$443+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BCN
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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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 March 10, 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 March 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 5/123:48 pm
TYS
- BCN
2 stops38h 22m
Multiple Airlines
Sat 5/236:30 pm
BCN
- TYS
1 stop24h 29m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$670
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Sun 4/1910:49 am
TYS
- BCN
1 stop20h 26m
United Airlines
Tue 4/2812:15 pm
BCN
- TYS
2 stops40h 53m
United Airlines
Deal found 3/7![United Airlines logo]()
$735
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/157:00 am
TYS
- BCN
2 stops19h 00m
United Airlines
Fri 4/2412:15 pm
BCN
- TYS
2 stops40h 19m
United Airlines
Deal found 3/8![United Airlines logo]()
$739
This Delta deal was found by Cheapflights users on 3/7. 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.
Sun 4/195:54 pm
TYS
- BCN
1 stop12h 56m
Delta
Wed 4/2911:00 am
BCN
- TYS
1 stop15h 06m
Delta
Deal found 3/7![Delta logo]()
$746
This oojo deal was found by Cheapflights users on 3/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
TYS
- BCN
1 stop17h 45m
British Airways
Tue 4/2810:30 am
BCN
- TYS
1 stop16h 51m
British Airways
Deal found 3/7![British Airways logo]()
$750
This American Airlines deal was found by Cheapflights users on 3/8. 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 10/288:37 pm
TYS
- BCN
2 stops14h 53m
American Airlines
Fri 11/63:05 pm
BCN
- TYS
1 stop14h 40m
American Airlines
Deal found 3/8![American Airlines logo]()
$752
This American Airlines deal was found by Cheapflights users on 3/5. 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 4/157:00 am
TYS
- BCN
1 stop17h 45m
American Airlines
Fri 4/243:30 pm
BCN
- TYS
1 stop14h 29m
American Airlines
Deal found 3/5![American Airlines logo]()
$755
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:38 pm
TYS
- BCN
2 stops15h 02m
American Airlines
Tue 4/2810:30 am
BCN
- TYS
2 stops16h 56m
American Airlines
Deal found 3/7![American Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 3/9. 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 9/235:45 am
TYS
- BCN
1 stop20h 35m
United Airlines
Fri 10/28:00 am
BCN
- TYS
2 stops18h 22m
United Airlines
Deal found 3/9![United Airlines logo]()
$759
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 March 10, 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 March 10, 2026.
This United Airlines deal was found by Cheapflights users on 3/7. 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 4/159:40 am
TYS
- BCN
2 stops17h 40m
United Airlines
Fri 4/243:15 pm
BCN
- TYS
2 stops25h 35m
United Airlines
Deal found 3/7![United Airlines logo]()
$768
This Delta deal was found by Cheapflights users on 3/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:40 am
TYS
- BCN
2 stops21h 05m
Delta
Fri 4/2411:00 am
BCN
- TYS
1 stop13h 14m
Delta
Deal found 3/6![Delta logo]()
$815
This Expedia deal was found by Cheapflights users on 3/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:06 pm
TYS
- BCN
2 stops23h 24m
Iberia
Sun 4/269:30 pm
BCN
- TYS
2 stops29h 51m
Iberia
Deal found 3/5![Iberia logo]()
$823
This United Airlines deal was found by Cheapflights users on 3/8. 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 9/15:45 am
TYS
- BCN
1 stop20h 35m
United Airlines
Fri 9/1112:15 pm
BCN
- TYS
2 stops34h 44m
United Airlines
Deal found 3/8![United Airlines logo]()
$840
Last-minute flights from Knoxville to BarcelonaDiscover last-minute flight deals from Knoxville to Barcelona. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Barcelona. Data last updated March 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/157:00 am
TYS
- BCN
2 stops19h 00m
United Airlines
Fri 4/2412:15 pm
BCN
- TYS
2 stops40h 19m
United Airlines
Deal found 3/8![United Airlines logo]()
$739
This American Airlines deal was found by Cheapflights users on 3/5. 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 4/157:00 am
TYS
- BCN
1 stop17h 45m
American Airlines
Fri 4/243:30 pm
BCN
- TYS
1 stop14h 29m
American Airlines
Deal found 3/5![American Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Sun 4/1910:49 am
TYS
- BCN
1 stop20h 26m
United Airlines
Tue 4/2812:15 pm
BCN
- TYS
2 stops40h 53m
United Airlines
Deal found 3/7![United Airlines logo]()
$735
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Sun 4/1910:49 am
TYS
- BCN
2 stops16h 11m
United Airlines
Wed 4/293:15 pm
BCN
- TYS
1 stop13h 53m
United Airlines
Deal found 3/7![United Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Mon 4/2010:49 am
TYS
- BCN
2 stops16h 11m
United Airlines
Tue 4/2812:00 pm
BCN
- TYS
2 stops16h 34m
United Airlines
Deal found 3/7![United Airlines logo]()
$760
This oojo deal was found by Cheapflights users on 3/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
TYS
- BCN
1 stop17h 45m
British Airways
Tue 4/2810:30 am
BCN
- TYS
1 stop16h 51m
British Airways
Deal found 3/7![British Airways logo]()
$750
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:38 pm
TYS
- BCN
2 stops15h 02m
American Airlines
Tue 4/2810:30 am
BCN
- TYS
2 stops16h 56m
American Airlines
Deal found 3/7![American Airlines logo]()
$756
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 March 10, 2026.
Search for one-way flight options from Knoxville to Barcelona. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Wed 4/154:25 pm
TYS
- BCN
3 stops50h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Fri 5/151:15 pm
TYS
- BCN
2 stops39h 45m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 7/257:10 am
TYS
- BCN
2 stops27h 45m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$461
This oojo deal was found by Cheapflights users on 3/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:06 pm
TYS
- BCN
2 stops23h 24m
Aer Lingus
Deal found 3/9![Aer Lingus logo]()
$464
This oojo deal was found by Cheapflights users on 3/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:06 pm
TYS
- BCN
2 stops23h 24m
Aer Lingus
Deal found 3/5![Aer Lingus logo]()
$472
This oojo deal was found by Cheapflights users on 3/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:00 am
TYS
- BCN
1 stop17h 45m
British Airways
Deal found 3/9![British Airways logo]()
$527
This KLM deal was found by Cheapflights users on 3/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:38 pm
TYS
- BCN
1 stop14h 12m
KLM
Deal found 3/5![KLM logo]()
$528
This United Airlines deal was found by Cheapflights users on 3/6. 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 5/67:00 am
TYS
- BCN
3 stops19h 00m
United Airlines
Deal found 3/6![United Airlines logo]()
$532
This Air Canada deal was found by Cheapflights users on 3/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:50 am
TYS
- BCN
3 stops17h 30m
Air Canada
Deal found 3/5![Air Canada logo]()
$540
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 March 10, 2026.
Round-trip from | $670 (Kiwi.com) |
|---|---|
One-way from | $443 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $704 |
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 March 10, 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 - BCN
TYSBCN
Knoxville McGhee Tyson
Wed 4/15
9:40 am-9:20 am
2 stops17h 40m
Barcelona-El Prat
Fri 4/24
3:15 pm-10:50 am
2 stops25h 35m
$768
Quickest round-trip
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Wed 4/15
5:40 am-8:45 am
2 stops21h 05m
Barcelona-El Prat
Fri 4/24
11:00 am-6:14 pm
1 stop13h 14m
$815
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Sun 4/19
5:06 pm-10:30 pm
2 stops23h 24m
Barcelona-El Prat
Sun 4/26
9:30 pm-9:21 pm
2 stops29h 51m
$823
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Tue 9/1
5:45 am-8:20 am
1 stop20h 35m
Barcelona-El Prat
Fri 9/11
12:15 pm-4:59 pm
2 stops34h 44m
$840
Cheapest one-way
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Fri 5/15
1:15 pm-11:00 am
2 stops39h 45m
$456
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Wed 5/6
5:06 pm-10:30 pm
2 stops23h 24m
$472
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Wed 5/6
7:00 am-6:45 am
1 stop17h 45m
$527
Quickest one-way
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Wed 5/6
4:38 pm-12:50 pm
1 stop14h 12m
$528
KnoxvilleBarcelona
TYS - BCN
TYSBCN
Knoxville McGhee Tyson
Wed 5/6
9:50 am-9:20 am
3 stops17h 30m
$540
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
What is the cheapest month to book a flight from Knoxville to Barcelona?
Currently, April is the cheapest month in which you can book a flight from Knoxville to Barcelona (average of $433). Flying from Knoxville to Barcelona in June is currently the most expensive (average of $950). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Knoxville to Barcelona?
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 March 10, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines 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.
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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 March 10, 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 March 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Knoxville to Barcelona
Discover the top 4 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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$432 | Average$668 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$433 | Average$1,237 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$872 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$664 | Average$836 | FlexibilityNo cancel fee | On-time69% |