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Cheap flights from Boston to San José from $107

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 11/3. 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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Cheap round-trip flights

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Spirit Airlines Logo
6:16 am - 11:30 amBOS-SJO
7h 14m1 stop
Spirit Airlines Logo
12:35 pm - 11:59 pmSJO-BOS
9h 24m1 stop
$218Spirit Airlines
Find Deal
Sun, Oct 26 - Wed, Oct 29
Spirit Airlines Logo
6:16 am - 11:30 amBOS-SJO
7h 14m1 stop
Spirit Airlines Logo
12:35 pm - 11:59 pmSJO-BOS
9h 24m1 stop
$219Spirit Airlines
Find Deal
Sat, Oct 25 - Wed, Oct 29
JetBlue Logo
8:15 pm - 8:53 amBOS-SJO
13h 38m1 stop
JetBlue Logo
10:00 am - 7:45 pmSJO-BOS
8h 45m1 stop
$236JetBlue
Find Deal
Sun, Mar 1 - Thu, Mar 5
Copa Airlines Logo
3:49 pm - 9:04 amBOS-SJO
19h 15m1 stop
Copa Airlines Logo
8:10 am - 10:03 pmSJO-BOS
12h 53m1 stop
$240Copa Airlines
Find Deal
Thu, Oct 23 - Tue, Nov 4
Copa Airlines Logo
3:49 pm - 4:52 pmBOS-SJO
27h 03m3 stops
Copa Airlines Logo
11:00 am - 10:03 pmSJO-BOS
10h 03m1 stop
$245Copa Airlines
Find Deal
Thu, Oct 23 - Mon, Nov 3
JetBlue Logo
7:40 pm - 8:52 amBOS-SJO
14h 12m1 stop
JetBlue Logo
2:01 pm - 11:11 pmSJO-BOS
8h 10m1 stop
$249JetBlue
Find Deal
Fri, Dec 5 - Wed, Dec 10
American Airlines Logo
1:45 pm - 10:28 pmBOS-SJO
9h 43m1 stop
American Airlines Logo
1:15 pm - 11:44 pmSJO-BOS
9h 29m2 stops
$251American Airlines
Find Deal
Wed, Dec 3 - Fri, Dec 12
American Airlines Logo
1:45 pm - 10:28 pmBOS-SJO
9h 43m1 stop
American Airlines Logo
1:02 pm - 10:33 pmSJO-BOS
8h 31m1 stop
$253American Airlines
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Wed, Dec 3 - Fri, Dec 12
United Airlines Logo
6:00 am - 12:42 pmBOS-SJO
7h 42m1 stop
United Airlines Logo
8:45 am - 11:41 pmSJO-BOS
13h 56m2 stops
$256United Airlines
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Mon, Nov 10 - Wed, Dec 10
United Airlines Logo
9:15 am - 7:39 pmBOS-SJO
12h 24m2 stops
United Airlines Logo
12:35 pm - 11:15 pmSJO-BOS
9h 40m1 stop
$284United Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4

American Airlines flights from Boston to San José

Our best American Airlines deals on Boston to San José flight tickets
American Airlines
Dec 3
BOS1:45 pmBoston Logan Intl
9h 43m
1 stop
SJO10:28 pmSan José Juan Santamaria Intl
Dec 12
SJO1:15 pmSan José Juan Santamaria Intl
9h 29m
2 stops
BOS11:44 pmBoston Logan Intl
$251
Find similar
American Airlines
Dec 3
BOS1:45 pmBoston Logan Intl
9h 43m
1 stop
SJO10:28 pmSan José Juan Santamaria Intl
Dec 12
SJO1:02 pmSan José Juan Santamaria Intl
8h 31m
1 stop
BOS10:33 pmBoston Logan Intl
$253
Find similar
American Airlines
Dec 4
BOS10:45 amBoston Logan Intl
12h 43m
1 stop
SJO10:28 pmSan José Juan Santamaria Intl
Dec 13
SJO6:20 amSan José Juan Santamaria Intl
15h 40m
1 stop
BOS11:00 pmBoston Logan Intl
$257
Find similar

Spirit Airlines flights from Boston to San José

Our best Spirit Airlines deals on Boston to San José flight tickets
Spirit Airlines
Oct 26
BOS6:16 amBoston Logan Intl
7h 14m
1 stop
SJO11:30 amSan José Juan Santamaria Intl
Oct 29
SJO12:35 pmSan José Juan Santamaria Intl
9h 24m
1 stop
BOS11:59 pmBoston Logan Intl
$218
Find similar
Spirit Airlines
Oct 25
BOS6:16 amBoston Logan Intl
7h 14m
1 stop
SJO11:30 amSan José Juan Santamaria Intl
Oct 29
SJO12:35 pmSan José Juan Santamaria Intl
9h 24m
1 stop
BOS11:59 pmBoston Logan Intl
$219
Find similar
Spirit Airlines
Nov 11
BOS6:16 amBoston Logan Intl
7h 09m
1 stop
SJO12:25 pmSan José Juan Santamaria Intl
Nov 18
SJO1:30 pmSan José Juan Santamaria Intl
9h 29m
1 stop
BOS11:59 pmBoston Logan Intl
$223
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 October 10, 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

Sun 10/26

6:16 am-11:30 am

1 stop7h 14m

San José Juan Santamaria Intl

Wed 10/29

12:35 pm-11:59 pm

1 stop9h 24m

$218

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sat 10/25

6:16 am-11:30 am

1 stop7h 14m

San José Juan Santamaria Intl

Wed 10/29

12:35 pm-11:59 pm

1 stop9h 24m

$219

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sun 3/1

8:15 pm-8:53 am

1 stop13h 38m

San José Juan Santamaria Intl

Thu 3/5

10:00 am-7:45 pm

1 stop8h 45m

$236

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 10/23

3:49 pm-9:04 am

1 stop19h 15m

San José Juan Santamaria Intl

Tue 11/4

8:10 am-10:03 pm

1 stop12h 53m

$240

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 10/23

3:49 pm-4:52 pm

3 stops27h 03m

San José Juan Santamaria Intl

Mon 11/3

11:00 am-10:03 pm

1 stop10h 03m

$245

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 12/5

7:40 pm-8:52 am

1 stop14h 12m

San José Juan Santamaria Intl

Wed 12/10

2:01 pm-11:11 pm

1 stop8h 10m

$249

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 12/3

1:45 pm-10:28 pm

1 stop9h 43m

San José Juan Santamaria Intl

Fri 12/12

1:15 pm-11:44 pm

2 stops9h 29m

$251

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 12/3

1:45 pm-10:28 pm

1 stop9h 43m

San José Juan Santamaria Intl

Fri 12/12

1:02 pm-10:33 pm

1 stop8h 31m

$253

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 11/10

6:00 am-12:42 pm

1 stop7h 42m

San José Juan Santamaria Intl

Wed 12/10

8:45 am-11:41 pm

2 stops13h 56m

$256

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Fri 10/31

9:15 am-7:39 pm

2 stops12h 24m

San José Juan Santamaria Intl

Tue 11/4

12:35 pm-11:15 pm

1 stop9h 40m

$284

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 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 $392. 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 $412.

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 $526 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 $447 on momondo.

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

As of October 2025, prices for Boston to San José flights are approximately 6% 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

Direct flights

None
There are no direct flights from Boston to San José. There are no popular flight routes from Boston to San José.
Search flight deals

  • 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 09m 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 $226Free CancellationRating
6.3
8,087 reviews
Search Spirit Airlines flights
FrontierPriceFrom $297Free CancellationRating
5.8
3,143 reviews
Search Frontier flights
Copa AirlinesPriceFrom $307Free CancellationRating
7.6
1,545 reviews
Search Copa Airlines flights
AviancaPriceFrom $334Free CancellationRating
6.7
2,447 reviews
Search Avianca flights
DeltaPriceFrom $343Free CancellationRating
7.9
7,971 reviews
Search Delta flights
American AirlinesPriceFrom $344Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
JetBluePriceFrom $351Free CancellationRating
7.2
2,908 reviews
Search JetBlue flights
United AirlinesPriceFrom $384Free CancellationRating
7.4
8,966 reviews
Search United Airlines flights
SouthwestPriceFrom $590Free CancellationRating
8.0
4,236 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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