Cheap Flights from Stewart International (SWF) to Lisbon (LIS)

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Compare Stewart International to Lisbon flight deals

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Flight deals from Stewart International to Lisbon

Looking for a cheap last-minute deal or the best round-trip flight from Stewart International to Lisbon? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Stewart International to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Stewart International to Lisbon flights are currently cheapest in January.

Stewart International to Lisbon: Alternative routes

Compare routes from Stewart International to Lisbon below. You may find an airport to fly into that's cheaper, faster, or easier than Lisbon.

New York to Lisbon: Flight information

The things to know before you go.
Cheapest flight found$293
Cheapest month to flyFebruary

Finding cheap flights from Stewart International to Lisbon: Frequently asked questions

The best price we found for a round-trip flight from Stewart International to Lisbon is $376. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Stewart International to Lisbon. But we found flights with one or more stops from $376.
There are no flights flying from Stewart International to Lisbon, as of May 2025.
The cheapest month to fly from Stewart International to Lisbon is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Stewart International Airport to Lisbon Airport on Thursday, January 15, 2026.
No airlines currently offer direct flights between Stewart International Airport and Lisbon Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Lisbon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Fly Play offers the cheapest flight tickets to Lisbon.

Flying from Stewart International Airport (SWF) to Lisbon Portela Airport (LIS): what you need to know

  • Lisbon's timezone is UTC+0, which makes Lisbon four hours ahead of New York.

  • To ensure you get on your SWF to LIS flight, allow plenty of time to check in and find your gate. Turning up two hours before international departures and one hour before domestic flights is the standard rule.

  • Be prepared for longer lines in popular months like July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a wise move.

  • Opt for a stopover if you prefer to break up your flight. Simply uncheck 'Direct flights only' to look at all your options for tickets from Stewart International Airport to Lisbon Portela Airport. Keflavik International Airport is a popular stopover on the SWF to LIS route.

How to find the cheapest flights from Stewart International Airport (SWF) to Lisbon Portela Airport (LIS)

  • Right now, $293 is the lowest price we've found for a one-way Stewart International Airport to Lisbon Portela Airport flight. The best price for a return plane ticket is $376. Bear in mind that fares may change due to demand when booking.

  • Don't wait until the last moment. You're more likely to find cheap tickets from SWF to LIS if you book ahead. Airlines often have some amazing early bird deals.

  • The 'Whole month' tool shows you the cheapest flights from Stewart International Airport to Lisbon Portela Airport across the month. It's a great way to snap up a bargain if your travel plans aren't set in stone.

  • You don't need to check every day to see if fares have dropped when you create a Price Alert. We'll update you as soon as there's a change in price on cheap flights from SWF to LIS.

  • Discover the ideal flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Stewart International Airport to Lisbon Portela Airport, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Stewart International Airport (SWF)

  • You'll find SWF at 1180 1st St.

  • Stewart International Airport gets top marks for its on-time performance. 83.75% of flights that take off from SWF reach their destination on time.

  • Central New York to Stewart International Airport is around 75 miles. Depending on traffic, it'll take you about 1 hour 30 minutes to get there if you're catching a cab, ride-sharing or driving.

  • The trip when using public transport typically takes 1 hour 55 minutes.

  • Booked an early flight from Stewart International Airport to Lisbon Portela Airport? Avoid the stress of rushing to the airport (and sneak in some extra precious sleep) by choosing one of these hotels close to SWF:

Arriving at Lisbon Portela Airport (LIS)

  • The last thing you want is a lengthy journey to your hotel if you're getting in late on a Stewart International Airport to Lisbon Portela Airport flight. Stay at one of these accommodation options near LIS instead:

  • Pick up a Lisbon Portela Airport rental car and explore Lisbon and beyond with your own set of wheels. Klass Wagen, Goldcar and OK Mobility are leading providers you can book with here.

  • To secure the lowest price, book your ride from Lisbon Portela Airport around two weeks before you set off.

Getting from Lisbon Portela Airport (LIS) to central Lisbon

  • Lisbon Portela Airport to central Lisbon has a drive time of about 20 minutes. It's approximately 6 miles away.

  • Getting there on public transport will take you roughly 1 hour.

When to fly to Lisbon Portela Airport (LIS)

  • It's time to choose your trip dates for your flight from Stewart International Airport to Lisbon Portela Airport. June is the most popular month to head to Lisbon. If you like a quieter vibe, go in January.

  • The warmest month in Lisbon is August, with the temperature ranging between 61ºF and 84ºF. Book your flights from Stewart International Airport to Lisbon Portela Airport in this month if you enjoy this type of weather.

  • Look for cheap tickets from SWF to LIS in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 46ºF and 61ºF on average.

Explore more of Portugal

  • Porto is just one of the many places in Portugal waiting to be discovered once you've seen the sights of Lisbon. Around 170 miles away to the north, its best attractions include Livraria Lello, Ribeira District and The Douro River.

  • If you're looking to explore another corner of Portugal, consider Amadora, about 5 miles north-west of Lisbon. Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.