The cheapest times to fly from RAI to SFO are

  • January 15th to May 20th
  • October 8th to November 11th (except the week of October 29th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from RAI to SFO is late March. Prices can be as high as $6935 for Wednesday flights during early June, or as low as $1363 for Monday flights around late March.


When to Fly to San Francisco

Flying from Praia (RAI) to San Francisco, CA (SFO) will usually cost between $1369 to $2833 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late March with an average ticket price of $1488. Due to high demand the most expensive time to fly is early June, with an average price of $2794. Planning your trip to low-cost times can easily save you $1306 on economy flights and even more on first-class flights. Generally, any price below $1766 can be considered a good price for a round-trip RAI to SFO flight.

See below for a graph of average weekly prices for the RAI to SFO route. All prices are for round-trip tickets in USD.

RAI to SFO Flight Prices

Compared to other flights, the RAI to SFO flight is more expensive than the average and costs slightly more than the average flight leaving from Praia. The average price per mile (for a direct flight) is $0.18, which is below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to depart and return on this flight. Wednesdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $1095 (42%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $1647. Return trip prices are from the SFO to RAI flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from RAI to SFO can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 54 minutes may not be realistic.


Flight Hacking RAI to SFO

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from RAI to SFO — but Champion Traveler does!

Hack #1: Amsterdam (RAI > AMS > SFO)

  • Price for both tickets: $1116
  • Average savings: $650 (36.81%)

See RAI to LIS flights

Hack #2: Lisbon (RAI > LIS > SFO)

  • Price for both tickets: $1134
  • Average savings: $633 (35.82%)

See RAI to AMS flights

Hack #3: Boston, MA (RAI > BOS > SFO)

  • Price for both tickets: $1154
  • Average savings: $612 (34.65%)

See RAI to BOS flights


Flight Questions Answered

Still have questions about flying from RAI to SFO? We’ve got answers.

Which airlines fly this route?

You can find 17 major airlines flying this route most often: Air France, Air New Zealand, American, Austrian, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Royal Air Maroc, SAS, SWISS, Tap Air Portugal, United, Virgin Atlantic, and potentially more during busy seasons.

How far away is it from San Francisco International Airport to Praia International Airport?

The distance between the two airports is roughly 6062 miles or 9756 kilometers.

How long does it take to fly from RAI to SFO?

The real-world flight time for a nonstop RAI to SFO flight is about 11 hour 54 minutes.

How many flights go between Praia and San Francisco, CA?

It depends on the day of the week and the date, but a typical day might have around 8 available flights from RAI to SFO.


Airport Location Info


Departing Airport

Origination code RAI
Origination airport name Praia International Airport
City Praia
Country Cape Verde
Latitude 14.9
Longitude -23.5

Return Airport

Destination code SFO
Destination airport name San Francisco International Airport
City San Francisco, CA
Country the United States
Latitude 37.6
Longitude -122.4


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.