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Cheap flights from New York LaGuardia Airport to Porto from $338

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New York LaGuardia Airport to Porto departing on 10/21. 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
1 adult, Economy, 0 bags

Find the cheapest flights from New York LaGuardia Airport to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:55 am - 9:10 am
LGA
-
OPO
18h 15m
2 stops
Multiple Airlines Logo
5:05 am - 7:25 pm
OPO
-
LGA
19h 20m
2 stops
$737Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
9:55 am - 9:10 am
LGA
-
OPO
18h 15m
2 stops
Multiple Airlines Logo
5:05 am - 7:25 pm
OPO
-
LGA
19h 20m
2 stops
$741Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
7:55 am - 6:45 am
LGA
-
OPO
17h 50m
2 stops
Multiple Airlines Logo
8:25 am - 2:36 pm
OPO
-
LGA
11h 11m
1 stop
$747Multiple Airlines
Mon, Sep 14 - Tue, Sep 22
Multiple Airlines Logo
5:30 pm - 1:45 pm
LGA
-
OPO
15h 15m
2 stops
Multiple Airlines Logo
6:30 am - 7:36 pm
OPO
-
LGA
18h 06m
2 stops
$753Multiple Airlines
Sun, Sep 27 - Tue, Oct 13
Multiple Airlines Logo
1:10 pm - 5:00 pm
LGA
-
OPO
22h 50m
2 stops
Multiple Airlines Logo
2:30 pm - 12:15 pm
OPO
-
LGA
26h 45m
3 stops
$754Multiple Airlines
Sun, Nov 22 - Sun, Nov 29
Multiple Airlines Logo
10:35 am - 11:55 am
LGA
-
OPO
20h 20m
2 stops
Multiple Airlines Logo
8:25 am - 2:36 pm
OPO
-
LGA
11h 11m
1 stop
$754Multiple Airlines
Wed, Sep 30 - Wed, Oct 14
Multiple Airlines Logo
3:30 pm - 11:35 am
LGA
-
OPO
15h 05m
2 stops
Multiple Airlines Logo
10:00 pm - 7:36 pm
OPO
-
LGA
26h 36m
2 stops
$758Multiple Airlines
Tue, Sep 15 - Tue, Sep 29
Multiple Airlines Logo
8:30 pm - 3:00 pm
LGA
-
OPO
13h 30m
2 stops
Multiple Airlines Logo
7:00 am - 7:25 pm
OPO
-
LGA
17h 25m
2 stops
$758Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
1:10 pm - 11:15 am
LGA
-
OPO
17h 05m
2 stops
Multiple Airlines Logo
6:15 am - 9:03 am
OPO
-
LGA
31h 48m
2 stops
$759Multiple Airlines
Wed, Nov 18 - Fri, Nov 27
Multiple Airlines Logo
4:45 pm - 5:45 pm
LGA
-
OPO
20h 00m
2 stops
Multiple Airlines Logo
10:40 pm - 7:36 pm
OPO
-
LGA
25h 56m
2 stops
$760Multiple Airlines
Sun, Sep 6 - Mon, Sep 14

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Air Canada flights from New York LaGuardia Airport to Porto

Our best Air Canada deals on New York LaGuardia Airport to Porto flight tickets
Air Canada
Nov 15
LGA4:20 pmNew York LaGuardia
42h 00m
2 stops
OPO3:20 pmPorto
Nov 24
OPO6:00 amPorto
21h 43m
2 stops
LGA10:43 pmNew York LaGuardia
$796
Air Canada
Jan 17
LGA3:15 pmNew York LaGuardia
39h 00m
2 stops
OPO11:15 amPorto
Jan 25
OPO6:00 amPorto
38h 38m
2 stops
LGA3:38 pmNew York LaGuardia
$813
Air Canada
Oct 13
LGA12:55 pmNew York LaGuardia
13h 05m
2 stops
OPO7:00 amPorto
Oct 22
OPO11:50 amPorto
15h 46m
2 stops
LGA10:36 pmNew York LaGuardia
$814

Air Transat flights from New York LaGuardia Airport to Porto

Our best Air Transat deals on New York LaGuardia Airport to Porto flight tickets
Air Transat
Aug 17
LGA8:30 pmNew York LaGuardia
10h 15m
1 stop
OPO11:45 amPorto
Aug 27
OPO1:30 pmPorto
32h 25m
1 stop
LGA4:55 pmNew York LaGuardia
$908
Air Transat
Aug 6
LGA9:55 amNew York LaGuardia
20h 50m
1 stop
OPO11:45 amPorto
Oct 10
OPO1:30 pmPorto
24h 25m
1 stop
LGA8:55 amNew York LaGuardia
$921
Air Transat
Aug 6
LGA9:55 amNew York LaGuardia
20h 50m
1 stop
OPO11:45 amPorto
Aug 18
OPO1:30 pmPorto
32h 25m
1 stop
LGA4:55 pmNew York LaGuardia
$931

momondo Fare Finder

 
Customize your flight search to find flights from New York LaGuardia Airport 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 August 4, 2026.
Use the filters below to find and compare flights from New York LaGuardia Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Thu 9/10

9:55 am-9:10 am

2 stops18h 15m

Porto

Thu 9/17

5:05 am-7:25 pm

2 stops19h 20m

$737

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Thu 9/10

9:55 am-9:10 am

2 stops18h 15m

Porto

Thu 9/17

5:05 am-7:25 pm

2 stops19h 20m

$741
Quickest round-trip

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Mon 9/14

7:55 am-6:45 am

2 stops17h 50m

Porto

Tue 9/22

8:25 am-2:36 pm

1 stop11h 11m

$747

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Sun 9/27

5:30 pm-1:45 pm

2 stops15h 15m

Porto

Tue 10/13

6:30 am-7:36 pm

2 stops18h 06m

$753

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Sun 11/22

1:10 pm-5:00 pm

2 stops22h 50m

Porto

Sun 11/29

2:30 pm-12:15 pm

3 stops26h 45m

$754

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Wed 9/30

10:35 am-11:55 am

2 stops20h 20m

Porto

Wed 10/14

8:25 am-2:36 pm

1 stop11h 11m

$754

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Tue 9/15

3:30 pm-11:35 am

2 stops15h 05m

Porto

Tue 9/29

10:00 pm-7:36 pm

2 stops26h 36m

$758

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Thu 9/10

8:30 pm-3:00 pm

2 stops13h 30m

Porto

Thu 9/17

7:00 am-7:25 pm

2 stops17h 25m

$758

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Wed 11/18

1:10 pm-11:15 am

2 stops17h 05m

Porto

Fri 11/27

6:15 am-9:03 am

2 stops31h 48m

$759

New YorkPorto

LGA - OPO

LGAOPO

New York LaGuardia

Sun 9/6

4:45 pm-5:45 pm

2 stops20h 00m

Porto

Mon 9/14

10:40 pm-7:36 pm

2 stops25h 56m

$760

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from New York LaGuardia Airport 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 Sunday when prices can be found for as low as $837. 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 Friday because tickets tend to average around $943. 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 New York LaGuardia Airport to Porto when you can find flight prices for as low as $576. 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 afternoon when prices are $1,032 on average. Flights to Porto from New York LaGuardia Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from New York LaGuardia Airport to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from New York LaGuardia Airport to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap New York LaGuardia Airport to Porto (LGA to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New York LaGuardia Airport to Porto

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Porto takes 10h 15m
There are no direct flights from New York LaGuardia Airport to Porto. There are no popular flight routes from New York LaGuardia Airport to Porto.
Search flight deals

Frequently asked questions about flying from New York LaGuardia Airport to Porto

  • How far is New York LaGuardia to Porto by plane?

    The distance between New York LaGuardia and Porto is about 3317.1 mi. A reasonable flight in good conditions will take 10h 15m.

  • When did momondo last update prices for flights from New York LaGuardia Airport to Porto Airport?

    Prices for flights from New York LaGuardia Airport to Porto Airport are updated daily.

  • How old do you have to be to fly from New York LaGuardia Airport to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from New York LaGuardia Airport to Porto Airport.

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

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
Pinhao
Esposende
Lamego
Chaves
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
Baiao

Why use momondo?

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

Finding the right flight to Porto from New York is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto quick and easy, saving you time and money.

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

Flights from New York to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from New York to Porto?

Once all potential New York to Porto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from New York 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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