$212 Cheap avianca flights Boston (BOS) to San José (SJO)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap AVIANCA return flights from $276 from BOS to SJO. Affordable one-way options from $212 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

September is one of the most affordable months to jet off to San José with AVIANCA. You could also find excellent prices on return and one-way tickets in October.

To grab cheap flights from BOS to SJO with AVIANCA, start searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Fill in your dates, press search and check “Nonstop” on Expedia to browse any direct flights from BOS to SJO with AVIANCA or another airline.

Browse AVIANCA’s earliest flights from BOS to SJO by selecting the “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

AVIANCA flights from Logan Intl. Airport (BOS) to San José come in to land at Juan Santamaria Intl. Airport (SJO). This is the main entry point here.

For checked luggage, you can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag on board when flying standard economy from BOS to SJO with AVIANCA. This carry-on should weigh less than 22 lb and be no larger than 45 inches. Going above these restrictions can mean extra charges, so check AVIANCA’s baggage allowance rules before you begin packing.

Fly from BOS to SJO with AVIANCA and enjoy a range of perks starting with a rewarding loyalty program. When you book through Expedia as an Avianca LifeMiles and One Key™ member, you may also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee typically applies if you change or cancel your flight more than 24 hours after it’s been confirmed. To find plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter while searching for flights. For additional information on changing or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”