The cheapest times to fly from POS to SFO are

  • January 8th to February 4th
  • March 5th to June 10th (except the weeks of April 2nd, May 7th, and May 14th)
  • August 27th to November 11th

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 POS to SFO is early March. Prices can be as high as $1456 for Sunday flights during early to mid December, or as low as $478 for Tuesday flights around early March.


When to Fly to San Francisco

Flying from Port of Spain (POS) to San Francisco, CA (SFO) will usually cost between $488 to $895 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early March with an average ticket price of $493. Due to high demand the most expensive time to fly is early to mid December, with an average price of $984. Planning your trip to low-cost times can easily save you $491 on economy flights and even more on first-class flights. Generally, any price below $569 can be considered a good price for a round-trip POS to SFO flight.

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

POS to SFO Flight Prices

Compared to other flights, the POS to SFO flight is cheaper than the average and costs less than the average flight leaving from Port of Spain. The average price per mile (for a direct flight) is $0.08, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays 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 $91 (14%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $554. Return trip prices are from the SFO to POS 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 POS 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 8 hour 32 minutes may not be realistic.


Flight Questions Answered

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

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Aeromexico, Air Canada, Alaska, American, Avianca, Caribbean Airlines, COPA, Delta, JetBlue, United, WestJet, and potentially more during busy seasons.

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

The distance between the two airports is roughly 4194 miles or 6750 kilometers.

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

The real-world flight time for a nonstop POS to SFO flight is about 8 hour 32 minutes.

How many flights go between Port of Spain and San Francisco, CA?

It depends on the day of the week and the date, but a typical day might have around 52 available flights from POS to SFO.


Airport Location Info


Departing Airport

Origination code POS
Origination airport name Piarco Airport
City Port of Spain
Country Trinidad and Tobago
Latitude 10.6
Longitude -61.3

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.