A coastal cliff with a lighthouse, rocky shoreline, and turbulent sea.

Cheap Flights to Costa Alentejana from HK$422

View HK$422 flight on Sun, 27 Sept 2026Opens in a new window

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Cheap round-trip flights to Costa Alentejana

Prices were available within the past 7 days and start at HK$422 for one-way flights and HK$936 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

easyJet
Vueling Airlines
TAP Portugal
British Airways
Swiss International Air Lines

Frequently asked questions

How do I find cheap flights to Costa Alentejana that have flexible change policies?
When it comes to traveling these days, flexibility is a must. That's why we've added a "No change fee" search function to help you locate flexible, affordable airfares to Costa Alentejana. It's near the top left of your screen under the "Flexible change policies" subheading.
Which airlines fly to Costa Alentejana?
Book a seat with one of these airlines and the dynamic region of Costa Alentejana will be all yours to explore:
  • TAP Portugal - 251 flights to or near Costa Alentejana each month, including 251 flights to Humberto Delgado Airport (LIS) per month.
  • Delta Air Lines - 60 flights to or near Costa Alentejana each month, including 60 flights to Humberto Delgado Airport (LIS) per month.
  • United Airlines - 60 flights to or near Costa Alentejana each month, including 60 flights to Humberto Delgado Airport (LIS) per month.
How can I find cheap tickets to Costa Alentejana?
One of the best ways to nab cheap tickets to Costa Alentejana is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. It will bring up the cheapest prices for nearby days. The lowest price for a flight to Costa Alentejana in the last seven days was HK$936. Booking ahead of time will generally help you score an even bigger bargain.
How much is a flight to Costa Alentejana?
If you were flying one way from London (LTN), you could've landed a cheap seat for just HK$422 in the last seven days. Return flights to Costa Alentejana ranged from HK$936 to HK$3,819 over the same period.
What are the most popular airports to fly into in Costa Alentejana?
Get ready to pack your bags and jet into Humberto Delgado Airport (LIS), Costa Alentejana's main flight hub. Book a ticket on one of the 403 flights that land at this awesome destination each month.
When is the cheapest time to fly to Costa Alentejana?
Take off to Costa Alentejana early in the week and you'll usually be rewarded more economical fares. Tuesday is generally the cheapest day to jump on a plane, followed closely by Monday. If you want to avoid the priciest flights, steer clear of Saturdays.
How much is a plane ticket to Costa Alentejana?
In the last seven days, airfares to Costa Alentejana fluctuated between HK$936 and HK$3,819. Prices tend to go up over time, so book an awesome deal today.
What months are the cheapest to book a flight to Costa Alentejana?
February is the most affordable month to purchase a seat for your Costa Alentejana break. Airfares cost the most throughout the busy month of December, so avoid this time if you can.

Travel information

Destination airport
Humberto Delgado
Destination airport IATA code
LIS
Destination city name
Lisbon
Return price
HK$936

Trending flights to Costa Alentejana

Prices were available within the past 7 days and start at HK$422 for one-way flights and HK$936 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
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