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

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

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

Lufthansa, SWISS, and Finnair are the most popular carriers operating from United States to Portugal

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

As of February 2026, there are 26 flights per day flying from United States to Portugal. The most common time of day flights depart is 4:00PM, with 78% of flights taking off in the afternoon.

How long is the flight from United States to Portugal?

Average flight duration from United States to Portugal depends on which airport you fly into and out of. Flying from Boston to Lisbon is 6h 20m on average, while flying from New York to Lisbon is 6h 40m on average. Lisbon is the most popular airport in Portugal.

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

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

Historically, on average around 28% of flights between United States and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Portugal from United States according to our data. TAP AIR PORTUGAL is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 28 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

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

As of February 2026, 185 flights take off from United States and land in Portugal each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

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

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

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

As of February 2026, there are 27 operators available to choose from for flights from United States to Portugal.

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

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 United States to Portugal.

What documentation or ID do you need to fly to Portugal?

The necessary travel and health documents for your Portugal 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.

$216 Cheap Flights from the United States to Portugal in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from the United States to Portugal

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from the United States to Portugal

Enter your travel dates to find the best prices.

5:45 pm - 11:00 am

EWR

OPO

36h 15m

2 stops

9:30 am - 1:15 pm

OPO

EWR

32h 45m

2 stops

$420Scandinavian Airlines

Sat, Apr 18 - Sat, Apr 25

5:45 pm - 8:40 am

EWR

OPO

33h 55m

2 stops

6:20 pm - 2:59 pm

OPO

EWR

25h 39m

1 stop

$421Scandinavian Airlines

Thu, Apr 23 - Sun, Apr 26

5:15 pm - 8:40 am

EWR

OPO

34h 25m

1 stop

6:20 pm - 2:59 pm

OPO

EWR

25h 39m

1 stop

$423Scandinavian Airlines

Thu, Apr 23 - Sun, Apr 26

11:55 pm - 11:40 am

EWR

LIS

6h 45mnonstop

6:45 pm - 10:10 pm

LIS

EWR

8h 25mnonstop

$427TAP AIR PORTUGAL

Wed, Feb 18 - Tue, Feb 24

11:55 pm - 11:40 am

EWR

LIS

6h 45mnonstop

10:00 am - 11:05 pm

LIS

EWR

17h 05m

1 stop

$430TAP AIR PORTUGAL

Mon, Mar 2 - Tue, Mar 10

1:02 pm - 10:15 am

ORD

LIS

15h 13m

1 stop

5:00 am - 4:20 pm

LIS

ORD

16h 20m

1 stop

$482United Airlines

Sun, Feb 22 - Thu, Mar 19

9:18 pm - 10:30 am

ORD

LIS

31h 12m

1 stop

11:25 am - 8:00 am

LIS

ORD

26h 35m

1 stop

$483United Airlines

Sat, Apr 25 - Tue, May 5

9:40 pm - 8:00 am

BOS

LIS

6h 20mnonstop

5:30 am - 2:30 pm

LIS

BOS

13h 00m

1 stop

$504Delta

Tue, Mar 10 - Thu, Mar 19

9:40 pm - 8:00 am

BOS

LIS

6h 20mnonstop

5:30 am - 2:30 pm

LIS

BOS

13h 00m

1 stop

$505Delta

Tue, Mar 10 - Wed, Mar 18

4:15 pm - 10:05 am

SFO

LIS

33h 50m

2 stops

11:05 am - 11:59 pm

LIS

SFO

20h 54m

2 stops

$513British Airways

Mon, Apr 13 - Fri, Apr 24

American Airlines flights from United States to Portugal

Our best American Airlines deals on United States to Portugal flight tickets

American Airlines

Feb 18

MIA6:50 pmMiami

17h 50m

1 stop

LIS5:40 pmLisbon Humberto Delgado

Feb 24

LIS6:30 amLisbon Humberto Delgado

19h 15m

1 stop

MIA8:45 pmMiami

$482

American Airlines

Apr 21

MIA9:15 pmMiami

15h 40m

1 stop

LIS5:55 pmLisbon Humberto Delgado

Apr 28

LIS6:35 amLisbon Humberto Delgado

18h 50m

1 stop

MIA8:25 pmMiami

$483

American Airlines

Feb 8

MIA6:50 pmMiami

15h 00m

1 stop

LIS2:50 pmLisbon Humberto Delgado

Feb 20

LIS11:05 amLisbon Humberto Delgado

14h 50m

2 stops

MIA8:55 pmMiami

$505

Air Canada flights from United States to Portugal

Our best Air Canada deals on United States to Portugal flight tickets

Air Canada

Feb 18

MIA12:25 pmMiami

19h 55m

2 stops

LIS1:20 pmLisbon Humberto Delgado

Feb 24

LIS11:20 amLisbon Humberto Delgado

35h 04m

2 stops

MIA5:24 pmMiami

$495

Air Canada

Feb 21

ORD8:40 pmChicago O'Hare Intl

30h 40m

1 stop

LIS9:20 amLisbon Humberto Delgado

Mar 3

LIS11:20 amLisbon Humberto Delgado

26h 40m

2 stops

ORD8:00 amChicago O'Hare Intl

$505

Fly from

Fly to

Route

Depart

Return

Price

NewarkPorto

EWR - OPO

EWROPO

Newark

Sat 4/18

5:45 pm-11:00 am

2 stops36h 15m

Porto

Sat 4/25

9:30 am-1:15 pm

2 stops32h 45m

$420

NewarkPorto

EWR - OPO

EWROPO

Newark

Thu 4/23

5:45 pm-8:40 am

2 stops33h 55m

Porto

Sun 4/26

6:20 pm-2:59 pm

1 stop25h 39m

$421

NewarkPorto

EWR - OPO

EWROPO

Newark

Thu 4/23

5:15 pm-8:40 am

1 stop34h 25m

Porto

Sun 4/26

6:20 pm-2:59 pm

1 stop25h 39m

$423

NewarkLisbon

EWR - LIS

EWRLIS

Newark

Wed 2/18

11:55 pm-11:40 am

Nonstop6h 45m

Lisbon Humberto Delgado

Tue 2/24

6:45 pm-10:10 pm

Nonstop8h 25m

$427

NewarkLisbon

EWR - LIS

EWRLIS

Newark

Mon 3/2

11:55 pm-11:40 am

Nonstop6h 45m

Lisbon Humberto Delgado

Tue 3/10

10:00 am-11:05 pm

1 stop17h 05m

$430

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 2/22

1:02 pm-10:15 am

1 stop15h 13m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-4:20 pm

1 stop16h 20m

$482

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sat 4/25

9:18 pm-10:30 am

1 stop31h 12m

Lisbon Humberto Delgado

Tue 5/5

11:25 am-8:00 am

1 stop26h 35m

$483

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 3/10

9:40 pm-8:00 am

Nonstop6h 20m

Lisbon Humberto Delgado

Thu 3/19

5:30 am-2:30 pm

1 stop13h 00m

$504

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Tue 3/10

9:40 pm-8:00 am

Nonstop6h 20m

Lisbon Humberto Delgado

Wed 3/18

5:30 am-2:30 pm

1 stop13h 00m

$505

San FranciscoLisbon

SFO - LIS

SFOLIS

San Francisco

Mon 4/13

4:15 pm-10:05 am

2 stops33h 50m

Lisbon Humberto Delgado

Fri 4/24

11:05 am-11:59 pm

2 stops20h 54m

$513

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Portugal

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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from United States is in January. Flight prices, which tend to average around $537, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from United States during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $601.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Thursday is the cheapest day to fly to Portugal from United States. The lowest ticket price found for a Thursday departure recently was $517. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $758.

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

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from United States to Portugal during this time can be as low as $540. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $653 per ticket.

What is the cheapest United States to Portugal flight route?

Fly from New York John F Kennedy Intl to Lisbon Humberto Delgado for the best United States - Portugal flight prices

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $749 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from United States for as low as $709 on momondo.

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

There are 4 cabin classes available to choose from on United States to Portugal 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 United States to Portugal flights?

You could potentially save up to 10% on your flight if you consider stops on a United States to Portugal flight.

Cheap United States to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Portugal

Best Price Found	$224
Fastest flight time	4h 55m
Direct flights	Every day
Airports in Portugal	99 airports

The best one-way flight to Portugal from United States in the past 72 hours is $224. The best round-trip flight deal from United States to Portugal found on momondo in the last 72 hours is $458.

The fastest flight from United States to Portugal takes 4h 55m

Direct flights go from United States to Portugal every day.

There are 99 airports in Portugal. From United States there are direct flights to Lisbon Humberto Delgado (LIS).

Search flight deals

When did momondo last update prices for flights from United States to Portugal?
Prices for flights from United States to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from United States to Portugal?
As of February 2026, there are 27 operators available to choose from for flights from United States to Portugal.
How old do you have to be to fly from United States to Portugal?
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 United States to Portugal.
What documentation or ID do you need to fly to Portugal?
The necessary travel and health documents for your Portugal 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.
What is the most popular plane model from United States to Portugal?
Based on momondo bookings for flights between United States and Portugal, the leading plane model is Airbus A321neo, making up 18.55% of the total bookings. Other popular models include Boeing 787 Dreamliner with 12.75%, Boeing 767-300 (winglets) with 12.50%, and Airbus A330-900neo with 11.35%.

Best airlines flying from United States to Portugal

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

Airline	Rating	Free Cancellation	Price
Vueling	PriceFrom $78	Free Cancellation	Rating 7.1 1,239 reviews	Search Vueling flights
LEVEL	PriceFrom $226	Free Cancellation	Rating 0.0	Search LEVEL flights
SWISS	PriceFrom $257	Free Cancellation	Rating 7.6 1,867 reviews	Search SWISS flights
Scandinavian Airlines	PriceFrom $269	Free Cancellation	Rating 7.3 1,678 reviews	Search Scandinavian Airlines flights
Finnair	PriceFrom $316	Free Cancellation	Rating 7.6 1,357 reviews	Search Finnair flights
PLAY	PriceFrom $333	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Icelandair	PriceFrom $339	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
KLM	PriceFrom $366	Free Cancellation	Rating 7.7 1,450 reviews	Search KLM flights
Air Transat	PriceFrom $382	Free Cancellation	Rating 7.7 504 reviews	Search Air Transat flights
Air Europa	PriceFrom $392	Free Cancellation	Rating 6.9 588 reviews	Search Air Europa flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portugal from United States.

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

Yes. All flights to Portugal from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Portugal from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Portugal from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Portugal 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 3/9

Mon 3/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular cities

Other flights from the United States

Other flights to Portugal

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $380

Flights to Portofrom $364

Flights to Funchalfrom $431

Flights to Farofrom $426

Flights to Ponta Delgadafrom $431

Flights to Lajesfrom $508

Flights to Hortafrom $566

Flights to Pico Islandfrom $575

Flights to Porto Santofrom $551

Flights to Velasfrom $581

Cheap flights from the United States to Portugal from $216

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Portugal departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United States to Portugal

Recent round-trip flight deals from the United States to Portugal

Recent one-way flight deals from the United States to Portugal

Recent last minute flight deals from the United States to Portugal

Recent direct flight deals from the United States to Portugal

American Airlines flights from United States to Portugal

Our best American Airlines deals on United States to Portugal flight tickets

Air Canada flights from United States to Portugal

Our best Air Canada deals on United States to Portugal flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Portugal that are best for you.

See travel insights to Portugal from

How to get the cheapest flight ticket from United States to Portugal

What is the cheapest month to fly to Portugal?

What is the cheapest day to depart on your flight to Portugal?

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

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from United States to Portugal during this time can be as low as $540. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $653 per ticket.

What is the cheapest United States to Portugal flight route?

Fly from New York John F Kennedy Intl to Lisbon Humberto Delgado for the best United States - Portugal flight prices

How far in advance should I book a flight to Portugal?

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

There are 4 cabin classes available to choose from on United States to Portugal 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 United States to Portugal flights?

You could potentially save up to 10% on your flight if you consider stops on a United States to Portugal flight.

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

Lufthansa, SWISS, and Finnair are the most popular carriers operating from United States to Portugal

What airlines fly to Portugal?

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

Historically, on average around 28% of flights between United States and Portugal have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

What is the most punctual flight time for the United States to Portugal 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. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to Portugal 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 United States to Portugal on average per day?

As of February 2026, there are 26 flights per day flying from United States to Portugal. The most common time of day flights depart is 4:00PM, with 78% of flights taking off in the afternoon.

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

As of February 2026, 185 flights take off from United States and land in Portugal each week. The most common flight departure day for this route is Fri, with 19% of weekly flights taking off on this day.

How long is the flight from United States to Portugal?

Average flight duration from United States to Portugal depends on which airport you fly into and out of. Flying from Boston to Lisbon is 6h 20m on average, while flying from New York to Lisbon is 6h 40m on average. Lisbon is the most popular airport in Portugal.

Cheap United States to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Portugal

Best Price Found

Fastest flight time

Direct flights

Airports in Portugal

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

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

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

What documentation or ID do you need to fly to Portugal?

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

Best airlines flying from United States to Portugal

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

Why use momondo?

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

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

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

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

An easier way to manage your Portugal 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

United States flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year