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Cheap flights from Boston to San José from $166

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San José departing on 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Boston to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
8:47 am - 8:19 am
BOS
-
SJO
25h 32m
1 stop
Copa Airlines Logo
5:55 pm - 11:02 pm
SJO
-
BOS
27h 07m
1 stop
$344Copa Airlines
Thu, Sep 24 - Sun, Sep 27
Avianca Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Avianca Logo
7:45 pm - 2:50 pm
SJO
-
BOS
17h 05m
1 stop
$353Avianca
Fri, Aug 28 - Fri, Sep 4
Delta Logo
5:30 am - 11:54 am
BOS
-
SJO
8h 24m
1 stop
Delta Logo
1:23 pm - 12:58 am
SJO
-
BOS
9h 35m
1 stop
$356Delta
Tue, Sep 29 - Sat, Oct 10
Copa Airlines Logo
8:47 am - 7:10 am
BOS
-
SJO
24h 23m
1 stop
Copa Airlines Logo
5:55 pm - 11:02 pm
SJO
-
BOS
27h 07m
1 stop
$359Copa Airlines
Fri, Oct 9 - Tue, Oct 13
American Airlines Logo
7:19 pm - 11:05 am
BOS
-
SJO
17h 46m
2 stops
American Airlines Logo
2:45 pm - 12:34 am
SJO
-
BOS
7h 49m
1 stop
$361American Airlines
Wed, Oct 14 - Wed, Oct 21
American Airlines Logo
6:19 pm - 12:22 pm
BOS
-
SJO
19h 03m
1 stop
American Airlines Logo
7:00 am - 12:46 am
SJO
-
BOS
16h 46m
1 stop
$364American Airlines
Sat, Nov 14 - Sat, Nov 21
Avianca Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Avianca Logo
7:45 pm - 2:50 pm
SJO
-
BOS
17h 05m
1 stop
$365Avianca
Wed, Sep 2 - Tue, Sep 8
Copa Airlines Logo
8:47 am - 8:19 am
BOS
-
SJO
25h 32m
1 stop
Copa Airlines Logo
5:55 pm - 11:02 pm
SJO
-
BOS
27h 07m
1 stop
$373Copa Airlines
Tue, Sep 22 - Sat, Oct 3
Copa Airlines Logo
8:47 am - 9:04 am
BOS
-
SJO
26h 17m
1 stop
Copa Airlines Logo
10:03 am - 2:39 pm
SJO
-
BOS
26h 36m
1 stop
$374Copa Airlines
Fri, Oct 9 - Sat, Oct 17
Avianca Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Avianca Logo
7:45 pm - 2:50 pm
SJO
-
BOS
17h 05m
1 stop
$375Avianca
Mon, Aug 24 - Sun, Sep 6

Avianca flights from Boston to San José

Our best Avianca deals on Boston to San José flight tickets
Avianca
Aug 28
BOS4:50 pmBoston Logan Intl
8h 50m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl
Sep 4
SJO7:45 pmSan José Juan Santamaria Intl
17h 05m
1 stop
BOS2:50 pmBoston Logan Intl
$353
Avianca
Sep 2
BOS4:50 pmBoston Logan Intl
8h 50m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl
Sep 8
SJO7:45 pmSan José Juan Santamaria Intl
17h 05m
1 stop
BOS2:50 pmBoston Logan Intl
$365
Avianca
Aug 24
BOS4:50 pmBoston Logan Intl
8h 50m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl
Aug 31
SJO7:45 pmSan José Juan Santamaria Intl
17h 05m
1 stop
BOS2:50 pmBoston Logan Intl
$375

United Airlines flights from Boston to San José

Our best United Airlines deals on Boston to San José flight tickets
United Airlines
Jun 5
BOS3:54 pmBoston Logan Intl
8h 45m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Jun 12
SJO7:55 amSan José Juan Santamaria Intl
13h 24m
1 stop
BOS11:19 pmBoston Logan Intl
$376
United Airlines
Jun 6
BOS1:37 pmBoston Logan Intl
11h 02m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Jun 8
SJO7:55 amSan José Juan Santamaria Intl
11h 49m
1 stop
BOS9:44 pmBoston Logan Intl
$379
United Airlines
Jun 9
BOS3:54 pmBoston Logan Intl
8h 45m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Jun 15
SJO12:30 amSan José Juan Santamaria Intl
15h 04m
1 stop
BOS5:34 pmBoston Logan Intl
$397

momondo Fare Finder

 
Customize your flight search to find flights from Boston to San José that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 4, 2026.
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 - SJO

BOSSJO

Boston Logan Intl

Thu 9/24

8:47 am-8:19 am

1 stop25h 32m

San José Juan Santamaria Intl

Sun 9/27

5:55 pm-11:02 pm

1 stop27h 07m

$344

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 8/28

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Fri 9/4

7:45 pm-2:50 pm

1 stop17h 05m

$353
Quickest round-trip

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 9/29

5:30 am-11:54 am

1 stop8h 24m

San José Juan Santamaria Intl

Sat 10/10

1:23 pm-12:58 am

1 stop9h 35m

$356

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 10/9

8:47 am-7:10 am

1 stop24h 23m

San José Juan Santamaria Intl

Tue 10/13

5:55 pm-11:02 pm

1 stop27h 07m

$359

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 10/14

7:19 pm-11:05 am

2 stops17h 46m

San José Juan Santamaria Intl

Wed 10/21

2:45 pm-12:34 am

1 stop7h 49m

$361

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sat 11/14

6:19 pm-12:22 pm

1 stop19h 03m

San José Juan Santamaria Intl

Sat 11/21

7:00 am-12:46 am

1 stop16h 46m

$364

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 9/2

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Tue 9/8

7:45 pm-2:50 pm

1 stop17h 05m

$365

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 9/22

8:47 am-8:19 am

1 stop25h 32m

San José Juan Santamaria Intl

Sat 10/3

5:55 pm-11:02 pm

1 stop27h 07m

$373

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 10/9

8:47 am-9:04 am

1 stop26h 17m

San José Juan Santamaria Intl

Sat 10/17

10:03 am-2:39 pm

1 stop26h 36m

$374

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 8/24

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Sun 9/6

7:45 pm-2:50 pm

1 stop17h 05m

$375

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San José from

How to get the cheapest flight ticket from Boston to San José

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and San José?

What is the cheapest month to fly to San José?

In general, October is the cheapest month to fly from Boston to San José. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $340. If you don’t want to visit San José in October, then you should wait until September to fly from Boston, when ticket prices are also cheap, with an average price of $373.

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

You are more likely to see cheaper flights to San José from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San José for around $461 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José from Boston for as low as $389 on momondo.

Can stopping save me money on Boston to San José flights?

You could potentially save up to 2% on your flight if you consider stops on a Boston to San José flight.

How have Boston to San José flight prices changed over time?

As of June 2026, prices for Boston to San José flights are approximately 39% more expensive when compared to flights at the same time last year.

When to book flights from Boston to San José

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to San José according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to San José (BOS to SJO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San José

Fastest flight time

7h 33m

Direct flights

None
The fastest flight from Boston to San José takes 7h 33m
There are no direct flights from Boston to San José. There are no popular flight routes from Boston to San José.
Search flight deals

Frequently asked questions about flying from Boston to San José

  • How far is Boston Logan Intl to San José Juan Santamaria Intl by plane?

    San José Juan Santamaria Intl is 2373.8 mi away from Boston Logan Intl. Typically, this will take 7h 33m by plane in normal conditions.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to San José Juan Santamaria Intl Airport?

    Prices for flights from Boston Logan Intl Airport to San José Juan Santamaria Intl Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to San José Juan Santamaria Intl Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to San José Juan Santamaria Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The necessary travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to San José?

Best airlines flying from Boston to San José

Compare and see reviews for airlines that fly from Boston to San José with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $137Free CancellationRating
7.9
8,395 reviews
Search Delta flights
Copa AirlinesPriceFrom $179Free CancellationRating
7.5
1,568 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $243Free CancellationRating
7.4
9,774 reviews
Search United Airlines flights
JetBluePriceFrom $251Free CancellationRating
7.1
2,984 reviews
Search JetBlue flights
American AirlinesPriceFrom $287Free CancellationRating
7.1
11,641 reviews
Search American Airlines flights
GOLPriceFrom $316Free CancellationRating
7.3
1,224 reviews
Search GOL flights
AviancaPriceFrom $324Free CancellationRating
6.5
2,528 reviews
Search Avianca flights
FrontierPriceFrom $381Free CancellationRating
5.6
2,916 reviews
Search Frontier flights
SouthwestPriceFrom $470Free CancellationRating
8.0
4,256 reviews
Search Southwest flights

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Monteverde
Alajuela
Heredia
Santa Elena
Dominical
San Gerardo de Dota
Esterillos Este

Why use momondo?

Why should I use momondo to find a flight deal from Boston to San José?

Finding the right flight to San José from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San José quick and easy, saving you time and money.

Can I find flights from Boston to San José with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San José from Boston with this policy.

How can momondo help me find flights from Boston to San José?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San José from Boston.

I’m not ready to book a flight from Boston to San José right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to San José now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San José and let you know when they change.

An easier way to manage your San José trip

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