Cheap Flights from San Francisco (SFO) to Cascais (CAT)

Popular airlines from San Francisco Intl. Airport (SFO) to Cascais (CAT)

Alternative airports near Cascais

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Humberto Delgado LIS. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $1,014
LIS
Humberto Delgado
Cheapest
Average driving time to city center24 min
Flights from $1,014

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT) cost?
Lock in a cheap one-way flight or cheap return flight from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT)?
The cheapest month to fly from SFO to CAT is , when demand is low. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from SFO to CAT. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT)?
Direct flights from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SFO to CAT?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT)?
To touch down at Cascais Airport (CAT) on time, opt for a flight that takes off from San Francisco Intl. Airport (SFO) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Lisbon District from San Francisco Intl. Airport (SFO)?
If you're taking a direct flight from San Francisco Intl. Airport (SFO) to Lisbon District, Humberto Delgado Airport (LIS) is the only airport you can land at.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT) last-minute?
Last-minute bookings from SFO to CAT are usually more expensive. For the cheapest rates, start searching for flights as early as possible. That being said, if your travel plans are flexible, you may score a cheap fare right before you leave.
Is it cheaper to book a SFO to CAT flight and hotel package?
Compared with arranging flights and hotels separately, booking a SFO to CAT flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one convenient place takes the hassle out of travel planning. Just pick your flights and select from our wide range of stays, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Cascais Airport (CAT)?
If you reserved your SFO to CAT flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Travel information

Travel information

Origin airport
San Francisco Intl.
Destination airport
Cascais
Distance
5661 mi

Book with confidence

Book with confidence

San Francisco to Cascais Flights

The cheapest times to fly from San Francisco to Cascais

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Cascais are during the month of . You can find some of the cheapest flights from San Francisco to Cascais with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Cascais

Sunday is one of the best days to book for cheap flights from San Francisco to Cascais: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Cascais

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Cascais in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Cascais flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Cascais airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Francisco to Cascais Flights

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*Available to One Key members.