What is the cheapest airline that flies from Louisiana to Porto?

United Airlines is the most popular carrier operating from Louisiana to Porto

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

Prices for flights from Louisiana to Porto Airport refresh daily.

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

The number of operators available for flights from Louisiana to Porto Airport is 1 as of December 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisiana to Porto Airport.

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

The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$266 Cheap Flights from Louisiana to Porto in 2025/26

1 adult

0 bags

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Find the cheapest flights from Louisiana to Porto

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 9:30 am

MSY

OPO

19h 30m2 stops

6:00 am - 8:34 am

OPO

MSY

31h 34m2 stops

$491United Airlines

Sat, Feb 21 - Thu, Mar 12

7:37 am - 10:25 am

MSY

OPO

20h 48m2 stops

5:00 am - 8:42 am

OPO

MSY

32h 42m2 stops

$493Delta

Thu, Feb 19 - Fri, Mar 13

3:59 pm - 11:40 pm

MSY

OPO

49h 41m2 stops

6:00 am - 6:13 pm

OPO

MSY

41h 13m2 stops

$494Lufthansa

Fri, Feb 20 - Thu, Mar 12

12:17 pm - 10:30 am

MSY

OPO

40h 13m2 stops

11:15 am - 7:02 pm

OPO

MSY

36h 47m2 stops

$495Delta

Sat, Feb 21 - Sat, Mar 14

3:59 pm - 9:30 am

MSY

OPO

35h 31m2 stops

6:00 am - 7:48 pm

OPO

MSY

18h 48m2 stops

$496United Airlines

Fri, Feb 20 - Fri, Mar 13

7:37 am - 10:25 am

MSY

OPO

20h 48m2 stops

5:00 am - 10:36 am

OPO

MSY

34h 36m2 stops

$498Delta

Thu, Feb 19 - Sun, Mar 15

2:40 pm - 10:20 pm

MSY

OPO

25h 40m2 stops

11:15 am - 7:02 pm

OPO

MSY

36h 47m2 stops

$499Delta

Fri, Feb 20 - Sat, Mar 14

10:35 am - 9:30 am

MSY

OPO

16h 55m2 stops

12:35 pm - 11:28 pm

OPO

MSY

16h 53m2 stops

$500United Airlines

Thu, Feb 26 - Mon, Mar 2

3:59 pm - 11:40 pm

MSY

OPO

49h 41m2 stops

12:35 pm - 11:59 pm

OPO

MSY

16h 24m1 stop

$503Lufthansa

Fri, Feb 20 - Thu, Mar 12

3:59 pm - 2:55 pm

MSY

OPO

16h 56m2 stops

12:35 pm - 11:59 pm

OPO

MSY

16h 24m1 stop

$515Lufthansa

Mon, Feb 23 - Thu, Mar 12

United Airlines flights from Louisiana to Porto

Our best United Airlines deals on Louisiana to Porto flight tickets

United Airlines

Feb 21

MSY8:00 amNew Orleans Louis Armstrong

19h 30m

2 stops

OPO9:30 amPorto

Mar 12

OPO6:00 amPorto

31h 34m

2 stops

MSY8:34 amNew Orleans Louis Armstrong

$491

Find similar

United Airlines

Feb 20

MSY3:59 pmNew Orleans Louis Armstrong

35h 31m

2 stops

OPO9:30 amPorto

Mar 13

OPO6:00 amPorto

18h 48m

2 stops

MSY7:48 pmNew Orleans Louis Armstrong

$496

Find similar

United Airlines

Feb 26

MSY10:35 amNew Orleans Louis Armstrong

16h 55m

2 stops

OPO9:30 amPorto

Mar 2

OPO12:35 pmPorto

16h 53m

2 stops

MSY11:28 pmNew Orleans Louis Armstrong

$500

Find similar

Delta flights from Louisiana to Porto

Our best Delta deals on Louisiana to Porto flight tickets

Delta

Feb 19

MSY7:37 amNew Orleans Louis Armstrong

20h 48m

2 stops

OPO10:25 amPorto

Mar 13

OPO5:00 amPorto

32h 42m

2 stops

MSY8:42 amNew Orleans Louis Armstrong

$493

Find similar

Delta

Feb 21

MSY12:17 pmNew Orleans Louis Armstrong

40h 13m

2 stops

OPO10:30 amPorto

Mar 14

OPO11:15 amPorto

36h 47m

2 stops

MSY7:02 pmNew Orleans Louis Armstrong

$495

Find similar

Delta

Feb 19

MSY7:37 amNew Orleans Louis Armstrong

20h 48m

2 stops

OPO10:25 amPorto

Mar 15

OPO5:00 amPorto

34h 36m

2 stops

MSY10:36 amNew Orleans Louis Armstrong

$498

Find similar

Fly from

Fly to

Route

Depart

Return

Price

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Sat 2/21

8:00 am-9:30 am

2 stops19h 30m

Porto

Thu 3/12

6:00 am-8:34 am

2 stops31h 34m

$491

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Thu 2/19

7:37 am-10:25 am

2 stops20h 48m

Porto

Fri 3/13

5:00 am-8:42 am

2 stops32h 42m

$493

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Fri 2/20

3:59 pm-11:40 pm

2 stops49h 41m

Porto

Thu 3/12

6:00 am-6:13 pm

2 stops41h 13m

$494

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Sat 2/21

12:17 pm-10:30 am

2 stops40h 13m

Porto

Sat 3/14

11:15 am-7:02 pm

2 stops36h 47m

$495

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Fri 2/20

3:59 pm-9:30 am

2 stops35h 31m

Porto

Fri 3/13

6:00 am-7:48 pm

2 stops18h 48m

$496

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Thu 2/19

7:37 am-10:25 am

2 stops20h 48m

Porto

Sun 3/15

5:00 am-10:36 am

2 stops34h 36m

$498

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Fri 2/20

2:40 pm-10:20 pm

2 stops25h 40m

Porto

Sat 3/14

11:15 am-7:02 pm

2 stops36h 47m

$499

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Thu 2/26

10:35 am-9:30 am

2 stops16h 55m

Porto

Mon 3/2

12:35 pm-11:28 pm

2 stops16h 53m

$500

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Fri 2/20

3:59 pm-11:40 pm

2 stops49h 41m

Porto

Thu 3/12

12:35 pm-11:59 pm

1 stop16h 24m

$503

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Mon 2/23

3:59 pm-2:55 pm

2 stops16h 56m

Porto

Thu 3/12

12:35 pm-11:59 pm

1 stop16h 24m

$515

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisiana 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 day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Thursday when prices can be found for as low as $574. 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 Tuesday because tickets tend to average around $1,186. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

Can stopping save me money on Louisiana to Porto flights?

You could potentially save up to 2% on your flight if you consider stops on a Louisiana to Porto flight.

Cheap Louisiana to Porto flight deals and tips

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

Fastest flight time	14h 42m
Direct flights	None

The fastest flight from Louisiana to Porto takes 14h 42m

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

Search flight deals

When did momondo last update prices for flights from Louisiana to Porto Airport?
Prices for flights from Louisiana to Porto Airport refresh daily.
How many operators does momondo search for flights from Louisiana to Porto Airport?
The number of operators available for flights from Louisiana to Porto Airport is 1 as of December 2025.
How old do you have to be to fly from Louisiana to Porto Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisiana to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Louisiana to Porto

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 9,113 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 Louisiana to Porto?

It is quick and easy to find Louisiana to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

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

Yes. momondo enables you to select and highlight flights to Porto from Louisiana with this policy.

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

Once you have performed a search for Louisiana 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 Louisiana to Porto right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisiana to Porto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto and let you know when they change.