Which airports can I use when flying from Knoxville to Porto?

Flights from Knoxville to Porto usually depart from Knoxville McGhee Tyson (TYS) and arrive at Porto (OPO).

What cabin classes can I book on flights from Knoxville to Porto?

Only Economy Class is available on flights from Knoxville to Porto.

Can I save money by using flexible dates for flights from Knoxville to Porto?

Yes. Being flexible with your travel dates can save you up to 25% on the Knoxville to Porto route. Wednesday is the cheapest departure day at $876 round-trip on average, while Monday is the most expensive at $1,164, a difference of $288. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Porto?

Some of the most popular sights in Porto are Ribeira Square, Mercado do Bolhão and Avenida dos Aliados. These are among the most viewed places in Porto on KAYAK.

Do I need a passport to fly from Knoxville to Porto?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from Knoxville to Porto looking right now?

One-way fares from Knoxville to Porto are currently higher than usual. Average one-way flight prices are about $805, which is 57% above the typical average for this route.

What is the time difference between Knoxville and Porto?

Porto is 5 hours ahead of Knoxville (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Porto Airport (OPO)?

Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include: • Klass Wagen • Drive on Holiday • GREEN MOTION • Goldcar Rental SP • SURPRICE CAR RENTAL

How much should I expect to pay for a Knoxville to Porto flight?

Round-trip flights from Knoxville to Porto range from $801 to $1,060, with an average of $934 over the past 12 months. Anything below $801 counts as a good deal.

$529 CHEAP FLIGHTS from Knoxville to Porto (TYS - OPO)

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Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$609

Typical prices: $801-$1,060

Air France, KLM

Sat 10/27Sat 11/3

TYS - OPO • 2 stops

Cheapest one-way

$529

Typical prices: $512-$807

Multiple Airlines

Mon 10/1

TYS - OPO • 2 stops

When to travel

January

Cheapest • 45% price drop

April

Most popular

Good to know

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We hope you love your trip to Porto!

Flight Deals

Cheap Flights from Knoxville to Porto (TYS-OPO)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Knoxville to Porto

Tue, Oct 27 - Tue, Nov 3

4:11 pm - 10:35 amTYS Knoxville McGhee Tyson-OPO Porto

14h 24m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 7:49 pmOPO Porto-TYS Knoxville McGhee Tyson

19h 49m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$609Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

4:11 pm - 10:00 pmTYS Knoxville McGhee Tyson-OPO Porto

25h 49m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:55 am - 7:49 pmOPO Porto-TYS Knoxville McGhee Tyson

18h 54m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County

$609Air France

Tue, Oct 27 - Tue, Nov 3

2:38 pm - 10:30 amTYS Knoxville McGhee Tyson-OPO Porto

15h 52m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

5:55 am - 10:02 pmOPO Porto-TYS Knoxville McGhee Tyson

21h 07m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$621Multiple Airlines

Wed, Oct 14 - Thu, Oct 29

5:18 pm - 3:25 pmTYS Knoxville McGhee Tyson-OPO Porto

17h 07m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:55 am - 11:02 pmOPO Porto-TYS Knoxville McGhee Tyson

21h 07m2 stops Paris Charles de Gaulle Minneapolis St Paul

$663Delta

Tue, Oct 27 - Tue, Nov 3

4:30 pm - 9:30 amTYS Knoxville McGhee Tyson-OPO Porto

13h 00m1 stop Newark

6:00 am - 9:53 amOPO Porto-TYS Knoxville McGhee Tyson

32h 53m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Sat, Oct 31 - Sat, Nov 7

4:30 pm - 9:30 amTYS Knoxville McGhee Tyson-OPO Porto

13h 00m1 stop Newark

6:00 am - 11:30 amOPO Porto-TYS Knoxville McGhee Tyson

34h 30m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$706United Airlines

Sat, Oct 31 - Sat, Nov 7

6:45 am - 9:30 amTYS Knoxville McGhee Tyson-OPO Porto

22h 45m2 stops Chicago O'Hare Intl Newark

6:00 am - 11:30 amOPO Porto-TYS Knoxville McGhee Tyson

34h 30m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$711United Airlines

Thu, Mar 4 - Sat, Mar 13

7:00 am - 9:30 amTYS Knoxville McGhee Tyson-OPO Porto

45h 30m2 stops Chicago O'Hare Intl Newark

6:00 am - 8:34 amOPO Porto-TYS Knoxville McGhee Tyson

31h 34m2 stops Frankfurt am Main Chicago O'Hare Intl

$721United Airlines

Tue, Oct 27 - Tue, Nov 3

4:30 pm - 9:30 amTYS Knoxville McGhee Tyson-OPO Porto

13h 00m1 stop Newark

6:00 am - 8:54 pmOPO Porto-TYS Knoxville McGhee Tyson

19h 54m2 stops Frankfurt am Main Chicago O'Hare Intl

$726Lufthansa

Wed, Mar 3 - Sat, Mar 20

8:30 am - 9:30 amTYS Knoxville McGhee Tyson-OPO Porto

20h 00m1 stop Newark

12:30 pm - 9:34 amOPO Porto-TYS Knoxville McGhee Tyson

49h 04m2 stops Frankfurt am Main Chicago O'Hare Intl

$744United Airlines

Booking Insights

Price, demand and travel trends for Knoxville to Porto flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Knoxville to Porto with more confidence.

What is the cheapest airline to fly from Knoxville to Porto?

Air France ($609) and Delta ($663) are the cheapest airlines to fly round-trip from Knoxville to Porto according to KAYAK data over the last 5 days.

Find deals

Low season	November
High season	April
Cheapest flight	$529

Most popular time to fly and prices are also 6% lower on average.

Flight from Knoxville to Porto

When to book flights from Knoxville to Porto

Are your dates flexible? Find out the best times to travel from Knoxville to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Knoxville to Porto?
Flights from Knoxville to Porto usually depart from Knoxville McGhee Tyson (TYS) and arrive at Porto (OPO).
What cabin classes can I book on flights from Knoxville to Porto?
Only Economy Class is available on flights from Knoxville to Porto.
Can I save money by using flexible dates for flights from Knoxville to Porto?
Yes. Being flexible with your travel dates can save you up to 25% on the Knoxville to Porto route. Wednesday is the cheapest departure day at $876 round-trip on average, while Monday is the most expensive at $1,164, a difference of $288. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What popular places can I visit in Porto?
Some of the most popular sights in Porto are Ribeira Square, Mercado do Bolhão and Avenida dos Aliados. These are among the most viewed places in Porto on KAYAK.
Do I need a passport to fly from Knoxville to Porto?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How are flight prices from Knoxville to Porto looking right now?
One-way fares from Knoxville to Porto are currently higher than usual. Average one-way flight prices are about $805, which is 57% above the typical average for this route.
What is the time difference between Knoxville and Porto?
Porto is 5 hours ahead of Knoxville (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Porto Airport (OPO)?
Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:
• Klass Wagen
• Drive on Holiday
• GREEN MOTION
• Goldcar Rental SP
• SURPRICE CAR RENTAL
How much should I expect to pay for a Knoxville to Porto flight?
Round-trip flights from Knoxville to Porto range from $801 to $1,060, with an average of $934 over the past 12 months. Anything below $801 counts as a good deal.

If your dates can be flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average $876 - about $288 less than Monday (25% savings) based on the last 12 months.
If you can choose when to travel, plan your Knoxville to Porto trip for January. Fares historically average $509 round-trip in that month - typically $693 less than the most expensive month, which is September (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.
- Opo Hotel Porto Aeroporto

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TYS - OPO

$529 Find Cheap Flights from Knoxville to Porto - Compare and Save

Everything you should know

Cheap Flights from Knoxville to Porto (TYS-OPO)

Recent round-trip flight deals from Knoxville to Porto

Recent one-way flight deals from Knoxville to Porto

Price, demand and travel trends for Knoxville to Porto flights

What is the cheapest airline to fly from Knoxville to Porto?

Key details for Knoxville to Porto flights

Low season

High season

Cheapest flight

When to book flights from Knoxville to Porto

Your Knoxville to Porto flight questions, answered

Your guide to booking Knoxville to Porto flights

More options for your flight from Knoxville to Porto

Complete your trip to Porto with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Knoxville to Porto

Find direct flights to and from Knoxville and Porto

Flights from domestic origins to Porto

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