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Cheap flights from Porto to New York from $370

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 10/16. 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

United Airlines Logo
6:00 am - 6:13 pmOPO-LGA
17h 13m2 stops
United Airlines Logo
6:15 am - 11:40 amLGA-OPO
24h 25m2 stops
$502United Airlines
Find Deal
Thu, Dec 18 - Thu, Jan 8
United Airlines Logo
6:00 am - 4:05 pmOPO-LGA
39h 05m2 stops
United Airlines Logo
2:59 pm - 3:25 pmLGA-OPO
19h 26m2 stops
$503United Airlines
Find Deal
Fri, Feb 13 - Wed, Feb 18
Delta Logo
6:00 am - 4:30 pmOPO-LGA
15h 30m2 stops
Delta Logo
2:00 pm - 10:15 amLGA-OPO
15h 15m2 stops
$509Delta
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Wed, Nov 5 - Mon, Nov 10
American Airlines Logo
8:20 am - 8:26 pmOPO-LGA
17h 06m2 stops
American Airlines Logo
5:55 pm - 11:45 amLGA-OPO
12h 50m2 stops
$511American Airlines
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Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
8:20 am - 8:36 pmOPO-LGA
16h 16m2 stops
American Airlines Logo
1:00 pm - 7:40 amLGA-OPO
14h 40m2 stops
$514American Airlines
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Mon, Mar 9 - Mon, Mar 16
Delta Logo
11:25 am - 11:37 pmOPO-LGA
17h 12m2 stops
Delta Logo
2:00 pm - 10:15 amLGA-OPO
15h 15m2 stops
$519Delta
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Mon, Nov 3 - Mon, Nov 17
Air Canada Logo
6:00 am - 10:33 pmOPO-LGA
21h 33m2 stops
Air Canada Logo
7:45 pm - 11:15 amLGA-OPO
34h 30m2 stops
$533Air Canada
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Tue, Dec 23 - Tue, Jan 6
Air Canada Logo
6:00 am - 3:38 pmOPO-LGA
38h 38m2 stops
Air Canada Logo
7:45 pm - 11:15 amLGA-OPO
34h 30m2 stops
$536Air Canada
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Tue, Dec 9 - Mon, Dec 29
Multiple Airlines Logo
7:25 pm - 7:03 pmOPO-LGA
27h 38m2 stops
Multiple Airlines Logo
4:20 pm - 12:50 pmLGA-OPO
15h 30m2 stops
$608Multiple Airlines
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Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
9:55 pm - 9:33 pmOPO-LGA
27h 38m2 stops
Multiple Airlines Logo
3:20 pm - 1:15 pmLGA-OPO
16h 55m2 stops
$609Multiple Airlines
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Thu, Oct 30 - Thu, Nov 6

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 18
OPO6:00 amPorto
17h 13m
2 stops
LGA6:13 pmNew York LaGuardia
Jan 8
LGA6:15 amNew York LaGuardia
24h 25m
2 stops
OPO11:40 amPorto
$502
Find similar
United Airlines
Feb 13
OPO6:00 amPorto
39h 05m
2 stops
LGA4:05 pmNew York LaGuardia
Feb 18
LGA2:59 pmNew York LaGuardia
19h 26m
2 stops
OPO3:25 pmPorto
$503
Find similar
United Airlines
Dec 2
OPO12:30 pmPorto
31h 12m
2 stops
LGA2:42 pmNew York LaGuardia
Dec 7
LGA7:29 pmNew York LaGuardia
35h 11m
2 stops
OPO11:40 amPorto
$520
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Delta flights from Porto to New York LaGuardia Airport

Our best Delta deals on Porto to New York LaGuardia Airport flight tickets
Delta
Nov 5
OPO6:00 amPorto
15h 30m
2 stops
LGA4:30 pmNew York LaGuardia
Nov 10
LGA2:00 pmNew York LaGuardia
15h 15m
2 stops
OPO10:15 amPorto
$509
Find similar
Delta
Nov 3
OPO11:25 amPorto
17h 12m
2 stops
LGA11:37 pmNew York LaGuardia
Nov 17
LGA2:00 pmNew York LaGuardia
15h 15m
2 stops
OPO10:15 amPorto
$519
Find similar
Delta
Dec 19
OPO11:15 amPorto
16h 13m
2 stops
LGA10:28 pmNew York LaGuardia
Jan 7
LGA3:00 pmNew York LaGuardia
14h 30m
2 stops
OPO10:30 amPorto
$547
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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 September 17, 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 12/18

6:00 am-6:13 pm

2 stops17h 13m

New York LaGuardia

Thu 1/8

6:15 am-11:40 am

2 stops24h 25m

$502

PortoNew York

OPO - LGA

OPOLGA

Porto

Fri 2/13

6:00 am-4:05 pm

2 stops39h 05m

New York LaGuardia

Wed 2/18

2:59 pm-3:25 pm

2 stops19h 26m

$503

PortoNew York

OPO - LGA

OPOLGA

Porto

Wed 11/5

6:00 am-4:30 pm

2 stops15h 30m

New York LaGuardia

Mon 11/10

2:00 pm-10:15 am

2 stops15h 15m

$509

PortoNew York

OPO - LGA

OPOLGA

Porto

Thu 12/4

8:20 am-8:26 pm

2 stops17h 06m

New York LaGuardia

Mon 12/8

5:55 pm-11:45 am

2 stops12h 50m

$511

PortoNew York

OPO - LGA

OPOLGA

Porto

Mon 3/9

8:20 am-8:36 pm

2 stops16h 16m

New York LaGuardia

Mon 3/16

1:00 pm-7:40 am

2 stops14h 40m

$514

PortoNew York

OPO - LGA

OPOLGA

Porto

Mon 11/3

11:25 am-11:37 pm

2 stops17h 12m

New York LaGuardia

Mon 11/17

2:00 pm-10:15 am

2 stops15h 15m

$519

PortoNew York

OPO - LGA

OPOLGA

Porto

Tue 12/23

6:00 am-10:33 pm

2 stops21h 33m

New York LaGuardia

Tue 1/6

7:45 pm-11:15 am

2 stops34h 30m

$533

PortoNew York

OPO - LGA

OPOLGA

Porto

Tue 12/9

6:00 am-3:38 pm

2 stops38h 38m

New York LaGuardia

Mon 12/29

7:45 pm-11:15 am

2 stops34h 30m

$536

PortoNew York

OPO - LGA

OPOLGA

Porto

Thu 10/30

7:25 pm-7:03 pm

2 stops27h 38m

New York LaGuardia

Thu 11/6

4:20 pm-12:50 pm

2 stops15h 30m

$608

PortoNew York

OPO - LGA

OPOLGA

Porto

Thu 10/30

9:55 pm-9:33 pm

2 stops27h 38m

New York LaGuardia

Thu 11/6

3:20 pm-1:15 pm

2 stops16h 55m

$609

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

What is the cheapest airline that flies from Porto to New York LaGuardia?

British Airways, American Airlines, and Air Transat are the most popular carriers operating from Porto to New York LaGuardia

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 13h 05m.

  • 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
Pocono Manor
Point Pleasant Beach
East Rutherford
Beach Haven
Spring Lake
Stamford
Tannersville
Long Branch
Wayne
Elizabeth
East Stroudsburg
Parsippany
Secaucus
Staten Island
Ocean Grove

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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