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$254+ Cheap flights from the United States to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OPO
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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Cheap flight deals from USA to Porto

Keep the following information in mind while searching for USA to Porto flight deals. Data was last updated abril 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$521
(Mytrip)

One-way from

$292
(Iberia)

Popular in

June

Cheapest in

November

Average price

$797

Good round-trip deal

$565 or less

Good one-way deal

$278 or less
Provider with most accurate pricing for New York (NYC)-Porto flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Porto flights.
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From USA to Porto
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One-way flight from USA to Porto
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Highest demand for flights based on searches. 19% potential increase in price ($189 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from USA to Porto.
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Price to beat on a one-way flight from USA to Porto.
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Find flight deals from USA to Porto

Cheapest flights from USA to Porto
Explore the most affordable flight options available from USA to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/1312:15 amJFK - OPO
1 stop16h 35mMultiple Airlines
mié. 5/216:05 amOPO - JFK
2 stops44h 55mMultiple Airlines
Deal found 4/16$531
This oojo deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/2910:05 pmJFK - OPO
1 stop12h 10mAir Europa
mar. 5/67:35 amOPO - JFK
1 stop15h 10mAir Europa
Deal found 4/16$534
This FlightHub deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/256:55 pmJFK - OPO
1 stop35h 05mScandinavian Airlines
vie. 9/125:55 pmOPO - JFK
1 stop28h 05mScandinavian Airlines
Deal found 4/17$537
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1810:45 amBWI - OPO
2 stops17h 45mUnited Airlines
mar. 11/2512:30 pmOPO - BWI
2 stops26h 49mUnited Airlines
Deal found 4/17$543
This Gotogate deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/146:50 pmBWI - OPO
1 stop20h 20mPLAY
jue. 5/299:10 pmOPO - BWI
1 stop25h 30mPLAY
Deal found 4/15$551
This oojo deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/216:00 pmORD - OPO
1 stop17h 00mTAP AIR PORTUGAL
vie. 10/39:00 amOPO - ORD
1 stop13h 30mTAP AIR PORTUGAL
Deal found 4/17$565
This oojo deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1710:00 pmJFK - OPO
1 stop10h 05mTAP AIR PORTUGAL
lun. 11/248:00 pmOPO - JFK
1 stop29h 05mTAP AIR PORTUGAL
Deal found 4/16$591
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/311:15 amORD - OPO
2 stops16h 15mUnited Airlines
dom. 11/96:00 amOPO - ORD
1 stop13h 25mUnited Airlines
Deal found 4/17$591
This Cheapflightsfares deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/1310:30 pmORD - OPO
2 stops18h 50mLufthansa
mar. 11/1112:30 pmOPO - ORD
1 stop13h 35mLufthansa
Deal found 4/17$593
This FlightHub deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/116:10 pmBOS - OPO
1 stop11h 00mTAP AIR PORTUGAL
jue. 10/2312:25 pmOPO - BOS
1 stop12h 25mTAP AIR PORTUGAL
Deal found 4/15$593
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/274:45 pmBOS - OPO
1 stop24h 30mDelta
mar. 9/94:20 pmOPO - BOS
2 stops28h 51mDelta
Deal found 4/15$594
This SWISS deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/135:05 pmBOS - OPO
2 stops19h 20mSWISS
jue. 10/238:40 amOPO - BOS
1 stop11h 45mSWISS
Deal found 4/15$595

Cheapflights Fare Finder

Customize your flight search to find flights from USA 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, Cheapflights users made 2,558,603 searches. Data last updated abril 17, 2025.
Use the filters below to find and compare flights from the United States to Porto that are best for you.

Fly from

USA

Fly to

Porto

Route

Depart

Return

Price

New YorkPorto

JFK - OPO

JFKOPO

New York John F Kennedy Intl

mar. 5/13

12:15 am-9:50 pm

1 stop16h 35m

Porto

mié. 5/21

6:05 am-10:00 pm

2 stops44h 55m

$531

New YorkPorto

JFK - OPO

JFKOPO

New York John F Kennedy Intl

mar. 4/29

10:05 pm-3:15 pm

1 stop12h 10m

Porto

mar. 5/6

7:35 am-5:45 pm

1 stop15h 10m

$534

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

mié. 5/14

6:50 pm-8:10 pm

1 stop20h 20m

Porto

jue. 5/29

9:10 pm-5:40 pm

1 stop25h 30m

$551

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

dom. 9/21

6:00 pm-5:00 pm

1 stop17h 00m

Porto

vie. 10/3

9:00 am-4:30 pm

1 stop13h 30m

$565

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

lun. 10/13

10:30 pm-11:20 pm

2 stops18h 50m

Porto

mar. 11/11

12:30 pm-8:05 pm

1 stop13h 35m

$593

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 5/26

11:15 pm-10:55 am

Nonstop6h 40m

Porto

jue. 6/5

7:00 am-7:50 pm

1 stop17h 50m

$596

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 5/7

8:40 am-6:30 pm

2 stops27h 50m

Porto

mié. 5/14

12:20 pm-3:55 pm

1 stop33h 35m

$600

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

lun. 4/28

3:50 pm-3:30 pm

1 stop17h 40m

Porto

mié. 5/14

4:20 pm-11:31 am

2 stops25h 11m

$601

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 9/3

11:25 am-3:50 pm

1 stop22h 25m

Porto

mar. 9/9

4:50 pm-9:40 am

1 stop22h 50m

$613

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mié. 7/16

9:20 pm-3:55 pm

1 stop13h 35m

Porto

mié. 9/17

12:20 pm-7:50 pm

1 stop12h 30m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 results
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Best time to book a flight from USA to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from USA with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to Porto

What is the cheapest month to book a flight from USA to Porto?

Currently, January is the cheapest month in which you can book a flight from USA to Porto (average of $523). Flying from USA to Porto in June is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from US to OPO?

Find hourly flight availability from USA to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 17, 2025.

When flying from USA to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated abril 17, 2025.
Get a feel of what it's like to fly with Aegean Airlines, Delta and Porter Airlines from USA to Porto by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very good
734 reviews

Overall

8.1

Food

7.3

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very good
734 reviews
Aegean Airlines
8.1
Very good
734 reviews

Overall

8.1

Food

7.3

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Delta
8.0
Very good
7,916 reviews
Aegean Airlines
8.1
Very good
734 reviews

Overall

8.1

Food

7.3

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Porter Airlines
8.0
Very good
281 reviews
Aegean Airlines
8.1
Very good
734 reviews

Overall

8.1

Food

7.3

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,327 reviews
Aegean Airlines
8.1
Very good
734 reviews

Overall

8.1

Food

7.3

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Air Transat
7.8
Good
385 reviews
Aegean Airlines
8.1
Very good
734 reviews

Overall

8.1

Food

7.3

Boarding

7.8

Comfort

7.8

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

Find useful and relevant information for your journey from USA to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from United States?

    Porto (OPO) is the airport you will fly into if you book a flight from United States to Porto. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • What are the cheapest airlines to fly from USA to Porto one-way?

    The cheapest airlines for a one-way flight from USA to Porto are Iberia ($292), Azores Airlines ($307), and PLAY ($316).

  • What are the most popular routes from USA to Porto?

    When deciding which route to take from USA to Porto consider Newark - Porto, New York John F Kennedy Intl - Porto or Boston Logan Intl - Porto as they are the most popular.

  • Can I find deals for flights from USA to Porto that include hotel bookings?

    Yes. In addition to deals on USA to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Porto.

  • Can I find deals for business class flights from USA to Porto?

    Yes. Cheapflights offers flight deals from USA to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from USA to Porto?

    Currently, January is the cheapest month in which you can book a flight from USA to Porto (average of $523). Flying from USA to Porto in June is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near the United States?

Book flights to the United States if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Alternative routes for USA to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from USA to Porto

Discover the top 10 airlines that operate flights from USA to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$293Average$676FlexibilityNo cancel feeOn-time74%
TAP AIR PORTUGALCheapest$375Average$817FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$377Average$839FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$421Average$1,029FlexibilityNo cancel feeOn-time77%
DeltaCheapest$423Average$1,028FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$425Average$951FlexibilityNo cancel feeOn-time75%
LEVELCheapest$433Average$598FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$468Average$789FlexibilityNo cancel feeOn-time88%
Air EuropaCheapest$469Average$764FlexibilityNo cancel feeOn-time83%
IberiaCheapest$471Average$890FlexibilityNo cancel feeOn-time77%

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