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$373+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — SJU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$654
(United Airlines)

One-way from

$373
(eDestinos)

Popular in

December

Cheapest in

August

Average price

$964
From Alaska to Puerto Rico
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One-way flight from Alaska to Puerto Rico
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Highest demand for flights based on searches. 6% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 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 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/29:07 pmANC - SJU
2 stops20h 15mUnited Airlines
Wed 11/122:05 amSJU - ANC
2 stops22h 54mUnited Airlines
Deal found 9/15$654
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/2311:49 pmANC - SJU
2 stops58h 51mUnited Airlines
Fri 10/317:10 amSJU - ANC
2 stops19h 46mUnited Airlines
Deal found 9/16$674
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 11/19:07 pmANC - SJU
1 stop19h 53mUnited Airlines
Thu 11/135:50 pmSJU - ANC
2 stops31h 09mUnited Airlines
Deal found 9/15$682
This deal was found by Cheapflights users on 9/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:07 pmANC - SJU
1 stop13h 33mUnited Airlines
Wed 11/128:10 amSJU - ANC
1 stop16h 49mUnited Airlines
Deal found 9/16$711
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/29:07 pmANC - SJU
2 stops20h 15mUnited Airlines
Mon 11/102:05 amSJU - ANC
2 stops22h 54mUnited Airlines
Deal found 9/15$719
This deal was found by Cheapflights users on 9/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3111:59 pmANC - SJU
1 stop13h 26mUnited Airlines
Thu 11/138:10 amSJU - ANC
1 stop16h 49mUnited Airlines
Deal found 9/16$731
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/411:59 pmANC - SJU
1 stop13h 26mUnited Airlines
Thu 11/138:10 amSJU - ANC
1 stop16h 49mUnited Airlines
Deal found 9/15$744
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/319:07 pmANC - SJU
1 stop18h 53mUnited Airlines
Tue 11/112:05 amSJU - ANC
2 stops22h 54mUnited Airlines
Deal found 9/15$746
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/299:07 pmANC - SJU
3 stops40h 18mUnited Airlines
Wed 11/128:10 amSJU - ANC
2 stops19h 46mUnited Airlines
Deal found 9/14$748
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 11/19:07 pmANC - SJU
1 stop19h 53mUnited Airlines
Sun 11/98:30 amSJU - ANC
2 stops16h 29mUnited Airlines
Deal found 9/15$764
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/2910:00 amFAI - SJU
2 stops22h 47mAmerican Airlines
Wed 10/297:45 amSJU - FAI
2 stops22h 56mAmerican Airlines
Deal found 9/15$925
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 9/2612:15 pmFAI - SJU
2 stops22h 38mAmerican Airlines
Mon 10/273:10 pmSJU - FAI
2 stops15h 31mAmerican Airlines
Deal found 9/15$971

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 September 17, 2025.
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

Sat 11/1

9:07 pm-9:00 pm

1 stop19h 53m

San Juan Luis Munoz Marin Intl

Wed 11/12

8:10 am-7:59 pm

1 stop16h 49m

$654

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Wed 10/29

9:07 pm-8:00 pm

1 stop18h 53m

San Juan Luis Munoz Marin Intl

Wed 11/12

8:10 am-7:59 pm

1 stop16h 49m

$654

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Mon 11/3

9:07 pm-10:22 pm

2 stops20h 15m

San Juan Luis Munoz Marin Intl

Fri 11/14

8:10 am-10:56 pm

2 stops19h 46m

$654

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Mon 11/3

9:07 pm-10:22 pm

2 stops20h 15m

San Juan Luis Munoz Marin Intl

Wed 11/12

2:05 am-7:59 pm

2 stops22h 54m

$654

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Thu 10/23

11:49 pm-2:40 pm

2 stops58h 51m

San Juan Luis Munoz Marin Intl

Fri 10/31

7:10 am-10:56 pm

2 stops19h 46m

$674

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Mon 11/3

11:59 pm-6:25 pm

1 stop13h 26m

San Juan Luis Munoz Marin Intl

Wed 11/12

8:10 am-7:59 pm

1 stop16h 49m

$711

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Tue 11/4

11:59 pm-6:25 pm

1 stop13h 26m

San Juan Luis Munoz Marin Intl

Tue 11/11

2:05 am-7:59 pm

2 stops22h 54m

$744

AnchorageSan Juan

ANC - SJU

ANCSJU

Anchorage

Wed 11/5

11:59 pm-6:25 pm

1 stop13h 26m

San Juan Luis Munoz Marin Intl

Fri 11/14

8:10 am-7:59 pm

1 stop16h 49m

$744

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Mon 9/29

10:00 am-12:47 pm

2 stops22h 47m

San Juan Luis Munoz Marin Intl

Wed 10/29

7:45 am-2:41 am

2 stops22h 56m

$925

FairbanksSan Juan

FAI - SJU

FAISJU

Fairbanks

Wed 10/15

3:53 pm-2:08 pm

2 stops18h 15m

San Juan Luis Munoz Marin Intl

Wed 10/22

3:00 pm-12:31 pm

2 stops25h 31m

$1,216

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 21 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, September is the cheapest month in which you can book a flight from Alaska to Puerto Rico (average of $254). Flying from Alaska to Puerto Rico in June is currently the most expensive (average of $339). 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 PR?

Find hourly flight availability from Alaska to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Alaska to Puerto Rico, 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 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 18h 15m. Fly via United Airlines, American Airlines, or Alaska 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, September is the cheapest month in which you can book a flight from Alaska to Puerto Rico (average of $254). Flying from Alaska to Puerto Rico in June is currently the most expensive (average of $339). 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.
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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$500Average$1,056FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$593Average$994FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$782Average$964FlexibilityNo cancel feeOn-time71%

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