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$400+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — OPO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$492
(United Airlines)

One-way from

$400
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$986
Provider with most accurate pricing for Nashville Intl-Porto flight deals.
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Provider most trusted by Cheapflights users for Nashville Intl-Porto flights.
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From Nashville Intl to Porto
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One-way flight from Nashville Intl to Porto
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Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:50 pmBNA - OPO
2 stops28h 50mLufthansa
Wed 12/36:00 amOPO - BNA
2 stops19h 50mLufthansa
Deal found 10/30$621
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/263:33 pmBNA - OPO
1 stop11h 57mUnited Airlines
Wed 12/36:00 amOPO - BNA
2 stops33h 03mUnited Airlines
Deal found 10/30$633
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/244:03 pmBNA - OPO
1 stop11h 27mUnited Airlines
Tue 12/212:30 pmOPO - BNA
2 stops37h 00mUnited Airlines
Deal found 10/30$652
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/231:36 pmBNA - OPO
2 stops13h 54mUnited Airlines
Tue 12/212:30 pmOPO - BNA
2 stops37h 00mUnited Airlines
Deal found 10/30$657
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/111:30 pmBNA - OPO
2 stops16h 10mUnited Airlines
Tue 12/2312:30 pmOPO - BNA
2 stops32h 35mUnited Airlines
Deal found 10/28$721
This Ovago deal was found by Cheapflights users on 10/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:45 pmBNA - OPO
2 stops27h 40mLufthansa
Tue 12/234:15 pmOPO - BNA
2 stops33h 16mLufthansa
Deal found 10/28$743
This Delta deal was found by Cheapflights users on 10/29. 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.
Thu 12/112:00 pmBNA - OPO
2 stops19h 15mDelta
Tue 12/2311:25 amOPO - BNA
2 stops16h 09mDelta
Deal found 10/29$807
This Mytrip deal was found by Cheapflights users on 10/30. 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.
Wed 11/2610:43 amBNA - OPO
3 stops30h 57mMultiple Airlines
Wed 12/36:00 amOPO - BNA
3 stops23h 42mMultiple Airlines
Deal found 10/30$810
This FlightHub deal was found by Cheapflights users on 10/30. 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.
Mon 11/242:25 pmBNA - OPO
2 stops15h 40mMultiple Airlines
Fri 11/286:30 amOPO - BNA
2 stops22h 50mMultiple Airlines
Deal found 10/30$864
This Delta deal was found by Cheapflights users on 10/30. 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.
Mon 11/2411:29 amBNA - OPO
2 stops17h 01mDelta
Wed 11/2611:15 amOPO - BNA
2 stops37h 18mDelta
Deal found 10/30$866

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 October 30, 2025.
Use the filters below to find and compare flights from Nashville to Porto that are best for you.

Fly from

Nashville

Fly to

Porto

Route

Depart

Return

Price

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 1/8

1:09 pm-12:05 pm

2 stops16h 56m

Porto

Fri 1/16

6:00 am-7:33 pm

2 stops19h 33m

$492

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 3/23

7:00 am-10:30 am

2 stops22h 30m

Porto

Mon 3/30

4:20 pm-4:39 pm

2 stops30h 19m

$609

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 11/26

3:33 pm-9:30 am

1 stop11h 57m

Porto

Wed 12/3

6:00 am-9:03 am

2 stops33h 03m

$633

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 3/23

4:18 pm-9:30 am

1 stop12h 12m

Porto

Mon 3/30

12:35 pm-7:15 pm

1 stop12h 40m

$643

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 3/24

4:18 pm-9:30 am

1 stop12h 12m

Porto

Mon 3/30

12:35 pm-7:15 pm

1 stop12h 40m

$643

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 11/25

3:18 pm-9:30 am

1 stop12h 12m

Porto

Tue 12/2

12:30 pm-7:30 pm

2 stops37h 00m

$652

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 3/22

7:25 pm-4:40 pm

1 stop16h 15m

Porto

Mon 3/30

9:10 pm-6:30 pm

1 stop27h 20m

$656

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 11/23

3:27 pm-9:30 am

1 stop12h 03m

Porto

Tue 12/2

12:30 pm-7:30 pm

2 stops37h 00m

$678

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 3/22

7:25 pm-4:40 pm

1 stop16h 15m

Porto

Sat 3/28

7:50 pm-6:30 pm

1 stop27h 40m

$706

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 4/9

6:05 pm-6:40 pm

2 stops42h 35m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 11 results
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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Nashville-Porto flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, March is the cheapest month in which you can book a flight from Nashville to Porto (average of $587). Flying from Nashville to Porto in December is currently the most expensive (average of $1,650). 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 BNA to OPO?

Find hourly flight availability from Nashville to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

One of the essential ways to save on airfare from Nashville to Porto is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 26% on airfare.

How much does it cost to fly round-trip from Nashville to Porto?

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 October 30, 2025.
Read through reviews of airlines operating flights from Nashville to Porto, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,035 reviews
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 11h 57m. Delta provides one of the quickest options available for as low as $633. 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 $568, American Airlines will fly you from Nashville to Porto and back. In addition to American Airlines, 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 44% 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, March is the cheapest month in which you can book a flight from Nashville to Porto (average of $587). Flying from Nashville to Porto in December is currently the most expensive (average of $1,650). 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
Aveiro
Arcos de Valdevez
Coimbra

Browse thousands of different options on Cheapflights for your next trip

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$568Average$642FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$755Average$1,171FlexibilityNo cancel feeOn-time69%

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