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$348+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
BNA — OPO
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
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 May 9, 2026.

This United Airlines deal was found by Cheapflights users on 5/8. 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.
Sun 12/610:00 am
BNA
-
OPO
1 stop17h 30m
United Airlines
Wed 12/96:00 am
OPO
-
BNA
2 stops19h 31m
United Airlines
Deal found 5/8$746
This United Airlines deal was found by Cheapflights users on 5/8. 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 9/298:15 am
BNA
-
OPO
1 stop16h 45m
United Airlines
Tue 10/612:15 pm
OPO
-
BNA
2 stops35h 59m
United Airlines
Deal found 5/8$828
This United Airlines deal was found by Cheapflights users on 5/8. 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 8/116:00 am
BNA
-
OPO
1 stop21h 45m
United Airlines
Thu 8/2011:50 am
OPO
-
BNA
1 stop33h 09m
United Airlines
Deal found 5/8$830
This Air Canada deal was found by Cheapflights users on 5/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:35 pm
BNA
-
OPO
2 stops54h 25m
Air Canada
Tue 8/2512:15 pm
OPO
-
BNA
2 stops33h 42m
Air Canada
Deal found 5/8$836
This United Airlines deal was found by Cheapflights users on 5/7. 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 9/213:58 pm
BNA
-
OPO
1 stop11h 47m
United Airlines
Wed 9/3012:45 pm
OPO
-
BNA
1 stop14h 09m
United Airlines
Deal found 5/7$842
This United Airlines deal was found by Cheapflights users on 5/8. 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.
Sun 8/169:56 am
BNA
-
OPO
2 stops17h 49m
United Airlines
Thu 8/2011:50 am
OPO
-
BNA
1 stop33h 09m
United Airlines
Deal found 5/8$847
This KAYAK deal was found by Cheapflights users on 5/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:37 pm
BNA
-
OPO
2 stops37h 13m
SWISS
Mon 8/247:20 pm
OPO
-
BNA
2 stops30h 46m
SWISS
Deal found 5/8$852

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 May 9, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$828
(United Airlines)

One-way from

$348
(United Airlines)

Popular in

January

Cheapest in

February

Average price

$1,076
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. 51% potential increase in price ($1,392 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 37% potential price decrease ($365 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 9, 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

Tue 9/29

8:15 am-7:00 am

1 stop16h 45m

Porto

Tue 10/6

12:15 pm-6:14 pm

2 stops35h 59m

$828

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 8/16

6:00 am-9:45 am

1 stop21h 45m

Porto

Tue 8/25

12:15 pm-2:59 pm

1 stop32h 44m

$830

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Mon 9/21

6:35 pm-7:00 am

2 stops30h 25m

Porto

Wed 9/30

6:00 am-8:54 pm

2 stops20h 54m

$842

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Fri 10/16

8:15 am-7:10 am

1 stop16h 55m

Porto

Sat 10/24

11:20 am-2:11 pm

2 stops32h 51m

$891

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 8/15

1:53 pm-10:20 am

1 stop14h 27m

Porto

Fri 8/21

5:00 am-10:25 pm

2 stops23h 25m

$902
Quickest round-trip

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Fri 8/21

8:15 am-7:00 am

1 stop16h 45m

Porto

Sat 8/29

11:20 am-8:49 pm

1 stop15h 29m

$961

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 7/9

10:00 am-10:30 am

1 stop18h 30m

Porto

Fri 7/17

12:45 pm-10:05 pm

1 stop15h 20m

$1,007

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 7/4

6:24 pm-6:50 am

2 stops30h 26m

Porto

Sat 7/18

10:15 am-8:49 pm

1 stop16h 34m

$1,014

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 7/28

12:38 pm-10:30 am

2 stops15h 52m

Porto

Mon 8/3

12:15 pm-11:03 pm

2 stops16h 48m

$1,021
Cheapest one-way

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Wed 10/28

8:30 am-9:30 am

2 stops20h 00m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 14 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 May.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Nashville-Porto flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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

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 May 9, 2026.
Read through reviews of airlines operating flights from Nashville to Porto, such as Delta,KLM, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,457 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,457 reviews
Delta
7.9
Good
8,457 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
KLM
7.8
Good
1,510 reviews
Delta
7.9
Good
8,457 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,693 reviews
Delta
7.9
Good
8,457 reviews

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 16h 45m. United Airlines provides one of the quickest options available for as low as $828. The distance between Nashville and Porto is about 4074 mi.

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

    Currently priced at $746, Delta will fly you from Nashville to Porto and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and KLM - these airlines can fly you to your destination from $751 and $792, respectively. 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.

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 3 airlines flying from Nashville to Porto

Discover the top 3 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 May 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$746Average$911FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$751Average$1,169FlexibilityNo cancel feeOn-time69%
KLMCheapest$792Average$792FlexibilityNo cancel feeOn-time75%

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