How much is the train ticket from Boston to San Diego?

The cheapest train tickets from Boston to San Diego start at $385. The average price for this train route is around $926. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.

How long is the train ride from Boston to San Diego?

The average train trip from Boston to San Diego takes 3d 3h and covers 4152 km. The quickest train gets you there in 3d 2h and is operated by Amtrak .

Which train operators serve the Boston to San Diego route?

Several major train operators serve this route, with 6 trains available per day.

What are the earliest and latest departure times for the train from Boston to San Diego?

The earliest train from Boston to San Diego departs at 6:10am. The latest train departs at 12:57pm.

Train Boston to San Diego from $580 | Refundable Tickets

Next train departures

Next departures for Boston to San Diego on December 14
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	12:57pm	Back Bay Station	3d 2h	12:53pm	Old Town San Diego	CheapestFastest
Train	12:57pm	Back Bay Station	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	12:50pm	South Station (Train Terminal)	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	12:50pm	South Station (Train Terminal)	3d 3h	12:53pm	Old Town San Diego	No tags

Next departures for Boston to San Diego on December 15
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	12:57pm	Back Bay Station	3d 2h	12:53pm	Old Town San Diego	CheapestFastest
Train	12:57pm	Back Bay Station	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	12:57pm	Back Bay Station	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	12:57pm	Back Bay Station	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	6:15am	Back Bay Station	3d 7h	11:07am	Santa Fe Depot	No tags

Next departures for Boston to San Diego on December 16
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:15am	Back Bay Station	3d 7h	11:07am	Santa Fe Depot	Cheapest
Train	12:57pm	Back Bay Station	3d 2h	12:53pm	Old Town San Diego	Fastest
Train	12:57pm	Back Bay Station	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	6:15am	Back Bay Station	3d 7h	10:53am	Old Town San Diego	No tags
Train	12:50pm	South Station (Train Terminal)	3d 3h	1:07pm	Santa Fe Depot	No tags

Next departures for Boston to San Diego on December 17
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:15am	Back Bay Station	3d 7h	11:07am	Santa Fe Depot	Cheapest
Train	12:57pm	Back Bay Station	3d 2h	12:53pm	Old Town San Diego	Fastest
Train	12:57pm	Back Bay Station	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	6:15am	Back Bay Station	3d 7h	10:53am	Old Town San Diego	No tags
Train	12:50pm	South Station (Train Terminal)	3d 3h	1:07pm	Santa Fe Depot	No tags

Next departures for Boston to San Diego on December 18
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	6:15am	Back Bay Station	3d 7h	11:07am	Santa Fe Depot	Cheapest
Train	6:15am	Back Bay Station	3d 7h	10:53am	Old Town San Diego	Fastest
Train	6:10am	South Station (Train Terminal)	3d 7h	11:07am	Santa Fe Depot	No tags
Train	6:10am	South Station (Train Terminal)	3d 7h	10:53am	Old Town San Diego	No tags

Next departures for Boston to San Diego on December 19
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	12:57pm	Back Bay Station	3d 2h	12:53pm	Old Town San Diego	CheapestFastest
Train	12:57pm	Back Bay Station	3d 3h	1:07pm	Santa Fe Depot	No tags
Train	6:15am	Back Bay Station	3d 7h	11:07am	Santa Fe Depot	No tags
Train	6:15am	Back Bay Station	3d 7h	10:53am	Old Town San Diego	No tags
Train	12:50pm	South Station (Train Terminal)	3d 3h	1:07pm	Santa Fe Depot	No tags

Last refresh of the prices: Last Monday at 10:35 PM EST.

Compare 2 ways to go from Boston to San Diego

We recommend taking the bus

Among the sustainable travel choices, the bus stands out as a good way to reach San Diego. The journey takes about 3 days, 11 hours 10 minutes, and with fares starting at just $201, it presents an excellent value for a comfortable ride.

16bus per day

3d 11hAverage Duration

4152 kmDistance

104kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions	Actions
Bus	Average Price$201 - $1,119	Average Duration3d 11h	CO₂ emissions 104kg CO₂e
Train	Average Price$385 - $4,141	Average Duration3d 3h	CO₂ emissions 378kg CO₂e

Train companies

Amtrak

4/55,644 reviews

Staff4.7

Timeliness3.8

Cleanliness4.6

Wifi3.6

Based on 5644 reviews, the company was rated 4.1 stars on Busbud. Travellers were especially satisfied with the seats and the ticket access but often complained with the WiFi. Amtrak ticket prices on this trip start at $385

US train and bus companies:Amtrak, Trenitalia, Renfe, VIA Rail Canada, Amtrak Acela, NS Nederlandse Spoorwegen, Iryo

Frequently asked questions about travelling from Boston, MA, US to San Diego, CA, US by train

Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.

How much is the train ticket from Boston to San Diego?
The cheapest train tickets from Boston to San Diego start at $385. The average price for this train route is around $926. Busbud recommends booking your tickets in advance to increase your chances of getting the lowest possible price.
How long is the train ride from Boston to San Diego?
The average train trip from Boston to San Diego takes 3d 3h and covers 4152 km. The quickest train gets you there in 3d 2h and is operated by Amtrak.
Which train operators serve the Boston to San Diego route?
Several major train operators serve this route, with 6 trains available per day.
What are the earliest and latest departure times for the train from Boston to San Diego?
The earliest train from Boston to San Diego departs at 6:10am. The latest train departs at 12:57pm.

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

12-12

$823

12-13

No data

Today

$2,129

12-15

$645

12-16

$2,645

12-17

$3,269

12-18

$3,520

12-19

$2,803

The cheapest trip from Boston, MA, US to San Diego, CA, US was searched and found on Dec 15, 2025 with a price of $645

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Boston, MA, US to San Diego, CA, US, as early as possible.

You can expect to pay from $645 to $4,890 for a train ticket from Boston, MA, US to San Diego, CA, US based on the last 2 days. You can expect to find the cheapest price for the trip at $645 which is on 2025-12-15.