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Cheap flights from Louisiana to Porto from $819

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 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Louisiana to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 6:15 am
MSY
-
OPO
18h 15m
1 stop
United Airlines Logo
12:15 pm - 12:56 pm
OPO
-
MSY
30h 41m
2 stops
$819United Airlines
Tue, Aug 4 - Tue, Sep 1
United Airlines Logo
7:00 am - 7:00 am
MSY
-
OPO
18h 00m
3 stops
United Airlines Logo
12:15 pm - 12:56 pm
OPO
-
MSY
30h 41m
2 stops
$822United Airlines
Tue, Aug 4 - Tue, Sep 1
Delta Logo
10:20 am - 10:30 am
MSY
-
OPO
18h 10m
1 stop
Delta Logo
5:00 am - 3:24 pm
OPO
-
MSY
16h 24m
2 stops
$831Delta
Tue, Aug 4 - Fri, Sep 4
Delta Logo
12:47 pm - 3:25 pm
MSY
-
OPO
20h 38m
2 stops
Delta Logo
11:25 am - 4:15 pm
OPO
-
MSY
34h 50m
2 stops
$836Delta
Tue, Aug 4 - Mon, Aug 31
United Airlines Logo
10:10 am - 6:15 am
MSY
-
OPO
14h 05m
1 stop
United Airlines Logo
9:00 am - 6:23 pm
OPO
-
MSY
15h 23m
1 stop
$839United Airlines
Tue, Aug 4 - Thu, Sep 3
United Airlines Logo
7:00 am - 6:15 am
MSY
-
OPO
17h 15m
3 stops
United Airlines Logo
9:00 am - 9:52 pm
OPO
-
MSY
18h 52m
2 stops
$843United Airlines
Tue, Aug 4 - Fri, Sep 4
United Airlines Logo
6:00 am - 9:45 am
MSY
-
OPO
21h 45m
1 stop
United Airlines Logo
12:15 pm - 12:56 pm
OPO
-
MSY
30h 41m
2 stops
$865United Airlines
Sun, Aug 2 - Tue, Sep 1
Air Canada Logo
7:00 am - 7:00 am
MSY
-
OPO
18h 00m
2 stops
Air Canada Logo
12:15 pm - 12:56 pm
OPO
-
MSY
30h 41m
2 stops
$868Air Canada
Wed, Jul 29 - Tue, Sep 1
Air Canada Logo
5:35 pm - 7:00 am
MSY
-
OPO
31h 25m
2 stops
Air Canada Logo
12:15 pm - 12:56 pm
OPO
-
MSY
30h 41m
2 stops
$874Air Canada
Sun, Aug 2 - Tue, Sep 1
Delta Logo
10:20 am - 10:30 am
MSY
-
OPO
18h 10m
1 stop
Delta Logo
5:00 am - 8:39 pm
OPO
-
MSY
21h 39m
2 stops
$877Delta
Wed, Jul 29 - Wed, Sep 2

United Airlines flights from Louisiana to Porto

Our best United Airlines deals on Louisiana to Porto flight tickets
United Airlines
Aug 4
MSY6:00 amNew Orleans Louis Armstrong
18h 15m
1 stop
OPO6:15 amPorto
Sep 1
OPO12:15 pmPorto
30h 41m
2 stops
MSY12:56 pmNew Orleans Louis Armstrong
$819
United Airlines
Aug 4
MSY7:00 amNew Orleans Louis Armstrong
18h 00m
3 stops
OPO7:00 amPorto
Sep 1
OPO12:15 pmPorto
30h 41m
2 stops
MSY12:56 pmNew Orleans Louis Armstrong
$822
United Airlines
Aug 4
MSY10:10 amNew Orleans Louis Armstrong
14h 05m
1 stop
OPO6:15 amPorto
Sep 3
OPO9:00 amPorto
15h 23m
1 stop
MSY6:23 pmNew Orleans Louis Armstrong
$839

Delta flights from Louisiana to Porto

Our best Delta deals on Louisiana to Porto flight tickets
Delta
Aug 4
MSY10:20 amNew Orleans Louis Armstrong
18h 10m
1 stop
OPO10:30 amPorto
Sep 4
OPO5:00 amPorto
16h 24m
2 stops
MSY3:24 pmNew Orleans Louis Armstrong
$831
Delta
Aug 4
MSY12:47 pmNew Orleans Louis Armstrong
20h 38m
2 stops
OPO3:25 pmPorto
Aug 31
OPO11:25 amPorto
34h 50m
2 stops
MSY4:15 pmNew Orleans Louis Armstrong
$836
Delta
Jul 29
MSY10:20 amNew Orleans Louis Armstrong
18h 10m
1 stop
OPO10:30 amPorto
Sep 2
OPO5:00 amPorto
21h 39m
2 stops
MSY8:39 pmNew Orleans Louis Armstrong
$877

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 May 11, 2026.
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

Cheapest round-trip

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 8/4

6:00 am-6:15 am

1 stop18h 15m

Porto

Tue 9/1

12:15 pm-12:56 pm

2 stops30h 41m

$819

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 8/4

7:00 am-7:00 am

3 stops18h 00m

Porto

Tue 9/1

12:15 pm-12:56 pm

2 stops30h 41m

$822

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 8/4

10:20 am-10:30 am

1 stop18h 10m

Porto

Fri 9/4

5:00 am-3:24 pm

2 stops16h 24m

$831

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 8/4

12:47 pm-3:25 pm

2 stops20h 38m

Porto

Mon 8/31

11:25 am-4:15 pm

2 stops34h 50m

$836
Quickest round-trip

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 8/4

10:10 am-6:15 am

1 stop14h 05m

Porto

Thu 9/3

9:00 am-6:23 pm

1 stop15h 23m

$839

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Tue 8/4

7:00 am-6:15 am

3 stops17h 15m

Porto

Fri 9/4

9:00 am-9:52 pm

2 stops18h 52m

$843

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Sun 8/2

6:00 am-9:45 am

1 stop21h 45m

Porto

Tue 9/1

12:15 pm-12:56 pm

2 stops30h 41m

$865

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Wed 7/29

7:00 am-7:00 am

2 stops18h 00m

Porto

Tue 9/1

12:15 pm-12:56 pm

2 stops30h 41m

$868

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Sun 8/2

5:35 pm-7:00 am

2 stops31h 25m

Porto

Tue 9/1

12:15 pm-12:56 pm

2 stops30h 41m

$874

New OrleansPorto

MSY - OPO

MSYOPO

New Orleans Louis Armstrong

Wed 7/29

10:20 am-10:30 am

1 stop18h 10m

Porto

Wed 9/2

5:00 am-8:39 pm

2 stops21h 39m

$877

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

Can stopping save me money on Louisiana to Porto flights?

You could potentially save up to 7% 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

18h 11m

Direct flights

None
The fastest flight from Louisiana to Porto takes 18h 11m
There are no direct flights from Louisiana to Porto. There are no popular flight routes from Louisiana to Porto.
Search flight deals

Frequently asked questions about flying 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 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.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Espinho
Guimarães
Arcos de Valdevez
Ponte de Lima
Viseu
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.

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