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$145+ Cheap flights from Trenton, NJ to San Francisco (TTN - SFO)

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SFO
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
1 adult, Economy
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Cheap flight deals from Trenton to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

December

Cheapest in

February

Average price

$422
Provider with most accurate pricing for Trenton-Mercer-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trenton-Mercer-San Francisco flights.
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Trenton to San Francisco

One-way flights from Trenton to San Francisco
Search for one-way flight options from Trenton to San Francisco. Find affordable one-way fares based on user searches. Data last updated November 5, 2025.

This Trip.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/77:30 amTTN - SFO
2 stops32h 48mFrontier
Deal found 11/4$145
This Trip.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/107:30 amTTN - SFO
2 stops51h 43mFrontier
Deal found 11/4$159
This Trip.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/67:30 amTTN - SFO
2 stops31h 54mFrontier
Deal found 11/4$221
This Trip.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:52 amTTN - SFO
1 stop12h 31mFrontier
Deal found 11/5$226
This Trip.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/239:52 amTTN - SFO
1 stop12h 31mFrontier
Deal found 11/4$240
This Trip.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/164:27 pmTTN - SFO
2 stops22h 48mFrontier
Deal found 11/4$285
This Vliegwinkel deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:36 pmTTN - SFO
2 stops29h 23mMultiple Airlines
Deal found 11/4$423
This Kissandfly.com deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:36 pmTTN - SFO
2 stops19h 25mFrontier
Deal found 11/4$501

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 5, 2025.
Use the filters below to find and compare flights from Trenton to San Francisco that are best for you.

Fly from

Trenton

Fly to

San Francisco

Route

Depart

Return

Price

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Wed 1/7

7:30 am-1:18 pm

2 stops32h 48m

$145

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sat 1/10

7:30 am-8:13 am

2 stops51h 43m

$159

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Tue 1/6

7:30 am-12:24 pm

2 stops31h 54m

$221

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Tue 11/25

9:52 am-7:23 pm

1 stop12h 31m

$226

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sun 11/23

9:52 am-7:23 pm

1 stop12h 31m

$240

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sun 11/16

4:27 pm-12:15 pm

2 stops22h 48m

$285

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sun 11/30

9:36 pm-11:59 pm

2 stops29h 23m

$423

TrentonSan Francisco

TTN - SFO

TTNSFO

Trenton-Mercer

Sun 11/30

9:36 pm-2:01 pm

2 stops19h 25m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Compare providers for flights from Trenton to San Francisco

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 Trenton to San Francisco in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

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

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

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

Currently, February is the cheapest month in which you can book a flight from Trenton, New Jersey to San Francisco (average of $71). Flying from Trenton, New Jersey to San Francisco in May is currently the most expensive (average of $187). 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.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trenton to San Francisco 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 Trenton, New Jersey to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Trenton, New Jersey to San Francisco (average of $71). Flying from Trenton, New Jersey to San Francisco in May is currently the most expensive (average of $187). 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.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
Vallejo
Hollister
San Bruno
Foster City
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Union City
Burlingame
Lodi
San Mateo
Vacaville
Lathrop

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