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Portugal

$647+ Cheap flights from Knoxville (TYS) to Portugal

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LIS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Knoxville to Portugal

Keep the following information in mind while searching for Knoxville to Portugal flight deals. Data was last updated June 12, 2025.

Round-trip from

$867
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$1,724
From Knoxville McGhee Tyson to Portugal
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($456 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($68 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Knoxville to Portugal

Cheapest flights from Knoxville to Portugal
Explore the most affordable flight options available from Knoxville to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 10/247:00 amTYS - LIS
2 stops20h 20mUnited Airlines
Tue 11/45:00 amLIS - TYS
2 stops23h 59mUnited Airlines
Deal found 6/10$647
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:01 pmTYS - LIS
1 stop12h 04mBritish Airways
Tue 11/46:30 amLIS - TYS
2 stops20h 01mBritish Airways
Deal found 6/10$677
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 10/47:10 amTYS - LIS
1 stop17h 20mMultiple Airlines
Wed 10/156:25 amLIS - TYS
2 stops37h 05mMultiple Airlines
Deal found 6/10$774
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 10/47:16 amTYS - LIS
1 stop20h 49mAmerican Airlines
Thu 10/166:35 amLIS - TYS
2 stops17h 24mAmerican Airlines
Deal found 6/10$836
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/19:55 amTYS - LIS
2 stops30h 55mLufthansa
Tue 7/85:05 amLIS - TYS
2 stops23h 54mLufthansa
Deal found 6/11$905
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Sun 7/65:45 amTYS - LIS
2 stops24h 20mAir Canada
Mon 7/1411:25 amLIS - TYS
2 stops32h 33mAir Canada
Deal found 6/11$1,125
This Gurufare deal was found by Cheapflights users on 6/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/152:30 pmTYS - FNC
2 stops20h 30mLufthansa
Sun 8/314:00 pmFNC - TYS
2 stops36h 57mLufthansa
Deal found 6/10$1,165
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/278:54 pmTYS - FNC
3 stops47h 21mMultiple Airlines
Sat 8/212:10 amFNC - TYS
3 stops40h 40mMultiple Airlines
Deal found 6/11$1,181
This Air Canada deal was found by Cheapflights users on 6/10. 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.
Fri 8/159:55 amTYS - FNC
3 stops22h 30mAir Canada
Sun 8/319:25 amFNC - TYS
3 stops19h 32mAir Canada
Deal found 6/10$2,188

Cheapflights Fare Finder

Customize your flight search to find flights from Knoxville to Portugal 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 June 12, 2025.
Use the filters below to find and compare flights from Knoxville to Portugal that are best for you.

Fly from

Knoxville

Fly to

Portugal

Route

Depart

Return

Price

KnoxvilleLisbon

TYS - LIS

TYSLIS

Knoxville McGhee Tyson

Fri 10/24

7:00 am-8:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Tue 11/4

5:00 am-11:59 pm

2 stops23h 59m

$647

KnoxvilleLisbon

TYS - LIS

TYSLIS

Knoxville McGhee Tyson

Fri 10/24

4:01 pm-9:05 am

1 stop12h 04m

Lisbon Humberto Delgado

Tue 11/4

6:30 am-9:31 pm

2 stops20h 01m

$677

KnoxvilleLisbon

TYS - LIS

TYSLIS

Knoxville McGhee Tyson

Sat 10/4

7:10 am-5:30 am

1 stop17h 20m

Lisbon Humberto Delgado

Wed 10/15

6:25 am-2:30 pm

2 stops37h 05m

$774

KnoxvilleLisbon

TYS - LIS

TYSLIS

Knoxville McGhee Tyson

Sat 10/4

7:16 am-9:05 am

1 stop20h 49m

Lisbon Humberto Delgado

Thu 10/16

6:35 am-6:59 pm

2 stops17h 24m

$836

KnoxvilleLisbon

TYS - LIS

TYSLIS

Knoxville McGhee Tyson

Tue 7/1

9:55 am-9:50 pm

2 stops30h 55m

Lisbon Humberto Delgado

Tue 7/8

5:05 am-11:59 pm

2 stops23h 54m

$905

KnoxvilleLisbon

TYS - LIS

TYSLIS

Knoxville McGhee Tyson

Sun 7/6

5:45 am-11:05 am

2 stops24h 20m

Lisbon Humberto Delgado

Mon 7/14

11:25 am-2:58 pm

2 stops32h 33m

$1,125

KnoxvilleFunchal

TYS - FNC

TYSFNC

Knoxville McGhee Tyson

Fri 8/15

2:30 pm-4:00 pm

2 stops20h 30m

Funchal Madeira

Sun 8/31

4:00 pm-11:57 pm

2 stops36h 57m

$1,165

KnoxvilleFunchal

TYS - FNC

TYSFNC

Knoxville McGhee Tyson

Sun 7/27

8:54 pm-1:15 am

3 stops47h 21m

Funchal Madeira

Sat 8/2

12:10 am-11:50 am

3 stops40h 40m

$1,181

KnoxvilleFunchal

TYS - FNC

TYSFNC

Knoxville McGhee Tyson

Fri 8/15

9:55 am-1:25 pm

3 stops22h 30m

Funchal Madeira

Sun 8/31

9:25 am-11:57 pm

3 stops19h 32m

$2,188

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Knoxville to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Knoxville with our price prediction graph.
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 Portugal

What is the cheapest month to book a flight from Knoxville to Portugal?

Currently, January is the cheapest month in which you can book a flight from Knoxville to Portugal (average of $612). Flying from Knoxville to Portugal in June is currently the most expensive (average of $1,136). 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.

What is the cheapest time of day to fly from TYS to PT?

Find hourly flight availability from Knoxville to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to Portugal as you normally would.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Air France, United Airlines and American Airlines from Knoxville to Portugal. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.5
Good
1,463 reviews

Overall

7.5

Entertainment

7.0

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.5
Good
1,463 reviews
Air France
7.5
Good
1,463 reviews

Overall

7.5

Entertainment

7.0

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
United Airlines
7.4
Good
8,790 reviews
Air France
7.5
Good
1,463 reviews

Overall

7.5

Entertainment

7.0

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
American Airlines
7.2
Good
10,000 reviews
Air France
7.5
Good
1,463 reviews

Overall

7.5

Entertainment

7.0

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air Canada
7.1
Good
9,531 reviews
Air France
7.5
Good
1,463 reviews

Overall

7.5

Entertainment

7.0

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Lufthansa
6.8
Okay
7,136 reviews
Air France
7.5
Good
1,463 reviews

Overall

7.5

Entertainment

7.0

Food

7.0

Boarding

7.4

Comfort

7.4

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Knoxville to Portugal?

    For a flight from Knoxville to Portugal, you will be flying from McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city.

  • What are the most popular routes from Knoxville to Portugal?

    The most popular flight routes from Knoxville to Portugal are Knoxville McGhee Tyson - Lisbon Humberto Delgado, Knoxville McGhee Tyson - Funchal Madeira and Knoxville McGhee Tyson - Faro.

  • Can I find deals for flights from Knoxville to Portugal that include hotel bookings?

    Yes. In addition to deals on Knoxville to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Portugal.

  • Can I find deals for business class flights from Knoxville to Portugal?

    Yes. Cheapflights offers flight deals from Knoxville to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Knoxville to Portugal (average of $612). Flying from Knoxville to Portugal in June is currently the most expensive (average of $1,136). 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.

See more FAQs

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Top 3 airlines flying from Knoxville to Portugal

Discover the top 3 airlines that operate flights from Knoxville to Portugal. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$589Average$881FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$602Average$1,061FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$603Average$881FlexibilityNo cancel feeOn-time69%

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