$408+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — SJU
Apr 29 — May 61
Round-trip
1 adult, Economy
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Find cheap flights from Alaska to Puerto Rico with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Alaska to Puerto Rico
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Best
Last-minute
One-way
Cheapest flights from Alaska to Puerto RicoExplore 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 30, 2026.
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 30, 2026.
This Delta deal was found by Cheapflights users on 3/30. 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.
Tue 9/18:30 pm
ANC
- SJU
1 stop11h 26m
Delta
Thu 10/17:30 am
SJU
- ANC
2 stops22h 05m
Delta
Deal found 3/30![Delta logo]()
$815
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/268:50 pm
ANC
- SJU
2 stops23h 00m
United Airlines
Wed 4/291:00 am
SJU
- ANC
2 stops20h 01m
United Airlines
Deal found 3/25![United Airlines logo]()
$834
This Southwest deal was found by Cheapflights users on 3/28. 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.
Wed 9/211:15 pm
ANC
- SJU
2 stops19h 35m
Southwest
Tue 9/86:00 am
SJU
- ANC
2 stops21h 45m
Southwest
Deal found 3/28![Southwest logo]()
$835
This Delta deal was found by Cheapflights users on 3/29. 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 4/241:45 am
FAI
- SJU
2 stops14h 39m
Delta
Sat 5/26:15 am
SJU
- FAI
2 stops22h 25m
Delta
Deal found 3/29![Delta logo]()
$856
This Delta deal was found by Cheapflights users on 3/26. 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 7/85:20 pm
ANC
- SJU
2 stops15h 35m
Delta
Fri 7/242:05 pm
SJU
- ANC
2 stops15h 24m
Delta
Deal found 3/26![Delta logo]()
$875
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Sun 6/149:53 pm
ANC
- SJU
2 stops16h 32m
American Airlines
Fri 6/195:30 am
SJU
- ANC
1 stop21h 05m
American Airlines
Deal found 3/25![American Airlines logo]()
$895
This American Airlines deal was found by Cheapflights users on 3/26. 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 7/89:55 pm
ANC
- SJU
1 stop21h 56m
American Airlines
Fri 7/245:45 am
SJU
- ANC
1 stop20h 54m
American Airlines
Deal found 3/26![American Airlines logo]()
$900
This American Airlines deal was found by Cheapflights users on 3/28. 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 9/29:55 pm
ANC
- SJU
1 stop12h 15m
American Airlines
Tue 9/88:00 am
SJU
- ANC
2 stops19h 54m
American Airlines
Deal found 3/28![American Airlines logo]()
$925
This American Airlines deal was found by Cheapflights users on 3/26. 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 4/238:30 pm
ANC
- SJU
1 stop22h 32m
American Airlines
Thu 4/3011:59 pm
SJU
- ANC
1 stop22h 51m
American Airlines
Deal found 3/26![American Airlines logo]()
$935
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Sun 10/43:53 pm
FAI
- SJU
2 stops17h 52m
American Airlines
Sun 10/118:35 am
SJU
- FAI
2 stops21h 08m
American Airlines
Deal found 3/29![American Airlines logo]()
$936
This Delta deal was found by Cheapflights users on 3/26. 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 4/181:41 pm
ANC
- SJU
2 stops19h 11m
Delta
Sat 5/27:30 am
SJU
- ANC
2 stops15h 16m
Delta
Deal found 3/26![Delta logo]()
$945
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Sun 5/311:20 am
FAI
- SJU
2 stops18h 19m
American Airlines
Tue 6/95:30 am
SJU
- FAI
2 stops21h 47m
American Airlines
Deal found 3/29![American Airlines logo]()
$1,000
Best flights from Alaska to Puerto RicoDiscover carefully curated flight deals from Alaska to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 30, 2026.
Discover carefully curated flight deals from Alaska to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 30, 2026.
This Delta deal was found by Cheapflights users on 3/27. 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.
Tue 9/18:30 pm
ANC
- SJU
1 stop13h 00m
Delta
Thu 10/17:30 am
SJU
- ANC
2 stops18h 52m
Delta
Deal found 3/27![Delta logo]()
$815
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/268:50 pm
ANC
- SJU
2 stops23h 00m
United Airlines
Wed 4/291:00 am
SJU
- ANC
2 stops20h 01m
United Airlines
Deal found 3/25![United Airlines logo]()
$834
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Sun 6/149:53 pm
ANC
- SJU
2 stops16h 32m
American Airlines
Fri 6/195:30 am
SJU
- ANC
1 stop21h 05m
American Airlines
Deal found 3/25![American Airlines logo]()
$895
This Southwest deal was found by Cheapflights users on 3/25. 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.
Sun 6/1410:25 pm
ANC
- SJU
2 stops18h 50m
Southwest
Fri 6/196:30 am
SJU
- ANC
2 stops18h 45m
Southwest
Deal found 3/25![Southwest logo]()
$965
This Delta deal was found by Cheapflights users on 3/29. 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 4/241:45 am
FAI
- SJU
2 stops14h 39m
Delta
Sat 5/26:15 am
SJU
- FAI
2 stops22h 25m
Delta
Deal found 3/29![Delta logo]()
$856
This United Airlines deal was found by Cheapflights users on 3/27. 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 9/18:35 pm
ANC
- SJU
1 stop12h 19m
United Airlines
Thu 10/12:00 pm
SJU
- ANC
1 stop12h 39m
United Airlines
Deal found 3/27![United Airlines logo]()
$895
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Sun 5/311:20 am
FAI
- SJU
2 stops18h 19m
American Airlines
Tue 6/95:30 am
SJU
- FAI
2 stops21h 47m
American Airlines
Deal found 3/29![American Airlines logo]()
$1,000
This Delta deal was found by Cheapflights users on 3/26. 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 4/188:25 pm
ANC
- SJU
1 stop13h 00m
Delta
Sat 5/26:15 am
SJU
- ANC
2 stops16h 31m
Delta
Deal found 3/26![Delta logo]()
$945
This United Airlines deal was found by Cheapflights users on 3/29. 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 8/231:15 am
FAI
- SJU
2 stops18h 35m
United Airlines
Wed 8/264:55 pm
SJU
- FAI
2 stops33h 54m
United Airlines
Deal found 3/29![United Airlines logo]()
$1,083
This Delta deal was found by Cheapflights users on 3/28. 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 4/181:41 pm
ANC
- SJU
2 stops19h 11m
Delta
Sun 5/37:15 am
SJU
- ANC
2 stops21h 10m
Delta
Deal found 3/28![Delta logo]()
$995
This Delta deal was found by Cheapflights users on 3/28. 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 9/182:40 pm
FAI
- SJU
2 stops18h 20m
Delta
Sat 9/267:30 am
SJU
- FAI
2 stops20h 36m
Delta
Deal found 3/28![Delta logo]()
$1,071
This United Airlines deal was found by Cheapflights users on 3/28. 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 6/18:55 pm
FAI
- SJU
1 stop13h 49m
United Airlines
Tue 6/91:40 pm
SJU
- FAI
1 stop13h 19m
United Airlines
Deal found 3/28![United Airlines logo]()
$1,185
This United Airlines deal was found by Cheapflights users on 3/25. 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 6/298:20 pm
ANC
- CPX
2 stops17h 01m
United Airlines
Fri 7/310:48 am
CPX
- ANC
2 stops32h 05m
United Airlines
Deal found 3/25![United Airlines logo]()
$2,078
This United Airlines deal was found by Cheapflights users on 3/26. 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 4/258:50 pm
ANC
- VQS
2 stops39h 03m
United Airlines
Sat 5/27:49 pm
VQS
- ANC
2 stops52h 17m
United Airlines
Deal found 3/26![United Airlines logo]()
$3,857
Last-minute flights from Alaska to Puerto RicoDiscover last-minute flight deals from Alaska to Puerto Rico. Data last updated March 30, 2026 and is based on user searches.
Discover last-minute flight deals from Alaska to Puerto Rico. Data last updated March 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/1211:47 pm
ANC
- SJU
1 stop13h 51m
United Airlines
Thu 4/163:56 pm
SJU
- ANC
1 stop31h 52m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,048
This Delta deal was found by Cheapflights users on 3/26. 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 4/181:41 pm
ANC
- SJU
2 stops19h 11m
Delta
Sat 5/27:30 am
SJU
- ANC
2 stops15h 16m
Delta
Deal found 3/26![Delta logo]()
$945
This Delta deal was found by Cheapflights users on 3/27. 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 4/188:25 pm
ANC
- SJU
1 stop11h 20m
Delta
Sun 5/37:15 am
SJU
- ANC
2 stops21h 10m
Delta
Deal found 3/27![Delta logo]()
$995
This United Airlines deal was found by Cheapflights users on 3/27. 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
1 stop13h 51m
United Airlines
Sun 5/33:56 pm
SJU
- ANC
1 stop32h 10m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,019
This American Airlines deal was found by Cheapflights users on 3/26. 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 4/238:30 pm
ANC
- SJU
1 stop22h 32m
American Airlines
Thu 4/3011:59 pm
SJU
- ANC
1 stop22h 51m
American Airlines
Deal found 3/26![American Airlines logo]()
$935
This Delta deal was found by Cheapflights users on 3/29. 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 4/241:45 am
FAI
- SJU
2 stops14h 39m
Delta
Sat 5/26:15 am
SJU
- FAI
2 stops22h 25m
Delta
Deal found 3/29![Delta logo]()
$856
This United Airlines deal was found by Cheapflights users on 3/26. 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 4/258:50 pm
ANC
- VQS
2 stops39h 03m
United Airlines
Sat 5/27:49 pm
VQS
- ANC
2 stops52h 17m
United Airlines
Deal found 3/26![United Airlines logo]()
$3,857
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/268:50 pm
ANC
- SJU
2 stops23h 00m
United Airlines
Wed 4/291:00 am
SJU
- ANC
2 stops20h 01m
United Airlines
Deal found 3/25![United Airlines logo]()
$834
One-way flights from Alaska to Puerto RicoSearch for one-way flight options from Alaska to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
Search for one-way flight options from Alaska to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
This United Airlines deal was found by Cheapflights users on 3/29. 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 9/51:15 am
FAI
- SJU
2 stops15h 23m
United Airlines
Deal found 3/29![United Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 3/27. 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 6/122:41 pm
FAI
- SJU
2 stops20h 30m
Delta
Deal found 3/27![Delta logo]()
$428
This Southwest deal was found by Cheapflights users on 3/26. 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.
Mon 5/1810:25 pm
ANC
- SJU
2 stops18h 40m
Southwest
Deal found 3/26![Southwest logo]()
$447
This United Airlines deal was found by Cheapflights users on 3/26. 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 5/1811:49 pm
ANC
- SJU
1 stop13h 49m
United Airlines
Deal found 3/26![United Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/172:25 am
ANC
- SJU
3 stops40h 04m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/78:30 pm
ANC
- SJU
2 stops17h 40m
American Airlines
Deal found 3/27![American Airlines logo]()
$547
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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.
Tue 4/710:44 pm
ANC
- SJU
3 stops20h 18m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$837
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:53 pm
FAI
- SJU
3 stops41h 37m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$892
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 30, 2026.
Round-trip from | $790 (Southwest) |
|---|---|
One-way from | $408 (United Airlines) |
Popular in | February |
Cheapest in | August |
Average price | $832 |
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 30, 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
Cheapest round-trip
AnchorageSan Juan
ANC - SJU
ANCSJU
Anchorage
Tue 9/1
8:30 pm-1:30 pm
1 stop13h 00m
San Juan Luis Munoz Marin Intl
Thu 10/1
7:30 am-10:22 pm
2 stops18h 52m
$815
AnchorageSan Juan
ANC - SJU
ANCSJU
Anchorage
Sun 4/26
8:50 pm-11:50 pm
2 stops23h 00m
San Juan Luis Munoz Marin Intl
Wed 4/29
1:00 am-5:01 pm
2 stops20h 01m
$834
FairbanksSan Juan
FAI - SJU
FAISJU
Fairbanks
Fri 4/24
1:45 am-8:24 pm
2 stops14h 39m
San Juan Luis Munoz Marin Intl
Sat 5/2
6:15 am-12:40 am
2 stops22h 25m
$856
AnchorageSan Juan
ANC - SJU
ANCSJU
Anchorage
Sun 6/14
9:53 pm-6:25 pm
2 stops16h 32m
San Juan Luis Munoz Marin Intl
Fri 6/19
5:30 am-10:35 pm
1 stop21h 05m
$895
Quickest round-trip
AnchorageSan Juan
ANC - SJU
ANCSJU
Anchorage
Tue 9/1
8:35 pm-12:54 pm
1 stop12h 19m
San Juan Luis Munoz Marin Intl
Thu 10/1
2:00 pm-10:39 pm
1 stop12h 39m
$895
AnchorageSan Juan
ANC - SJU
ANCSJU
Anchorage
Sat 4/18
8:25 pm-1:25 pm
1 stop13h 00m
San Juan Luis Munoz Marin Intl
Sat 5/2
6:15 am-6:46 pm
2 stops16h 31m
$945
AnchorageSan Juan
ANC - SJU
ANCSJU
Anchorage
Sun 6/14
10:25 pm-9:15 pm
2 stops18h 50m
San Juan Luis Munoz Marin Intl
Fri 6/19
6:30 am-9:15 pm
2 stops18h 45m
$965
AnchorageSan Juan
ANC - SJU
ANCSJU
Anchorage
Sat 4/18
1:41 pm-12:52 pm
2 stops19h 11m
San Juan Luis Munoz Marin Intl
Sun 5/3
7:15 am-12:25 am
2 stops21h 10m
$995
FairbanksSan Juan
FAI - SJU
FAISJU
Fairbanks
Sun 5/31
1:20 am-11:39 pm
2 stops18h 19m
San Juan Luis Munoz Marin Intl
Tue 6/9
5:30 am-11:17 pm
2 stops21h 47m
$1,000
FairbanksSan Juan
FAI - SJU
FAISJU
Fairbanks
Fri 9/18
2:40 pm-1:00 pm
2 stops18h 20m
San Juan Luis Munoz Marin Intl
Sat 9/26
7:30 am-12:06 am
2 stops20h 36m
$1,071
Showing 1-10 of 20 resultsSorted by cheapest first
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.
ANC-SJU
FAI-SJU
ANC-VQS
ANC-CPX
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
USAK-PR0
ANC-SJU
FAI-SJU
ANC-VQS
ANC-CPX
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.
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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.
Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Alaska to Puerto Rico by cabin class
Find flights from Alaska to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Alaska and Puerto Rico flights
Browse other Alaska and Puerto Rico flight options. Last updated on March 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Alaska to Puerto Rico flights
Consider these flights traveling from Alaska to Puerto Rico.
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 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$432 | Average$824 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$496 | Average$914 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$794 | Average$904 | FlexibilityNo cancel fee | On-time71% |