Question 1

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 52% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 13 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

Question 2

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 afternoon when flights can be purchased for as low as $645. Try not to purchase tickets in the morning because they tend to be around $774. Of course, these prices can vary depending on the time of year and what airport you fly to.

Question 3

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

Accepted Answer

Historically, on average around 27% 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 136 minutes.

Question 4

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

Accepted Answer

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

Question 5

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 Ponta Delgada to Los Angeles takes 14h 47m 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 6

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 $687. 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 $834. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

Question 7

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 $523. 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 $541.

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 Portugal when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $657 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 $570 on momondo.

Question 9

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

Accepted Answer

As of February 2026, 113 flights take off from Portugal and land in United States each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.

Question 10

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

Accepted Answer

There are 4 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 11

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 22% of their flights experiencing any sort of delay.

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

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 14

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

Accepted Answer

You could potentially save up to 3% on your flight if you consider stops on a Portugal to United States flight.

Question 15

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 16

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

Accepted Answer

As of February 2026, there are 16 flights per day flying from Portugal to United States. The most common time of day flights depart is 10:00AM, with 51% of flights taking off at noon.

Question 17

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 18

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 12 as of February 2026.

Question 19

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 20

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	$331
Fastest flight time	5h 45m
Direct flights	Every day
Airports in United States	4,296 airports

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom $266	Free Cancellation	Rating 7.1 2,133 reviews	Search TAP AIR PORTUGAL flights
Iberia	PriceFrom $300	Free Cancellation	Rating 7.0 3,103 reviews	Search Iberia flights
Delta	PriceFrom $351	Free Cancellation	Rating 7.9 8,139 reviews	Search Delta flights
American Airlines	PriceFrom $410	Free Cancellation	Rating 7.2 11,217 reviews	Search American Airlines flights
Air Europa	PriceFrom $436	Free Cancellation	Rating 6.9 586 reviews	Search Air Europa flights
British Airways	PriceFrom $463	Free Cancellation	Rating 6.7 7,714 reviews	Search British Airways flights
United Airlines	PriceFrom $474	Free Cancellation	Rating 7.4 9,236 reviews	Search United Airlines flights
KLM	PriceFrom $482	Free Cancellation	Rating 7.7 1,448 reviews	Search KLM flights
Virgin Atlantic	PriceFrom $499	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Brussels Airlines	PriceFrom $502	Free Cancellation	Rating 7.2 381 reviews	Search Brussels Airlines flights

Cheap flights from Portugal to the United States from $311

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to the United States departing on 5/7. 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 Portugal 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 afternoon when flights can be purchased for as low as $645. Try not to purchase tickets in the morning because they tend to be around $774. 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 4 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.

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

You could potentially save up to 3% on your flight if you consider stops on a Portugal to United States flight.

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

Iberia, American Airlines, and British Airways 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 27% 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 136 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 22% of their flights experiencing any sort of delay.

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

As of February 2026, there are 16 flights per day flying from Portugal to United States. The most common time of day flights depart is 10:00AM, with 51% of flights taking off at noon.

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

As of February 2026, 113 flights take off from Portugal and land in United States each week. The most common flight departure day for this route is Mon, with 20% 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

Compare and see reviews for airlines that fly from Portugal to United States with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Portugal to United States?

Can I find flights from Portugal to United States with flexible booking policies on momondo?

How can momondo help me find flights from Portugal to United States?

I’m not ready to book a flight from Portugal to United States right now. Can momondo alert me if prices change?

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