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Cheap flights from Phoenix to Costa Rica from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix to Costa Rica departing on 8/12. 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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Cheap round-trip flights

American Airlines Logo
11:17 pm - 11:49 amPHX-LIR
11h 32m2 stops
American Airlines Logo
12:49 pm - 6:34 amLIR-PHX
18h 45m2 stops
$319American Airlines
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Mon, Sep 22 - Wed, Oct 1
American Airlines Logo
11:40 pm - 11:49 amPHX-LIR
11h 09m1 stop
American Airlines Logo
12:49 pm - 9:37 amLIR-PHX
21h 48m1 stop
$324American Airlines
Find Deal
Mon, Sep 22 - Wed, Oct 1
Delta Logo
11:59 pm - 12:00 pmPHX-LIR
11h 01m1 stop
Delta Logo
1:25 pm - 10:12 pmLIR-PHX
9h 47m1 stop
$325Delta
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Mon, Sep 8 - Tue, Sep 16
United Airlines Logo
8:25 am - 10:39 pmPHX-SJO
13h 14m1 stop
United Airlines Logo
1:30 pm - 9:02 pmSJO-PHX
8h 32m1 stop
$334United Airlines
Find Deal
Thu, Aug 14 - Thu, Sep 4
United Airlines Logo
4:10 pm - 12:10 pmPHX-LIR
19h 00m2 stops
United Airlines Logo
1:20 pm - 9:02 pmLIR-PHX
8h 42m1 stop
$335United Airlines
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Thu, Sep 11 - Wed, Sep 17
Delta Logo
11:44 pm - 12:00 pmPHX-LIR
11h 16m1 stop
Delta Logo
1:25 pm - 10:12 pmLIR-PHX
9h 47m1 stop
$340Delta
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Fri, Sep 12 - Wed, Sep 17
Spirit Airlines Logo
12:01 pm - 11:14 amPHX-SJO
22h 13m1 stop
Spirit Airlines Logo
12:19 pm - 10:56 amSJO-PHX
23h 37m1 stop
$368Spirit Airlines
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Fri, Sep 5 - Sat, Sep 13
Southwest Logo
10:55 pm - 12:45 pmPHX-SJO
12h 50m1 stop
Southwest Logo
8:45 am - 11:20 pmSJO-PHX
15h 35m1 stop
$370Southwest
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Tue, Aug 12 - Sun, Aug 17
Spirit Airlines Logo
10:42 pm - 11:12 amPHX-SJO
35h 30m3 stops
Spirit Airlines Logo
12:19 pm - 12:23 pmSJO-PHX
25h 04m2 stops
$372Spirit Airlines
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Mon, Aug 25 - Sat, Sep 6
Southwest Logo
11:00 am - 8:30 pmPHX-SJO
8h 30m1 stop
Southwest Logo
9:00 am - 10:25 pmSJO-PHX
14h 25m2 stops
$398Southwest
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Thu, Dec 4 - Tue, Dec 9

United Airlines flights from Phoenix to Costa Rica

Our best United Airlines deals on Phoenix to Costa Rica flight tickets
United Airlines
Aug 14
PHX12:09 pmPhoenix Sky Harbor Intl
9h 30m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Aug 17
SJO5:30 amSan José Juan Santamaria Intl
12h 37m
1 stop
PHX5:07 pmPhoenix Sky Harbor Intl
$334
Find similar
United Airlines
Sep 11
PHX4:10 pmPhoenix Sky Harbor Intl
19h 00m
2 stops
LIR12:10 pmLiberia
Sep 17
LIR1:20 pmLiberia
8h 42m
1 stop
PHX9:02 pmPhoenix Sky Harbor Intl
$335
Find similar
United Airlines
Aug 14
PHX12:09 pmPhoenix Sky Harbor Intl
9h 30m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Sep 4
SJO7:55 amSan José Juan Santamaria Intl
13h 59m
2 stops
PHX8:54 pmPhoenix Sky Harbor Intl
$338
Find similar

Spirit Airlines flights from Phoenix to Costa Rica

Our best Spirit Airlines deals on Phoenix to Costa Rica flight tickets
Spirit Airlines
Sep 5
PHX12:01 pmPhoenix Sky Harbor Intl
22h 13m
1 stop
SJO11:14 amSan José Juan Santamaria Intl
Sep 13
SJO12:19 pmSan José Juan Santamaria Intl
23h 37m
1 stop
PHX10:56 amPhoenix Sky Harbor Intl
$368
Find similar
Spirit Airlines
Aug 25
PHX10:42 pmPhoenix Sky Harbor Intl
35h 30m
3 stops
SJO11:12 amSan José Juan Santamaria Intl
Sep 6
SJO12:19 pmSan José Juan Santamaria Intl
25h 04m
2 stops
PHX12:23 pmPhoenix Sky Harbor Intl
$372
Find similar
Spirit Airlines
Sep 5
PHX1:27 pmPhoenix Sky Harbor Intl
20h 47m
2 stops
SJO11:14 amSan José Juan Santamaria Intl
Sep 13
SJO12:19 pmSan José Juan Santamaria Intl
25h 04m
2 stops
PHX12:23 pmPhoenix Sky Harbor Intl
$379
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momondo Fare Finder

 
Customize your flight search to find flights from Phoenix 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 2, 2025.
Use the filters below to find and compare flights from Phoenix to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Mon 9/22

11:17 pm-11:49 am

2 stops11h 32m

Liberia

Wed 10/1

12:49 pm-6:34 am

2 stops18h 45m

$319

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Mon 9/22

11:40 pm-11:49 am

1 stop11h 09m

Liberia

Wed 10/1

12:49 pm-9:37 am

1 stop21h 48m

$324

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Mon 9/8

11:59 pm-12:00 pm

1 stop11h 01m

Liberia

Tue 9/16

1:25 pm-10:12 pm

1 stop9h 47m

$325

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Thu 8/14

8:25 am-10:39 pm

1 stop13h 14m

San José Juan Santamaria Intl

Thu 9/4

1:30 pm-9:02 pm

1 stop8h 32m

$334

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Thu 9/11

4:10 pm-12:10 pm

2 stops19h 00m

Liberia

Wed 9/17

1:20 pm-9:02 pm

1 stop8h 42m

$335

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Fri 9/12

11:44 pm-12:00 pm

1 stop11h 16m

Liberia

Wed 9/17

1:25 pm-10:12 pm

1 stop9h 47m

$340

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Fri 9/5

12:01 pm-11:14 am

1 stop22h 13m

San José Juan Santamaria Intl

Sat 9/13

12:19 pm-10:56 am

1 stop23h 37m

$368

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Tue 8/12

10:55 pm-12:45 pm

1 stop12h 50m

San José Juan Santamaria Intl

Sun 8/17

8:45 am-11:20 pm

1 stop15h 35m

$370

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Mon 8/25

10:42 pm-11:12 am

3 stops35h 30m

San José Juan Santamaria Intl

Sat 9/6

12:19 pm-12:23 pm

2 stops25h 04m

$372

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Thu 12/4

11:00 am-8:30 pm

1 stop8h 30m

San José Juan Santamaria Intl

Tue 12/9

9:00 am-10:25 pm

2 stops14h 25m

$398

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 Phoenix 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 Phoenix is in August. Flight prices, which tend to average around $469, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in August, then May is your next best option. Flight prices from Phoenix to Costa Rica during May average around $478.

What is the cheapest day to depart on your flight to Costa Rica?

According to our data, Tuesday is the cheapest day to fly to Costa Rica from Phoenix. The lowest ticket price found for a Tuesday departure recently was $539. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $665. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

What is the cheapest time of day to depart on your flight to Costa Rica?

In the afternoon is the cheapest time of day to fly from Phoenix to Costa Rica when you can find flight prices for as low as $547. Flying to Costa Rica in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $631. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Costa Rica from Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $582 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Phoenix for as low as $491 on momondo.

Cheap Phoenix to Costa Rica flight deals and tips

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

Best Price Found

$138

Fastest flight time

7h 52m

Direct flights

None

Airports in Costa Rica

2 airports
The best one-way flight to Costa Rica from Phoenix in the past 72 hours is $138. The best round-trip flight deal from Phoenix to Costa Rica found on momondo in the last 72 hours is $319.
The fastest flight from Phoenix to Costa Rica takes 7h 52m
There are no direct flights from Phoenix to Costa Rica. Popular non-direct routes for this connection are Phoenix Sky Harbor Intl Airport - San José Juan Santamaria Intl Airport and Phoenix Sky Harbor Intl Airport - Liberia Airport.
There are 2 airports near Costa Rica: Liberia (LIR), San José Juan Santamaria Intl (SJO)
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  • When did momondo last update prices for flights from Phoenix to Costa Rica?

    Prices for flights from Phoenix to Costa Rica were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Phoenix to Costa Rica.

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

    The required travel and health documents for your Costa Rica trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Costa Rica. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Phoenix to Costa Rica

Compare and see reviews for airlines that fly from Phoenix to Costa Rica with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $325Free CancellationRating
8.0
7,983 reviews
Search Delta flights
Spirit AirlinesPriceFrom $344Free CancellationRating
6.3
8,054 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $385Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $390Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $402Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights
JetBluePriceFrom $436Free CancellationRating
7.2
2,915 reviews
Search JetBlue flights
Copa AirlinesPriceFrom $620Free CancellationRating
7.5
1,493 reviews
Search Copa Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Costa Rica from Phoenix.

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

Flights from Phoenix to Costa Rica with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Phoenix to Costa Rica.

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

Yes. momondo can track prices for Phoenix to Costa Rica flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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