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Cheap flights from Porto to New York from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to New York departing on 5/4. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:00 am - 10:33 pmOPO-LGA
21h 33m2 stops
Air Canada Logo
3:20 pm - 11:40 amLGA-OPO
15h 20m2 stops
$521Air Canada
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Thu, Jan 22 - Sun, Jan 25
Air Canada Logo
6:00 am - 10:33 pmOPO-LGA
21h 33m2 stops
Air Canada Logo
7:00 am - 11:25 amLGA-OPO
23h 25m2 stops
$524Air Canada
Find Deal
Fri, May 1 - Mon, May 11
United Airlines Logo
6:00 am - 6:44 pmOPO-LGA
17h 44m2 stops
United Airlines Logo
3:20 pm - 11:40 amLGA-OPO
15h 20m2 stops
$526United Airlines
Find Deal
Thu, Dec 4 - Mon, Jan 12
Air Canada Logo
6:00 am - 8:07 amOPO-LGA
31h 07m2 stops
Air Canada Logo
10:35 am - 11:15 amLGA-OPO
19h 40m2 stops
$527Air Canada
Find Deal
Sat, Feb 7 - Tue, Feb 17
Air Canada Logo
6:00 am - 10:33 pmOPO-LGA
21h 33m2 stops
Air Canada Logo
3:20 pm - 11:40 amLGA-OPO
15h 20m2 stops
$528Air Canada
Find Deal
Sat, Feb 21 - Tue, Mar 3
United Airlines Logo
6:00 am - 11:43 pmOPO-LGA
22h 43m2 stops
United Airlines Logo
1:15 pm - 11:40 amLGA-OPO
17h 25m2 stops
$529United Airlines
Find Deal
Mon, Feb 9 - Wed, Feb 18
Air Canada Logo
6:00 am - 10:31 pmOPO-LGA
21h 31m2 stops
Air Canada Logo
6:30 am - 6:30 pmLGA-OPO
31h 00m2 stops
$531Air Canada
Find Deal
Fri, Apr 17 - Sun, Apr 26
Air Canada Logo
6:00 am - 10:33 pmOPO-LGA
21h 33m2 stops
Air Canada Logo
7:50 pm - 11:40 amLGA-OPO
34h 50m2 stops
$534Air Canada
Find Deal
Sat, Feb 21 - Sat, Feb 28
Air Canada Logo
11:05 am - 7:48 amOPO-LGA
25h 43m2 stops
Air Canada Logo
7:00 am - 12:00 pmLGA-OPO
24h 00m2 stops
$537Air Canada
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Thu, Apr 30 - Sun, May 10
Air Canada Logo
6:00 am - 10:33 pmOPO-LGA
21h 33m2 stops
Air Canada Logo
6:05 am - 11:40 amLGA-OPO
24h 35m2 stops
$539Air Canada
Find Deal
Sat, Feb 7 - Sun, Feb 15

Air Canada flights from Porto to New York LaGuardia Airport

Our best Air Canada deals on Porto to New York LaGuardia Airport flight tickets
Air Canada
Jan 22
OPO6:00 amPorto
21h 33m
2 stops
LGA10:33 pmNew York LaGuardia
Jan 25
LGA3:20 pmNew York LaGuardia
15h 20m
2 stops
OPO11:40 amPorto
$521
Find similar
Air Canada
Apr 17
OPO6:00 amPorto
21h 31m
2 stops
LGA10:31 pmNew York LaGuardia
Apr 30
LGA6:30 amNew York LaGuardia
31h 00m
2 stops
OPO6:30 pmPorto
$524
Find similar
Air Canada
Feb 7
OPO6:00 amPorto
31h 07m
2 stops
LGA8:07 amNew York LaGuardia
Feb 17
LGA10:35 amNew York LaGuardia
19h 40m
2 stops
OPO11:15 amPorto
$527
Find similar

United Airlines flights from Porto to New York LaGuardia Airport

Our best United Airlines deals on Porto to New York LaGuardia Airport flight tickets
United Airlines
Dec 4
OPO6:00 amPorto
17h 44m
2 stops
LGA6:44 pmNew York LaGuardia
Jan 9
LGA2:55 pmNew York LaGuardia
18h 50m
2 stops
OPO2:45 pmPorto
$526
Find similar
United Airlines
Feb 9
OPO6:00 amPorto
17h 44m
2 stops
LGA6:44 pmNew York LaGuardia
Feb 15
LGA7:29 pmNew York LaGuardia
38h 26m
2 stops
OPO2:55 pmPorto
$529
Find similar
United Airlines
Dec 23
OPO12:30 pmPorto
54h 39m
2 stops
LGA2:09 pmNew York LaGuardia
Dec 30
LGA8:05 amNew York LaGuardia
22h 35m
2 stops
OPO11:40 amPorto
$568
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momondo Fare Finder

 
Customize your flight search to find flights from Porto to New York LaGuardia Airport 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 November 19, 2025.
Use the filters below to find and compare flights from Porto to New York LaGuardia Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoNew York

OPO - LGA

OPOLGA

Porto

Thu 1/22

6:00 am-10:33 pm

2 stops21h 33m

New York LaGuardia

Sun 1/25

3:20 pm-11:40 am

2 stops15h 20m

$521

PortoNew York

OPO - LGA

OPOLGA

Porto

Fri 5/1

6:00 am-10:33 pm

2 stops21h 33m

New York LaGuardia

Mon 5/11

7:00 am-11:25 am

2 stops23h 25m

$524

PortoNew York

OPO - LGA

OPOLGA

Porto

Thu 12/4

6:00 am-6:44 pm

2 stops17h 44m

New York LaGuardia

Mon 1/12

3:20 pm-11:40 am

2 stops15h 20m

$526

PortoNew York

OPO - LGA

OPOLGA

Porto

Sat 2/7

6:00 am-8:07 am

2 stops31h 07m

New York LaGuardia

Tue 2/17

10:35 am-11:15 am

2 stops19h 40m

$527

PortoNew York

OPO - LGA

OPOLGA

Porto

Sat 2/21

6:00 am-10:33 pm

2 stops21h 33m

New York LaGuardia

Tue 3/3

3:20 pm-11:40 am

2 stops15h 20m

$528

PortoNew York

OPO - LGA

OPOLGA

Porto

Mon 2/9

6:00 am-11:43 pm

2 stops22h 43m

New York LaGuardia

Wed 2/18

1:15 pm-11:40 am

2 stops17h 25m

$529

PortoNew York

OPO - LGA

OPOLGA

Porto

Fri 4/17

6:00 am-10:31 pm

2 stops21h 31m

New York LaGuardia

Sun 4/26

6:30 am-6:30 pm

2 stops31h 00m

$531

PortoNew York

OPO - LGA

OPOLGA

Porto

Sat 2/21

6:00 am-10:33 pm

2 stops21h 33m

New York LaGuardia

Sat 2/28

7:50 pm-11:40 am

2 stops34h 50m

$534

PortoNew York

OPO - LGA

OPOLGA

Porto

Thu 4/30

11:05 am-7:48 am

2 stops25h 43m

New York LaGuardia

Sun 5/10

7:00 am-12:00 pm

2 stops24h 00m

$537

PortoNew York

OPO - LGA

OPOLGA

Porto

Sat 2/7

6:00 am-10:33 pm

2 stops21h 33m

New York LaGuardia

Sun 2/15

6:05 am-11:40 am

2 stops24h 35m

$539

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 Porto to New York LaGuardia Airport

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 Porto to New York LaGuardia Airport flights?

You could potentially save up to 18% on your flight if you consider stops on a Porto to New York LaGuardia Airport flight.

When to book flights from Porto to New York LaGuardia Airport

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

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

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

Direct flights

None
There are no direct flights from Porto to New York LaGuardia Airport. There are no popular flight routes from Porto to New York LaGuardia Airport.
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  • How far is Porto to New York LaGuardia by plane?

    There are 3317.1 mi between Porto and New York LaGuardia. By plane, this route typically takes 14h 55m.

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to New York LaGuardia Airport.

  • What documentation or ID do you need to fly to New York LaGuardia Airport?

    The required travel and health documents for your New York LaGuardia 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 New York LaGuardia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Seaside Heights
Queens
Bronx
Yonkers
Asbury Park
East Rutherford
Point Pleasant Beach
Pocono Manor
Beach Haven
Spring Lake
Tannersville
Long Branch
Stamford
Wayne
East Stroudsburg
Elizabeth
Secaucus
Parsippany
Ocean Grove
Staten Island

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Porto to New York. momondo saves you time and could save you money on your trip.

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

Flights from Porto to New York 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 Porto to New York?

momondo provides multiple filters to help you find the best flight to New York from Porto. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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