$364+ Cheap flights from Knoxville (TYS) to Barcelona
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BCN
Sep 6 — Sep 131
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Barcelona with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Knoxville to Barcelona
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Cheapest flights from Knoxville to BarcelonaExplore the most affordable flight options available from Knoxville to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2026.
Explore the most affordable flight options available from Knoxville to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2026.
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:45 am -
1 stop17h 15m
Fri 11/131:35 pm -
2 stops33h 24m
Deal found 8/2![United Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:58 am -
2 stops17h 37m
Wed 11/181:35 pm -
2 stops40h 24m
Deal found 8/6![United Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:45 am -
1 stop17h 15m
Tue 11/1710:30 am -
1 stop15h 06m
Deal found 8/6![United Airlines logo]()
$769
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:06 pm -
2 stops15h 34m
Wed 11/1812:00 pm -
1 stop14h 49m
Deal found 8/6![British Airways logo]()
$771
This Air Canada deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:58 am -
2 stops17h 37m
Wed 11/189:55 am -
3 stops20h 04m
Deal found 8/6![Multiple Airlines logo]()
$783
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:06 pm -
2 stops14h 09m
Tue 9/2912:20 pm -
1 stop16h 47m
Deal found 8/3![American Airlines logo]()
$799
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:40 pm -
2 stops21h 15m
Fri 11/61:35 pm -
2 stops33h 24m
Deal found 8/7![United Airlines logo]()
$802
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:30 am -
1 stop21h 05m
Fri 11/611:00 am -
1 stop15h 17m
Deal found 8/3![American Airlines logo]()
$803
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
2 stops20h 20m
Tue 9/2911:15 am -
2 stops15h 34m
Deal found 8/3![United Airlines logo]()
$807
Best flights from Knoxville to BarcelonaDiscover carefully curated flight deals from Knoxville to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
Discover carefully curated flight deals from Knoxville to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 7, 2026.
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:45 am -
1 stop17h 15m
Fri 11/131:35 pm -
2 stops33h 24m
Deal found 8/2![United Airlines logo]()
$749
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:28 pm -
2 stops15h 22m
Fri 10/26:10 am -
2 stops21h 34m
Deal found 8/7![Delta logo]()
$819
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:58 am -
2 stops17h 37m
Wed 11/181:35 pm -
2 stops40h 24m
Deal found 8/6![United Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:45 am -
2 stops25h 45m
Fri 11/61:35 pm -
2 stops33h 24m
Deal found 8/4![United Airlines logo]()
$802
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 pm -
2 stops18h 15m
Fri 10/211:15 am -
1 stop18h 44m
Deal found 8/4![United Airlines logo]()
$822
Last-minute flights from Knoxville to BarcelonaDiscover last-minute flight deals from Knoxville to Barcelona. Data last updated August 7, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Barcelona. Data last updated August 7, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 pm -
2 stops32h 20m
Thu 9/2411:15 am -
2 stops15h 34m
Deal found 8/2![United Airlines logo]()
$857
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:06 pm -
2 stops14h 09m
Tue 9/2912:20 pm -
1 stop16h 47m
Deal found 8/3![American Airlines logo]()
$799
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
2 stops20h 20m
Tue 9/2911:15 am -
2 stops15h 34m
Deal found 8/3![United Airlines logo]()
$807
This Air Canada deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:45 am -
3 stops16h 15m
Tue 9/291:15 pm -
2 stops27h 22m
Deal found 8/3![Multiple Airlines logo]()
$828
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:28 pm -
2 stops15h 22m
Fri 10/26:10 am -
2 stops21h 34m
Deal found 8/7![Delta logo]()
$819
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 pm -
2 stops18h 15m
Fri 10/211:15 am -
1 stop18h 44m
Deal found 8/4![United Airlines logo]()
$822
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:20 am -
2 stops18h 45m
Fri 10/27:40 am -
2 stops18h 03m
Deal found 8/6![British Airways logo]()
$845
This American Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:48 pm -
1 stop11h 57m
Fri 10/212:20 pm -
1 stop16h 47m
Deal found 8/5![American Airlines logo]()
$852
One-way flights from Knoxville to BarcelonaSearch for one-way flight options from Knoxville to Barcelona. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
Search for one-way flight options from Knoxville to Barcelona. Find affordable one-way fares based on user searches. Data last updated August 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:30 am -
3 stops46h 40m
Deal found 8/4![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:30 am -
3 stops56h 40m
Deal found 8/6![Multiple Airlines logo]()
$419
This TravelUp deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:20 pm -
1 stop31h 00m
Deal found 8/6![Lufthansa logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am -
2 stops24h 30m
Deal found 8/5![WestJet logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:38 am -
3 stops30h 42m
Deal found 8/5![Multiple Airlines logo]()
$645
This TravelUp deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:02 pm -
1 stop13h 13m
Deal found 8/5![Lufthansa logo]()
$666
Find flight deals from Knoxville to Barcelona
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 7, 2026.
Round-trip from | $749 (United Airlines) |
|---|---|
One-way from | $364 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $887 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Barcelona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Knoxville to Barcelona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Mon 11/9
9:45 am-9:00 am
1 stop17h 15m
Barcelona-El Prat
Fri 11/13
1:35 pm-4:59 pm
2 stops33h 24m
$749
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Wed 11/11
9:58 am-9:35 am
2 stops17h 37m
Barcelona-El Prat
Wed 11/18
1:35 pm-11:59 pm
2 stops40h 24m
$752
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Wed 10/28
9:45 am-4:30 pm
2 stops25h 45m
Barcelona-El Prat
Fri 11/6
1:35 pm-4:59 pm
2 stops33h 24m
$802
Quickest round-trip
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Wed 9/23
5:28 pm-2:50 pm
2 stops15h 22m
Barcelona-El Prat
Fri 10/2
6:10 am-9:44 pm
2 stops21h 34m
$819
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Wed 9/23
6:00 pm-6:15 pm
2 stops18h 15m
Barcelona-El Prat
Fri 10/2
11:15 am-11:59 pm
1 stop18h 44m
$822
Cheapest one-way
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Sun 10/11
6:30 am-11:10 am
3 stops46h 40m
$364
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Sat 9/5
9:30 am-12:10 am
3 stops56h 40m
$419
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Sat 9/5
7:20 pm-8:20 am
1 stop31h 00m
$473
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Tue 9/1
6:00 am-12:30 pm
2 stops24h 30m
$510
Quickest one-way
KnoxvilleBarcelona
TYS Knoxville McGhee Tyson - BCN Barcelona-El Prat
TYSBCN
Knoxville McGhee Tyson
Tue 9/1
6:02 pm-1:15 pm
1 stop13h 13m
$666
Sorted by cheapest first
Best time to book a flight from Knoxville to Barcelona
Have a flexible travel schedule? Discover the best time to fly to Barcelona from Knoxville with our price prediction graph.
TYS-S37
TYS-BCN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Knoxville to Barcelona
TYS-S37
TYS-BCN
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Barcelona
Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated August 7, 2026.
Read reviews from past customers who have flown United Airlines,American Airlines, andBritish Airways from Knoxville to Barcelona. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.7
Boarding
7.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.7
Boarding
7.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.7
Boarding
7.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Food
6.7
Boarding
7.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
Complete your trip to Barcelona by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Knoxville to Barcelona by cabin class
Find flights from Knoxville to Barcelona, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Knoxville and Barcelona flights
Browse other Knoxville and Barcelona flight options. Last updated on August 7, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on August 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Knoxville to Barcelona
Discover the top 3 airlines that operate flights from Knoxville to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$432 | Average$668 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$605 | Average$993 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$664 | Average$864 | FlexibilityNo cancel fee | On-time69% |