$113 Cheap Flights from Boston (BOS) to San José (SJO)

View $113 flight on Mon, Jul 28, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Juan Santamaria Intl. Airport (SJO)

Cheap Flights from Boston to San José (BOS-SJO)

Prices were available within the past 7 days and start at $113 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Jul 28 - Wed, Jul 30
BOS
Boston
SJO
San José
$258 Roundtrip, just found
$258
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Jul 28 from Boston to San José, returning Wed, Jul 30, priced at $258 just found
Spirit Airlines
Wed, Jul 30 - Tue, Aug 5
BOS
Boston
SJO
San José
$258 Roundtrip, found 7 hours ago
$258
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Wed, Jul 30 from Boston to San José, returning Tue, Aug 5, priced at $258 found 7 hours ago
Spirit Airlines
Sun, Aug 3 - Wed, Aug 6
BOS
Boston
SJO
San José
$259 Roundtrip, found 22 hours ago
$259
Roundtrip
found 22 hours ago
Select Spirit Airlines flight, departing Sun, Aug 3 from Boston to San José, returning Wed, Aug 6, priced at $259 found 22 hours ago
Spirit Airlines
Mon, Aug 4 - Wed, Aug 6
BOS
Boston
SJO
San José
$261 Roundtrip, just found
$261
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Aug 4 from Boston to San José, returning Wed, Aug 6, priced at $261 just found
Spirit Airlines
Tue, Jul 29 - Tue, Aug 5
BOS
Boston
SJO
San José
$266 Roundtrip, found 8 hours ago
$266
Roundtrip
found 8 hours ago
Select Spirit Airlines flight, departing Tue, Jul 29 from Boston to San José, returning Tue, Aug 5, priced at $266 found 8 hours ago
Spirit Airlines
Sat, Aug 2 - Mon, Aug 4
BOS
Boston
SJO
San José
$268 Roundtrip, just found
$268
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Aug 2 from Boston to San José, returning Mon, Aug 4, priced at $268 just found
JetBlue Airways
Tue, Sep 16 - Sat, Sep 20
BOS
Boston
SJO
San José
$339 Roundtrip, found 2 hours ago
$339
Roundtrip
found 2 hours ago
Select JetBlue Airways flight, departing Tue, Sep 16 from Boston to San José, returning Sat, Sep 20, priced at $339 found 2 hours ago
Copa
Tue, Sep 23 - Thu, Sep 25
BOS
Boston
SJO
San José
$342 Roundtrip, just found
$342
Roundtrip
just found
Select Copa flight, departing Tue, Sep 23 from Boston to San José, returning Thu, Sep 25, priced at $342 just found
Southwest Airlines
Sat, Aug 23 - Mon, Aug 25
BOS
Boston
SJO
San José
$359 Roundtrip, just found
$359
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Aug 23 from Boston to San José, returning Mon, Aug 25, priced at $359 just found
Delta
Thu, Oct 2 - Sat, Oct 4
BOS
Boston
SJO
San José
$364 Roundtrip, just found
$364
Roundtrip
just found
Select Delta flight, departing Thu, Oct 2 from Boston to San José, returning Sat, Oct 4, priced at $364 just found

Find the cheapest month to fly from Boston (BOS) to San José (SJO)

February is typically the cheapest month to fly

From $236 - $541 per traveler.

Graph displaying average flight prices per month

Flights from Boston (BOS) to San José (SJO)
Origin airport
Logan Intl.
Destination airport
Juan Santamaría Intl.
Airlines serving
Air Canada, American Airlines, Copa, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United, avianca
Roundtrip price
$257
Distance
2374 mi

Boston to San José Flights

The cheapest times to fly from Boston to San José

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to San José are during the month of July. You can find some of the cheapest flights from Boston to San José with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to San José

Sunday is one of the best days to book for cheap flights from Boston to San José: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to San José

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to San José in 2025. You can also book with separate airlines for your outbound and return journeys, from $113 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to San José flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to San José airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Juan Santamaria Intl. Airport (SJO) cost?
Discover the latest flight deals from BOS to SJO by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BOS to SJO?
The cheapest flights from BOS to SJO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BOS to SJO?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BOS to SJO. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Logan Intl. Airport (BOS) to Juan Santamaria Intl. Airport (SJO)?
You'll need to book a flight with a layover when traveling from Logan Intl. Airport (BOS) to Juan Santamaria Intl. Airport (SJO). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from BOS to SJO?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Juan Santamaria Intl. Airport (SJO)?
To reach Juan Santamaria Intl. Airport (SJO) on time, choose a flight that leaves Logan Intl. Airport (BOS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Juan Santamaria Intl. Airport (SJO) last-minute?
Holding off until right before your break to book your flight from BOS to SJO often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a BOS to SJO flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOS to SJO flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the hassle out of planning your trip. Simply secure your flights and select from our wide range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Juan Santamaria Intl. Airport (SJO)?
Usually, it's possible to reschedule or cancel your BOS to SJO flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.