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Puerto Rico

$403+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — SJU
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
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 January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:45 pm
ANC
-
SJU
1 stop13h 40m
United Airlines
Fri 11/137:45 am
SJU
-
ANC
2 stops19h 54m
United Airlines
Deal found 1/19$765
This United Airlines deal was found by Cheapflights users on 1/20. 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 5/48:55 pm
FAI
-
SJU
2 stops20h 29m
United Airlines
Wed 5/64:55 pm
SJU
-
FAI
2 stops30h 47m
United Airlines
Deal found 1/20$785
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:52 pm
ANC
-
SJU
2 stops16h 08m
United Airlines
Mon 3/237:05 am
SJU
-
ANC
2 stops16h 56m
United Airlines
Deal found 1/19$790
This United Airlines deal was found by Cheapflights users on 1/20. 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 5/411:49 pm
ANC
-
SJU
2 stops17h 35m
United Airlines
Wed 5/61:40 pm
SJU
-
ANC
1 stop13h 05m
United Airlines
Deal found 1/20$839
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1712:29 am
ANC
-
SJU
2 stops16h 05m
American Airlines
Mon 3/237:40 am
SJU
-
ANC
2 stops19h 55m
American Airlines
Deal found 1/19$845
This Delta deal was found by Cheapflights users on 1/21. 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.
Sat 4/189:15 pm
ANC
-
SJU
2 stops18h 51m
Delta
Sun 5/36:15 am
SJU
-
ANC
2 stops18h 22m
Delta
Deal found 1/21$850
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1011:45 pm
ANC
-
SJU
2 stops16h 41m
United Airlines
Fri 2/202:25 pm
SJU
-
ANC
1 stop13h 43m
United Airlines
Deal found 1/19$855
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/1611:52 pm
ANC
-
SJU
1 stop13h 33m
United Airlines
Tue 3/247:05 am
SJU
-
ANC
2 stops16h 56m
United Airlines
Deal found 1/20$858
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:29 am
ANC
-
SJU
2 stops18h 32m
American Airlines
Sun 5/311:59 pm
SJU
-
ANC
1 stop22h 51m
American Airlines
Deal found 1/19$870
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/111:45 pm
ANC
-
SJU
1 stop13h 40m
United Airlines
Thu 3/52:25 pm
SJU
-
ANC
1 stop13h 25m
United Airlines
Deal found 1/21$885
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/111:45 pm
ANC
-
SJU
1 stop13h 40m
United Airlines
Tue 3/107:30 am
SJU
-
ANC
1 stop16h 31m
United Airlines
Deal found 1/20$893
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/198:00 am
FAI
-
SJU
2 stops16h 24m
American Airlines
Thu 2/268:40 am
SJU
-
FAI
2 stops22h 58m
American Airlines
Deal found 1/20$996

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 January 21, 2026.

Round-trip from

$765
(Delta)

One-way from

$403
(United Airlines)

Popular in

March

Cheapest in

August
From Alaska to Puerto Rico
Search Deals
One-way flight from Alaska to Puerto Rico
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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 January 21, 2026.
Use the filters below to find and compare flights from Alaska to Puerto Rico that are best for you.

Fly from

Alaska

Fly to

Puerto Rico

Route

Depart

Return

Price

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Mon 4/20

11:47 pm-8:38 pm

2 stops16h 51m

San Juan Luis Munoz Marin Intl

Mon 5/4

7:20 am-8:06 pm

2 stops16h 46m

$765

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Sun 3/1

9:15 pm-3:18 pm

1 stop13h 03m

San Juan Luis Munoz Marin Intl

Tue 3/10

7:30 am-12:28 am

2 stops20h 58m

$765

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Mon 5/4

8:55 pm-9:24 pm

2 stops20h 29m

San Juan Luis Munoz Marin Intl

Wed 5/6

4:55 pm-7:42 pm

2 stops30h 47m

$785

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Wed 3/18

9:10 pm-2:40 pm

1 stop13h 30m

San Juan Luis Munoz Marin Intl

Mon 3/23

7:05 am-8:01 pm

2 stops16h 56m

$790

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Mon 5/4

11:49 pm-9:24 pm

2 stops17h 35m

San Juan Luis Munoz Marin Intl

Wed 5/6

1:40 pm-10:45 pm

1 stop13h 05m

$839

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Wed 3/18

8:13 pm-10:31 pm

1 stop22h 18m

San Juan Luis Munoz Marin Intl

Mon 3/23

7:40 am-11:35 pm

2 stops19h 55m

$845

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Sat 4/18

9:15 pm-8:06 pm

2 stops18h 51m

San Juan Luis Munoz Marin Intl

Sun 5/3

6:15 am-8:37 pm

2 stops18h 22m

$850

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Wed 2/4

2:15 am-9:39 pm

2 stops14h 24m

San Juan Luis Munoz Marin Intl

Mon 2/9

7:07 am-7:30 pm

2 stops17h 23m

$1,006

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Fri 6/12

10:05 pm-3:08 pm

1 stop13h 03m

San Juan Luis Munoz Marin Intl

Sat 6/20

6:15 am-12:06 am

2 stops21h 51m

$1,112

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Thu 6/11

1:15 am-5:30 pm

1 stop12h 15m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 20 results
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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 $359). 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 03m. Fly via United Airlines or Delta to get the fastest option. The distance between Alaska and Puerto Rico is about 4905 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 $359). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Alaska to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
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LaGuardia to Santo Domingo flights
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George Bush Intcntl to Luis Munoz Marin Intl flights
LaGuardia to Santiago de los Caballeros flights
LaGuardia to Oranjestad flights
Baltimore to Punta Cana flights
John F Kennedy Intl to Saint Thomas Island flights

Top 2 airlines flying from Alaska to Puerto Rico

Discover the top 2 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$432Average$808FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$448Average$1,054FlexibilityNo cancel feeOn-time69%

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