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Cheap flights from Porto to New York from $371

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 9/22. 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 Porto to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
12:25 pm - 11:44 pmOPO  Porto-LGA New York LaGuardia
16h 19m2 stops Madrid Barajas Washington, D.C. Dulles Intl
Iberia Logo
2:03 pm - 11:45 amLGA  New York LaGuardia-OPO Porto
16h 42m2 stops Boston Logan Intl Madrid Barajas
$557Iberia
Thu, Sep 17 - Sat, Sep 26
Iberia Logo
8:20 am - 8:59 pmOPO  Porto-LGA New York LaGuardia
17h 39m2 stops Madrid Barajas Boston Logan Intl
Iberia Logo
3:29 pm - 11:45 amLGA  New York LaGuardia-OPO Porto
15h 16m2 stops Boston Logan Intl Madrid Barajas
$558Iberia
Wed, Sep 23 - Wed, Sep 30
Delta Logo
5:00 am - 7:33 pmOPO  Porto-LGA New York LaGuardia
19h 33m2 stops Amsterdam Schiphol Boston Logan Intl
Delta Logo
12:00 pm - 10:35 amLGA  New York LaGuardia-OPO Porto
17h 35m2 stops Boston Logan Intl Paris Charles de Gaulle
$564Delta
Fri, Dec 4 - Tue, Dec 8
Delta Logo
11:15 am - 10:25 pmOPO  Porto-LGA New York LaGuardia
16h 10m2 stops Amsterdam Schiphol Boston Logan Intl
Delta Logo
2:00 pm - 10:35 amLGA  New York LaGuardia-OPO Porto
15h 35m2 stops Boston Logan Intl Paris Charles de Gaulle
$565Delta
Wed, Nov 11 - Mon, Nov 16
American Airlines Logo
8:20 am - 7:16 amOPO  Porto-LGA New York LaGuardia
27h 56m2 stops Madrid Barajas Boston Logan Intl
American Airlines Logo
11:29 am - 4:00 pmLGA  New York LaGuardia-OPO Porto
23h 31m2 stops Boston Logan Intl Madrid Barajas
$574American Airlines
Thu, Sep 17 - Tue, Sep 22
American Airlines Logo
8:20 am - 8:24 pmOPO  Porto-LGA New York LaGuardia
17h 04m2 stops Madrid Barajas Washington, D.C. Dulles Intl
American Airlines Logo
11:30 am - 11:45 amLGA  New York LaGuardia-OPO Porto
19h 15m2 stops Boston Logan Intl Madrid Barajas
$575American Airlines
Wed, Oct 7 - Thu, Oct 15
American Airlines Logo
8:20 am - 8:24 pmOPO  Porto-LGA New York LaGuardia
17h 04m2 stops Madrid Barajas Washington, D.C. Dulles Intl
American Airlines Logo
12:14 pm - 7:40 amLGA  New York LaGuardia-OPO Porto
14h 26m2 stops Charlotte Douglas Madrid Barajas
$577American Airlines
Wed, Oct 7 - Wed, Oct 14
American Airlines Logo
8:20 am - 7:54 pmOPO  Porto-LGA New York LaGuardia
16h 34m2 stops Madrid Barajas Chicago O'Hare Intl
American Airlines Logo
9:20 pm - 11:45 amLGA  New York LaGuardia-OPO Porto
33h 25m2 stops Chicago O'Hare Intl Madrid Barajas
$580American Airlines
Tue, Dec 1 - Tue, Dec 8
Air Canada Logo
11:50 am - 9:30 pmOPO  Porto-LGA New York LaGuardia
14h 40m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
3:30 pm - 7:00 amLGA  New York LaGuardia-OPO Porto
10h 30m1 stop Montreal Pierre Elliott Trudeau Intl
$581Air Canada
Thu, Oct 8 - Tue, Oct 13
Air Canada Logo
11:20 am - 7:36 pmOPO  Porto-LGA New York LaGuardia
13h 16m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
3:30 pm - 7:00 amLGA  New York LaGuardia-OPO Porto
10h 30m1 stop Montreal Pierre Elliott Trudeau Intl
$582Air Canada
Wed, Oct 7 - Mon, Oct 12

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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
Aug 27
OPO12:10 pmPorto
16h 20m
2 stops
LGA11:30 pmNew York LaGuardia
Aug 31
LGA9:10 amNew York LaGuardia
16h 50m
2 stops
OPO7:00 amPorto
$670
United Airlines
Oct 1
OPO6:00 amPorto
22h 30m
2 stops
LGA11:30 pmNew York LaGuardia
Oct 31
LGA2:30 pmNew York LaGuardia
20h 50m
2 stops
OPO3:20 pmPorto
$671
United Airlines
Dec 30
OPO6:00 amPorto
32h 03m
2 stops
LGA9:03 amNew York LaGuardia
Jun 22
LGA3:30 pmNew York LaGuardia
13h 30m
1 stop
OPO10:00 amPorto
$672

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
Oct 8
OPO11:50 amPorto
14h 40m
1 stop
LGA9:30 pmNew York LaGuardia
Oct 13
LGA3:30 pmNew York LaGuardia
10h 30m
1 stop
OPO7:00 amPorto
$581
Air Canada
Oct 7
OPO11:20 amPorto
13h 16m
1 stop
LGA7:36 pmNew York LaGuardia
Oct 12
LGA3:30 pmNew York LaGuardia
10h 30m
1 stop
OPO7:00 amPorto
$582
Air Canada
Oct 7
OPO11:20 amPorto
13h 16m
1 stop
LGA7:36 pmNew York LaGuardia
Oct 13
LGA3:30 pmNew York LaGuardia
10h 30m
1 stop
OPO7:00 amPorto
$599

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 August 13, 2026.
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

Cheapest round-trip

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Thu 9/17

12:25 pm-11:44 pm

2 stops16h 19m

New York LaGuardia

Sat 9/26

2:03 pm-11:45 am

2 stops16h 42m

$557

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Wed 9/23

8:20 am-8:59 pm

2 stops17h 39m

New York LaGuardia

Wed 9/30

3:29 pm-11:45 am

2 stops15h 16m

$558

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Fri 12/4

5:00 am-7:33 pm

2 stops19h 33m

New York LaGuardia

Tue 12/8

12:00 pm-10:35 am

2 stops17h 35m

$564

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Wed 11/11

11:15 am-10:25 pm

2 stops16h 10m

New York LaGuardia

Mon 11/16

2:00 pm-10:35 am

2 stops15h 35m

$565

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Thu 9/17

8:20 am-7:16 am

2 stops27h 56m

New York LaGuardia

Tue 9/22

11:29 am-4:00 pm

2 stops23h 31m

$574

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Wed 10/7

8:20 am-8:24 pm

2 stops17h 04m

New York LaGuardia

Thu 10/15

11:30 am-11:45 am

2 stops19h 15m

$575

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Wed 10/7

8:20 am-8:24 pm

2 stops17h 04m

New York LaGuardia

Wed 10/14

12:14 pm-7:40 am

2 stops14h 26m

$577

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Tue 12/1

8:20 am-7:54 pm

2 stops16h 34m

New York LaGuardia

Tue 12/8

9:20 pm-11:45 am

2 stops33h 25m

$580

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Thu 10/8

11:50 am-9:30 pm

1 stop14h 40m

New York LaGuardia

Tue 10/13

3:30 pm-7:00 am

1 stop10h 30m

$581
Quickest round-trip

PortoNew York

OPO Porto - LGA New York LaGuardia

OPOLGA

Porto

Wed 10/7

11:20 am-7:36 pm

1 stop13h 16m

New York LaGuardia

Mon 10/12

3:30 pm-7:00 am

1 stop10h 30m

$582

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

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 54% 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

Fastest flight time

10h 37m

Direct flights

None
The fastest flight from Porto to New York LaGuardia Airport takes 10h 37m
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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Frequently asked questions about flying from Porto to New York LaGuardia Airport

  • 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 10h 37m.

  • 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
Queens
Seaside Heights
Bronx
Yonkers
East Rutherford
Mount Laurel
Secaucus
Stamford
Wayne
Woodbridge
Parsippany
Point Pleasant Beach
Asbury Park
Long Branch
East Stroudsburg
Tannersville
Elizabeth
Staten Island
Hauppauge
Edgewater

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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