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$271+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — SJO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$484
(Alaska Airlines)

One-way from

$271
(American Airlines)

Popular in

April

Cheapest in

August

Average price

$637
From Alaska to Costa Rica
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One-way flight from Alaska to Costa Rica
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Highest demand for flights based on searches. 11% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2812:09 amANC - LIR
1 stop14h 51mAlaska Airlines
Thu 12/119:00 amLIR - ANC
1 stop18h 30mAlaska Airlines
Deal found 9/10$484
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:00 amANC - LIR
2 stops21h 20mAlaska Airlines
Thu 12/119:00 amLIR - ANC
2 stops17h 41mAlaska Airlines
Deal found 9/10$489
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2812:09 amANC - LIR
1 stop14h 51mAlaska Airlines
Fri 12/127:17 pmLIR - ANC
1 stop32h 13mAlaska Airlines
Deal found 9/10$503
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:09 amANC - LIR
1 stop27h 11mAlaska Airlines
Tue 12/99:00 amLIR - ANC
2 stops27h 52mAlaska Airlines
Deal found 9/10$508
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/237:52 pmANC - LIR
1 stop15h 07mAmerican Airlines
Sun 11/23:08 pmLIR - ANC
1 stop31h 07mAmerican Airlines
Deal found 9/10$512
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2812:09 amANC - LIR
1 stop14h 51mAlaska Airlines
Mon 12/87:17 pmLIR - ANC
2 stops25h 09mAlaska Airlines
Deal found 9/10$528
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2812:09 amANC - LIR
1 stop14h 51mAlaska Airlines
Sat 12/137:17 pmLIR - ANC
1 stop32h 13mAlaska Airlines
Deal found 9/10$543
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 11/1512:12 amANC - SJO
1 stop21h 26mAlaska Airlines
Sat 11/221:30 amSJO - ANC
1 stop26h 10mAlaska Airlines
Deal found 9/9$548
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:30 amANC - LIR
2 stops33h 10mDelta
Tue 12/92:05 pmLIR - ANC
2 stops25h 02mDelta
Deal found 9/10$548
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/2311:49 pmANC - LIR
2 stops34h 21mUnited Airlines
Sun 11/212:50 pmLIR - ANC
1 stop13h 06mUnited Airlines
Deal found 9/9$553
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/232:10 pmANC - LIR
2 stops19h 50mDelta
Sun 11/22:05 pmLIR - ANC
2 stops23h 14mDelta
Deal found 9/10$558
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 11/1412:12 amANC - SJO
1 stop21h 26mAlaska Airlines
Sat 11/221:30 amSJO - ANC
1 stop26h 10mAlaska Airlines
Deal found 9/9$568

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 September 11, 2025.
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

Fri 11/28

12:09 am-6:00 pm

1 stop14h 51m

Liberia

Thu 12/11

9:00 am-9:52 am

2 stops27h 52m

$489

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Thu 11/27

1:59 am-6:20 am

2 stops25h 21m

Liberia

Tue 12/9

9:00 am-11:41 pm

2 stops17h 41m

$489

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Fri 11/28

6:00 am-6:20 am

2 stops21h 20m

Liberia

Wed 12/10

7:17 pm-9:41 pm

2 stops29h 24m

$489

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Thu 11/27

12:09 am-6:20 am

1 stop27h 11m

Liberia

Thu 12/11

9:00 am-12:30 am

1 stop18h 30m

$504

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Thu 11/27

12:55 am-6:20 am

2 stops26h 25m

Liberia

Fri 12/12

7:17 pm-12:30 am

1 stop32h 13m

$508

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Thu 10/23

7:52 pm-12:59 pm

1 stop15h 07m

Liberia

Sun 11/2

3:08 pm-7:15 pm

1 stop31h 07m

$512

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Fri 11/28

6:00 am-6:20 am

2 stops21h 20m

Liberia

Sat 12/13

7:17 pm-1:25 pm

2 stops21h 08m

$528

AnchorageSan José

ANC - SJO

ANCSJO

Anchorage

Sun 11/16

5:00 am-12:38 am

2 stops16h 38m

San José Juan Santamaria Intl

Sat 11/22

1:30 am-12:40 am

1 stop26h 10m

$552

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Thu 10/23

11:49 pm-12:10 pm

2 stops34h 21m

Liberia

Sun 11/2

12:50 pm-10:56 pm

1 stop13h 06m

$553

AnchorageLiberia

ANC - LIR

ANCLIR

Anchorage

Thu 10/23

2:10 pm-12:00 pm

2 stops19h 50m

Liberia

Sun 11/2

2:05 pm-10:19 am

2 stops23h 14m

$558

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 24 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, September is the cheapest month in which you can book a flight from Alaska to Costa Rica (average of $398). Flying from Alaska to Costa Rica in March is currently the most expensive (average of $555). 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 AK to CR?

Find hourly flight availability from Alaska 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 September 11, 2025.

When flying from Alaska to Costa Rica, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 14h 51m. Alaska Airlines provides one of the quickest options available for as low as $489. 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.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $271. United Airlines flights start at $317 while deals on Alaska Airlines start at $446 one-way.

  • 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, September is the cheapest month in which you can book a flight from Alaska to Costa Rica (average of $398). Flying from Alaska to Costa Rica in March is currently the most expensive (average of $555). 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 4 airlines flying from Alaska to Costa Rica

Discover the top 4 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$460Average$712FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$510Average$725FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$544Average$870FlexibilityNo cancel feeOn-time71%
DeltaCheapest$554Average$639FlexibilityNo cancel feeOn-timeN/A

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