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Cheap flights from New Hampshire to Costa Rica from $157

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New Hampshire to Costa Rica departing on 9/7. 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 New Hampshire to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:00 am - 1:18 pmBOS  Boston Logan Intl-LIR Liberia
10h 18m1 stop Miami
American Airlines Logo
2:47 pm - 8:45 amLIR  Liberia-BOS Boston Logan Intl
15h 58m2 stops Miami Washington, D.C. Reagan-National
$344American Airlines
Mon, Sep 14 - Wed, Sep 23
American Airlines Logo
6:00 am - 1:18 pmBOS  Boston Logan Intl-LIR Liberia
9h 18m1 stop Miami
American Airlines Logo
2:47 pm - 12:59 amLIR  Liberia-BOS Boston Logan Intl
8h 12m1 stop Miami
$344American Airlines
Mon, Sep 14 - Wed, Sep 23
United Airlines Logo
8:05 pm - 11:44 amBOS  Boston Logan Intl-LIR Liberia
16h 39m1 stop Newark
United Airlines Logo
5:20 pm - 7:43 amLIR  Liberia-BOS Boston Logan Intl
13h 23m1 stop Newark
$352United Airlines
Sun, Nov 8 - Wed, Nov 11
United Airlines Logo
7:15 am - 6:37 pmBOS  Boston Logan Intl-LIR Liberia
12h 22m1 stop Houston George Bush Intcntl
United Airlines Logo
5:20 pm - 10:51 amLIR  Liberia-BOS Boston Logan Intl
16h 31m1 stop Newark
$352United Airlines
Sun, Nov 8 - Wed, Nov 11
Air Canada Logo
5:00 pm - 1:10 pmBOS  Boston Logan Intl-LIR Liberia
22h 10m1 stop Toronto Pearson Intl
Air Canada Logo
2:20 pm - 10:28 pmLIR  Liberia-BOS Boston Logan Intl
30h 08m1 stop Montreal Pierre Elliott Trudeau Intl
$379Air Canada
Sat, Oct 24 - Sat, Oct 31
Air Canada Logo
3:30 pm - 2:20 pmBOS  Boston Logan Intl-LIR Liberia
23h 50m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
3:10 pm - 10:37 pmLIR  Liberia-BOS Boston Logan Intl
30h 27m1 stop Toronto Pearson Intl
$380Air Canada
Mon, Nov 2 - Sat, Nov 7
Copa Airlines Logo
8:47 am - 8:19 amBOS  Boston Logan Intl-SJO San José Juan Santamaria Intl
25h 32m1 stop Panama City Tocumen Intl
Copa Airlines Logo
5:55 pm - 11:02 pmSJO  San José Juan Santamaria Intl-BOS Boston Logan Intl
27h 07m1 stop Panama City Tocumen Intl
$384Copa Airlines
Tue, Sep 8 - Mon, Sep 14
Copa Airlines Logo
3:55 pm - 9:04 amBOS  Boston Logan Intl-SJO San José Juan Santamaria Intl
19h 09m1 stop Panama City Tocumen Intl
Copa Airlines Logo
10:03 am - 11:02 pmSJO  San José Juan Santamaria Intl-BOS Boston Logan Intl
10h 59m1 stop Panama City Tocumen Intl
$384Copa Airlines
Thu, Sep 24 - Sun, Sep 27
Delta Logo
1:45 pm - 10:15 pmBOS  Boston Logan Intl-SJO San José Juan Santamaria Intl
9h 30m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 11:04 pmSJO  San José Juan Santamaria Intl-BOS Boston Logan Intl
15h 04m1 stop Atlanta Hartsfield-Jackson
$386Delta
Tue, Nov 17 - Fri, Nov 20
Delta Logo
8:59 pm - 1:05 pmBOS  Boston Logan Intl-SJO San José Juan Santamaria Intl
17h 06m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 11:04 pmSJO  San José Juan Santamaria Intl-BOS Boston Logan Intl
15h 04m1 stop Atlanta Hartsfield-Jackson
$386Delta
Thu, Nov 12 - Mon, Nov 16

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Delta flights from New Hampshire to Costa Rica

Our best Delta deals on New Hampshire to Costa Rica flight tickets
Delta
Nov 27
BOS8:59 pmBoston Logan Intl
17h 06m
1 stop
SJO1:05 pmSan José Juan Santamaria Intl
Dec 17
SJO7:00 amSan José Juan Santamaria Intl
8h 24m
1 stop
BOS4:24 pmBoston Logan Intl
$393
Delta
Dec 8
BOS1:45 pmBoston Logan Intl
9h 30m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
Dec 17
SJO7:00 amSan José Juan Santamaria Intl
8h 24m
1 stop
BOS4:24 pmBoston Logan Intl
$411
Delta
Dec 4
BOS2:55 pmBoston Logan Intl
8h 20m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
Dec 16
SJO2:30 pmSan José Juan Santamaria Intl
9h 45m
1 stop
BOS1:15 amBoston Logan Intl
$416

Southwest flights from New Hampshire to Costa Rica

Our best Southwest deals on New Hampshire to Costa Rica flight tickets
Southwest
Oct 28
BOS6:45 amBoston Logan Intl
14h 55m
2 stops
SJO7:40 pmSan José Juan Santamaria Intl
Oct 29
SJO1:30 pmSan José Juan Santamaria Intl
17h 25m
2 stops
BOS8:55 amBoston Logan Intl
$427
Southwest
Oct 21
MHT5:20 amManchester
16h 20m
2 stops
SJO7:40 pmSan José Juan Santamaria Intl
Nov 18
SJO1:20 pmSan José Juan Santamaria Intl
18h 15m
2 stops
MHT8:35 amManchester
$437
Southwest
Sep 26
MHT6:45 amManchester
7h 30m
1 stop
SJO12:15 pmSan José Juan Santamaria Intl
Oct 3
SJO9:00 amSan José Juan Santamaria Intl
11h 45m
1 stop
MHT10:45 pmManchester
$574

momondo Fare Finder

 
Customize your flight search to find flights from New Hampshire to Costa Rica 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 August 14, 2026.
Use the filters below to find and compare flights from New Hampshire to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonLiberia

BOS Boston Logan Intl - LIR Liberia

BOSLIR

Boston Logan Intl

Mon 9/14

5:00 am-1:18 pm

1 stop10h 18m

Liberia

Wed 9/23

2:47 pm-8:45 am

2 stops15h 58m

$344
Quickest round-trip

BostonLiberia

BOS Boston Logan Intl - LIR Liberia

BOSLIR

Boston Logan Intl

Mon 9/14

6:00 am-1:18 pm

1 stop9h 18m

Liberia

Wed 9/23

2:47 pm-12:59 am

1 stop8h 12m

$344

BostonLiberia

BOS Boston Logan Intl - LIR Liberia

BOSLIR

Boston Logan Intl

Sun 11/8

8:05 pm-11:44 am

1 stop16h 39m

Liberia

Wed 11/11

5:20 pm-7:43 am

1 stop13h 23m

$352

BostonLiberia

BOS Boston Logan Intl - LIR Liberia

BOSLIR

Boston Logan Intl

Sun 11/8

7:15 am-6:37 pm

1 stop12h 22m

Liberia

Wed 11/11

5:20 pm-10:51 am

1 stop16h 31m

$352

BostonLiberia

BOS Boston Logan Intl - LIR Liberia

BOSLIR

Boston Logan Intl

Sat 10/24

5:00 pm-1:10 pm

1 stop22h 10m

Liberia

Sat 10/31

2:20 pm-10:28 pm

1 stop30h 08m

$379

BostonLiberia

BOS Boston Logan Intl - LIR Liberia

BOSLIR

Boston Logan Intl

Mon 11/2

3:30 pm-2:20 pm

1 stop23h 50m

Liberia

Sat 11/7

3:10 pm-10:37 pm

1 stop30h 27m

$380

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Tue 9/8

8:47 am-8:19 am

1 stop25h 32m

San José Juan Santamaria Intl

Mon 9/14

5:55 pm-11:02 pm

1 stop27h 07m

$384

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Thu 9/24

3:55 pm-9:04 am

1 stop19h 09m

San José Juan Santamaria Intl

Sun 9/27

10:03 am-11:02 pm

1 stop10h 59m

$384

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Tue 11/17

1:45 pm-10:15 pm

1 stop9h 30m

San José Juan Santamaria Intl

Fri 11/20

7:00 am-11:04 pm

1 stop15h 04m

$386

BostonSan José

BOS Boston Logan Intl - SJO San José Juan Santamaria Intl

BOSSJO

Boston Logan Intl

Thu 11/12

8:59 pm-1:05 pm

1 stop17h 06m

San José Juan Santamaria Intl

Mon 11/16

7:00 am-11:04 pm

1 stop15h 04m

$386

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 Costa Rica from

How to get the cheapest flight ticket from New Hampshire to Costa Rica

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 Costa Rica?

The cheapest month to fly to Costa Rica from New Hampshire is in October. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in October, then February is your next best option. Flight prices from New Hampshire to Costa Rica during February average around $0.

How far in advance should I book a flight from New Hampshire to Costa Rica?

You are more likely to see cheaper flights to Costa Rica from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $468 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from New Hampshire for as low as $394 on momondo.

Can stopping save me money on New Hampshire to Costa Rica flights?

You could potentially save up to 11% on your flight if you consider stops on a New Hampshire to Costa Rica flight.

Cheap New Hampshire to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New Hampshire to Costa Rica

Fastest flight time

5h 49m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Costa Rica

40 airports
The fastest flight from New Hampshire to Costa Rica takes 5h 49m
Direct flights go from New Hampshire to Costa Rica on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There are 40 airports in Costa Rica. From New Hampshire there are direct flights to Liberia (LIR).
Search flight deals

Frequently asked questions about flying from New Hampshire to Costa Rica

  • When did momondo last update prices for flights from New Hampshire to Costa Rica?

    Prices for flights from New Hampshire to Costa Rica refresh daily.

  • How many operators does momondo search for flights from New Hampshire to Costa Rica?

  • How old do you have to be to fly from New Hampshire to Costa Rica?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from New Hampshire to Costa Rica.

  • What documentation or ID do you need to fly to Costa Rica?

    The necessary travel and health documents for your Costa Rica 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.

Best airlines flying from New Hampshire to Costa Rica

Compare and see reviews for airlines that fly from New Hampshire to Costa Rica with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $416Free CancellationRating
7.1
11,924 reviews
Search American Airlines flights
SouthwestPriceFrom $569Free CancellationRating
8.0
4,218 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from New Hampshire to Costa Rica?

It is quick and easy to find New Hampshire to Costa Rica flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Costa Rica that suits you.

Can I find flights from New Hampshire to Costa Rica with flexible booking policies on momondo?

Yes. All flights to Costa Rica from New Hampshire on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from New Hampshire to Costa Rica?

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 Costa Rica from New Hampshire.

I’m not ready to book a flight from New Hampshire to Costa Rica right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Costa Rica, momondo offers a useful price alert feature which will track prices for flights to Costa Rica from New Hampshire and alert you when they change.

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