What airlines fly to Porto?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Porto from Nashville according to our data. United Airlines is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 3 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Nashville Intl Airport to Porto Airport?

Prices for flights from Nashville Intl Airport to Porto Airport refresh daily.

How many operators does momondo search for flights from Nashville Intl Airport to Porto Airport?

As of December 2025, there are 3 operators available to choose from for flights from Nashville Intl Airport to Porto Airport.

How old do you have to be to fly from Nashville Intl Airport to Porto Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Nashville Intl Airport to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$489 Cheap Flights from Nashville to Porto in 2025/26

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Find the cheapest flights from Nashville to Porto

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 9:30 am

BNA

OPO

21h 00m2 stops

6:00 am - 9:21 am

OPO

BNA

32h 21m2 stops

$491United Airlines

Sun, Mar 8 - Tue, Mar 17

6:19 pm - 9:30 am

BNA

OPO

33h 11m2 stops

6:00 am - 9:21 am

OPO

BNA

32h 21m2 stops

$496United Airlines

Sat, Mar 7 - Mon, Mar 16

10:43 am - 2:45 pm

BNA

OPO

22h 02m2 stops

6:00 am - 7:50 pm

OPO

BNA

43h 50m2 stops

$503United Airlines

Thu, Feb 5 - Thu, Feb 12

7:30 am - 9:30 am

BNA

OPO

21h 00m2 stops

12:35 pm - 3:51 pm

OPO

BNA

32h 16m3 stops

$510United Airlines

Sun, Mar 8 - Tue, Mar 17

7:30 am - 9:30 am

BNA

OPO

21h 00m2 stops

12:30 pm - 5:23 pm

OPO

BNA

33h 53m2 stops

$511United Airlines

Sun, Mar 8 - Sun, Mar 15

6:19 pm - 9:30 am

BNA

OPO

33h 11m2 stops

12:35 pm - 3:51 pm

OPO

BNA

32h 16m3 stops

$515United Airlines

Sat, Mar 7 - Tue, Mar 17

6:19 pm - 9:30 am

BNA

OPO

33h 11m2 stops

12:30 pm - 5:23 pm

OPO

BNA

33h 53m2 stops

$516United Airlines

Sat, Mar 7 - Sun, Mar 15

10:58 am - 7:40 am

BNA

OPO

14h 42m2 stops

8:40 pm - 4:50 pm

OPO

BNA

26h 10m2 stops

$589Iberia

Tue, Apr 21 - Tue, Apr 28

7:30 am - 2:45 pm

BNA

OPO

25h 15m2 stops

6:00 am - 1:46 pm

OPO

BNA

36h 46m2 stops

$606United Airlines

Fri, Mar 6 - Fri, Mar 13

6:19 pm - 3:15 pm

BNA

OPO

38h 56m2 stops

12:35 pm - 10:50 pm

OPO

BNA

15h 15m1 stop

$611Lufthansa

Sat, Mar 7 - Tue, Mar 17

Iberia flights from Nashville to Porto

Our best Iberia deals on Nashville to Porto flight tickets

Iberia

Apr 21

BNA10:58 amNashville Intl

14h 42m

2 stops

OPO7:40 amPorto

Apr 28

OPO8:40 pmPorto

26h 10m

2 stops

BNA4:50 pmNashville Intl

$589

Find similar

Iberia

Apr 28

BNA2:27 pmNashville Intl

15h 18m

2 stops

OPO11:45 amPorto

May 18

OPO8:40 pmPorto

29h 38m

2 stops

BNA8:18 pmNashville Intl

$714

Find similar

Delta flights from Nashville to Porto

Our best Delta deals on Nashville to Porto flight tickets

Delta

Mar 8

BNA6:00 amNashville Intl

23h 30m

2 stops

OPO10:30 amPorto

Mar 14

OPO11:25 amPorto

33h 54m

2 stops

BNA4:19 pmNashville Intl

$802

Find similar

Delta

Feb 22

BNA9:23 amNashville Intl

19h 07m

2 stops

OPO10:30 amPorto

Feb 26

OPO5:00 amPorto

23h 58m

2 stops

BNA10:58 pmNashville Intl

$1,076

Find similar

Delta

Mar 8

BNA6:00 amNashville Intl

23h 30m

2 stops

OPO10:30 amPorto

Mar 13

OPO5:00 amPorto

16h 58m

2 stops

BNA4:58 pmNashville Intl

$1,082

Find similar

Fly from

Fly to

Route

Depart

Return

Price

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 3/8

7:30 am-9:30 am

2 stops21h 00m

Porto

Tue 3/17

6:00 am-9:21 am

2 stops32h 21m

$491

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 3/7

6:19 pm-9:30 am

2 stops33h 11m

Porto

Mon 3/16

6:00 am-9:21 am

2 stops32h 21m

$496

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Thu 2/5

10:43 am-2:45 pm

2 stops22h 02m

Porto

Thu 2/12

6:00 am-7:50 pm

2 stops43h 50m

$503

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 3/8

7:30 am-9:30 am

2 stops21h 00m

Porto

Tue 3/17

12:35 pm-3:51 pm

3 stops32h 16m

$510

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sun 3/8

7:30 am-9:30 am

2 stops21h 00m

Porto

Sun 3/15

12:30 pm-5:23 pm

2 stops33h 53m

$511

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 3/7

6:19 pm-9:30 am

2 stops33h 11m

Porto

Tue 3/17

12:35 pm-3:51 pm

3 stops32h 16m

$515

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 3/7

6:19 pm-9:30 am

2 stops33h 11m

Porto

Sun 3/15

12:30 pm-5:23 pm

2 stops33h 53m

$516

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Tue 4/21

10:58 am-7:40 am

2 stops14h 42m

Porto

Tue 4/28

8:40 pm-4:50 pm

2 stops26h 10m

$589

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Fri 3/6

7:30 am-2:45 pm

2 stops25h 15m

Porto

Fri 3/13

6:00 am-1:46 pm

2 stops36h 46m

$606

NashvillePorto

BNA - OPO

BNAOPO

Nashville Intl

Sat 3/7

6:19 pm-3:15 pm

2 stops38h 56m

Porto

Tue 3/17

12:35 pm-10:50 pm

1 stop15h 15m

$611

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Nashville to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Nashville, with most prices found around $612. If you aren’t able to travel during the month of January, then book flights to Porto from Nashville during March instead. Flights to Porto in March, while not as cheap as those in January, still average around $647.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Monday when prices can be found for as low as $949. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,375. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the morning is the cheapest time of day to fly from Nashville to Porto when you can find flight prices for as low as $988. Flying to Porto in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,352 on average. Flights to Porto from Nashville in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Nashville to Porto flights?

You could potentially save up to 41% on your flight if you consider stops on a Nashville to Porto flight.

When to book flights from Nashville to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Nashville to Porto according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Nashville to Porto (BNA to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Nashville to Porto

Fastest flight time	15h 40m
Direct flights	None

The fastest flight from Nashville to Porto takes 15h 40m

There are no direct flights from Nashville to Porto. There are no popular flight routes from Nashville to Porto.

Search flight deals

How far is Nashville Intl to Porto by plane?
Porto is 4082.3 mi away from Nashville Intl. 15h 40m is a normal flight duration for this route.
When did momondo last update prices for flights from Nashville Intl Airport to Porto Airport?
Prices for flights from Nashville Intl Airport to Porto Airport refresh daily.
How many operators does momondo search for flights from Nashville Intl Airport to Porto Airport?
As of December 2025, there are 3 operators available to choose from for flights from Nashville Intl Airport to Porto Airport.
How old do you have to be to fly from Nashville Intl Airport to Porto Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Nashville Intl Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Nashville to Porto?
momondo data reveals that the most frequently booked airline on the route from Nashville to Porto is United Airlines, representing 69% of all bookings. The subsequent popular airlines are American Airlines at 17% and Delta at 14%.

Best airlines flying from Nashville to Porto

Compare and see reviews for airlines that fly from Nashville to Porto with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $568	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Delta	PriceFrom $647	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
United Airlines	PriceFrom $755	Free Cancellation	Rating 7.4 9,105 reviews	Search United Airlines flights

Vila Nova de Gaia

Coimbra

Braga

Aveiro

Matosinhos

Guimarães

Esposende

Lamego

Chaves

Viseu

Espinho

Arcos de Valdevez

Pinhao

Ponte de Lima

Curia

Penafiel

Mesao Frio

Mira

Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Nashville to Porto?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Nashville to Porto for you.

Can I find flights from Nashville to Porto with flexible booking policies on momondo?

All flight searches from Nashville to Porto on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Nashville to Porto?

Once you have performed a search for Nashville to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Nashville to Porto right now. Can momondo alert me if prices change?

Price alerts on flights to Porto from Nashville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.