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

The cheapest train tickets from Boston to San Diego start from $273. The average price for this train route is around $656. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.

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

The average train ride duration from Boston to San Diego is 3d 3h, covering a distance of 2574 miles (4152 km). The quickest train can get you there in 3d 2h and is operated by Amtrak .

Which train operators service the Boston to San Diego route?

Several major train operators operate on this route with 6 trains available per day.

What is the earliest and latest departure time for the train from Boston to San Diego?

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

Train Boston to San Diego from $410 | 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 the good way to reach San Diego. The journey takes about 3 days, 11 hours 10 minutes and with fares starting at just $142, it presents an excellent value for a comfortable ride.

16bus per day

3d 11hAverage Duration

2574 milesDistance

104kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions	Actions
Bus	Average Price$142 - $792	Average Duration3d 11h	CO₂ emissions 104kg CO₂e
Train	Average Price$273 - $2,932	Average Duration3d 3h	CO₂ emissions 378kg CO₂e

Train Companies

Amtrak

4/55,641 reviews

Staff4.7

Timeliness3.8

Cleanliness4.6

Wifi3.6

Based on 5641 reviews, the company was rated 4.1 stars on Busbud. Travelers were especially satisfied with the seats and the ticket access but often complained with the wifi. Amtrak ticket prices on this trip start at $273

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

Frequently asked questions about traveling 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 from $273. The average price for this train route is around $656. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the train journey from Boston to San Diego?
The average train ride duration from Boston to San Diego is 3d 3h, covering a distance of 2574 miles (4152 km). The quickest train can get you there in 3d 2h and is operated by Amtrak.
Which train operators service the Boston to San Diego route?
Several major train operators operate on this route with 6 trains available per day.
What is the earliest and latest departure time for the train from Boston to San Diego?
The earliest train departs from Boston to San Diego at 6:10am. And 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

12/11

$532

12/12

$582

Today

No data

12/14

$1,507

12/15

$456

12/16

$1,872

12/17

$2,314

12/18

$2,492

The cheapest trip from Boston, MA, US to San Diego, CA, US was searched and found on Dec 15, 2025 with a price of $456

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 $456 to $3,462 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 $456 which is on 2025-12-15.