Cheap flights from Helsinki to Sintra-Cascais Natural Park from CA $158

View CA $158 flight on Mon, Nov. 3, 2025Opens in a new window

Popular airlines from Helsinki to Sintra-Cascais Natural Park

  • Lufthansa

    Lufthansa

  • Finnair

    Finnair

  • British Airways

    British Airways

  • Iberia

    Iberia

  • KLM

    KLM

  • Brussels Airlines

    Brussels Airlines

  • TAP Portugal

    TAP Portugal

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Helsinki (HEL) to Sintra-Cascais Natural Park (LIS)

Prices were available within the past 7 days and start at CA $158 for one-way flights and CA $292 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, Nov. 3 - Thu, Nov. 6
HEL
Helsinki
LIS
Lisbon
CA $292 Roundtrip, found 2 days ago
CA $292
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Nov. 3 from Helsinki to Lisbon, returning Thu, Nov. 6, priced at CA $292 found 2 days ago
KLM
Mon, Nov. 3 - Thu, Nov. 6
HEL
Helsinki
LIS
Lisbon
CA $296 Roundtrip, found 2 days ago
CA $296
Roundtrip
found 2 days ago
Select KLM flight, departing Mon, Nov. 3 from Helsinki to Lisbon, returning Thu, Nov. 6, priced at CA $296 found 2 days ago
Air France
Mon, Nov. 3 - Thu, Nov. 6
HEL
Helsinki
LIS
Lisbon
CA $342 Roundtrip, found 2 days ago
CA $342
Roundtrip
found 2 days ago
Select Air France flight, departing Mon, Nov. 3 from Helsinki to Lisbon, returning Thu, Nov. 6, priced at CA $342 found 2 days ago
Norwegian Air Sweden
Thu, Aug. 21 - Thu, Aug. 28
HEL
Helsinki
LIS
Lisbon
CA $380 Roundtrip, found 17 hours ago
CA $380
Roundtrip
found 17 hours ago
Select Norwegian Air Sweden flight, departing Thu, Aug. 21 from Helsinki to Lisbon, returning Thu, Aug. 28, priced at CA $380 found 17 hours ago
Scandinavian Airlines
Wed, Nov. 5 - Sun, Nov. 9
HEL
Helsinki
LIS
Lisbon
CA $518 Roundtrip, found 2 days ago
CA $518
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Wed, Nov. 5 from Helsinki to Lisbon, returning Sun, Nov. 9, priced at CA $518 found 2 days ago
TAP Portugal
Mon, Nov. 3 - Thu, Nov. 6
HEL
Helsinki
LIS
Lisbon
CA $681 Roundtrip, found 2 days ago
CA $681
Roundtrip
found 2 days ago
Select TAP Portugal flight, departing Mon, Nov. 3 from Helsinki to Lisbon, returning Thu, Nov. 6, priced at CA $681 found 2 days ago
*Available to Expedia members.