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$387+ Cheap flights from Alaska to Puerto Rico

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — SJU
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap flight deals from Alaska to Puerto Rico

Cheapest flights from Alaska to Puerto Rico
Explore the most affordable flight options available from Alaska to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2026.

This Southwest deal was found by Cheapflights users on 3/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:15 pm
ANC
-
SJU
2 stops18h 45m
Southwest
Tue 9/16:00 am
SJU
-
ANC
2 stops20h 05m
Southwest
Deal found 3/12$775
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Mon 5/48:45 pm
ANC
-
SJU
1 stop19h 49m
United Airlines
Thu 5/77:40 am
SJU
-
ANC
1 stop16h 26m
United Airlines
Deal found 3/12$806
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:15 pm
ANC
-
SJU
2 stops14h 41m
Delta
Wed 9/27:30 am
SJU
-
ANC
2 stops22h 05m
Delta
Deal found 3/11$815
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Sat 4/2511:47 pm
ANC
-
SJU
1 stop13h 51m
United Airlines
Mon 5/47:20 am
SJU
-
ANC
2 stops16h 46m
United Airlines
Deal found 3/10$835
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:15 pm
ANC
-
SJU
2 stops17h 57m
Delta
Thu 9/37:30 am
SJU
-
ANC
1 stop15h 55m
Delta
Deal found 3/11$845
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Mon 4/208:50 pm
ANC
-
SJU
1 stop13h 54m
United Airlines
Tue 5/57:40 am
SJU
-
ANC
1 stop13h 21m
United Airlines
Deal found 3/12$846
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:30 pm
ANC
-
SJU
1 stop11h 26m
Delta
Tue 9/11:06 pm
SJU
-
ANC
2 stops16h 29m
Delta
Deal found 3/11$855
This Delta deal was found by Cheapflights users on 3/10. 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.
Fri 9/42:40 pm
FAI
-
SJU
2 stops20h 32m
Delta
Mon 9/147:00 am
SJU
-
FAI
2 stops21h 06m
Delta
Deal found 3/10$856
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/118:30 pm
ANC
-
SJU
1 stop16h 08m
Delta
Sun 6/147:30 am
SJU
-
ANC
1 stop16h 00m
Delta
Deal found 3/11$875
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 7/21:20 am
FAI
-
SJU
1 stop12h 18m
United Airlines
Fri 7/101:40 pm
SJU
-
FAI
1 stop13h 19m
United Airlines
Deal found 3/10$879
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Sat 4/1811:47 pm
ANC
-
SJU
2 stops34h 57m
United Airlines
Sat 5/21:00 am
SJU
-
ANC
2 stops20h 01m
United Airlines
Deal found 3/12$882
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:15 pm
ANC
-
SJU
2 stops17h 57m
Delta
Fri 9/47:30 am
SJU
-
ANC
1 stop15h 55m
Delta
Deal found 3/11$885

Find flight deals from Alaska to Puerto Rico

Keep the following information in mind while searching for Alaska to Puerto Rico flight deals. Data was last updated March 14, 2026.

Round-trip from

$775
(Southwest)

One-way from

$387
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$832
From Alaska to Puerto Rico
Search Deals
One-way flight from Alaska to Puerto Rico
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($91 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Alaska to Puerto Rico 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 March 14, 2026.
Use the filters below to find and compare flights from Alaska to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Mon 5/4

8:45 pm-11:50 pm

2 stops23h 05m

San Juan Luis Munoz Marin Intl

Thu 5/7

7:40 am-8:06 pm

1 stop16h 26m

$806

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Tue 5/19

5:20 pm-1:11 pm

2 stops15h 51m

San Juan Luis Munoz Marin Intl

Fri 6/12

2:35 pm-1:35 am

2 stops15h 00m

$815

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Sat 4/18

8:50 pm-8:34 pm

1 stop19h 44m

San Juan Luis Munoz Marin Intl

Sat 5/2

1:00 am-5:01 pm

2 stops20h 01m

$855

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Fri 9/4

10:05 pm-3:12 pm

1 stop13h 07m

San Juan Luis Munoz Marin Intl

Mon 9/14

7:30 am-12:06 am

2 stops20h 36m

$856

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Sun 5/3

5:30 am-4:32 am

2 stops19h 02m

San Juan Luis Munoz Marin Intl

Tue 5/12

7:25 am-1:42 am

2 stops22h 17m

$916

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Mon 4/13

1:20 am-11:02 pm

2 stops17h 42m

San Juan Luis Munoz Marin Intl

Tue 4/21

6:45 am-10:35 pm

2 stops19h 50m

$936

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Wed 4/15

8:50 pm-9:24 pm

2 stops20h 34m

San Juan Luis Munoz Marin Intl

Mon 4/20

3:56 pm-10:45 pm

2 stops34h 49m

$956

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Sat 9/5

1:15 am-11:50 pm

2 stops18h 35m

San Juan Luis Munoz Marin Intl

Tue 9/8

1:00 am-10:49 pm

2 stops25h 49m

$1,037

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Tue 5/5

8:55 pm-2:44 pm

1 stop13h 49m

San Juan Luis Munoz Marin Intl

Mon 5/11

1:00 am-7:42 pm

2 stops22h 42m

$1,056
Quickest round-trip

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Fri 6/12

8:55 pm-2:44 pm

1 stop13h 49m

San Juan Luis Munoz Marin Intl

Sun 6/28

1:40 pm-10:59 pm

1 stop13h 19m

$1,076

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Alaska to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico

What is the cheapest month to book a flight from Alaska to Puerto Rico?

Currently, February is the cheapest month in which you can book a flight from Alaska to Puerto Rico (average of $370). Flying from Alaska to Puerto Rico in January is currently the most expensive (average of $1,006). 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 Puerto Rico. 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 Puerto Rico?

    There are many flights that can get you from Alaska to Puerto Rico in 13h 07m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. The distance between Alaska and Puerto Rico is about 4827 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Alaska to Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from Alaska to Puerto Rico?

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

  • Can I find deals for business class flights from Alaska to Puerto Rico?

    Yes. Cheapflights offers flight deals from Alaska to Puerto Rico 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 Puerto Rico?

    Currently, February is the cheapest month in which you can book a flight from Alaska to Puerto Rico (average of $370). Flying from Alaska to Puerto Rico in January is currently the most expensive (average of $1,006). 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 Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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LaGuardia to Santo Domingo flights
LaGuardia to Santiago de los Caballeros flights
Newark to Simpson Bay flights
LaGuardia to Nassau flights
John F Kennedy Intl to Port of Spain flights
Miami to Luis Munoz Marin Intl flights
John F Kennedy Intl to Bridgetown flights
Boston to Oranjestad flights
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Baltimore to Punta Cana flights
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Top 3 airlines flying from Alaska to Puerto Rico

Discover the top 3 airlines that operate flights from Alaska to Puerto Rico. 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 March 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$432Average$824FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$448Average$844FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$794Average$904FlexibilityNo cancel feeOn-time71%

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