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Cheap flights from Boston to San José from $110

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 12/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
United Airlines Logo
5:45 am - 6:16 pmBOS-SJO
13h 31m2 stops
United Airlines Logo
9:05 am - 6:41 pmSJO-BOS
8h 36m1 stop
$244United Airlines
Find Deal
Mon, Feb 2 - Thu, Feb 12
American Airlines Logo
8:05 am - 11:43 pmBOS-SJO
16h 38m1 stop
American Airlines Logo
6:00 am - 7:07 pmSJO-BOS
12h 07m2 stops
$248American Airlines
Find Deal
Wed, Feb 4 - Wed, Feb 11
American Airlines Logo
7:00 am - 10:30 pmBOS-SJO
16h 30m1 stop
American Airlines Logo
4:02 pm - 10:01 amSJO-BOS
16h 59m1 stop
$249American Airlines
Find Deal
Sun, Feb 1 - Thu, Feb 5
United Airlines Logo
7:00 am - 8:39 pmBOS-SJO
14h 39m1 stop
United Airlines Logo
11:28 pm - 9:14 amSJO-BOS
8h 46m1 stop
$252United Airlines
Find Deal
Sun, Dec 7 - Fri, Dec 12
American Airlines Logo
2:43 pm - 10:30 pmBOS-SJO
8h 47m1 stop
American Airlines Logo
6:00 am - 7:02 pmSJO-BOS
12h 02m2 stops
$253American Airlines
Find Deal
Mon, Feb 2 - Tue, Feb 10
American Airlines Logo
2:43 pm - 10:30 pmBOS-SJO
8h 47m1 stop
American Airlines Logo
7:00 am - 11:59 pmSJO-BOS
15h 59m1 stop
$254American Airlines
Find Deal
Tue, Feb 3 - Sat, Feb 14
American Airlines Logo
11:10 am - 10:30 pmBOS-SJO
12h 20m2 stops
American Airlines Logo
12:31 am - 1:11 pmSJO-BOS
11h 40m2 stops
$255American Airlines
Find Deal
Tue, Feb 3 - Fri, Feb 13
American Airlines Logo
11:10 am - 10:30 pmBOS-SJO
12h 20m2 stops
American Airlines Logo
11:25 am - 11:59 pmSJO-BOS
11h 34m2 stops
$256American Airlines
Find Deal
Wed, Feb 4 - Thu, Feb 12
American Airlines Logo
6:00 am - 10:28 pmBOS-SJO
17h 28m1 stop
American Airlines Logo
6:20 am - 11:00 pmSJO-BOS
15h 40m1 stop
$257American Airlines
Find Deal
Fri, Dec 5 - Fri, Dec 12
American Airlines Logo
6:00 am - 10:28 pmBOS-SJO
17h 28m1 stop
American Airlines Logo
7:09 am - 8:45 pmSJO-BOS
12h 36m1 stop
$258American Airlines
Find Deal
Mon, Dec 8 - Sat, Jan 17

American Airlines flights from Boston to San José

Our best American Airlines deals on Boston to San José flight tickets
American Airlines
Feb 4
BOS8:05 amBoston Logan Intl
16h 38m
1 stop
SJO11:43 pmSan José Juan Santamaria Intl
Feb 12
SJO11:25 amSan José Juan Santamaria Intl
11h 34m
2 stops
BOS11:59 pmBoston Logan Intl
$248
Find similar
American Airlines
Feb 1
BOS7:00 amBoston Logan Intl
16h 30m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
Feb 5
SJO4:02 pmSan José Juan Santamaria Intl
16h 59m
1 stop
BOS10:01 amBoston Logan Intl
$249
Find similar
American Airlines
Feb 2
BOS2:43 pmBoston Logan Intl
8h 47m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
Feb 10
SJO6:00 amSan José Juan Santamaria Intl
12h 02m
2 stops
BOS7:02 pmBoston Logan Intl
$253
Find similar

United Airlines flights from Boston to San José

Our best United Airlines deals on Boston to San José flight tickets
United Airlines
Feb 2
BOS5:45 amBoston Logan Intl
13h 31m
2 stops
SJO6:16 pmSan José Juan Santamaria Intl
Feb 12
SJO9:05 amSan José Juan Santamaria Intl
8h 36m
1 stop
BOS6:41 pmBoston Logan Intl
$244
Find similar
United Airlines
Dec 6
BOS5:30 amBoston Logan Intl
8h 25m
1 stop
SJO12:55 pmSan José Juan Santamaria Intl
Dec 13
SJO8:45 amSan José Juan Santamaria Intl
13h 30m
1 stop
BOS11:15 pmBoston Logan Intl
$248
Find similar
United Airlines
Dec 7
BOS7:00 amBoston Logan Intl
14h 39m
1 stop
SJO8:39 pmSan José Juan Santamaria Intl
Dec 12
SJO11:28 pmSan José Juan Santamaria Intl
8h 46m
1 stop
BOS9:14 amBoston Logan Intl
$252
Find similar

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 November 24, 2025.
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

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 2/2

5:45 am-6:16 pm

2 stops13h 31m

San José Juan Santamaria Intl

Thu 2/12

9:05 am-6:41 pm

1 stop8h 36m

$244

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 2/4

8:05 am-11:43 pm

1 stop16h 38m

San José Juan Santamaria Intl

Wed 2/11

6:00 am-7:07 pm

2 stops12h 07m

$248

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sun 2/1

7:00 am-10:30 pm

1 stop16h 30m

San José Juan Santamaria Intl

Thu 2/5

4:02 pm-10:01 am

1 stop16h 59m

$249

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sun 12/7

7:00 am-8:39 pm

1 stop14h 39m

San José Juan Santamaria Intl

Fri 12/12

11:28 pm-9:14 am

1 stop8h 46m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 2/2

2:43 pm-10:30 pm

1 stop8h 47m

San José Juan Santamaria Intl

Tue 2/10

6:00 am-7:02 pm

2 stops12h 02m

$253

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 2/3

2:43 pm-10:30 pm

1 stop8h 47m

San José Juan Santamaria Intl

Sat 2/14

7:00 am-11:59 pm

1 stop15h 59m

$254

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 2/3

11:10 am-10:30 pm

2 stops12h 20m

San José Juan Santamaria Intl

Fri 2/13

12:31 am-1:11 pm

2 stops11h 40m

$255

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 2/4

11:10 am-10:30 pm

2 stops12h 20m

San José Juan Santamaria Intl

Thu 2/12

11:25 am-11:59 pm

2 stops11h 34m

$256

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 12/5

6:00 am-10:28 pm

1 stop17h 28m

San José Juan Santamaria Intl

Fri 12/12

6:20 am-11:00 pm

1 stop15h 40m

$257

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 12/8

6:00 am-10:28 pm

1 stop17h 28m

San José Juan Santamaria Intl

Sat 1/17

7:09 am-8:45 pm

1 stop12h 36m

$258

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, September 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 $389. If you don’t want to visit San José in September, then you should wait until October to fly from Boston, when ticket prices are also cheap, with an average price of $394.

What is the cheapest day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Boston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $450. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Boston to San José on a Saturday will generally be more expensive and average around $660. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San José?

Our data shows that the cheapest Boston to San José flights are usually those with departure times in the evening. Our users have found flights to San José in the evening for as low as $445. Flights in the morning are often more expensive with an average ticket price of $583.

How far in advance should I book a flight 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 $506 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 $439 on momondo.

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

As of November 2025, prices for Boston to San José flights are approximately 29% cheaper 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

Direct flights

None
There are no direct flights from Boston to San José. There are no popular flight routes from Boston to San José.
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  • 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 40m 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
Spirit AirlinesPriceFrom $221Free CancellationRating
6.3
8,159 reviews
Search Spirit Airlines flights
Copa AirlinesPriceFrom $277Free CancellationRating
7.6
1,567 reviews
Search Copa Airlines flights
JetBluePriceFrom $281Free CancellationRating
7.2
2,903 reviews
Search JetBlue flights
FrontierPriceFrom $297Free CancellationRating
5.8
3,097 reviews
Search Frontier flights
American AirlinesPriceFrom $332Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
AviancaPriceFrom $333Free CancellationRating
6.6
2,478 reviews
Search Avianca flights
DeltaPriceFrom $344Free CancellationRating
7.9
7,993 reviews
Search Delta flights
United AirlinesPriceFrom $362Free CancellationRating
7.4
9,039 reviews
Search United Airlines flights
SouthwestPriceFrom $590Free CancellationRating
8.0
4,252 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
Alajuela
Monteverde
Heredia
Dominical
Santa Elena
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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