Question 1

What is the cheapest month to fly to United States?

Accepted Answer

In general, February is the cheapest month to fly from Portugal to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $503. If you aren’t able to travel during the month of February, then book flights to United States from Portugal during March instead. Flights to United States in March, while not as cheap as those in February, still average around $522.

Question 2

How long is the flight from Portugal to United States?

Accepted Answer

Flight times vary depending on what airport in Portugal you fly out of and what airport in United States you fly into. For example, flying from Lisbon to Los Angeles takes 12h 30m on average. On the other hand, flying from Porto to Los Angeles takes 16h 05m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Question 3

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 Portugal. The lowest ticket price found for a Thursday departure recently was $686. 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 Saturday because tickets tend to average around $828. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

Question 4

What is the cheapest Portugal to United States flight route?

Accepted Answer

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

Question 5

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

Accepted Answer

Historically, on average around 25% of flights between Portugal and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 138 minutes.

Question 6

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. Friday has historically seen more delays on average compared to the rest of the week.

Question 7

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

Accepted Answer

There are 3 cabin classes available to choose from on Portugal 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 8

What airlines fly to United States?

Accepted Answer

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to United States from Portugal according to our data. TAP AIR PORTUGAL is the first choice among our users, with 51% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 15 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

As of December 2025, there are 25 flights per day flying from Portugal to United States. The most common time of day flights depart is 10:00AM, with 45% of flights taking off at noon.

Question 11

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

Accepted Answer

As of December 2025, 178 flights take off from Portugal and land in United States each week. The most common flight departure day for this route is Wed, with 18% of weekly flights taking off on this day.

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

Question 14

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 $378. Try not to purchase tickets in the morning because they tend to be around $752. Of course, these prices can vary depending on the time of year and what airport you fly to.

Question 15

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 Portugal when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $643 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Portugal for as low as $545 on momondo.

Question 16

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

Accepted Answer

Prices for flights from Portugal to United States are updated daily.

Question 17

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

Accepted Answer

The number of operators available for flights from Portugal to United States is 13 as of December 2025.

Question 18

How old do you have to be to fly from Portugal 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 Portugal to United States.

Question 19

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

Accepted Answer

The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best Price Found	$299
Fastest flight time	6h 05m
Direct flights	Every day
Airports in United States	3 airports

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $347	Free Cancellation	Rating 7.0 3,039 reviews	Search Iberia flights
Air Europa	PriceFrom $388	Free Cancellation	Rating 7.0 569 reviews	Search Air Europa flights
TAP AIR PORTUGAL	PriceFrom $401	Free Cancellation	Rating 7.1 2,081 reviews	Search TAP AIR PORTUGAL flights
Finnair	PriceFrom $402	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
Air France	PriceFrom $404	Free Cancellation	Rating 7.4 1,500 reviews	Search Air France flights
Virgin Atlantic	PriceFrom $428	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $431	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
KLM	PriceFrom $434	Free Cancellation	Rating 7.7 1,428 reviews	Search KLM flights
British Airways	PriceFrom $443	Free Cancellation	Rating 6.7 7,557 reviews	Search British Airways flights
United Airlines	PriceFrom $467	Free Cancellation	Rating 7.4 9,063 reviews	Search United Airlines flights

Cheap flights from Portugal to the United States from $242

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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 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 $378. Try not to purchase tickets in the morning because they tend to be around $752. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portugal to United States flight route?

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

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

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

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

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

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

What airlines fly to United States?

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

Historically, on average around 25% of flights between Portugal and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 138 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights at night 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. Friday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

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

As of December 2025, there are 25 flights per day flying from Portugal to United States. The most common time of day flights depart is 10:00AM, with 45% of flights taking off at noon.

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

As of December 2025, 178 flights take off from Portugal and land in United States each week. The most common flight departure day for this route is Wed, with 18% of weekly flights taking off on this day.

How long is the flight from Portugal to United States?

Cheap Portugal to United States flight deals and tips

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

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

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

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

What is the most popular plane model from Portugal to United States?

Best airlines flying from Portugal to United States

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