Cheap flights from California to Porto from $238
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Porto departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from California to Porto
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 Porto?
The month of February is, on average, the cheapest month to fly to Porto from California, with most prices found around $662. If you aren’t able to travel during the month of February, then book flights to Porto from California during October instead. Flights to Porto in October, while not as cheap as those in February, still average around $756.
What is the cheapest day to depart on your flight to Porto?
The cheapest day to depart on your flight to Porto is on a Wednesday when prices can be found for as low as $942. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,197. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.
What is the cheapest time of day to depart on your flight to Porto?
In the evening is the cheapest time of day to fly from California to Porto when you can find flight prices for as low as $954. Flying to Porto in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,172 on average. Flights to Porto from California in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Porto?
You are more likely to see cheaper flights to Porto from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $963 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from California for as low as $772 on momondo.
What is the cheapest airline that flies from California to Porto?
TAP AIR PORTUGAL and Iberia are the most popular carriers operating from California to Porto
What airlines fly to Porto?
United Airlines, TAP AIR PORTUGAL and SWISS are the top three most popular airlines that fly to Porto from California according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 15 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.
Cheap California to Porto flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from California to Porto
When did momondo last update prices for flights from California to Porto Airport?
Prices for flights from California to Porto Airport refresh daily.
How many operators does momondo search for flights from California to Porto Airport?
As of July 2025, there are 15 operators available to choose from for flights from California to Porto Airport.
How old do you have to be to fly from California to Porto Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from California to Porto
Compare and see reviews for airlines that fly from California to Porto with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $421 | Free Cancellation | Rating 4.0 4 reviews | |||
| PriceFrom $502 | Free Cancellation | Rating 7.1 1,170 reviews | |||
| PriceFrom $540 | Free Cancellation | Rating 7.0 2,816 reviews | |||
| PriceFrom $547 | Free Cancellation | Rating 6.8 7,204 reviews | |||
| PriceFrom $553 | Free Cancellation | Rating 8.0 7,973 reviews | |||
| PriceFrom $570 | Free Cancellation | Rating 7.1 1,912 reviews | |||
| PriceFrom $574 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $610 | Free Cancellation | Rating 7.5 1,654 reviews | |||
| PriceFrom $624 | Free Cancellation | Rating 7.3 1,413 reviews | |||
| PriceFrom $648 | Free Cancellation | Rating 7.8 1,366 reviews |
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from California to Porto?
It is quick and easy to find California to Porto 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 Porto that suits you.
Can I find flights from California to Porto with flexible booking policies on momondo?
momondo does allow users to show only those flights to Porto from California which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from California to Porto?
momondo helps you find the best flight between California and Porto by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from California to Porto right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Porto from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.