Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Porto to New York from $450

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 7/21. 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 Porto to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:25 am - 11:45 pm
OPO
-
LGA
17h 20m
2 stops
Delta Logo
12:00 pm - 10:30 am
LGA
-
OPO
17h 30m
2 stops
$590Delta
Tue, Nov 10 - Tue, Nov 17
Delta Logo
11:25 am - 11:45 pm
OPO
-
LGA
17h 20m
2 stops
Delta Logo
3:00 pm - 10:30 am
LGA
-
OPO
14h 30m
2 stops
$591Delta
Tue, Nov 10 - Tue, Nov 17
American Airlines Logo
8:20 am - 7:59 pm
OPO
-
LGA
16h 39m
2 stops
American Airlines Logo
5:45 pm - 11:45 am
LGA
-
OPO
13h 00m
2 stops
$595American Airlines
Wed, Sep 23 - Tue, Oct 6
Multiple Airlines Logo
7:35 am - 7:36 pm
OPO
-
LGA
17h 01m
2 stops
Multiple Airlines Logo
4:00 pm - 9:20 pm
LGA
-
OPO
24h 20m
2 stops
$596Multiple Airlines
Fri, Oct 9 - Tue, Oct 13
American Airlines Logo
8:20 am - 9:08 pm
OPO
-
LGA
17h 48m
2 stops
American Airlines Logo
9:19 pm - 4:00 pm
LGA
-
OPO
37h 41m
2 stops
$598American Airlines
Fri, Sep 18 - Sun, Sep 20
American Airlines Logo
8:20 am - 9:08 pm
OPO
-
LGA
17h 48m
2 stops
American Airlines Logo
9:19 pm - 4:00 pm
LGA
-
OPO
37h 41m
2 stops
$599American Airlines
Fri, Sep 18 - Sun, Sep 20
American Airlines Logo
8:20 am - 8:03 pm
OPO
-
LGA
16h 43m
2 stops
American Airlines Logo
2:45 pm - 4:00 pm
LGA
-
OPO
20h 15m
2 stops
$606American Airlines
Mon, Sep 28 - Sun, Oct 11
American Airlines Logo
12:25 pm - 7:16 am
OPO
-
LGA
23h 51m
2 stops
American Airlines Logo
5:45 pm - 11:45 am
LGA
-
OPO
13h 00m
2 stops
$607American Airlines
Sun, Sep 27 - Tue, Oct 13
Multiple Airlines Logo
10:00 pm - 9:30 pm
OPO
-
LGA
28h 30m
2 stops
Multiple Airlines Logo
8:45 am - 4:10 pm
LGA
-
OPO
26h 25m
2 stops
$614Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
American Airlines Logo
8:20 am - 9:08 pm
OPO
-
LGA
17h 48m
2 stops
American Airlines Logo
9:19 pm - 4:00 pm
LGA
-
OPO
37h 41m
2 stops
$615American Airlines
Fri, Sep 18 - Sun, Sep 20

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
Sep 18
OPO6:00 amPorto
32h 45m
2 stops
LGA9:45 amNew York LaGuardia
Oct 7
LGA3:30 pmNew York LaGuardia
10h 30m
1 stop
OPO7:00 amPorto
$651
United Airlines
Oct 10
OPO6:00 amPorto
22h 30m
2 stops
LGA11:30 pmNew York LaGuardia
Oct 14
LGA10:35 amNew York LaGuardia
15h 25m
1 stop
OPO7:00 amPorto
$652
United Airlines
Sep 1
OPO6:00 amPorto
22h 30m
2 stops
LGA11:30 pmNew York LaGuardia
Oct 11
LGA8:30 pmNew York LaGuardia
29h 30m
1 stop
OPO7:00 amPorto
$653

Air Transat flights from Porto to New York LaGuardia Airport

Our best Air Transat deals on Porto to New York LaGuardia Airport flight tickets
Air Transat
Jul 24
OPO1:30 pmPorto
24h 25m
1 stop
LGA8:55 amNew York LaGuardia
Aug 13
LGA9:55 amNew York LaGuardia
20h 50m
1 stop
OPO11:45 amPorto
$659
Air Transat
Sep 28
OPO1:30 pmPorto
24h 25m
1 stop
LGA8:55 amNew York LaGuardia
Oct 7
LGA8:25 pmNew York LaGuardia
10h 30m
1 stop
OPO11:55 amPorto
$684
Air Transat
Jul 17
OPO1:30 pmPorto
24h 25m
1 stop
LGA8:55 amNew York LaGuardia
Jan 21
LGA8:20 pmNew York LaGuardia
29h 45m
1 stop
OPO7:05 amPorto
$688

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 June 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 - LGA

OPOLGA

Porto

Tue 11/10

11:25 am-11:45 pm

2 stops17h 20m

New York LaGuardia

Tue 11/17

12:00 pm-10:30 am

2 stops17h 30m

$590

PortoNew York

OPO - LGA

OPOLGA

Porto

Tue 11/10

11:25 am-11:45 pm

2 stops17h 20m

New York LaGuardia

Tue 11/17

3:00 pm-10:30 am

2 stops14h 30m

$591
Quickest round-trip

PortoNew York

OPO - LGA

OPOLGA

Porto

Wed 9/23

8:20 am-7:59 pm

2 stops16h 39m

New York LaGuardia

Tue 10/6

5:45 pm-11:45 am

2 stops13h 00m

$595

PortoNew York

OPO - LGA

OPOLGA

Porto

Fri 10/9

7:35 am-7:36 pm

2 stops17h 01m

New York LaGuardia

Tue 10/13

4:00 pm-9:20 pm

2 stops24h 20m

$596

PortoNew York

OPO - LGA

OPOLGA

Porto

Fri 9/18

8:20 am-9:08 pm

2 stops17h 48m

New York LaGuardia

Sun 9/20

9:19 pm-4:00 pm

2 stops37h 41m

$598

PortoNew York

OPO - LGA

OPOLGA

Porto

Fri 9/18

8:20 am-9:08 pm

2 stops17h 48m

New York LaGuardia

Sun 9/20

9:19 pm-4:00 pm

2 stops37h 41m

$599

PortoNew York

OPO - LGA

OPOLGA

Porto

Mon 9/28

8:20 am-8:03 pm

2 stops16h 43m

New York LaGuardia

Sun 10/11

2:45 pm-4:00 pm

2 stops20h 15m

$606

PortoNew York

OPO - LGA

OPOLGA

Porto

Sun 9/27

12:25 pm-7:16 am

2 stops23h 51m

New York LaGuardia

Tue 10/13

5:45 pm-11:45 am

2 stops13h 00m

$607

PortoNew York

OPO - LGA

OPOLGA

Porto

Tue 9/1

10:00 pm-9:30 pm

2 stops28h 30m

New York LaGuardia

Tue 9/15

8:45 am-4:10 pm

2 stops26h 25m

$614

PortoNew York

OPO - LGA

OPOLGA

Porto

Fri 9/18

8:20 am-9:08 pm

2 stops17h 48m

New York LaGuardia

Sun 9/20

9:19 pm-4:00 pm

2 stops37h 41m

$615

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 4% 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.
Search flight deals

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
Asbury Park
Point Pleasant Beach
Mount Laurel
Long Branch
Stamford
Beach Haven
Woodbridge
Parsippany
Tannersville
Secaucus
Spring Lake
East Stroudsburg
Wayne
Elizabeth
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.

An easier way to manage your New York LaGuardia Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 7/13
Mon 7/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to New York