Question 1

What is the cheapest day to depart on your flight to United States?

Accepted Answer

According to our data, Thursday is the cheapest day to fly to United States from Porto. The lowest ticket price found for a Thursday departure recently was $646. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $826. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

Question 2

What is the cheapest airline that flies from Porto to United States?

Accepted Answer

Iberia, American Airlines, and British Airways are the most popular carriers operating from Porto to United States

Question 3

What is the cheapest time of day to depart on your flight to United States?

Accepted Answer

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $542. Try not to purchase tickets in the morning because they tend to be around $708. Of course, these prices can vary depending on the time of year and what airport you fly to.

Question 4

What cabin class options are available on Porto to United States flights?

Accepted Answer

There are 3 cabin classes available to choose from on Porto to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 5

Which airline has the best punctuality record on Porto to the United States flights?

Accepted Answer

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

Question 6

How many flights depart from Porto to United States on average per week?

Accepted Answer

12 flights are operational weekly from Porto to United States as of December 2025. The most popular departure day for this route is Wed, with 25% of flights per week taking off on this day.

Question 7

How many flights depart from Porto to United States on average per day?

Accepted Answer

As of December 2025, there are 1 flights per day flying from Porto to United States. The most common time of day flights depart is 6:00PM, with 100% of flights taking off in the evening.

Question 8

How far in advance should I book a flight to United States?

Accepted Answer

You are more likely to see cheaper flights to United States from Porto when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $585 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Porto for as low as $505 on momondo.

Question 9

What is the cheapest month to fly to United States?

Accepted Answer

In general, February is the cheapest month to fly from Porto to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $508. If you aren’t able to travel during the month of February, then book flights to United States from Porto during September instead. Flights to United States in September, while not as cheap as those in February, still average around $540.

Question 10

How often are flights from Porto to the United States delayed?

Accepted Answer

Historically, on average around 16% of flights between Porto and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 162 minutes.

Question 11

Can stopping save me money on Porto to United States flights?

Accepted Answer

You could potentially save up to 21% on your flight if you consider stops on a Porto to United States flight.

Question 12

What is the cheapest Porto to United States flight route?

Accepted Answer

Fly from Porto to Boston Logan Intl for the best Porto - United States flight prices

Question 13

What airlines fly to United States?

Accepted Answer

TAP AIR PORTUGAL, United Airlines and Iberia are the top three most popular airlines that fly to United States from Porto according to our data. TAP AIR PORTUGAL is the first choice among our users, with 58% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 8 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

Question 14

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Question 15

What is the most punctual flight time for Porto to the United States flights?

Accepted Answer

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Question 16

When did momondo last update prices for flights from Porto Airport to United States?

Accepted Answer

Prices for flights from Porto Airport to United States are refreshed on a daily basis.

Question 17

How many operators does momondo search for flights from Porto Airport to United States?

Accepted Answer

As of December 2025, there are 7 operators available to choose from for flights from Porto Airport to United States.

Question 18

How old do you have to be to fly from Porto Airport to United States?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Airport to United States.

Question 19

What documentation or ID do you need to fly to United States?

Accepted Answer

The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best Price Found	$514
Fastest flight time	7h 40m
Direct flights	Every day
Airports in United States	4,296 airports

Airline	Rating	Free Cancellation	Price
Azores Airlines	PriceFrom $370	Free Cancellation	Rating 7.5 88 reviews	Search Azores Airlines flights
Iberia	PriceFrom $433	Free Cancellation	Rating 7.0 3,045 reviews	Search Iberia flights
Air Europa	PriceFrom $450	Free Cancellation	Rating 7.0 571 reviews	Search Air Europa flights
TAP AIR PORTUGAL	PriceFrom $458	Free Cancellation	Rating 7.1 2,089 reviews	Search TAP AIR PORTUGAL flights
British Airways	PriceFrom $467	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
United Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights
Lufthansa	PriceFrom $670	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights
KLM	PriceFrom $871	Free Cancellation	Rating 7.7 1,432 reviews	Search KLM flights

Cheap flights from Porto to the United States from $271

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 the United States departing on 2/9. 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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How to get the cheapest flight ticket from Porto to United States

What is the cheapest month to fly to United States?

What is the cheapest day to depart on your flight to United States?

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $542. Try not to purchase tickets in the morning because they tend to be around $708. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Porto to United States flight route?

Fly from Porto to Boston Logan Intl for the best Porto - United States flight prices

How far in advance should I book a flight to United States?

What cabin class options are available on Porto to United States flights?

There are 3 cabin classes available to choose from on Porto to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Porto to United States flights?

You could potentially save up to 21% on your flight if you consider stops on a Porto to United States flight.

What is the cheapest airline that flies from Porto to United States?

Iberia, American Airlines, and British Airways are the most popular carriers operating from Porto to United States

What airlines fly to United States?

How often are flights from Porto to the United States delayed?

Historically, on average around 16% of flights between Porto and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 162 minutes.

What is the most punctual flight time for Porto to the United States flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Porto to the United States flights?

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

How many flights depart from Porto to United States on average per day?

As of December 2025, there are 1 flights per day flying from Porto to United States. The most common time of day flights depart is 6:00PM, with 100% of flights taking off in the evening.

How many flights depart from Porto to United States on average per week?

12 flights are operational weekly from Porto to United States as of December 2025. The most popular departure day for this route is Wed, with 25% of flights per week taking off on this day.

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When did momondo last update prices for flights from Porto Airport to United States?

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What documentation or ID do you need to fly to United States?

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