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Cheap flights from Louisiana to Porto from $584

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Louisiana to Porto departing on 11/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Louisiana to Porto

Cheap round-trip flights

United Airlines Logo
12:45 pm - 9:30 amMSY-OPO
14h 45m2 stops
United Airlines Logo
12:35 pm - 8:52 amOPO-MSY
26h 17m2 stops
$584United Airlines
Find Deal
Tue, Nov 4 - Wed, Nov 12
KLM Logo
11:50 am - 10:30 amMSY-OPO
16h 40m2 stops
KLM Logo
6:35 am - 11:35 pmOPO-MSY
23h 00m2 stops
$589KLM
Find Deal
Wed, Nov 5 - Thu, Nov 13
Delta Logo
3:32 pm - 3:25 pmMSY-OPO
17h 53m2 stops
Delta Logo
6:05 am - 8:07 amOPO-MSY
32h 02m2 stops
$600Delta
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Wed, Nov 5 - Tue, Nov 11
Delta Logo
2:53 pm - 3:25 pmMSY-OPO
18h 32m2 stops
Delta Logo
6:00 am - 5:57 pmOPO-MSY
17h 57m2 stops
$610Delta
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Mon, Nov 3 - Wed, Nov 12
Multiple Airlines Logo
7:55 pm - 5:35 pmMSY-OPO
15h 40m1 stop
Multiple Airlines Logo
8:40 pm - 9:27 pmOPO-MSY
30h 47m2 stops
$628Multiple Airlines
Find Deal
Tue, Nov 4 - Thu, Nov 13
British Airways Logo
7:55 pm - 5:35 pmMSY-OPO
15h 40m1 stop
British Airways Logo
5:30 pm - 5:55 pmOPO-MSY
30h 25m1 stop
$671British Airways
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Tue, Nov 4 - Mon, Nov 10
Lufthansa Logo
12:25 pm - 9:30 amMSY-OPO
15h 05m1 stop
Lufthansa Logo
4:15 pm - 7:38 pmOPO-MSY
33h 23m2 stops
$678Lufthansa
Find Deal
Tue, Nov 4 - Thu, Nov 13
British Airways Logo
7:55 pm - 5:15 pmMSY-OPO
15h 20m1 stop
British Airways Logo
5:30 pm - 5:55 pmOPO-MSY
30h 25m1 stop
$696British Airways
Find Deal
Thu, Nov 6 - Mon, Nov 10
Lufthansa Logo
5:25 pm - 3:15 pmMSY-OPO
40h 50m2 stops
Lufthansa Logo
6:00 am - 12:02 amOPO-MSY
23h 02m2 stops
$702Lufthansa
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Sat, Mar 14 - Sun, Mar 22
Multiple Airlines Logo
3:07 pm - 11:50 amMSY-OPO
14h 43m1 stop
Multiple Airlines Logo
9:55 pm - 5:51 pmOPO-MSY
49h 56m2 stops
$761Multiple Airlines
Find Deal
Thu, Nov 6 - Thu, Nov 13

Lufthansa flights from Louisiana to Porto

Our best Lufthansa deals on Louisiana to Porto flight tickets
Lufthansa
Nov 4
MSY12:25 pmNew Orleans Louis Armstrong
15h 05m
1 stop
OPO9:30 amPorto
Nov 13
OPO4:15 pmPorto
33h 23m
2 stops
MSY7:38 pmNew Orleans Louis Armstrong
$678
Find similar
Lufthansa
Mar 14
MSY5:25 pmNew Orleans Louis Armstrong
40h 50m
2 stops
OPO3:15 pmPorto
Mar 22
OPO6:00 amPorto
23h 02m
2 stops
MSY12:02 amNew Orleans Louis Armstrong
$702
Find similar
Lufthansa
Nov 4
MSY12:25 pmNew Orleans Louis Armstrong
15h 05m
1 stop
OPO9:30 amPorto
Nov 12
OPO6:00 amPorto
23h 44m
2 stops
MSY11:44 pmNew Orleans Louis Armstrong
$790
Find similar

KLM flights from Louisiana to Porto

Our best KLM deals on Louisiana to Porto flight tickets
KLM
Nov 5
MSY11:50 amNew Orleans Louis Armstrong
16h 40m
2 stops
OPO10:30 amPorto
Nov 13
OPO6:35 amPorto
23h 00m
2 stops
MSY11:35 pmNew Orleans Louis Armstrong
$589
Find similar
KLM
Nov 4
MSY11:50 amNew Orleans Louis Armstrong
16h 40m
2 stops
OPO10:30 amPorto
Nov 13
OPO6:35 amPorto
21h 45m
2 stops
MSY10:20 pmNew Orleans Louis Armstrong
$597
Find similar
KLM
Nov 4
MSY11:50 amNew Orleans Louis Armstrong
16h 40m
2 stops
OPO10:30 amPorto
Nov 14
OPO11:15 amPorto
18h 20m
2 stops
MSY11:35 pmNew Orleans Louis Armstrong
$644
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Louisiana 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, momondo users made 832,500 searches. Data last updated September 23, 2025.
Use the filters below to find and compare flights from Louisiana to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 11/4

12:45 pm-9:30 am

2 stops14h 45m

Porto

Wed 11/12

12:35 pm-8:52 am

2 stops26h 17m

$584

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Wed 11/5

11:50 am-10:30 am

2 stops16h 40m

Porto

Thu 11/13

6:35 am-11:35 pm

2 stops23h 00m

$589

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Wed 11/5

3:32 pm-3:25 pm

2 stops17h 53m

Porto

Tue 11/11

6:05 am-8:07 am

2 stops32h 02m

$600

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Mon 11/3

2:53 pm-3:25 pm

2 stops18h 32m

Porto

Wed 11/12

6:00 am-5:57 pm

2 stops17h 57m

$610

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 11/4

7:55 pm-5:35 pm

1 stop15h 40m

Porto

Thu 11/13

8:40 pm-9:27 pm

2 stops30h 47m

$628

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 11/4

7:55 pm-5:35 pm

1 stop15h 40m

Porto

Mon 11/10

5:30 pm-5:55 pm

1 stop30h 25m

$671

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 11/4

12:25 pm-9:30 am

1 stop15h 05m

Porto

Thu 11/13

4:15 pm-7:38 pm

2 stops33h 23m

$678

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Thu 11/6

7:55 pm-5:15 pm

1 stop15h 20m

Porto

Mon 11/10

5:30 pm-5:55 pm

1 stop30h 25m

$696

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Sat 3/14

5:25 pm-3:15 pm

2 stops40h 50m

Porto

Sun 3/22

6:00 am-12:02 am

2 stops23h 02m

$702

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Thu 11/6

3:07 pm-11:50 am

1 stop14h 43m

Porto

Thu 11/13

9:55 pm-5:51 pm

2 stops49h 56m

$761

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto from

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

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.

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

At noon is the cheapest time of day to fly from Louisiana to Porto when you can find flight prices for as low as $611. Flying to Porto at noon 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 morning when prices are $1,152 on average. Flights to Porto from Louisiana in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Louisiana to Porto flights?

You could potentially save up to 5% 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

Direct flights

None
There are no direct flights from Louisiana to Porto. There are no popular flight routes from Louisiana to Porto.
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  • 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?

  • 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
American AirlinesPriceFrom $574Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Coimbra
Braga
Matosinhos
Caminha
Esposende
Lamego
Guimarães
Chaves
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
Mira

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.

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