Costa Rica

$153+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SJO
Jul 15 — Jul 221
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Cheap 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 June 15, 2026.

This American Airlines deal was found by Cheapflights users on 6/11. 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 8/2410:20 pm
PHX
-
LIR
1 stop12h 07m
American Airlines
Thu 9/32:45 pm
LIR
-
PHX
2 stops16h 48m
American Airlines
Deal found 6/11$422
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/410:00 pm
PHX
-
LIR
1 stop14h 15m
American Airlines
Fri 7/102:15 pm
LIR
-
PHX
1 stop17h 35m
American Airlines
Deal found 6/10$436
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Sat 7/46:00 am
PHX
-
LIR
1 stop8h 19m
United Airlines
Wed 7/83:27 pm
LIR
-
PHX
2 stops18h 33m
United Airlines
Deal found 6/13$441
This American Airlines deal was found by Cheapflights users on 6/14. 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 9/97:00 pm
PHX
-
LIR
2 stops17h 18m
American Airlines
Mon 9/142:18 pm
LIR
-
PHX
2 stops19h 52m
American Airlines
Deal found 6/14$446
This BusinessClass deal was found by Cheapflights users on 6/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:00 am
PHX
-
SJO
1 stop7h 52m
GOL
Fri 9/182:57 pm
SJO
-
PHX
2 stops19h 18m
GOL
Deal found 6/10$448
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 7/34:24 pm
PHX
-
LIR
1 stop19h 51m
American Airlines
Fri 7/103:40 pm
LIR
-
PHX
1 stop16h 10m
American Airlines
Deal found 6/12$449
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 9/78:30 am
PHX
-
SJO
1 stop10h 07m
United Airlines
Fri 9/188:45 am
SJO
-
PHX
1 stop13h 23m
United Airlines
Deal found 6/10$450
This American Airlines deal was found by Cheapflights users on 6/10. 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 8/198:45 am
PHX
-
SJO
1 stop10h 08m
American Airlines
Thu 8/276:00 am
SJO
-
PHX
1 stop14h 36m
American Airlines
Deal found 6/10$451
This United Airlines deal was found by Cheapflights users on 6/14. 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 10/146:52 pm
PHX
-
LIR
1 stop16h 18m
United Airlines
Wed 10/211:20 pm
LIR
-
PHX
1 stop8h 40m
United Airlines
Deal found 6/14$452
This United Airlines deal was found by Cheapflights users on 6/12. 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 11/37:00 am
PHX
-
LIR
1 stop10h 37m
United Airlines
Fri 11/138:35 am
LIR
-
PHX
1 stop8h 46m
United Airlines
Deal found 6/12$458
This Avianca deal was found by Cheapflights users on 6/15. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:20 pm
PHX
-
SJO
2 stops18h 10m
Multiple Airlines
Wed 9/304:35 pm
SJO
-
PHX
2 stops20h 50m
Multiple Airlines
Deal found 6/15$459
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Sat 7/114:25 pm
PHX
-
LIR
2 stops16h 25m
United Airlines
Fri 7/171:20 pm
LIR
-
PHX
1 stop8h 22m
United Airlines
Deal found 6/13$463

Find 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 June 15, 2026.

Round-trip from

$422
(American Airlines)

One-way from

$153
(Southwest)

Popular in

December

Cheapest in

October

Average price

$583
From Phoenix to Costa Rica
One-way flight from Phoenix to Costa Rica
Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 15, 2026.
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

Cheapest round-trip

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Wed 9/9

8:30 am-7:37 pm

1 stop10h 07m

San José Juan Santamaria Intl

Sun 9/13

8:45 am-9:08 pm

1 stop13h 23m

$474

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Wed 10/7

7:37 pm-7:15 am

1 stop10h 38m

San José Juan Santamaria Intl

Sat 10/17

1:25 pm-9:00 pm

1 stop8h 35m

$474

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Wed 10/7

3:35 pm-6:00 am

2 stops13h 25m

San José Juan Santamaria Intl

Sat 10/17

12:15 pm-7:00 am

2 stops19h 45m

$490

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Fri 9/4

8:10 am-6:40 pm

2 stops9h 30m

San José Juan Santamaria Intl

Thu 9/10

1:40 pm-9:30 pm

1 stop8h 50m

$492

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Thu 7/2

6:47 pm-9:50 am

1 stop14h 03m

Liberia

Fri 7/10

11:10 am-8:42 pm

1 stop10h 32m

$526
Quickest round-trip

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Fri 7/3

6:10 am-2:25 pm

1 stop7h 15m

Liberia

Sun 7/12

3:27 pm-10:44 pm

1 stop8h 17m

$526

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Sat 7/11

7:30 pm-9:50 am

2 stops13h 20m

Liberia

Fri 7/17

11:10 am-9:59 pm

2 stops11h 49m

$548

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Tue 11/17

11:10 pm-12:09 pm

2 stops11h 59m

San José Juan Santamaria Intl

Tue 12/1

6:22 am-2:18 pm

1 stop8h 56m

$561

PhoenixLiberia

PHX - LIR

PHXLIR

Phoenix Sky Harbor Intl

Sun 8/23

6:55 pm-12:10 pm

2 stops16h 15m

Liberia

Sat 8/29

1:20 pm-10:22 am

1 stop22h 02m

$574

PhoenixSan José

PHX - SJO

PHXSJO

Phoenix Sky Harbor Intl

Mon 11/2

2:30 pm-11:25 am

2 stops19h 55m

San José Juan Santamaria Intl

Fri 11/6

8:45 am-8:31 pm

1 stop12h 46m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 35 resultsSorted by cheapest first
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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, December is the cheapest month in which you can book a flight from Phoenix to Costa Rica (average of $131). Flying from Phoenix to Costa Rica in May is currently the most expensive (average of $346). 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.

How far ahead should I book a flight from Phoenix to Costa Rica?

The price you pay for your flight from Phoenix to Costa Rica may vary depending on when you book. For the best chance of a lower fare, look to book 22 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 June 15, 2026.
See what other customers who have flown with Southwest,United Airlines, andGOL 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.

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Comfort

8.0

Crew

8.6

Overall

7.9

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

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 $474, United Airlines can have you in Costa Rica from Phoenix in 10h 07m. The distance between Phoenix and Costa Rica is about 2392 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Phoenix to Costa Rica one-way?

    $112 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $146 and $150, respectively.

  • 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, December is the cheapest month in which you can book a flight from Phoenix to Costa Rica (average of $131). Flying from Phoenix to Costa Rica in May is currently the most expensive (average of $346). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Phoenix to Costa Rica

Discover the top 6 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 June 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$250Average$458FlexibilityNo cancel feeOn-time62%
DeltaCheapest$325Average$581FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$333Average$563FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$341Average$548FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$354Average$617FlexibilityNo cancel feeOn-time63%
GOLCheapest$406Average$592FlexibilityNo cancel feeOn-time74%

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