Book round-trip flights to Portugal starting at $402

Now has never been a better time to book a flight to Europe for 2023. We’ve reported on multiple deals to various European cities over the past few weeks, and airlines are still continuing to slash fares to the continent.

The latest slate of deals includes round-trip fares to Portugal for as low as $402 — and you can fly to Lisbon, Porto or Faro. The travel dates are from January to March, with the exact dates varying by route.

These fares to Portugal are only expected to last a couple of days, so we recommend booking your tickets as soon as you can.

Deal basics

Airlines: Aer Lingus, American Airlines, British Airways, Delta Air Lines, Iberia, KLM, Lufthansa, Swiss, TAP and United Airlines.
Routes: Atlanta, Boston, Charlotte, Chicago, Dallas, Detroit, Miami, Minneapolis, New York City, Orlando, Washington, D.C., and other cities to Faro, Lisbon and Porto.
How to book: Determine your ideal dates through Google Flights, then book directly with the airline of your choice.
Travel dates: Generally from January to March; dates vary by route.
Book by: The next two to three days.

Kudos to Scott’s Cheap Flights for highlighting this deal. At $49 a year, the site’s Premium membership offers discounts of up to 90% and comes with a 14-day trial. The Elite membership also finds premium, business-class and first-class deals.

Sample flights

This set of marked-down flights has a lot of availability in smaller cities. For example, you can fly to Portugal from places like Des Moines, Iowa; Sioux Falls, South Dakota; and Little Rock, Arkansas. Of all the cities featured in this deal, Boston and New York City have the cheapest flights to Portugal starting at $402.

Here are some noteworthy flights we found:

• Iberia: Boston Logan International Airport (BOS) to Francisco Sá Carneiro Airport (OPO), starting at $402 (includes a layover in Madrid).
• Iberia: New York's John F. Kennedy International Airport (JFK) to OPO, starting at $402 (includes a layover in Madrid).
• TAP: Miami International Airport (MIA) to Faro Airport (FAO), starting at $427 (includes a layover in Lisbon).
• Aer Lingus: BOS to Humberto Delgado Airport (LIS), starting at $445 (includes a layover in Dublin).
• Aer Lingus: JFK to LIS, starting at $456 (includes a layover in Dublin).
• American and Iberia: Sioux Falls Regional Airport (SFD) to OPO, starting at $546 (includes layovers in Chicago and Madrid).
• American and Iberia: Des Moines International Airport (DSM) to LIS, starting at $550 (includes a layover in Madrid).
• American and Iberia: Bill and Hillary Clinton National Airport (LIT) to LIS, starting at $550 (includes layovers in Dallas and Madrid).

We recommend using Google Flights to find your best dates and then book your flights directly on the airline’s website since airlines tend to be more reliable in the event your flight is delayed, canceled or has a booking change.

For a flight from Boston to Lisbon on March 1, Aer Lingus’ 6:15 p.m. flight is the cheapest option available at $445. If you plan to return to Boston a week later, Aer Lingus offers a flight at 10:50 a.m. that keeps the fare the same. Both flights include a layover in Dublin.

Google Flights can show lower prices compared to what’s advertised on the airlines’ sites due to the availability of third-party booking sites. In this case, the fare is $445 if you book directly through Aer Lingus’ website, but Google Flights shows other booking sites with fares priced at $433.

The fares featured in this deal are only for basic economy. Aer Lingus’ basic economy, known as the airline’s Saver option, comes with a complimentary meal and allows passengers to bring a carry-on bag. Seat selection is not included in the fare.

If you decide to select seats, you’ll have to pay for four different seat selections on the round-trip flight. Seats from the Boston to Dublin segment cost anywhere from $29.99 to $114.99; seats from the Dublin to Lisbon segment range from $5.99 to $25.99. The most expensive seats are located near the exit rows and have extra legroom.

Maximize your purchase

Make sure to use cards that earn bonus points on airfare purchases like The Platinum Card® from American Express (5 points per dollar spent on airfare booked directly with the airline or through American Express Travel, on up to $500,000 on these purchases per calendar year), the Citi Prestige® Card (5 points per dollar spent on airfare), the Citi Premier® Card (3 points per dollar spent on airfare), the Chase Sapphire Reserve (3 points per dollar spent on airfare), the American Express® Gold Card (3 points per dollar spent on airfare when booked directly with the airline or through Amex Travel) or the Chase Sapphire Preferred Card (2 points per dollar spent on travel).

The information for the Citi Prestige Card has been collected independently by The Points Guy. The card details on this page have not been reviewed or provided by the card issuer.

Bottom line

Flights to Portugal can be expensive. Luckily, this deal discounts flights to the country by as much as 55%. Even though the cheap fares only apply to basic economy, which can be quite restrictive, the prices are still worth booking.

With these prices, you can save on airfare and use the extra money in your pocket to splurge on a fancier hotel or treat yourself to a wine tasting in Porto.