect flight with Ryanair, departing from Barcelona on Sun, Mar 15, arriving in Knoxville.Price includes taxes and charges.From $889, select.
Barcelona.$1,063 per passenger.Departing Tue, Jul 28, returning Mon, Aug 3.Round-trip flight with Lufthansa.Outbound indirect flight with Lufthansa, departing from Knoxville on Tue, Jul 28, arriving in Barcelona.Inbound indirect flight with Lufthansa, departing from Barcelona on Mon, Aug 3, arriving in Knoxville.Price includes taxes and charges.From $1,063, select.
Barcelona.$1,129 per passenger.Departing Sat, Jun 27, returning Tue, Jun 30.Round-trip flight with Allegiant Air and Ryanair.Outbound indirect flight with Allegiant Air, departing from Knoxville on Sat, Jun 27, arriving in Barcelona.Inbound indirect flight with Ryanair, departing from Barcelona on Tue, Jun 30, arriving in Knoxville.Price includes taxes and charges.From $1,129, select.
Barcelona.$1,202 per passenger.Departing Tue, Jul 14, returning Mon, Jul 20.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from Knoxville on Tue, Jul 14, arriving in Barcelona.Inbound indirect flight with Aer Lingus, departing from Barcelona on Mon, Jul 20, arriving in Knoxville.Price includes taxes and charges.From $1,202, select.

Find the cheapest month to fly from Knoxville to Barcelona

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Knoxville to Barcelona flights are currently cheapest in April.
Feb
from $815
Mar
from $888
Apr
from $645
May
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Jun
from $1,129
Jul
from $1,202
Aug
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Sep
from $796
Oct
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Nov
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Dec
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Jan
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Knoxville to Barcelona: Alternative routes

Compare routes from Knoxville to Barcelona below. You may find an airport to fly into that's cheaper, faster, or easier than Barcelona.

Barcelona

12km from central Barcelona
ClosestCheapest
from $645
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Girona

76km from central Barcelona
from $973
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Reus

88km from central Barcelona
from $1,058
Search flights

Knoxville to Barcelona: Flight information

The things to know before you go.
Cheapest flight found$645
Cheapest month to flyApril

Finding cheap flights from Knoxville to Barcelona: Frequently asked questions

The best price we found for a round-trip flight from Knoxville to Barcelona is $645. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Knoxville to Barcelona. But we found flights with one or more stops from $645.
There are no flights flying from Knoxville to Barcelona, as of February 2026.
The cheapest month to fly from Knoxville to Barcelona is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Knoxville Airport to Barcelona Airport on Wednesday, April 1, 2026.
No airlines currently offer direct flights between Knoxville Airport and Barcelona Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Barcelona but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Barcelona is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Barcelona.

Flying from McGhee Tyson Airport (TYS) to Barcelona-El Prat Airport (BCN): what you need to know

  • The timezone in Barcelona is UTC+1, which is five hours ahead of Knoxville.

  • To ensure you get on your TYS to BCN flight, leave enough time to check in and drop off your luggage. Arriving two hours before international departures and an hour before domestic flights is the standard rule.

  • Flying during a peak month like July? Public holidays and other high seasons can lead to longer queues at security. Play it safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

How to find the cheapest flights from McGhee Tyson Airport (TYS) to Barcelona-El Prat Airport (BCN)

  • The cheapest price we've seen for a one-way McGhee Tyson Airport to Barcelona-El Prat Airport flight is $374. A round-trip ticket is currently $645. Depending on the availability and when you book, these fares may change.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from TYS to BCN if you book ahead. Airlines often have some terrific early bird deals.

  • The 'Whole month' search tool shows you the cheapest flights from McGhee Tyson Airport to Barcelona-El Prat Airport throughout the entire month. It's an easy way to snap up a bargain if your travel plans are flexible.

  • You won't have to check back in every day to see if fares have dropped when you create a Price Alert. We'll notify you as soon as there's a change in price on cheap flights from TYS to BCN.

  • Tailor your flights using filters. Pick your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from McGhee Tyson Airport to Barcelona-El Prat Airport.

Handy information about McGhee Tyson Airport (TYS)

  • TYS's address is 2055 Alcoa Highway.

  • When it comes to the on-time performance of McGhee Tyson Airport, data shows 78.98% of flights arrive within the expected timeframe.

  • Central Knoxville to McGhee Tyson Airport is approximately 23 kilometers. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Get your break off to a relaxed start by staying near TYS. Whether you're boarding an early flight from McGhee Tyson Airport to Barcelona-El Prat Airport or just don't want to be rushed, these hotels are the answer:

Arriving at Barcelona-El Prat Airport (BCN)

Getting from Barcelona-El Prat Airport (BCN) to central Barcelona

  • Barcelona-El Prat Airport to central Barcelona has a drive time of about 25 minutes. It's approximately 18 kilometers away.

  • It takes around 35 minutes if you're traveling on public transport.

When to fly to Barcelona-El Prat Airport (BCN)

  • The quietest month for a flight from McGhee Tyson Airport to Barcelona-El Prat Airport is January, while July is the most popular. Pick the ideal time to go to Barcelona based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Barcelona is August, with temperatures ranging between 20ºC (68ºF) and 31ºC (88ºF). Lock in your flights from McGhee Tyson Airport to Barcelona-El Prat Airport in this month if this is the type of weather you enjoy.

  • Search for cheap tickets from TYS to BCN in January if you like traveling in cooler conditions. Temperatures are at their lowest around then, ranging between 5ºC (41ºF) and 14ºC (57ºF) on average.

Explore more of Spain

  • Barcelona has plenty going for it, but there are so many other parts of Spain waiting to be explored. About 257 kilometers west of Barcelona, a visit to Zaragoza will keep you busy. Don't miss top attractions like Puente de Piedra, Museo Pablo Gargallo and El Tubo.

  • Logroño is another essential stop in Spain and is around 402 kilometers west of Barcelona. No trip is complete without seeing Concatedral de Santa Maria de la Redonda, Museo de la Rioja and Iglesia de Santiago el Real.

Plan the rest of your trip from Knoxville to Barcelona

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.