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Porto

$426+ Cheap flights from Nashville (BNA) to Porto (OPO)

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — OPO
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Cheap flight deals from Nashville to Porto

Cheapest flights from Nashville to Porto
Explore the most affordable flight options available from Nashville to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This Rumbo 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:11 am
BNA
-
OPO
2 stops43h 34m
Scandinavian Airlines
Fri 5/85:55 pm
OPO
-
BNA
2 stops32h 10m
Scandinavian Airlines
Deal found 3/7$594
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:24 pm
BNA
-
OPO
2 stops41h 21m
British Airways
Mon 11/98:40 pm
OPO
-
BNA
2 stops26h 51m
British Airways
Deal found 3/9$628
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:40 pm
BNA
-
OPO
1 stop16h 25m
Multiple Airlines
Wed 10/288:40 pm
OPO
-
BNA
2 stops29h 21m
Multiple Airlines
Deal found 3/7$651
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 10/139:04 am
BNA
-
OPO
2 stops16h 36m
American Airlines
Tue 10/278:20 am
OPO
-
BNA
2 stops18h 51m
American Airlines
Deal found 3/7$655
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.
Wed 10/146:40 pm
BNA
-
OPO
2 stops15h 20m
American Airlines
Wed 10/288:40 pm
OPO
-
BNA
2 stops20h 16m
American Airlines
Deal found 3/7$661
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:40 pm
BNA
-
OPO
1 stop16h 25m
British Airways
Wed 10/288:40 pm
OPO
-
BNA
2 stops29h 21m
British Airways
Deal found 3/7$662
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:10 am
BNA
-
OPO
2 stops33h 15m
Multiple Airlines
Tue 4/286:00 am
OPO
-
BNA
2 stops19h 54m
Multiple Airlines
Deal found 3/9$665
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:23 am
BNA
-
OPO
2 stops18h 22m
Iberia
Tue 4/2812:25 pm
OPO
-
BNA
2 stops17h 23m
Iberia
Deal found 3/6$668
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:15 am
BNA
-
OPO
1 stop16h 45m
Multiple Airlines
Tue 10/277:20 pm
OPO
-
BNA
2 stops48h 45m
Multiple Airlines
Deal found 3/7$687
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/82:49 pm
BNA
-
OPO
2 stops18h 51m
United Airlines
Tue 4/1412:35 pm
OPO
-
BNA
2 stops26h 27m
United Airlines
Deal found 3/5$689
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:40 pm
BNA
-
OPO
1 stop17h 10m
British Airways
Fri 10/168:20 am
OPO
-
BNA
2 stops21h 17m
British Airways
Deal found 3/6$698
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:12 pm
BNA
-
OPO
2 stops15h 33m
Iberia
Fri 10/168:20 am
OPO
-
BNA
2 stops21h 17m
Iberia
Deal found 3/6$702

Find flight deals from Nashville to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Nashville (BNA) to Porto (OPO). 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.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$594
(Rumbo)

One-way from

$426
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$647
Provider with most accurate pricing for Nashville Intl-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Nashville Intl-Porto flights.
Search Deals
From Nashville Intl to Porto
Search Deals
One-way flight from Nashville Intl to Porto
Search Deals
Highest demand for flights based on searches. 45% potential increase in price ($1,080 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 35% potential price decrease ($336 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Nashville to Porto 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 Nashville to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 4/8

2:49 pm-3:40 pm

2 stops18h 51m

Porto

Tue 4/14

12:35 pm-9:02 am

2 stops26h 27m

$689

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 4/8

2:02 pm-3:25 pm

2 stops19h 23m

Porto

Tue 4/14

5:00 am-10:16 pm

2 stops23h 16m

$711

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 4/23

7:42 am-9:45 am

1 stop20h 03m

Porto

Fri 5/8

12:35 pm-1:02 pm

1 stop30h 27m

$806

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 3/30

2:01 pm-3:25 pm

2 stops19h 24m

Porto

Tue 4/14

5:00 am-5:48 pm

2 stops18h 48m

$808

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 3/31

4:34 pm-3:25 pm

2 stops16h 51m

Porto

Tue 4/7

5:00 am-9:10 pm

2 stops22h 10m

$863

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 5/16

11:23 am-8:35 pm

2 stops51h 12m

Porto

Sat 7/18

12:25 pm-12:25 am

2 stops18h 00m

$1,001

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 5/16

6:02 pm-6:10 pm

2 stops18h 08m

Porto

Sun 5/24

5:55 am-5:07 pm

2 stops17h 12m

$1,070

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 6/3

8:15 am-7:00 am

1 stop16h 45m

Porto

Wed 6/10

9:00 am-4:32 pm

1 stop13h 32m

$1,081

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 5/23

9:48 am-6:55 am

2 stops15h 07m

Porto

Mon 6/8

11:15 am-8:54 pm

1 stop15h 39m

$1,170

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 3/17

7:25 pm-5:45 pm

1 stop17h 20m

Porto

Sun 3/29

9:30 pm-6:20 pm

1 stop26h 50m

$1,176

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Nashville to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Nashville to Porto in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Nashville-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Nashville-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Nashville-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Nashville-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Nashville-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Nashville to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Nashville 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 Nashville to Porto

What is the cheapest month to book a flight from Nashville to Porto?

Currently, February is the cheapest month in which you can book a flight from Nashville to Porto (average of $484). Flying from Nashville to Porto in January is currently the most expensive (average of $4,977). 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.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated March 10, 2026.
Read through reviews of airlines operating flights from Nashville to Porto, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,276 reviews

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,276 reviews
Delta
7.9
Good
8,276 reviews

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,409 reviews
Delta
7.9
Good
8,276 reviews

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Nashville to Porto?

    A quick flight from Nashville to Porto can take about 18h 51m. United Airlines provides one of the quickest options available for as low as $689. The distance between Nashville and Porto is about 4074 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Nashville to Porto round-trip?

    Currently priced at $647, Delta will fly you from Nashville to Porto and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $755. These flights start at 49% lower than the current average price 3 months from now.

  • Can I find deals for flights from Nashville to Porto that include hotel bookings?

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

  • How can I find direct flights from Nashville to Porto?

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

  • Can I find deals for business class flights from Nashville to Porto?

    Yes. Cheapflights offers flight deals from Nashville to Porto 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 Nashville to Porto?

    Currently, February is the cheapest month in which you can book a flight from Nashville to Porto (average of $484). Flying from Nashville to Porto in January is currently the most expensive (average of $4,977). 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

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Nashville to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Nashville to Porto

Discover the top 2 airlines that operate flights from Nashville to Porto. 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.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$647Average$792FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$755Average$1,108FlexibilityNo cancel feeOn-time69%

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