Cheap Flights from Porto to San Diego
No deal from Porto to San Diego has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from Porto to San Diego, the lowest round-trip fare we recorded was $890, in September. The typical fare was $980. September was the cheapest month we saw and October the dearest.
The most recent price we saw on this route was $961 on Air France, Delta, and KLM, seen Oct 15. It is an unverified observation and may have changed.
See every deal <a href="/from/porto">from Porto</a>, <a href="/to/san-diego">to San Diego</a>, or the return direction <a href="/from/san-diego/to/porto">San Diego to Porto</a>.
Latest price we saw: Porto to San Diego
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Porto (OPO) to San Diego (SAN) | $961 | 8.6¢ | Nov 19 – Nov 26 | Air France, Delta, and KLM | Oct 15 | Check price |
Price history: Porto to San Diego
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $959 | $970 | 4 |
| Sep 2026 | $890 | $1007 | 2 |
| Aug 2026 | $955 | $988 | 8 |
| Jul 2026 | $957 | $957 | 1 |
Frequently asked questions
How many flight deals from Porto to San Diego are on Sparkflights right now?
There are 0 verified deals from Porto to San Diego on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Porto to San Diego?
The lowest fare we've recorded from Porto to San Diego is $890, based on 15 price observations over 4 months.
How much does a flight from Porto to San Diego cost?
The typical round-trip fare we observed from Porto to San Diego is $980, against a recorded low of $890. These are observations, not quotes.
When is the cheapest month to fly Porto to San Diego?
September was the cheapest month we observed from Porto to San Diego and October the dearest, over 4 months of data.
What is the current price from Porto to San Diego?
The most recent fare our sweep saw from Porto to San Diego is $961, on Oct 15. It is an unverified observation rather than a verified deal, so check it before booking.