Cheap flights from the United States to Portugal from $174
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 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.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
KAYAK's recommended round-trip deals from the most popular airlines that fly from the United States to Portugal.
Recent one-way flight deals from the United States to Portugal
Flying one-way? These are some of the best deals recently discovered on momondo for flights from the United States to Portugal.
Recent last minute flight deals from the United States to Portugal
Planning a quick getaway from the United States to Portugal? These are the last-minute flight deals available now.
Recent direct flight deals from the United States to Portugal
If you prefer a non-stop journey, check out our latest direct flight deals to Portugal, so you can enjoy a seamless trip without layovers.
Icelandair flights from United States to Portugal
Our best Icelandair deals on United States to Portugal flight tickets
Icelandair![Icelandair]()
Aug 13![Icelandair]()
Aug 21
ORD10:15 pmChicago O'Hare Intl
17h 05m
1 stop
LIS9:20 pmLisbon Humberto Delgado
LIS10:20 pmLisbon Humberto Delgado
25h 55m
1 stop
ORD6:15 pmChicago O'Hare Intl
Icelandair![Icelandair]()
Aug 16![Icelandair]()
Aug 21
ORD10:15 pmChicago O'Hare Intl
17h 05m
1 stop
LIS9:20 pmLisbon Humberto Delgado
LIS10:20 pmLisbon Humberto Delgado
25h 55m
1 stop
ORD6:15 pmChicago O'Hare Intl
American Airlines flights from United States to Portugal
Our best American Airlines deals on United States to Portugal flight tickets
American Airlines![American Airlines]()
May 27![American Airlines]()
Jun 4
BOS7:25 amBoston Logan Intl
10h 45m
1 stop
LIS11:10 pmLisbon Humberto Delgado
LIS6:35 amLisbon Humberto Delgado
18h 15m
1 stop
BOS7:50 pmBoston Logan Intl
American Airlines![American Airlines]()
Jun 24![American Airlines]()
Jul 3
BOS8:10 pmBoston Logan Intl
14h 20m
1 stop
LIS3:30 pmLisbon Humberto Delgado
LIS7:20 amLisbon Humberto Delgado
14h 50m
1 stop
BOS5:10 pmBoston Logan Intl
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
Prices
Airlines
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 $579, 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 $680. 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 Monday, with ticket prices averaging around $871.
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 $809. 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 Boston Logan Intl to Lajes 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 26 weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $818 when searching 26 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 $769 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.
What is the cheapest airline that flies from United States to Portugal?
Vueling, Iberia, and TAP AIR PORTUGAL are the most popular carriers operating from United States to Portugal
What airlines fly to Portugal?
TAP AIR PORTUGAL, United Airlines and Azores Airlines 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 62% 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 day?
As of April 2025, there are 37 flights per day flying from United States to Portugal. The most common time of day flights depart is 4:00PM, with 73% of flights taking off in the afternoon.
How many flights depart from United States to Portugal on average per week?
As of April 2025, 261 flights take off from United States and land in Portugal each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.
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 | $174 |
|---|---|
Fastest flight time | 6h 25m |
Direct flights | Mon, Tue, Wed, Thu, Fri and Sun |
Airports in Portugal | 2 airports |
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 April 2025, 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 A330-900neo, making up 20.07% of the total bookings. Other popular models include Airbus A321neo with 18.89%, Boeing 787 Dreamliner with 9.97%, and Boeing 767-400 with 9.90%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $260 | Free Cancellation | Rating 4.0 4 reviews | |||
| PriceFrom $322 | Free Cancellation | Rating 7.3 3,767 reviews | |||
| PriceFrom $323 | Free Cancellation | Rating 7.3 1,335 reviews | |||
| PriceFrom $332 | Free Cancellation | Rating 6.9 101 reviews | |||
| PriceFrom $370 | Free Cancellation | Rating 7.6 1,269 reviews | |||
| PriceFrom $377 | Free Cancellation | Rating 7.5 1,580 reviews | |||
| PriceFrom $403 | Free Cancellation | Rating 7.1 1,151 reviews | |||
| PriceFrom $461 | Free Cancellation | Rating 6.9 509 reviews | |||
| PriceFrom $464 | Free Cancellation | Rating 7.0 481 reviews | |||
| PriceFrom $471 | Free Cancellation | Rating 7.0 2,674 reviews |
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.
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
Flights to Lisbonfrom $373
Flights to Portofrom $427
Flights to Funchalfrom $463
Flights to Farofrom $464
Flights to Ponta Delgadafrom $503
Flights to Lajesfrom $515
Flights to Hortafrom $558
Flights to Pico Islandfrom $535
Flights to Porto Santofrom $693
Flights to Velasfrom $563