Cheap flights from San Francisco to Portugal from $248
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Portugal departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Francisco to Portugal
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Iberia flights from San Francisco to Portugal
Our best Iberia deals on San Francisco to Portugal flight tickets
TAP AIR PORTUGAL flights from San Francisco to Portugal
Our best TAP AIR PORTUGAL deals on San Francisco to Portugal flight tickets
See travel insights to Portugal from
How to get the cheapest flight ticket from San Francisco to Portugal
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Portugal?
The cheapest month to fly to Portugal from San Francisco is in February. Flight prices, which tend to average around $671, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from San Francisco during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $675.
What is the cheapest day to depart on your flight to Portugal?
According to our data, Monday is the cheapest day to fly to Portugal from San Francisco. The lowest ticket price found for a Monday departure recently was $723. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Thursday, with ticket prices averaging around $886.
What is the cheapest time of day to depart on your flight to Portugal?
Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from San Francisco to Portugal during this time can be as low as $791. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $969 per ticket.
What is the cheapest San Francisco to Portugal flight route?
Fly from San Francisco to Lisbon Humberto Delgado for the best San Francisco - Portugal flight prices
How far in advance should I book a flight to Portugal?
You are more likely to see cheaper flights to Portugal from San Francisco when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $871 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from San Francisco for as low as $813 on momondo.
What cabin class options are available on San Francisco to Portugal flights?
There are 4 cabin classes available to choose from on San Francisco to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from San Francisco to Portugal?
Iberia, TAP AIR PORTUGAL, and Vueling are the most popular carriers operating from San Francisco to Portugal
What airlines fly to Portugal?
TAP AIR PORTUGAL, United Airlines and Air Canada are the top three most popular airlines that fly to Portugal from San Francisco according to our data. TAP AIR PORTUGAL is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 17 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Francisco to Portugal on average per week?
6 flights are operational weekly from San Francisco to Portugal as of April 2025. The most popular departure day for this route is Tue, with 50% of flights per week taking off on this day.
Cheap San Francisco to Portugal flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Portugal
Best Price Found | $248 |
|---|---|
Fastest flight time | 9h 30m |
Direct flights | Tue, Wed, Thu, Fri, Sat and Sun |
Airports in Portugal | 7 airports |
When did momondo last update prices for flights from San Francisco Airport to Portugal?
Prices for flights from San Francisco Airport to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Airport to Portugal?
As of April 2025, there are 17 operators available to choose from for flights from San Francisco Airport to Portugal.
How old do you have to be to fly from San Francisco Airport to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Francisco to Portugal?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Francisco to Portugal is Airbus A330-900neo (42.49% of total bookings). The next most popular plane models are Boeing 777 (14.55%), Airbus A330 (8.45%), and Boeing 777-300ER (6.70%).
Best airlines flying from San Francisco to Portugal
Compare and see reviews for airlines that fly from San Francisco to Portugal with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $375 | Free Cancellation | Rating 7.1 1,852 reviews | |||
| PriceFrom $425 | Free Cancellation | Rating 4.0 4 reviews | |||
| PriceFrom $556 | Free Cancellation | Rating 7.0 2,700 reviews | |||
| PriceFrom $560 | Free Cancellation | Rating 7.8 1,334 reviews | |||
| PriceFrom $571 | Free Cancellation | Rating 6.7 7,046 reviews | |||
| PriceFrom $581 | Free Cancellation | Rating 6.6 6,837 reviews | |||
| PriceFrom $586 | Free Cancellation | Rating 7.5 1,588 reviews | |||
| PriceFrom $596 | Free Cancellation | Rating 7.3 1,349 reviews | |||
| PriceFrom $597 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $609 | Free Cancellation | Rating 7.1 1,160 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from San Francisco to Portugal?
It is quick and easy to find San Francisco to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.
Can I find flights from San Francisco to Portugal with flexible booking policies on momondo?
Yes. All flights to Portugal from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from San Francisco to Portugal?
Once you have performed a search for San Francisco to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from San Francisco to Portugal right now. Can momondo alert me if prices change?
If you are not ready to book a flight from San Francisco to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.