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Cheap flights from the United States to Portugal from $188

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 10/12. 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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Find the cheapest flights from the United States to Portugal

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

Multiple Airlines Logo
2:20 pm - 4:55 pmLGA-LIS
21h 35m3 stops
Multiple Airlines Logo
10:05 pm - 6:30 pmLIS-LGA
25h 25m3 stops
$478Multiple Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Delta Logo
8:00 pm - 8:00 amJFK-LIS
7h 00mnonstop
Delta Logo
12:20 pm - 11:45 pmLIS-JFK
15h 25m1 stop
$478Delta
Find Deal
Mon, Oct 6 - Fri, Oct 31
TAP AIR PORTUGAL Logo
11:50 pm - 12:50 pmMIA-LIS
8h 00mnonstop
TAP AIR PORTUGAL Logo
5:25 pm - 10:05 pmLIS-MIA
9h 40mnonstop
$482TAP AIR PORTUGAL
Find Deal
Sun, Nov 9 - Sun, Nov 23
United Airlines Logo
9:34 pm - 10:15 amEWR-LIS
31h 41m1 stop
United Airlines Logo
5:00 am - 8:30 pmLIS-EWR
20h 30m2 stops
$483United Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
British Airways Logo
9:40 pm - 9:05 amMIA-LIS
30h 25m1 stop
British Airways Logo
11:05 am - 9:35 pmLIS-MIA
15h 30m1 stop
$484British Airways
Find Deal
Sun, Nov 23 - Fri, Dec 5
United Airlines Logo
9:00 pm - 11:30 pmJFK-LIS
45h 30m2 stops
United Airlines Logo
5:00 am - 4:40 pmLIS-JFK
16h 40m2 stops
$485United Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 23
TAP AIR PORTUGAL Logo
10:50 pm - 9:35 amEWR-LIS
6h 45mnonstop
TAP AIR PORTUGAL Logo
4:00 pm - 11:00 pmLIS-EWR
11h 00m1 stop
$487TAP AIR PORTUGAL
Find Deal
Sat, Oct 25 - Sat, Nov 1
British Airways Logo
10:30 pm - 8:05 pmMIA-LIS
16h 35m1 stop
British Airways Logo
6:45 pm - 8:45 pmLIS-MIA
31h 00m1 stop
$487British Airways
Find Deal
Sun, Nov 2 - Mon, Nov 10
American Airlines Logo
4:55 pm - 8:50 amORD-LIS
9h 55m1 stop
American Airlines Logo
7:05 am - 3:25 pmLIS-ORD
14h 20m1 stop
$520American Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
American Airlines Logo
9:45 pm - 2:55 pmORD-LIS
12h 10m1 stop
American Airlines Logo
11:05 am - 7:50 pmLIS-ORD
14h 45m2 stops
$550American Airlines
Find Deal
Mon, Mar 9 - Wed, Apr 8

KLM flights from United States to Portugal

Our best KLM deals on United States to Portugal flight tickets
KLM
Oct 14
LGA12:59 pmNew York LaGuardia
16h 46m
1 stop
LIS10:45 amLisbon Humberto Delgado
Oct 21
LIS9:20 amLisbon Humberto Delgado
15h 16m
2 stops
LGA7:36 pmNew York LaGuardia
$499
Find similar
KLM
Oct 23
MIA3:33 pmMiami
11h 27m
1 stop
LIS8:00 amLisbon Humberto Delgado
Nov 6
LIS10:00 amLisbon Humberto Delgado
18h 19m
1 stop
MIA11:19 pmMiami
$506
Find similar
KLM
Sep 25
ORD4:15 pmChicago O'Hare Intl
12h 40m
1 stop
LIS10:55 amLisbon Humberto Delgado
Oct 16
LIS12:45 pmLisbon Humberto Delgado
14h 34m
1 stop
ORD9:19 pmChicago O'Hare Intl
$641
Find similar

Brussels Airlines flights from United States to Portugal

Our best Brussels Airlines deals on United States to Portugal flight tickets
Brussels Airlines
Sep 28
JFK6:10 pmNew York John F Kennedy Intl
19h 50m
1 stop
LIS7:00 pmLisbon Humberto Delgado
Oct 6
LIS7:55 pmLisbon Humberto Delgado
22h 05m
1 stop
JFK1:00 pmNew York John F Kennedy Intl
$496
Find similar
Brussels Airlines
Oct 14
JFK5:30 pmNew York John F Kennedy Intl
20h 30m
2 stops
LIS7:00 pmLisbon Humberto Delgado
Oct 20
LIS7:55 pmLisbon Humberto Delgado
22h 05m
1 stop
JFK1:00 pmNew York John F Kennedy Intl
$505
Find similar
Brussels Airlines
Oct 29
JFK4:55 pmNew York John F Kennedy Intl
15h 55m
2 stops
LIS12:50 pmLisbon Humberto Delgado
Nov 8
LIS7:25 pmLisbon Humberto Delgado
22h 55m
1 stop
JFK1:20 pmNew York John F Kennedy Intl
$506
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to Portugal 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from the United States to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkLisbon

LGA - LIS

LGALIS

New York LaGuardia

Tue 10/14

2:20 pm-4:55 pm

3 stops21h 35m

Lisbon Humberto Delgado

Tue 10/21

10:05 pm-6:30 pm

3 stops25h 25m

$478

New YorkLisbon

JFK - LIS

JFKLIS

New York John F Kennedy Intl

Mon 10/6

8:00 pm-8:00 am

Nonstop7h 00m

Lisbon Humberto Delgado

Fri 10/31

12:20 pm-11:45 pm

1 stop15h 25m

$478

MiamiLisbon

MIA - LIS

MIALIS

Miami

Sun 11/9

11:50 pm-12:50 pm

Nonstop8h 00m

Lisbon Humberto Delgado

Sun 11/23

5:25 pm-10:05 pm

Nonstop9h 40m

$482

NewarkLisbon

EWR - LIS

EWRLIS

Newark

Wed 11/26

9:34 pm-10:15 am

1 stop31h 41m

Lisbon Humberto Delgado

Mon 12/1

5:00 am-8:30 pm

2 stops20h 30m

$483

MiamiLisbon

MIA - LIS

MIALIS

Miami

Sun 11/23

9:40 pm-9:05 am

1 stop30h 25m

Lisbon Humberto Delgado

Fri 12/5

11:05 am-9:35 pm

1 stop15h 30m

$484

New YorkLisbon

JFK - LIS

JFKLIS

New York John F Kennedy Intl

Fri 11/14

9:00 pm-11:30 pm

2 stops45h 30m

Lisbon Humberto Delgado

Sun 11/23

5:00 am-4:40 pm

2 stops16h 40m

$485

NewarkLisbon

EWR - LIS

EWRLIS

Newark

Sat 10/25

10:50 pm-9:35 am

Nonstop6h 45m

Lisbon Humberto Delgado

Sat 11/1

4:00 pm-11:00 pm

1 stop11h 00m

$487

MiamiLisbon

MIA - LIS

MIALIS

Miami

Sun 11/2

10:30 pm-8:05 pm

1 stop16h 35m

Lisbon Humberto Delgado

Mon 11/10

6:45 pm-8:45 pm

1 stop31h 00m

$487

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Fri 12/5

4:55 pm-8:50 am

1 stop9h 55m

Lisbon Humberto Delgado

Fri 12/12

7:05 am-3:25 pm

1 stop14h 20m

$520

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Mon 3/9

9:45 pm-2:55 pm

1 stop12h 10m

Lisbon Humberto Delgado

Wed 4/8

11:05 am-7:50 pm

2 stops14h 45m

$550

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

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

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 $589, 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 $615.

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 $495. 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 $802.

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 afternoon. Flights from United States to Portugal during this time can be as low as $740. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,103 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 $788 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 $719 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 1% 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

$187

Fastest flight time

6h 20m

Direct flights

Every day

Airports in Portugal

1 airport
The best one-way flight to Portugal from United States in the past 72 hours is $187. The best round-trip flight deal from United States to Portugal found on momondo in the last 72 hours is $419.
The fastest flight from United States to Portugal takes 6h 20m
Direct flights go from United States to Portugal every day.
There is 1 airport near Portugal: 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?

  • 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?

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
VuelingPriceFrom $165Free CancellationRating
7.1
1,185 reviews
Search Vueling flights
LEVELPriceFrom $226Free CancellationRating
4.0
4 reviews
Search LEVEL flights
Scandinavian AirlinesPriceFrom $269Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
SWISSPriceFrom $310Free CancellationRating
7.6
1,737 reviews
Search SWISS flights
PLAYPriceFrom $333Free CancellationRating
7.0
103 reviews
Search PLAY flights
IcelandairPriceFrom $339Free CancellationRating
7.0
544 reviews
Search Icelandair flights
IberiaPriceFrom $358Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
FinnairPriceFrom $370Free CancellationRating
7.6
1,324 reviews
Search Finnair flights
Air EuropaPriceFrom $411Free CancellationRating
7.0
556 reviews
Search Air Europa flights
LufthansaPriceFrom $457Free CancellationRating
6.8
7,407 reviews
Search Lufthansa 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.

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