$233+ Cheap flights from Portland (PDX) to San Juan
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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJU
Jul 26 — Aug 21
Round-trip
1 adult, Economy
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Find cheap flights from Portland to San Juan with Cheapflights
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Cheapest flights from Portland to San JuanExplore the most affordable flight options available from Portland to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2026.
Explore the most affordable flight options available from Portland to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2026.
This Southwest deal was found by Cheapflights users on 6/26. 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.
Tue 9/225:50 am
PDX
- SJU
2 stops12h 15m
Southwest
Wed 9/235:15 am
SJU
- PDX
2 stops12h 45m
Southwest
Deal found 6/26![Southwest logo]()
$431
This Southwest deal was found by Cheapflights users on 6/26. 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 11/97:00 pm
PDX
- SJU
2 stops12h 45m
Southwest
Tue 11/175:45 am
SJU
- PDX
2 stops13h 15m
Southwest
Deal found 6/26![Southwest logo]()
$436
This Southwest deal was found by Cheapflights users on 6/26. 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.
Wed 10/217:35 pm
PDX
- SJU
2 stops12h 35m
Southwest
Sat 11/75:40 am
SJU
- PDX
2 stops12h 40m
Southwest
Deal found 6/26![Southwest logo]()
$451
This United Airlines deal was found by Cheapflights users on 6/26. 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.
Tue 9/227:10 am
PDX
- SJU
1 stop10h 28m
United Airlines
Tue 9/221:00 am
SJU
- PDX
2 stops17h 56m
United Airlines
Deal found 6/26![United Airlines logo]()
$461
This Delta deal was found by Cheapflights users on 6/23. 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 11/99:45 pm
PDX
- SJU
1 stop12h 35m
Delta
Tue 11/177:15 am
SJU
- PDX
2 stops15h 02m
Delta
Deal found 6/23![Delta logo]()
$466
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Wed 9/25:59 am
PDX
- SJU
2 stops15h 00m
American Airlines
Wed 9/96:27 am
SJU
- PDX
2 stops16h 43m
American Airlines
Deal found 6/25![American Airlines logo]()
$471
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:27 pm
PDX
- SJU
1 stop11h 44m
JetBlue
Thu 9/31:50 pm
SJU
- PDX
1 stop11h 59m
JetBlue
Deal found 6/25![JetBlue logo]()
$479
This Southwest deal was found by Cheapflights users on 6/22. 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 8/177:00 pm
PDX
- SJU
2 stops13h 00m
Southwest
Mon 8/245:30 am
SJU
- PDX
1 stop12h 30m
Southwest
Deal found 6/22![Southwest logo]()
$481
This American Airlines deal was found by Cheapflights users on 6/26. 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 10/2111:58 pm
PDX
- SJU
1 stop10h 47m
American Airlines
Sat 11/76:44 am
SJU
- PDX
1 stop16h 31m
American Airlines
Deal found 6/26![American Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/2311:40 pm
PDX
- SJU
1 stop12h 04m
United Airlines
Tue 7/281:00 am
SJU
- PDX
1 stop11h 25m
United Airlines
Deal found 6/23![United Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 6/23. 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 10/145:00 am
PDX
- SJU
1 stop9h 38m
United Airlines
Mon 10/191:00 am
SJU
- PDX
1 stop11h 50m
United Airlines
Deal found 6/23![United Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 8/295:59 am
PDX
- SJU
2 stops14h 44m
American Airlines
Wed 9/212:55 am
SJU
- PDX
1 stop20h 10m
American Airlines
Deal found 6/25![American Airlines logo]()
$491
Best flights from Portland to San JuanDiscover carefully curated flight deals from Portland to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 26, 2026.
Discover carefully curated flight deals from Portland to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 26, 2026.
This Delta deal was found by Cheapflights users on 6/21. 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.
Mon 11/97:40 pm
PDX
- SJU
2 stops13h 25m
Delta
Tue 11/177:15 am
SJU
- PDX
2 stops15h 02m
Delta
Deal found 6/21![Delta logo]()
$466
This United Airlines deal was found by Cheapflights users on 6/23. 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 10/65:00 am
PDX
- SJU
2 stops15h 50m
United Airlines
Mon 10/122:00 pm
SJU
- PDX
1 stop10h 10m
United Airlines
Deal found 6/23![United Airlines logo]()
$466
This Southwest deal was found by Cheapflights users on 6/24. 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 7/88:35 am
PDX
- SJU
2 stops12h 45m
Southwest
Mon 8/245:30 am
SJU
- PDX
1 stop12h 30m
Southwest
Deal found 6/24![Southwest logo]()
$586
This Delta deal was found by Cheapflights users on 6/23. 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 10/1710:05 pm
PDX
- SJU
1 stop10h 51m
Delta
Thu 10/221:06 pm
SJU
- PDX
2 stops13h 46m
Delta
Deal found 6/23![Delta logo]()
$466
This United Airlines deal was found by Cheapflights users on 6/22. 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 11/1810:00 am
PDX
- SJU
1 stop10h 36m
United Airlines
Thu 11/261:00 pm
SJU
- PDX
1 stop13h 06m
United Airlines
Deal found 6/22![United Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 6/22. 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 11/1810:55 pm
PDX
- SJU
1 stop11h 05m
Delta
Thu 11/263:35 pm
SJU
- PDX
2 stops12h 16m
Delta
Deal found 6/22![Delta logo]()
$466
This United Airlines deal was found by Cheapflights users on 6/22. 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 10/267:07 pm
PDX
- SJU
2 stops12h 43m
United Airlines
Fri 10/301:21 pm
SJU
- PDX
2 stops14h 14m
United Airlines
Deal found 6/22![United Airlines logo]()
$556
This Southwest deal was found by Cheapflights users on 6/24. 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 12/26:20 am
PDX
- SJU
2 stops11h 55m
Southwest
Sun 12/612:40 pm
SJU
- PDX
2 stops15h 15m
Southwest
Deal found 6/24![Southwest logo]()
$621
This Delta deal was found by Cheapflights users on 6/26. 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.
Thu 10/157:14 pm
PDX
- SJU
2 stops13h 42m
Delta
Tue 10/207:00 am
SJU
- PDX
2 stops18h 04m
Delta
Deal found 6/26![Delta logo]()
$571
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/2411:40 pm
PDX
- SJU
1 stop12h 04m
United Airlines
Thu 7/301:00 am
SJU
- PDX
1 stop11h 25m
United Airlines
Deal found 6/24![United Airlines logo]()
$606
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/2410:52 pm
PDX
- SJU
1 stop11h 53m
United Airlines
Tue 7/281:00 am
SJU
- PDX
1 stop11h 25m
United Airlines
Deal found 6/23![United Airlines logo]()
$625
Last-minute flights from Portland to San JuanDiscover last-minute flight deals from Portland to San Juan. Data last updated June 26, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to San Juan. Data last updated June 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/810:52 pm
PDX
- SJU
1 stop10h 12m
United Airlines
Sun 8/231:00 am
SJU
- PDX
1 stop11h 50m
United Airlines
Deal found 6/24![United Airlines logo]()
$571
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Mon 7/1310:52 pm
PDX
- SJU
1 stop10h 12m
United Airlines
Tue 7/141:00 am
SJU
- PDX
1 stop11h 25m
United Airlines
Deal found 6/21![United Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 6/22. 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 7/175:07 am
PDX
- SJU
1 stop20h 32m
American Airlines
Wed 7/297:00 am
SJU
- PDX
1 stop19h 30m
American Airlines
Deal found 6/22![American Airlines logo]()
$561
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/1811:29 pm
PDX
- SJU
1 stop10h 05m
United Airlines
Tue 7/281:00 am
SJU
- PDX
1 stop11h 25m
United Airlines
Deal found 6/24![United Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/2311:40 pm
PDX
- SJU
1 stop12h 04m
United Airlines
Tue 7/281:00 am
SJU
- PDX
1 stop11h 25m
United Airlines
Deal found 6/23![United Airlines logo]()
$487
This Expedia deal was found by Cheapflights users on 6/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2411:27 pm
PDX
- SJU
2 stops16h 45m
JetBlue
Wed 7/298:10 pm
SJU
- PDX
2 stops19h 53m
JetBlue
Deal found 6/25![JetBlue logo]()
$569
This American Airlines deal was found by Cheapflights users on 6/22. 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 7/2810:30 pm
PDX
- SJU
1 stop12h 03m
American Airlines
Mon 8/37:00 am
SJU
- PDX
1 stop19h 30m
American Airlines
Deal found 6/22![American Airlines logo]()
$510
One-way flights from Portland to San JuanSearch for one-way flight options from Portland to San Juan. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
Search for one-way flight options from Portland to San Juan. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
This Delta deal was found by Cheapflights users on 6/21. 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.
Fri 10/27:15 pm
PDX
- SJU
2 stops13h 48m
Delta
Deal found 6/21![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/2610:54 pm
PDX
- SJU
1 stop10h 10m
United Airlines
Deal found 6/23![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Thu 8/610:58 pm
PDX
- SJU
1 stop20h 26m
American Airlines
Deal found 6/25![American Airlines logo]()
$275
This deal was found by Cheapflights users on 6/23. 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.
Thu 10/110:33 pm
PDX
- SJU
1 stop12h 12m
United Airlines
Deal found 6/23![United Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:42 pm
PDX
- SJU
2 stops35h 15m
Frontier
Deal found 6/25![Frontier logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Thu 7/92:48 pm
PDX
- SJU
2 stops44h 07m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:26 pm
PDX
- SJU
2 stops32h 03m
Frontier
Deal found 6/25![Frontier logo]()
$290
This Trip.com deal was found by Cheapflights users on 6/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:49 pm
PDX
- SJU
2 stops27h 39m
Frontier
Deal found 6/24![Frontier logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/125:35 pm
PDX
- SJU
2 stops43h 30m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:36 pm
PDX
- SJU
2 stops25h 07m
Frontier
Deal found 6/25![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:36 pm
PDX
- SJU
2 stops29h 39m
Frontier
Deal found 6/25![Frontier logo]()
$310
Find flight deals from Portland to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 26, 2026.
Round-trip from | $431 (Southwest) |
|---|---|
One-way from | $233 (United Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $676 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to San Juan 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 June 26, 2026.
Use the filters below to find and compare flights from Portland to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Mon 11/9
7:40 pm-1:05 pm
2 stops13h 25m
San Juan Luis Munoz Marin Intl
Tue 11/17
7:15 am-6:17 pm
2 stops15h 02m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Tue 10/6
5:00 am-11:50 pm
2 stops15h 50m
San Juan Luis Munoz Marin Intl
Mon 10/12
2:00 pm-9:10 pm
1 stop10h 10m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Sat 10/17
10:05 pm-11:56 am
1 stop10h 51m
San Juan Luis Munoz Marin Intl
Thu 10/22
1:06 pm-11:52 pm
2 stops13h 46m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Wed 11/18
10:00 am-12:36 am
1 stop10h 36m
San Juan Luis Munoz Marin Intl
Thu 11/26
1:00 pm-10:06 pm
1 stop13h 06m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Wed 11/18
10:55 pm-2:00 pm
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Thu 11/26
3:35 pm-11:51 pm
2 stops12h 16m
$466
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Mon 10/26
7:07 pm-10:50 am
2 stops12h 43m
San Juan Luis Munoz Marin Intl
Fri 10/30
1:21 pm-12:35 am
2 stops14h 14m
$556
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Thu 10/15
7:14 pm-11:56 am
2 stops13h 42m
San Juan Luis Munoz Marin Intl
Tue 10/20
7:00 am-10:04 pm
2 stops18h 04m
$571
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Wed 7/8
8:35 am-12:20 am
2 stops12h 45m
San Juan Luis Munoz Marin Intl
Mon 8/24
5:30 am-3:00 pm
1 stop12h 30m
$586
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Fri 7/24
11:40 pm-2:44 pm
1 stop12h 04m
San Juan Luis Munoz Marin Intl
Thu 7/30
1:00 am-9:25 am
1 stop11h 25m
$606
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Wed 12/2
6:20 am-10:15 pm
2 stops11h 55m
San Juan Luis Munoz Marin Intl
Sun 12/6
12:40 pm-11:55 pm
2 stops15h 15m
$621
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Portland to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Portland with our price prediction graph.
PDX-PR1
PDX-SJU
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 Portland to San Juan
PDX-PR1
PDX-SJU
What is the cheapest month to book a flight from Portland to San Juan?
Currently, September is the cheapest month in which you can book a flight from Portland to San Juan (average of $200). Flying from Portland to San Juan in August is currently the most expensive (average of $399). 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.
How much does it cost to fly round-trip from Portland to San Juan?
How far ahead should I book a flight from Portland to San Juan?
The price you pay for your flight from Portland to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated June 26, 2026.
Read through reviews of airlines operating flights from Portland to San Juan, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Portland to San Juan. 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 Portland to San Juan
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Portland and San Juan flights
Browse other Portland and San Juan flight options. Last updated on June 26, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on June 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Portland to San Juan
Discover the top 4 airlines that operate flights from Portland to San Juan. 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 June 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$235 | Average$469 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$399 | Average$640 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$408 | Average$488 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$418 | Average$593 | FlexibilityNo cancel fee | On-time69% |