Cheap Flights from Boston to San Jose from $133

Frequently Asked Questions

• What are the cheapest flights from Boston to San Jose (BOS-SJO)?

  Based on Trip.com data, American Airlines offers one-way fares as low as $133 on Cheapest nonstop routes (e.g. BOS to SJO on Fri, May 29), while Copa Airlines offers Cheapest nonstop round-trips from $339 departing on Tue, Jun 16 and returning on Fri, Jun 19.

• Which airlines offer direct flights from Boston to San Jose?

  At the moment, you can catch a nonstop flight from Boston to San Jose with the following airlines, including: Spirit Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Boston to San Jose?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to San Jose is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Boston to San Jose?

  To find best deals on flights from Boston to San Jose, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, May 29, with one-way flights priced at just $133.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for San Jose travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Boston (BOS) to San Jose (SJO) the cheapest?

  The cheapest months to fly from Boston to San Jose is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Boston to San Jose on?

  After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Boston to San Jose on May 25, 2026 with Spirit Airlines, with prices starting at $310.

• Which airports can I fly to for San Jose from Boston?

  You can land at any one of the following hubs in San Jose, with Boston Logan International Airport to Juan Santamaría International Airport (BOS-SJO) is by far the most common option on this route: Juan Santamaría International Airport (SJO) Tobias Bolaños International Airport (SYQ).

• Is there any time difference between Boston and San Jose?

  The time difference between San Jose and Boston is 1h.

• How do I change or cancel my ticket from Boston to San Jose?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.