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Costa Rica

$291+ Cheap flights from Alaska 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — SJO
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap flight deals from Alaska to Costa Rica

Cheapest flights from Alaska to Costa Rica
Explore the most affordable flight options available from Alaska to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/16. 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.
Wed 4/221:22 pm
ANC
-
LIR
2 stops14h 58m
Alaska Airlines
Wed 4/2911:20 am
LIR
-
ANC
2 stops15h 22m
Alaska Airlines
Deal found 2/16$557
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:17 pm
ANC
-
SJO
2 stops29h 28m
Alaska Airlines
Sun 5/1012:55 am
SJO
-
ANC
2 stops36h 16m
Alaska Airlines
Deal found 2/15$579
This United Airlines deal was found by Cheapflights users on 2/16. 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 10/2411:40 pm
ANC
-
LIR
1 stop13h 28m
United Airlines
Sat 10/3111:50 am
LIR
-
ANC
1 stop12h 49m
United Airlines
Deal found 2/16$585
This American Airlines deal was found by Cheapflights users on 2/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:59 pm
ANC
-
SJO
1 stop18h 46m
American Airlines
Fri 11/66:22 am
SJO
-
ANC
1 stop15h 54m
American Airlines
Deal found 2/15$607
This American Airlines deal was found by Cheapflights users on 2/16. 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 4/228:30 pm
ANC
-
LIR
1 stop15h 10m
American Airlines
Wed 4/292:10 pm
LIR
-
ANC
1 stop30h 40m
American Airlines
Deal found 2/16$608
This United Airlines deal was found by Cheapflights users on 2/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/284:00 pm
ANC
-
LIR
2 stops20h 25m
United Airlines
Thu 8/63:27 pm
LIR
-
ANC
1 stop29h 33m
United Airlines
Deal found 2/15$609
This American Airlines deal was found by Cheapflights users on 2/16. 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 10/248:59 pm
ANC
-
SJO
1 stop18h 46m
American Airlines
Sat 10/317:35 am
SJO
-
ANC
1 stop12h 56m
American Airlines
Deal found 2/16$617
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:24 pm
ANC
-
SJO
2 stops26h 09m
Alaska Airlines
Sun 6/712:53 am
SJO
-
ANC
2 stops22h 02m
Alaska Airlines
Deal found 2/15$621
This Alaska Airlines deal was found by Cheapflights users on 2/16. 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.
Fri 10/2312:34 am
ANC
-
SJO
1 stop16h 56m
Alaska Airlines
Sat 10/317:00 am
SJO
-
ANC
1 stop19h 11m
Alaska Airlines
Deal found 2/16$627
This Alaska Airlines deal was found by Cheapflights users on 2/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:20 pm
ANC
-
SJO
2 stops51h 10m
Alaska Airlines
Thu 11/51:45 am
SJO
-
ANC
2 stops19h 57m
Alaska Airlines
Deal found 2/15$637
This Travelocity deal was found by Cheapflights users on 2/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:00 am
ANC
-
LIR
2 stops22h 22m
Alaska Airlines
Thu 8/69:00 am
LIR
-
ANC
2 stops16h 01m
Alaska Airlines
Deal found 2/15$686
This American Airlines deal was found by Cheapflights users on 2/17. 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.
Fri 5/158:30 pm
ANC
-
LIR
1 stop15h 10m
American Airlines
Sat 5/232:18 pm
LIR
-
ANC
1 stop32h 29m
American Airlines
Deal found 2/17$722

Find flight deals from Alaska to Costa Rica

Keep the following information in mind while searching for Alaska to Costa Rica flight deals. Data was last updated February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$557
(Alaska Airlines)

One-way from

$291
(United Airlines)

Popular in

July

Cheapest in

August

Average price

$791
Provider with most accurate pricing for Anchorage-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Anchorage-San José Juan Santamaria Intl flights.
Search Deals
From Alaska to Costa Rica
Search Deals
One-way flight from Alaska to Costa Rica
Search Deals
High demand for flights, 8% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Alaska 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 February 18, 2026.
Use the filters below to find and compare flights from Alaska to Costa Rica that are best for you.

Fly from

Alaska

Fly to

Costa Rica

Route

Depart

Return

Price

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Mon 4/27

7:00 am-6:20 am

2 stops21h 20m

Liberia

Tue 5/5

11:20 am-11:11 am

2 stops25h 51m

$557

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Wed 4/22

1:22 pm-6:20 am

2 stops14h 58m

Liberia

Wed 4/29

11:20 am-12:42 am

2 stops15h 22m

$557

AnchorageSan José

ANC - SJO

ANCSJO

Anchorage

Mon 5/4

4:17 pm-11:45 pm

2 stops29h 28m

San José Juan Santamaria Intl

Sun 5/10

12:55 am-11:11 am

2 stops36h 16m

$579

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Wed 4/22

8:30 pm-1:40 pm

1 stop15h 10m

Liberia

Wed 4/29

2:10 pm-6:50 pm

1 stop30h 40m

$608

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Mon 4/27

8:30 pm-1:40 pm

1 stop15h 10m

Liberia

Tue 5/5

2:10 pm-6:50 pm

1 stop30h 40m

$608

AnchorageSan José

ANC - SJO

ANCSJO

Anchorage

Mon 2/23

11:45 pm-8:39 pm

2 stops17h 54m

San José Juan Santamaria Intl

Thu 2/26

2:05 pm-7:46 pm

2 stops32h 41m

$710

AnchorageSan José

ANC - SJO

ANCSJO

Anchorage

Sun 2/22

11:45 pm-8:39 pm

2 stops17h 54m

San José Juan Santamaria Intl

Thu 2/26

2:05 pm-11:08 pm

2 stops36h 03m

$710

AnchorageSan José

ANC - SJO

ANCSJO

Anchorage

Mon 3/2

11:45 pm-8:39 pm

2 stops17h 54m

San José Juan Santamaria Intl

Mon 3/9

7:45 am-10:50 pm

2 stops17h 05m

$713

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Fri 5/15

8:30 pm-1:40 pm

1 stop15h 10m

Liberia

Sat 5/23

2:18 pm-8:47 pm

1 stop32h 29m

$722

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Fri 5/15

11:49 pm-12:10 pm

2 stops34h 21m

Liberia

Sat 5/23

1:20 pm-11:10 am

2 stops23h 50m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 20 results
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Best time to book a flight from Alaska to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Alaska 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 Alaska to Costa Rica

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

Currently, August is the cheapest month in which you can book a flight from Alaska to Costa Rica (average of $285). Flying from Alaska to Costa Rica in February is currently the most expensive (average of $728). 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.

Related info for your journey

Find useful and relevant information for your journey from Alaska 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 Alaska to Costa Rica?

    A quick flight from Alaska to Costa Rica can take about 15h 10m. Alaska Airlines provides one of the quickest options available for as low as $608. Alaska and Costa Rica are separated by a distance of 4734 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Alaska 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 Alaska to Costa Rica?

    Currently, August is the cheapest month in which you can book a flight from Alaska to Costa Rica (average of $285). Flying from Alaska to Costa Rica in February is currently the most expensive (average of $728). 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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Alternative routes for Alaska to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Alaska to Costa Rica

Discover the top 3 airlines that operate flights from Alaska 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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$275Average$694FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$460Average$722FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$544Average$658FlexibilityNo cancel feeOn-time71%

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