Submit feedbackSubmit feedbackComplete travel information for your September journey
September departures from Raleigh-Durham International Airport (RDU) to Humberto Delgado Airport (LIS) combine lower late-summer passenger volumes with the tail end of Atlantic hurricane season, so plan for possible weather-related disruptions. Book parking and pre-check options in advance to save time; rideshare and shuttle services remain the most convenient transfers from Raleigh, Durham, Chapel Hill, and nearby Cary. For a smooth start to your transatlantic journey, arrive 2.5–3 hours early for international check-in, verify passport validity, and consider travel insurance for September travel. CTA: Compare flights from Raleigh-Durham International Airport (RDU) to Lisbon now and reserve parking and lounge access early to secure the best rates.
The most reliable options to reach Raleigh-Durham International Airport (RDU) from downtown Raleigh are rideshare services, airport shuttles, or driving via I-40/US-70 depending on traffic. Allow 20–35 minutes in normal traffic and 40–60 minutes during peak commuting hours; parking options include hourly, daily, and economy lots. For budget-conscious travelers, use the RDU Airport Shuttle or long-term economy parking and book early to secure a spot.
For international flights from Raleigh-Durham International Airport (RDU) to Lisbon in September, arrive at least 2.5–3 hours before departure to allow extra time for passport control and security screening. Have your passport valid for at least six months, printed or mobile boarding pass, and be prepared for random document checks; September crowds can increase wait times, so consider TSA PreCheck if available. Pack liquids and valuables according to TSA rules and check your airline's specific international baggage allowances.
Raleigh-Durham International Airport (RDU) offers hourly, daily, and economy parking lots along with valet services; the long-term economy lot is typically the cheapest for a 7–10 day trip and has shuttle service to terminals. Reserve parking online when possible to guarantee a bay and take advantage of discounted pre-booking rates. For extended stays, consider off-site private lots near RDU with shuttle service for additional savings.
Travelers flying from Raleigh-Durham International Airport (RDU) commonly access nearby cities like Raleigh, Durham, Chapel Hill, Cary, and Greensboro, plus regional destinations such as Wilmington and the Outer Banks for coastal trips. If connecting to other hubs, Charlotte and Richmond are frequent transfers. Use RDU as a gateway for both business travel to Research Triangle Park and leisure trips to North Carolina beaches and mountains.
In September, consider hurricane season impacts along the Atlantic; monitor weather and airline alerts before departing Raleigh-Durham International Airport (RDU) as storms can disrupt flights and connections. September often sees lower summer crowds but unpredictable weather—pack a flexible itinerary and book refundable or changeable fares if traveling during peak storm windows. Check the FAA and airline notices on the day of travel and enroll in flight status alerts.
Raleigh-Durham International Airport (RDU) features several dining choices including local Southern fare, grab-and-go options, and coffee shops; for comfort before a long-haul flight to Lisbon, prioritize lounges and full-service restaurants in the terminal. Consider the airline lounges (if eligible) or pay-per-use lounges for quiet workspaces, complimentary snacks, and showers. Arrive early to enjoy a relaxed meal and charge devices before the overnight segment.
September is one of the best months to arrive at Humberto Delgado Airport (LIS) thanks to pleasant temperatures and fewer summer crowds. After immigration and luggage collection, travelers can reach Lisbon city center quickly via the metro (red line), Aerobus, or licensed taxis; trains to Sintra and Cascais are accessible from central stations for perfect day trips. CTA: Book your transfer from Humberto Delgado Airport (LIS) in advance to secure early check-in or comfortable arrival services and make the most of mild September weather.
On arrival at Humberto Delgado Airport (LIS), expect passport control and potential customs checks; EU passport holders use eGates when eligible while non-EU travelers queue at staffed booths. Collect checked baggage in the designated carousel area and follow signage for ground transportation; taxis, metro, and Aerobus are convenient options to central Lisbon. Have your onward accommodation address ready for immigration queries and factor 30–60 minutes for processing, longer during busy periods.
From Humberto Delgado Airport (LIS), reach Sintra by taking the metro or taxi to Rossio or Oriente and then a regional train, with total transfer times of about 45–75 minutes. For Cascais, take the metro or taxi to Cais do Sodré train station, then a scenic 30–40 minute coastal train; September offers pleasant weather for day trips. Consider renting a car at Humberto Delgado Airport (LIS) for maximum flexibility, especially if you plan to visit Sintra, Cascais, or the Lisbon coastline on the same day.
September in Lisbon features music festivals, cultural events, and food fairs as the city winds down from peak summer tourism. Look for Fado nights in Alfama, outdoor music festivals, and gastronomic markets that showcase Portuguese cuisine and wines. For day trips, check Sintra's cultural programs or Cascais' seaside events — all within easy reach from Humberto Delgado Airport (LIS). CTA: Explore Lisbon event calendars for September and plan your RDU to LIS trip around local festivals for a richer travel experience.
September is often one of the best months to fly from Raleigh-Durham International Airport (RDU) to Humberto Delgado Airport (LIS) due to warm weather in Lisbon, reduced summer crowds, and competitive airfare deals. Aim for mid-week departures (Tuesday–Thursday) and red-eye transatlantic legs to maximize daytime exploration upon arrival. If flexibility allows, avoid peak holiday weekends and consider shoulder dates to secure better fares and quieter sights in Lisbon. CTA: Find optimal September travel dates from RDU to LIS and book early to lock in favorable rates.
Nonstop flights (if available seasonally) significantly reduce total travel time and increase convenience but may come at a premium compared with one-stop itineraries; many RDU to LIS travelers in September opt for one-stop routings through major US or European hubs. Connecting flights can be cheaper and provide more schedule flexibility, but choose layovers with ample minimum connection time to avoid missed connections, especially during the hurricane-prone fall season. CTA: Compare nonstop and one-stop RDU to LIS flights for your September trip to balance cost and convenience.
Common itinerary builders for RDU to LIS include US carriers like American or Delta combined with European partners such as TAP Air Portugal. TAP often offers direct Lisbon connections from US gateways and Portuguese-focused service, while US carriers can provide convenient domestic legs from Raleigh-Durham International Airport (RDU) to Atlantic hubs before the transatlantic flight. Compare baggage allowances, seat selection fees, and lounge access when booking in September and consider loyalty program benefits for long-haul comfort. CTA: Use an airline comparison tool to evaluate RDU to LIS carriers and pick the best September itinerary for your needs.
Pack layers for warm September days and cooler evenings in Lisbon, include comfortable walking shoes for cobbled streets, and bring a compact rain jacket for occasional showers. Because September overlaps with Atlantic hurricane season, monitor forecasts before departing Raleigh-Durham International Airport (RDU) and choose refundable or flexible fares where possible. Keep clear copies of travel documents, register travel plans with family or the Smart Traveler Enrollment Program (STEP), and book transfers from Humberto Delgado Airport (LIS) in advance to avoid arrival-day stress. CTA: Review safety and packing checklists for RDU to LIS travel and prepare now for a smoother September trip.
There are limited nonstop options from Raleigh-Durham International Airport (RDU) to Humberto Delgado Airport (LIS); typical itineraries involve one connection, with total travel time ranging from about 10.5 to 16+ hours depending on layover length. Common layover hubs include Philadelphia, New York (JFK/EWR), Boston, or European gateways like Madrid, London, or Lisbon via code-share partners. For shorter total travel time, choose quick overnight transatlantic segments and minimize short-haul connections; in September, opt for flights that avoid tight connections to reduce weather-related disruption risk. CTA: Check updated schedules and select the best RDU to LIS flight times for your September trip.
To score cheap flights from Raleigh-Durham International Airport (RDU) to Humberto Delgado Airport (LIS) in September, search 6–8 weeks ahead and be flexible on dates and routes. Mid-week departures, red-eye flights, and itineraries with single layovers in major European hubs often yield the best fares. Enable fare alerts, compare nearby departure options (like Raleigh vs. Charlotte if feasible), and consider booking open-jaw itineraries or separate legs to lower total cost. CTA: Set up price alerts for RDU to LIS September flights and compare carriers to lock in the best deal.
Book your economy class flight from Durham (RDU) to Lisbon (LIS)and save money on your travel. Compare all flight options to find the best deal for your september trip.
Starting from $808
Book your economy class flight from Durham (RDU) to Lisbon (LIS)and save money on your travel. Compare all flight options to find the best deal for your september trip.
Planning a trip from Durham (RDU) to Lisbon (LIS) in september? SlickTrip helps you find the cheapest economy class flights with our comprehensive flight comparison tool. Whether you prefer direct flights for convenience or multi-stop flights for savings, we have options for every budget and schedule.
September in Lisbon typically brings warm, sunny days and mild evenings, making arrivals at Humberto Delgado Airport (LIS) pleasant with low chances of rain compared to winter months. Reduced summer heat and fewer crowds make transport and sightseeing easier on arrival, but occasional Atlantic storms can still appear—check local forecasts before travel. Pack a light jacket for evenings and sunscreen for daytime exploration after touchdown.
Humberto Delgado Airport (LIS) offers several airline lounges and pay-per-use lounges in the arrivals and departure areas where available, perfect for freshening up after a long-haul flight from Raleigh-Durham International Airport (RDU). Some lounges provide showers, baggage storage, and quiet zones; check your airline benefits or book access online in advance to guarantee entry. Fast-track immigration is sometimes available for certain ticket classes or as an add-on — verify with your carrier before travel.
US passport holders visiting Portugal for tourism or business for up to 90 days do not need a visa for short stays within the Schengen Area, including arrivals at Humberto Delgado Airport (LIS). Ensure your passport is valid for at least three months beyond your planned departure date from the Schengen Area and carry proof of onward travel and accommodation. For non-US citizens or longer stays, consult Portuguese consulate guidelines and apply for the appropriate visa well in advance.
For September arrivals at Humberto Delgado Airport (LIS), start with a relaxed half-day exploring central Lisbon neighborhoods like Baixa, Chiado, and Alfama to acclimate to the time change and weather. Take the iconic tram 28 for a scenic introduction or head to Belém for pastries and river views; reserve evening reservations for Fado in Bairro Alto to experience Portuguese culture. Keep the first day light to recover from jet lag and plan day trips to Sintra or Cascais for the following days.