BOS - SJO

Find cheap flights from Boston to San José

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San José

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San José, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San José, as well as popular online travel agencies
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Cheap Flights from Boston to San José (BOS-SJO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to San José that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to San José

Multiple Airlines Logo
BOS-SJO
6147 kmmulti-stop
Multiple Airlines Logo
SJO-BOS
6147 kmmulti-stop
Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to San José flights

Get data-powered insights and trends into flights from Boston to San José to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boston to San José?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to San José, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to San José is September, where tickets cost C$ 530 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is C$ 1,184 and C$ 835 respectively.

How far in advance should I book a flight from Boston to San José?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to San José, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to San José, you should book around 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonOctober
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (11% more expensive on average)

When to book flights from Boston to San José

Are your dates flexible? Find out the best times to travel from Boston to San José based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to San José

  • Can I find pet relief facilities at BOS?

    BOS is a pet-friendly airport offering exceptional pet relief areas for passengers traveling with their pets. You will find these pet relief areas on the "Arrivals" level curb outside each terminal. They are located post-security near Gate E7 in Terminal E, Terminal B post-security near Gate B29, and near Gate C20 past security in Terminal C. The facilities are equipped with fire hydrants and waste disposal b ags.

  • What accessibility facilities are available at San Jose Airport?

    San Jose Airport has accessible parking spaces. Passengers with an ADA placard can park in any parking lot. The airport is also equipped with wheelchair accessible restrooms and shuttles for convenient navigation throughout the airport. The wheelchairs are autonomous and are free and easy to use: the passenger selects the direction he or she wants to go on the screen, and the device will navigate to that direction independently.

  • Which family facilities are available at San Jose Airport?

    There are many family facilities that passengers traveling with the family can take advantage of in this airport. For instance, the airport features mamava pods, which offer privacy for breastfeeding mothers. They are located on the airside in both terminals.

  • Where can I sleep at San Jose Airport?

    San Jose is a relatively small airport so finding a place might be a bit of a hassle. However, you can still manage to find a place to sleep within the airport premises, you can sleep at window sills in the hallway but you need to carry an extra travel mat and a blanket. If you are landing late at SJO airport and are looking for a place to spend the night, consider making reservations at any of the multiple hotels near or within the airport.

  • Which aircraft models fly most regularly from Boston to San José?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Boston to San José?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to San José.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to San José?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to San José?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San José with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to San José?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San José from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to San José

  • Boston International Airport (BOS) is located approximately 3 miles East of downtown Boston. The airport is the major hub of Cape Air Airlines. It also serves Delta Airlines, Jetblue, American, and United Airlines. On the other hand, Juan Santamaria International Airport (SJO) is located West of San Jose 12 miles away. It is the hub of Alaska Airlines.
  • If you are traveling to San Jose and need direct flights from Boston to San Jose, you can opt for Spirit Airlines, American Airlines, or Delta Airlines. However, you can also opt for connecting flights such as Spirit Airlines with layovers at FLL.
  • While at BOS waiting to board your flight, you can take advantage of the multiple lounges within the airport. These lounges are mainly airline-operated and offer excellent amenities and services such as meals and drinks. However, these airlines have different rules and regulations so ensure that you can confirm with the airline before making any reservations.
  • Passengers who need to pick up or book car rentals at SJO will find the car rental facilities across from Terminal B of the airport. From terminal B, walk to the baggage claim area across Airport Boulevard.
  • If you are looking for particular information while at SJO, you can go to the airport information booths. They are located in each terminal near the baggage claim area.

Reviews of the top airlines flying from Boston to San José

 
See real verified KAYAK customer reviews for airlines flying from Boston to San José. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to San José? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Copa AirlinesOverall score based on 1493 reviews
7.8Boarding
7.4Comfort
8.1Crew
6.8Food
6.8Entertainment
Airline reviews

Great experience with a crew always thinking in the passenger

10.0 ExcellentJuan Carlos, Jul 2025PTY - IAD
Read more Copa Airlines reviews

Great experience with a crew always thinking in the passenger

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

Tell people to remain in their seats during the meal/beverage distribution. Enforce boarding by group numbers. No one was checking. Tell people to turn their electronics speakers off. Bigger cups for drinks.

Placed us in the last rear row of the plane so could not recline seats because of the rear wall, and also made it more of a tight space when the passenger in front reclined their seat. While understand seat assignments, every passenger should be afforded a reclining seat. The odor control scent from the restrooms was overwhelming strong. My wife and I could not deal with it, and she suffered a terrible headache as a result. I kept getting hit by the crew since I was on the ilse seat. No apologies, nothing. They made me feel like I was supposed to take the beating for a 3 hr flight.

There was no individual at the front check in when I arrived. I waited for at least 15 minutes and walked around asking security/janitors if they could help and they did not have a solution. So I had to take my checked bag through security and they threw away some of my items. I ended up making it to the gate only a few minutes before it closed due to my waiting for an agent at check in.

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

It would have been better if they don't separate families in seating. We were seated in the aile row in the middle of a family of four. It would have been better if they they seat the family of four together than separated.

The flight was 3.5 hrs delayed. I was not notified prior to arriving to the airport via spirit app. or via boarding pass that I already had loaded on my phone. The agent that i saw at the counter didn’t mention anything about the delay either. I only saw the update after logging in to my email account.

The flight and boarding process was smooth. Wifi was unavailable and I prepaid for it. Have requested a refund

Had a issue with catching flight due to airline, was unable to board flight

Spirit is a very uncomfortable travel experience. It’s cheap but you are squeezed into the seats like canned meat.

Not great. Seats uncomfortable. Crew a little rude. Amenities like wifi and drinks way too expensive.

Late departure by 1:45min. No explanation why. During boarding inconsistent policing of their baggage rules. Before takeoff and lamdimg strange obsession with window shade and armrest positions. Don't know why they care. 15 min tarmac delay on arrival, they blamed airport congestion but we were the o lh flight waiting, it was clear it was due to poor staff planning (only one ground crew to receive airplanes and multiple arrivals) Got there but was rrally lame the whole trip.

The seat belt was lengthy enough that I did not need an extender. Courteous and helpful flight attendants.

We sat on the tarmac for an hour waiting for a gate to deplane.

Friendly employees, good seat, on time, Great flight. Pilot and attendants greeted passengers as we deplaned. However, I could not ever understand what the flight attendant was saying on the mic. It was too fast, and too loud.

Everything was fine, but there was no food or entertainment, so I didn’t know how to rate that.

Everything you need to know for your flight from Boston to San José

Information on your arrival and departure airports

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