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Cheap flights from Boston to San José from C$ 245

BOS — SJO
6 Nov — 13 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to San José

Enter your travel dates to find the best prices.

Cheapest flights from Boston to San José

Thu 29/108:47 a.m. -
1 stop26h 17m
Fri 6/115:55 p.m. -
1 stop27h 06m
Deal found 6/10C$ 554
Tue 10/112:50 p.m. -
1 stop18h 29m
Wed 18/1110:03 a.m. -
1 stop10h 58m
Deal found 7/10C$ 570
Fri 30/108:47 a.m. -
1 stop24h 17m
Sun 8/115:55 p.m. -
1 stop27h 06m
Deal found 7/10C$ 573
Mon 26/103:55 p.m. -
1 stop19h 09m
Tue 3/118:44 a.m. -
1 stop12h 17m
Deal found 7/10C$ 577
Tue 10/112:50 p.m. -
1 stop18h 29m
Mon 16/115:55 p.m. -
1 stop27h 06m
Deal found 6/10C$ 580
Sun 15/112:50 p.m. -
1 stop18h 29m
Sun 22/116:10 p.m. -
1 stop26h 51m
Deal found 7/10C$ 583
Wed 7/103:55 p.m. -
1 stop19h 09m
Wed 28/1010:03 a.m. -
1 stop10h 59m
Deal found 5/10C$ 591
Thu 26/112:50 p.m. -
1 stop18h 29m
Tue 1/125:53 p.m. -
1 stop27h 09m
Deal found 6/10C$ 598
Thu 5/112:50 p.m. -
1 stop18h 29m
Sun 31/110:01 a.m. -
1 stop10h 56m
Deal found 7/10C$ 605
Thu 26/112:50 p.m. -
1 stop18h 29m
Sat 5/126:08 p.m. -
1 stop26h 54m
Deal found 6/10C$ 608
Sun 11/103:55 p.m. -
1 stop17h 15m
Wed 4/115:55 p.m. -
1 stop27h 06m
Deal found 6/10C$ 620
Sat 14/1112:20 p.m. -
1 stop10h 55m
Fri 20/117:00 a.m. -
1 stop9h 50m
Deal found 3/10C$ 621

Find flight deals from Boston to San José

Round-trip from

C$ 551

One-way from

C$ 245

Popular in

December

Cheapest in

October

Average price

C$ 577
United Airlines
  • United Airlines
  • 20/1-27/1
  • 3 total stops
  • 21h 24m total
  • Boston to San José
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United Airlines
  • United Airlines
  • 2/2-31/12
  • 1 total stop
  • 18h 45m total
  • Boston to San José
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boston to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Sun 21/2

7:35 a.m.-6:16 p.m.

1 stop11h 41m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 255

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Mon 16/11

5:30 a.m.-1:59 p.m.

1 stop9h 29m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 303
Quickest round-trip

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Sun 31/1

5:45 a.m.-1:00 p.m.

1 stop8h 15m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 326

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Wed 28/10

3:01 p.m.-10:25 a.m.

2 stops21h 24m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 348

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Tue 23/2

3:00 p.m.-1:00 p.m.

2 stops23h 00m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 348

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Sun 15/11

6:36 p.m.-11:25 a.m.

2 stops17h 49m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 348

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Thu 4/2

7:05 a.m.-6:16 p.m.

1 stop12h 11m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 362

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Wed 3/2

9:25 a.m.-8:39 p.m.

1 stop12h 14m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 362

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Sun 17/1

3:32 p.m.-6:16 p.m.

1 stop27h 44m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 362

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Sat 6/2

7:15 p.m.-6:16 p.m.

2 stops24h 01m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 369

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Boston to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Boston with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

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

To ensure you get the cheapest price possible for a flight from Boston to San José, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to San José?

Currently, October is the cheapest month in which you can book a flight from Boston to San José (average of C$ 577). Flying from Boston to San José in December is currently the most expensive (average of C$ 957). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Boston to San José?

Airfare is typical for this route at the moment.

Boston to San José flights typically cost between C$ 518 and C$ 672 in January.
The cheapest round-trip price found within the last 5 days was C$ 551 on United Airlines (26 Jan-2 Feb).

Related info for your journey

  • How long is the flight from Boston to San José?

    United Airlines, Copa Airlines, and Delta can get you from Boston to San José in just under 9h 30m. Your travel time can differ by up to 8h 59m. There are 3819 km between Boston and San José. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Boston to San José that include hotel bookings?

    Yes. In addition to deals on Boston to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to San José?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to San José.

  • Can I find deals for business class flights from Boston to San José?

    Yes. Cheapflights offers flight deals from Boston to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to San José?

    Currently, October is the cheapest month in which you can book a flight from Boston to San José (average of C$ 577). Flying from Boston to San José in December is currently the most expensive (average of C$ 957). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Heredia
Dominical
Alajuela
Monteverde

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

San José Juan Santamaria Intl Airport car rentals
Liberia car rentals

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When you search for this flight from Boston to San José, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San José from Boston today and book when prices fit your budget.

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