How to find the cheapest flight from
Seattle (SEA) to Portugal
How far in advance should I book a flight from Seattle to Portugal?
Travelers have found it’s best to book a flight 61 days in advance to save up to 78% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Portugal 1-2 weeks in advance for as low as $1313, or $1956 for flights within the next 24 hours.
What is the cheapest month to fly from Seattle to Portugal?
Flights from Seattle to Portugal lean towards being more expensive in August. Prices are generally better when you fly from Seattle to Portugal in February, with the cheapest ticket starting at $497.
One-way flights to Portugal from Seattle
The cheapest one-way flights from Seattle to Portugal
3:20 pm - 4:05 pm
4:17 am - 2:50 pm
3:12 am - 12:45 pm
TAP AIR PORTUGAL
Related info for your journey
Useful info, stats and facts about Seattle to Portugal flights.
Destination information for Portugal
Things to know before you go. Useful info for your trip from Seattle to Portugal
Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)
Cascais Aerodrome (CAT)