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Cheap flights from Boston to San José from $134

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 5/17. 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
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.
Multiple Airlines Logo
5:45 am - 11:45 am
BOS
-
SJO
8h 00m
1 stop
Multiple Airlines Logo
5:48 pm - 10:45 am
SJO
-
BOS
14h 57m
1 stop
$315Multiple Airlines
Mon, Jun 8 - Tue, Jun 9
Avianca Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Avianca Logo
5:05 am - 2:50 pm
SJO
-
BOS
7h 45m
1 stop
$325Avianca
Wed, Jun 10 - Thu, Jun 18
American Airlines Logo
7:00 am - 10:42 pm
BOS
-
SJO
17h 42m
1 stop
American Airlines Logo
12:50 pm - 12:59 am
SJO
-
BOS
10h 09m
1 stop
$330American Airlines
Thu, May 28 - Thu, Jun 4
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
$332Avianca
Wed, Jun 3 - Sun, Jun 7
Avianca Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Avianca Logo
5:05 am - 2:50 pm
SJO
-
BOS
7h 45m
1 stop
$333Avianca
Mon, Jun 1 - Sun, Jun 7
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
$335American Airlines
Wed, Oct 7 - Wed, Oct 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
$336Avianca
Sat, Aug 22 - Mon, Aug 31
GOL Logo
6:00 am - 7:52 pm
BOS
-
SJO
15h 52m
2 stops
GOL Logo
2:52 pm - 11:10 am
SJO
-
BOS
18h 18m
2 stops
$337GOL
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
6:00 am - 7:24 pm
BOS
-
SJO
15h 24m
1 stop
American Airlines Logo
6:01 am - 12:59 am
SJO
-
BOS
16h 58m
1 stop
$338American Airlines
Mon, Jun 1 - Sat, Jun 6
Multiple Airlines Logo
5:45 am - 11:45 am
BOS
-
SJO
8h 00m
1 stop
Multiple Airlines Logo
5:05 am - 2:50 pm
SJO
-
BOS
7h 45m
1 stop
$340Multiple Airlines
Fri, May 29 - Fri, Jun 5

Copa Airlines flights from Boston to San José

Our best Copa Airlines deals on Boston to San José flight tickets
Copa Airlines
May 14
BOS4:00 pmBoston Logan Intl
19h 06m
1 stop
SJO9:06 amSan José Juan Santamaria Intl
May 17
SJO4:10 amSan José Juan Santamaria Intl
16h 58m
1 stop
BOS11:08 pmBoston Logan Intl
$344
Copa Airlines
May 26
BOS4:00 pmBoston Logan Intl
18h 21m
1 stop
SJO8:21 amSan José Juan Santamaria Intl
Jun 2
SJO4:10 amSan José Juan Santamaria Intl
8h 34m
1 stop
BOS2:44 pmBoston Logan Intl
$359
Copa Airlines
May 10
BOS4:00 pmBoston Logan Intl
17h 09m
1 stop
SJO7:09 amSan José Juan Santamaria Intl
May 14
SJO6:01 pmSan José Juan Santamaria Intl
27h 07m
1 stop
BOS11:08 pmBoston Logan Intl
$365

American Airlines flights from Boston to San José

Our best American Airlines deals on Boston to San José flight tickets
American Airlines
May 6
BOS7:00 amBoston Logan Intl
16h 36m
1 stop
SJO9:36 pmSan José Juan Santamaria Intl
May 13
SJO12:35 pmSan José Juan Santamaria Intl
8h 32m
1 stop
BOS11:07 pmBoston Logan Intl
$330
American Airlines
Oct 7
BOS7:19 pmBoston Logan Intl
17h 46m
2 stops
SJO11:05 amSan José Juan Santamaria Intl
Oct 21
SJO2:45 pmSan José Juan Santamaria Intl
7h 49m
1 stop
BOS12:34 amBoston Logan Intl
$335
American Airlines
May 2
BOS6:00 amBoston Logan Intl
17h 36m
1 stop
SJO9:36 pmSan José Juan Santamaria Intl
May 12
SJO12:35 pmSan José Juan Santamaria Intl
19h 26m
1 stop
BOS10:01 amBoston Logan Intl
$338

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 April 29, 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

Mon 6/8

5:45 am-11:45 am

1 stop8h 00m

San José Juan Santamaria Intl

Tue 6/9

5:48 pm-10:45 am

1 stop14h 57m

$315

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 6/10

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Thu 6/18

5:05 am-2:50 pm

1 stop7h 45m

$325

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 5/28

7:00 am-10:42 pm

1 stop17h 42m

San José Juan Santamaria Intl

Thu 6/4

12:50 pm-12:59 am

1 stop10h 09m

$330

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 6/3

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Sun 6/7

7:45 pm-2:50 pm

1 stop17h 05m

$332

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 6/1

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Sun 6/7

5:05 am-2:50 pm

1 stop7h 45m

$333

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 10/7

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

$335

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sat 8/22

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Mon 8/31

7:45 pm-2:50 pm

1 stop17h 05m

$336

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sat 8/22

6:00 am-7:52 pm

2 stops15h 52m

San José Juan Santamaria Intl

Sat 8/29

2:52 pm-11:10 am

2 stops18h 18m

$337

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 6/1

6:00 am-7:24 pm

1 stop15h 24m

San José Juan Santamaria Intl

Sat 6/6

6:01 am-12:59 am

1 stop16h 58m

$338
Quickest round-trip

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 5/29

5:45 am-11:45 am

1 stop8h 00m

San José Juan Santamaria Intl

Fri 6/5

5:05 am-2:50 pm

1 stop7h 45m

$340

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 $370.

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 $456 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 $382 on momondo.

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

As of April 2026, prices for Boston to San José flights are approximately 10% 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

8h 00m

Direct flights

None
The fastest flight from Boston to San José takes 8h 00m
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 8h 00m 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
8,467 reviews
Search Delta flights
Spirit AirlinesPriceFrom $143Free CancellationRating
6.3
8,631 reviews
Search Spirit Airlines flights
Copa AirlinesPriceFrom $178Free CancellationRating
7.5
1,580 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $243Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights
AviancaPriceFrom $246Free CancellationRating
6.5
2,514 reviews
Search Avianca flights
JetBluePriceFrom $251Free CancellationRating
7.1
2,968 reviews
Search JetBlue flights
American AirlinesPriceFrom $287Free CancellationRating
7.1
11,680 reviews
Search American Airlines flights
GOLPriceFrom $316Free CancellationRating
7.3
1,207 reviews
Search GOL flights
FrontierPriceFrom $381Free CancellationRating
5.6
2,970 reviews
Search Frontier flights
SouthwestPriceFrom $441Free CancellationRating
8.0
4,315 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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