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Cheap flights from Boston to San José from $171

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 8/17. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:55 am - 10:15 pm
BOS
-
SJO
16h 20m
1 stop
Delta Logo
7:00 am - 5:48 pm
SJO
-
BOS
9h 48m
1 stop
$356Delta
Tue, Nov 10 - Sat, Nov 14
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
American Airlines Logo
9:24 am - 7:53 pm
BOS
-
SJO
12h 29m
2 stops
American Airlines Logo
6:00 am - 10:50 pm
SJO
-
BOS
14h 50m
2 stops
$366American Airlines
Mon, Aug 24 - Sun, Sep 6
American Airlines Logo
6:19 pm - 12:22 pm
BOS
-
SJO
19h 03m
1 stop
American Airlines Logo
7:00 am - 9:17 pm
SJO
-
BOS
13h 17m
2 stops
$368American Airlines
Sat, Nov 14 - Sat, Nov 21
Copa Airlines Logo
3:55 pm - 10:58 am
BOS
-
SJO
21h 03m
1 stop
Copa Airlines Logo
6:17 pm - 11:02 pm
SJO
-
BOS
26h 45m
1 stop
$373Copa Airlines
Thu, Sep 24 - Sun, Sep 27
Avianca Logo
3:25 pm - 11:40 pm
BOS
-
SJO
9h 15m
1 stop
Avianca Logo
5:00 am - 1:50 pm
SJO
-
BOS
7h 50m
1 stop
$375Avianca
Mon, Nov 2 - Sun, Jan 31
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
$385Avianca
Fri, Oct 9 - Sat, Oct 17
American Airlines Logo
8:45 pm - 1:52 pm
BOS
-
SJO
19h 07m
2 stops
American Airlines Logo
7:00 am - 10:50 pm
SJO
-
BOS
13h 50m
2 stops
$386American Airlines
Tue, Sep 1 - Tue, Sep 8
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
$387Avianca
Wed, Sep 2 - Wed, Sep 9

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Delta flights from Boston to San José

Our best Delta deals on Boston to San José flight tickets
Delta
Nov 10
BOS6:55 amBoston Logan Intl
16h 20m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
Nov 14
SJO7:00 amSan José Juan Santamaria Intl
9h 48m
1 stop
BOS5:48 pmBoston Logan Intl
$356
Delta
Nov 7
BOS6:55 pmBoston Logan Intl
19h 03m
1 stop
SJO12:58 pmSan José Juan Santamaria Intl
Nov 17
SJO7:00 amSan José Juan Santamaria Intl
9h 48m
1 stop
BOS5:48 pmBoston Logan Intl
$426

Avianca flights from Boston to San José

Our best Avianca deals on Boston to San José flight tickets
Avianca
Nov 2
BOS3:25 pmBoston Logan Intl
9h 15m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl
Jan 31
SJO5:00 amSan José Juan Santamaria Intl
7h 50m
1 stop
BOS1:50 pmBoston Logan Intl
$375
Avianca
Oct 9
BOS4:50 pmBoston Logan Intl
8h 50m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl
Oct 17
SJO7:45 pmSan José Juan Santamaria Intl
17h 05m
1 stop
BOS2:50 pmBoston Logan Intl
$385
Avianca
Sep 2
BOS4:50 pmBoston Logan Intl
8h 50m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl
Sep 9
SJO5:05 amSan José Juan Santamaria Intl
7h 45m
1 stop
BOS2:50 pmBoston Logan Intl
$387

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 15, 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

Tue 11/10

6:55 am-10:15 pm

1 stop16h 20m

San José Juan Santamaria Intl

Sat 11/14

7:00 am-5:48 pm

1 stop9h 48m

$356

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

Mon 8/24

9:24 am-7:53 pm

2 stops12h 29m

San José Juan Santamaria Intl

Sun 9/6

6:00 am-10:50 pm

2 stops14h 50m

$366

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-9:17 pm

2 stops13h 17m

$368

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 9/24

3:55 pm-10:58 am

1 stop21h 03m

San José Juan Santamaria Intl

Sun 9/27

6:17 pm-11:02 pm

1 stop26h 45m

$373

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 11/2

3:25 pm-11:40 pm

1 stop9h 15m

San José Juan Santamaria Intl

Sun 1/31

5:00 am-1:50 pm

1 stop7h 50m

$375

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 10/9

4:50 pm-11:40 pm

1 stop8h 50m

San José Juan Santamaria Intl

Sat 10/17

7:45 pm-2:50 pm

1 stop17h 05m

$385

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 9/1

8:45 pm-1:52 pm

2 stops19h 07m

San José Juan Santamaria Intl

Tue 9/8

7:00 am-10:50 pm

2 stops13h 50m

$386
Quickest round-trip

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

Wed 9/9

5:05 am-2:50 pm

1 stop7h 45m

$387

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 November to fly from Boston, when ticket prices are also cheap, with an average price of $384.

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 $462 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 $390 on momondo.

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

You could potentially save up to 9% 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 52% 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
8,402 reviews
Search Delta flights
Copa AirlinesPriceFrom $178Free CancellationRating
7.5
1,570 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $243Free CancellationRating
7.4
9,824 reviews
Search United Airlines flights
JetBluePriceFrom $251Free CancellationRating
7.1
2,981 reviews
Search JetBlue flights
American AirlinesPriceFrom $286Free CancellationRating
7.1
11,663 reviews
Search American Airlines flights
GOLPriceFrom $316Free CancellationRating
7.3
1,230 reviews
Search GOL flights
AviancaPriceFrom $325Free CancellationRating
6.5
2,532 reviews
Search Avianca flights
FrontierPriceFrom $381Free CancellationRating
5.6
2,889 reviews
Search Frontier flights
SouthwestPriceFrom $470Free CancellationRating
7.9
4,232 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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