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$123+ Cheap flights from Phoenix to Costa Rica

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SJO
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Cheap flight deals from Phoenix to Costa Rica

Keep the following information in mind while searching for Phoenix to Costa Rica flight deals. Data was last updated November 19, 2025.

Round-trip from

$334
(American Airlines)

One-way from

$123
(CheapOair)

Popular in

December

Cheapest in

August

Average price

$483
From Phoenix to Costa Rica
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One-way flight from Phoenix to Costa Rica
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Highest demand for flights based on searches. 7% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Phoenix to Costa Rica

Cheapest flights from Phoenix to Costa Rica
Explore the most affordable flight options available from Phoenix to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 19, 2025.

This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:18 pmPHX - SJO
1 stop13h 14mUnited Airlines
Tue 12/99:40 amSJO - PHX
1 stop11h 07mUnited Airlines
Deal found 11/18$334
This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:30 amPHX - SJO
1 stop15h 58mAmerican Airlines
Mon 12/157:00 amSJO - PHX
1 stop18h 59mAmerican Airlines
Deal found 11/18$358
This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:30 pmPHX - LIR
2 stops16h 40mUnited Airlines
Thu 12/188:35 amLIR - PHX
1 stop8h 56mUnited Airlines
Deal found 11/18$365
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:00 amPHX - SJO
1 stop12h 39mUnited Airlines
Thu 12/112:20 pmSJO - PHX
2 stops11h 55mUnited Airlines
Deal found 11/17$365
This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:33 amPHX - LIR
2 stops12h 47mAmerican Airlines
Sat 12/131:12 pmLIR - PHX
1 stop10h 28mAmerican Airlines
Deal found 11/18$369
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:00 amPHX - SJO
1 stop15h 07mDelta
Thu 12/117:00 amSJO - PHX
1 stop16h 49mDelta
Deal found 11/19$369
This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:30 amPHX - LIR
1 stop10h 49mAmerican Airlines
Wed 12/241:16 pmLIR - PHX
1 stop20h 25mAmerican Airlines
Deal found 11/18$373
This American Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:54 amPHX - SJO
2 stops10h 23mAmerican Airlines
Thu 12/117:00 amSJO - PHX
1 stop18h 59mAmerican Airlines
Deal found 11/17$373
This Expedia deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:30 pmPHX - SJO
1 stop8h 22mJetBlue
Sat 12/1310:00 amSJO - PHX
1 stop13h 40mJetBlue
Deal found 11/18$376
This Alaska Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:23 pmPHX - LIR
2 stops25h 44mAlaska Airlines
Sat 12/136:23 pmLIR - PHX
2 stops25h 51mAlaska Airlines
Deal found 11/18$382
This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/307:59 pmPHX - LIR
2 stops16h 11mUnited Airlines
Sat 12/202:20 pmLIR - PHX
1 stop8h 54mUnited Airlines
Deal found 11/18$395
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:35 amPHX - LIR
2 stops11h 02mUnited Airlines
Thu 12/188:35 amLIR - PHX
1 stop8h 56mUnited Airlines
Deal found 11/17$396

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated November 19, 2025.
Use the filters below to find and compare flights from Phoenix to Costa Rica that are best for you.

Fly from

Phoenix

Fly to

Costa Rica

Route

Depart

Return

Price

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Tue 12/2

6:18 pm-8:32 am

1 stop13h 14m

San José Juan Santamaria Intl

Tue 12/9

9:40 am-7:47 pm

1 stop11h 07m

$334

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Mon 12/15

7:00 am-4:08 pm

1 stop8h 08m

Liberia

Mon 12/22

2:20 pm-10:14 pm

1 stop8h 54m

$365

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Fri 12/5

7:30 pm-1:10 pm

2 stops16h 40m

Liberia

Thu 12/18

8:35 am-4:31 pm

1 stop8h 56m

$365

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Tue 12/16

7:00 am-6:37 pm

1 stop10h 37m

Liberia

Tue 12/23

8:35 am-10:14 pm

1 stop14h 39m

$365

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Fri 12/5

7:30 pm-1:10 pm

2 stops16h 40m

Liberia

Tue 12/23

2:20 pm-10:14 pm

1 stop8h 54m

$365

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Sun 12/7

7:00 am-8:39 pm

1 stop12h 39m

San José Juan Santamaria Intl

Thu 12/11

2:20 pm-1:15 am

2 stops11h 55m

$365

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Tue 12/9

11:05 pm-12:25 pm

2 stops12h 20m

Liberia

Sat 12/13

1:12 pm-9:15 pm

1 stop9h 03m

$369

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Tue 12/9

3:23 pm-6:07 pm

2 stops25h 44m

Liberia

Sat 12/13

6:23 pm-3:13 pm

2 stops21h 50m

$382

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Wed 4/15

11:26 am-9:55 pm

1 stop9h 29m

San José Juan Santamaria Intl

Thu 4/23

11:59 pm-3:03 pm

1 stop16h 04m

$383

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Tue 1/6

4:13 pm-12:50 pm

1 stop19h 37m

Liberia

Wed 1/14

2:05 pm-11:40 pm

1 stop10h 35m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Showing 1-10 of 32 results
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Best time to book a flight from Phoenix to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Phoenix with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Costa Rica

What is the cheapest month to book a flight from Phoenix to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from Phoenix to Costa Rica (average of $303). Flying from Phoenix to Costa Rica in December is currently the most expensive (average of $427). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to CR?

Find hourly flight availability from Phoenix to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 19, 2025.

A simple way to save on the total cost of your ticket is to fly from Phoenix to Costa Rica in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Phoenix to Costa Rica?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to Costa Rica. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix to Costa Rica flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated November 19, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Phoenix to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,249 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,004 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,023 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,046 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Phoenix to Costa Rica?

    For as low as $383, United Airlines can have you in Costa Rica from Phoenix in 9h 29m. The distance between Phoenix and Costa Rica is about 2392 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Phoenix to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Phoenix to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Costa Rica.

  • Can I find deals for business class flights from Phoenix to Costa Rica?

    Yes. Cheapflights offers flight deals from Phoenix to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Phoenix to Costa Rica (average of $303). Flying from Phoenix to Costa Rica in December is currently the most expensive (average of $427). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Phoenix to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Phoenix to Costa Rica

Discover the top 4 airlines that operate flights from Phoenix to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$310Average$644FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$353Average$629FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$354Average$626FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$362Average$632FlexibilityNo cancel feeOn-time71%

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