What is the cheapest airline to fly from San Francisco to Trenton, New Jersey round-trip?

Flying on Frontier is currently your cheapest option to Trenton, New Jersey, with prices starting at $241.

In terms of precipitation, rainfall in Trenton, New Jersey ranges from 2.9 - 4.8 inches per month. July is typically the wettest month, when rainfall can reach 4.8 in. February is typically the driest time to visit Trenton, New Jersey when rainfall is around 2.9 in.

If weather is an important factor for your trip to Trenton, New Jersey, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

How far in advance should I book a flight from San Francisco to Trenton, New Jersey?

Users have found that booking a flight from San Francisco to Trenton, New Jersey at least 59 days early can save you up to 83% on average compared to booking a flight this week. If booking 59 days before your flight isn’t an option for you, users have found flights from San Francisco to Trenton, New Jersey for as little as $462 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $682 for flights departing within the next 3 days.

What is the cheapest month to fly from San Francisco to Trenton, New Jersey?

The best pricing can be found in the month of February. Prices to Trenton, New Jersey from San Francisco average $407. You can even find prices in February for less than $407, as users have found deals to Trenton, New Jersey from as low as $165. The month of December appears to be one of the more expensive times to travel to Trenton, New Jersey from San Francisco. Flying in the targeted month can save you up to 24%.

What is the cheapest time of day to fly from SFO to TTN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Trenton, New Jersey as you normally would.

Can I find deals for flights from San Francisco to Trenton that include hotel bookings?

Yes. In addition to deals on San Francisco to Trenton flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Francisco to Trenton?

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

Can I find deals for business class flights from San Francisco to Trenton?

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

$131+ Flights from San Francisco to Trenton, NJ

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Cheap flight deals from San Francisco to Trenton

Round-trip from	$241 (CheapOair)
One-way from	$131 (CheapOair)
Popular in	December
Cheapest in	February
Average price	$475

From San Francisco to Trenton-Mercer

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One-way flight from San Francisco to Trenton-Mercer

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Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from San Francisco to Trenton

Cheapest flights from San Francisco to Trenton
Explore the most affordable flight options available from San Francisco to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Sat 7/198:53 pmSFO - TTN

1 stop11h 13mFrontier

Wed 7/308:30 amTTN - SFO

1 stop28h 55mFrontier

Deal found 6/29

$241

Best flights from San Francisco to Trenton
Discover carefully curated flight deals from San Francisco to Trenton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2025.

Sat 7/198:53 pmSFO - TTN

1 stop11h 13mFrontier

Wed 7/308:30 amTTN - SFO

1 stop28h 55mFrontier

Deal found 6/29

$241

Last-minute flights from San Francisco to Trenton
Discover last-minute flight deals from San Francisco to Trenton. Data last updated July 2, 2025 and is based on user searches.

Mon 7/78:53 pmSFO - TTN

1 stop16h 30mFrontier

Wed 7/98:30 amTTN - SFO

1 stop28h 55mFrontier

Deal found 6/30

$305

Sat 7/198:53 pmSFO - TTN

1 stop11h 13mFrontier

Wed 7/308:30 amTTN - SFO

1 stop28h 55mFrontier

Deal found 6/29

$241

One-way flights from San Francisco to Trenton
Search for one-way flight options from San Francisco to Trenton. Find affordable one-way fares based on user searches. Data last updated July 2, 2025.

Fri 8/88:53 pmSFO - TTN

1 stop16h 55mFrontier

Deal found 6/30

$131

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Trenton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoTrenton

SFO - TTN

SFOTTN

San Francisco

Sat 7/19

8:53 pm-11:06 am

1 stop11h 13m

Trenton-Mercer

Wed 7/30

8:30 am-10:25 am

1 stop28h 55m

$241

San FranciscoTrenton

SFO - TTN

SFOTTN

San Francisco

Fri 8/8

8:53 pm-4:48 pm

1 stop16h 55m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from San Francisco to Trenton

Have a flexible travel schedule? Discover the best time to fly to Trenton from San Francisco 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Trenton

What is the cheapest month to book a flight from San Francisco to Trenton, New Jersey?

Currently, January is the cheapest month in which you can book a flight from San Francisco to Trenton, New Jersey (average of $73). Flying from San Francisco to Trenton, New Jersey in June is currently the most expensive (average of $153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Trenton

Peruse reviews from past customers who have flown with Frontier from San Francisco to Trenton 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.

Frontier

5.9

Fair

3,290 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Frontier

5.9

Fair

3,290 reviews

Frontier

5.9

Fair

3,290 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

Related info for your journey

What is the cheapest airline to fly from San Francisco to Trenton, New Jersey round-trip?
Flying on Frontier is currently your cheapest option to Trenton, New Jersey, with prices starting at $241.
Can I find deals for flights from San Francisco to Trenton that include hotel bookings?
Yes. In addition to deals on San Francisco to Trenton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Trenton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Trenton.
Can I find deals for business class flights from San Francisco to Trenton?
Yes. Cheapflights offers flight deals from San Francisco to Trenton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Francisco to Trenton, New Jersey?
Currently, January is the cheapest month in which you can book a flight from San Francisco to Trenton, New Jersey (average of $73). Flying from San Francisco to Trenton, New Jersey in June is currently the most expensive (average of $153). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$131+ Cheap flights from San Francisco to Trenton, NJ (SFO - TTN)

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco to Trenton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Francisco to Trenton

Round-trip from

One-way from

Popular in

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Find flight deals from San Francisco to Trenton

Cheapest flights from San Francisco to TrentonExplore the most affordable flight options available from San Francisco to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Explore the most affordable flight options available from San Francisco to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Trenton that are best for you.

Best time to book a flight from San Francisco to Trenton

Have a flexible travel schedule? Discover the best time to fly to Trenton from San Francisco with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Trenton

What is the cheapest month to book a flight from San Francisco to Trenton, New Jersey?

Reviews of airlines servicing Trenton

Peruse reviews from past customers who have flown with Frontier from San Francisco to Trenton 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 San Francisco to Trenton. 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 San Francisco to Trenton, New Jersey round-trip?

Can I find deals for flights from San Francisco to Trenton that include hotel bookings?

How can I find direct flights from San Francisco to Trenton?

Can I find deals for business class flights from San Francisco to Trenton?

What is the cheapest month to book a flight from San Francisco to Trenton, New Jersey?

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Cheapest flights from San Francisco to Trenton
Explore the most affordable flight options available from San Francisco to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.