What is the cheapest airline to fly from Port of Spain to San Diego round-trip?

Our cheapest airline available from Port of Spain to San Diego is United Airlines. Our recent data shows that you can find tickets from as low as $403 on this airline. United Airlines is currently priced 52% below the average price you’ll pay for this route.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

What is the cheapest time of day to fly from POS to SAN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Port of Spain to San Diego as you normally would.

Most accurate provider : When it comes to deals on Port of Spain-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Port of Spain-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Port of Spain-San Diego flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Port of Spain-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Port of Spain-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Port of Spain to San Diego that include hotel bookings?

Yes. In addition to deals on Port of Spain to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Port of Spain to San Diego?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Port of Spain to San Diego.

Can I find deals for business class flights from Port of Spain to San Diego?

Yes. Cheapflights offers flight deals from Port of Spain to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$245+ Flights from Port of Spain to San Diego

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1. Tell us where you want to go

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2. Select your favorite providers

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3. Compare prices and book

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Cheap flight deals from Port of Spain to San Diego

One-way flights from Port of Spain to San Diego
Search for one-way flight options from Port of Spain to San Diego. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Sat 1/178:45 amPOS - SAN

1 stop14h 30mJetBlue

Deal found 12/16

$245

Sat 1/179:10 amPOS - SAN

2 stops43h 14mMultiple Airlines

Deal found 12/16

$277

Tue 1/61:30 amPOS - SAN

2 stops17h 34mUnited Airlines

Deal found 12/17

$381

Wed 1/76:30 amPOS - SAN

1 stop20h 39mAmerican Airlines

Deal found 12/17

$438

Wed 1/79:10 amPOS - SAN

3 stops52h 47mMultiple Airlines

Deal found 12/17

$450

Find flight deals from Port of Spain to San Diego

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Popular in	November
Cheapest in	July
Average price	$677

Provider with most accurate pricing for Port of Spain Piarco Intl-San Diego flight deals.

Search Deals

Provider most trusted by Cheapflights users for Port of Spain Piarco Intl-San Diego flights.

Search Deals

Highest demand for flights based on searches. 49% potential increase in price ($817 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 31% potential price decrease ($201 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Port of Spain to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Port of SpainSan Diego

POS - SAN

POSSAN

Port of Spain Piarco Intl

Sat 1/17

8:45 am-7:15 pm

1 stop14h 30m

$245

Port of SpainSan Diego

POS - SAN

POSSAN

Port of Spain Piarco Intl

Sat 1/17

9:10 am-12:24 am

2 stops43h 14m

$277

Port of SpainSan Diego

POS - SAN

POSSAN

Port of Spain Piarco Intl

Tue 1/6

1:30 am-3:04 pm

2 stops17h 34m

$381

Port of SpainSan Diego

POS - SAN

POSSAN

Port of Spain Piarco Intl

Wed 1/7

6:30 am-11:09 pm

1 stop20h 39m

$438

Port of SpainSan Diego

POS - SAN

POSSAN

Port of Spain Piarco Intl

Wed 1/7

9:10 am-9:57 am

3 stops52h 47m

$450

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Compare providers for flights from Port of Spain to San Diego

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Port of Spain to San Diego in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Port of Spain-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Port of Spain-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Port of Spain-San Diego flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Port of Spain-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Port of Spain-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Port of Spain to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Port of Spain with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing San Diego

Peruse reviews from past customers who have flown with United Airlines from Port of Spain to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,091 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

9,091 reviews

United Airlines

7.4

Good

9,091 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

What is the cheapest airline to fly from Port of Spain to San Diego round-trip?
Our cheapest airline available from Port of Spain to San Diego is United Airlines. Our recent data shows that you can find tickets from as low as $403 on this airline. United Airlines is currently priced 52% below the average price you’ll pay for this route.
Can I find deals for flights from Port of Spain to San Diego that include hotel bookings?
Yes. In addition to deals on Port of Spain to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Port of Spain to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Port of Spain to San Diego.
Can I find deals for business class flights from Port of Spain to San Diego?
Yes. Cheapflights offers flight deals from Port of Spain to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Other flights to San Diego

Top airline flying from Port of Spain to San Diego

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$508	Average$596	FlexibilityNo cancel fee	On-time69%

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$245+ Cheap flights from Port of Spain (POS) to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Port of Spain to San Diego with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Port of Spain to San Diego

One-way flights from Port of Spain to San DiegoSearch for one-way flight options from Port of Spain to San Diego. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Search for one-way flight options from Port of Spain to San Diego. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Find flight deals from Port of Spain to San Diego

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Port of Spain to San Diego that are best for you.

Compare providers for flights from Port of Spain to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Port of Spain to San Diego in December.

Best time to book a flight from Port of Spain to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Port of Spain with our price prediction graph.

Reviews of airlines servicing San Diego

Peruse reviews from past customers who have flown with United Airlines from Port of Spain to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Port of Spain to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Port of Spain to San Diego round-trip?

Can I find deals for flights from Port of Spain to San Diego that include hotel bookings?

How can I find direct flights from Port of Spain to San Diego?

Can I find deals for business class flights from Port of Spain to San Diego?

Traveling to a place near San Diego?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Port of Spain to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Port of Spain to San Diego

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Book with Flexibility

Travel Smart

One-way flights from Port of Spain to San Diego
Search for one-way flight options from Port of Spain to San Diego. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.