$236+ Cheap flights from Portland (PDX) to San Juan
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJU
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Portland to San Juan 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Portland to San Juan
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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 September 17, 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 September 17, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:15 am -
2 stops13h 55m
Wed 11/412:30 pm -
2 stops14h 55m
Deal found 9/14![Southwest logo]()
$448
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:35 pm -
2 stops10h 35m
Thu 10/2910:10 am -
2 stops11h 55m
Deal found 9/14![Southwest logo]()
$487
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:10 pm -
2 stops13h 30m
Thu 10/292:59 pm -
2 stops11h 48m
Deal found 9/16![Delta logo]()
$526
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:20 pm -
2 stops12h 30m
Mon 11/912:40 pm -
2 stops14h 05m
Deal found 9/15![Southwest logo]()
$527
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:15 am -
2 stops13h 55m
Wed 10/2112:40 pm -
2 stops12h 35m
Deal found 9/15![Southwest logo]()
$546
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:03 pm -
1 stop9h 06m
Fri 12/183:38 pm -
1 stop12h 31m
Deal found 9/14![American Airlines logo]()
$558
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:00 am -
1 stop15h 16m
Sun 12/137:30 am -
1 stop20h 29m
Deal found 9/14![American Airlines logo]()
$563
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 11/211:00 pm -
1 stop19h 39m
Wed 11/119:45 am -
1 stop18h 14m
Deal found 9/15![American Airlines logo]()
$564
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.
Wed 12/95:00 am -
1 stop9h 25m
Tue 12/158:25 am -
1 stop10h 54m
Deal found 9/15![United Airlines logo]()
$565
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:35 pm -
2 stops13h 20m
Sun 11/155:35 am -
2 stops12h 15m
Deal found 9/15![Southwest logo]()
$566
This American Airlines deal was found by Cheapflights users on 9/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:15 am -
2 stops12h 23m
Sat 12/198:14 am -
1 stop17h 53m
Deal found 9/12![American Airlines logo]()
$567
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 10/1810:33 pm -
1 stop12h 12m
Sun 11/82:21 pm -
1 stop12h 48m
Deal found 9/15![United Airlines logo]()
$590
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 September 17, 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 September 17, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/237:00 am -
2 stops11h 00m
Sun 1/317:35 am -
2 stops15h 25m
Deal found 9/15![Southwest logo]()
$526
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.
Sat 10/317:00 am -
2 stops13h 36m
Sat 11/78:25 am -
1 stop10h 58m
Deal found 9/14![United Airlines logo]()
$526
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:10 am -
1 stop12h 44m
Tue 11/177:00 am -
1 stop10h 14m
Deal found 9/14![Delta logo]()
$526
This Delta deal was found by Cheapflights users on 9/13. 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 1/136:00 am -
2 stops13h 50m
Sun 1/176:15 am -
2 stops16h 48m
Deal found 9/13![Delta logo]()
$586
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 10/1010:33 pm -
1 stop10h 24m
Tue 10/131:00 am -
1 stop11h 50m
Deal found 9/15![United Airlines logo]()
$616
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.
Tue 10/277:00 am -
1 stop10h 24m
Sat 10/3112:00 pm -
1 stop12h 58m
Deal found 9/16![United Airlines logo]()
$616
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.
Wed 2/35:15 am -
1 stop9h 10m
Wed 3/31:00 pm -
1 stop12h 21m
Deal found 9/16![United Airlines logo]()
$616
This Delta deal was found by Cheapflights users on 9/13. 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 1/86:04 am -
1 stop10h 56m
Mon 1/182:15 pm -
2 stops13h 17m
Deal found 9/13![Delta logo]()
$708
This Southwest deal was found by Cheapflights users on 9/12. 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.
Thu 12/106:00 am -
2 stops13h 20m
Sat 12/199:55 am -
2 stops14h 20m
Deal found 9/12![Southwest logo]()
$891
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 10/16:55 pm -
2 stops17h 47m
Fri 10/301:05 am -
3 stops20h 19m
Deal found 9/16![United Airlines logo]()
$844
Last-minute flights from Portland to San JuanDiscover last-minute flight deals from Portland to San Juan. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to San Juan. Data last updated September 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/1110:33 pm -
1 stop12h 12m
Sun 10/182:00 pm -
1 stop11h 53m
Deal found 9/13![United Airlines logo]()
$603
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:15 am -
2 stops13h 55m
Wed 10/2112:40 pm -
2 stops12h 35m
Deal found 9/15![Southwest logo]()
$546
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.
Wed 10/146:50 am -
1 stop10h 48m
Sun 10/182:00 pm -
1 stop11h 53m
Deal found 9/16![United Airlines logo]()
$592
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:09 pm -
2 stops14h 22m
Sun 10/186:00 am -
1 stop20h 39m
Deal found 9/16![American Airlines logo]()
$598
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:35 pm -
2 stops13h 20m
Sun 11/155:35 am -
2 stops12h 15m
Deal found 9/15![Southwest logo]()
$566
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 10/1810:33 pm -
1 stop12h 12m
Sun 11/82:21 pm -
1 stop12h 48m
Deal found 9/15![United Airlines logo]()
$590
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:20 pm -
2 stops12h 30m
Mon 11/912:40 pm -
2 stops14h 05m
Deal found 9/15![Southwest logo]()
$527
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:00 pm -
1 stop9h 40m
Mon 10/267:15 am -
1 stop14h 54m
Deal found 9/14![Delta logo]()
$593
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:10 pm -
2 stops13h 30m
Thu 10/292:59 pm -
2 stops11h 48m
Deal found 9/16![Delta logo]()
$526
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:35 pm -
2 stops10h 35m
Thu 10/2910:10 am -
2 stops11h 55m
Deal found 9/14![Southwest logo]()
$487
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:15 am -
2 stops13h 55m
Wed 11/412:30 pm -
2 stops14h 55m
Deal found 9/14![Southwest logo]()
$448
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 10/277:00 am -
1 stop10h 24m
Sat 10/3112:00 pm -
1 stop12h 58m
Deal found 9/15![United Airlines logo]()
$616
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 September 17, 2026.
Search for one-way flight options from Portland to San Juan. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:35 pm -
2 stops10h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 9/17. 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 11/305:10 pm -
2 stops14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$263
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:38 pm -
2 stops17h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$270
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:38 pm -
2 stops17h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$271
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:36 pm -
2 stops13h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$304
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Thu 12/314:28 pm -
1 stop8h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$308
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:20 pm -
2 stops12h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
Mon 11/306:12 pm -
3 stops51h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$317
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:20 pm -
3 stops36h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$320
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:24 pm -
2 stops34h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$327
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/210:15 pm -
1 stop9h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$330
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:45 pm -
1 stop11h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$341
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 September 17, 2026.
Round-trip from | $448 (Southwest) |
|---|---|
One-way from | $236 (Southwest) |
Popular in | March |
Cheapest in | September |
Average price | $466 |
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 7,457,451 searches. Data last updated September 17, 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
Quickest round-trip
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Mon 10/5
7:35 pm-9:10 am
2 stops10h 35m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$236
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Sat 1/2
7:36 pm-1:05 pm
2 stops13h 29m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Thu 10/8
8:35 am-10:57 pm
1 stop11h 22m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Fri 10/9
10:33 pm-1:45 pm
1 stop12h 12m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Tue 12/1
8:00 am-11:57 pm
1 stop11h 57m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Tue 10/6
6:00 am-11:44 pm
2 stops14h 44m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Mon 11/30
5:10 pm-11:40 am
2 stops14h 30m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Sat 12/12
1:10 pm-10:30 am
2 stops17h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Sat 12/12
11:17 pm-1:53 pm
1 stop10h 36m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
PortlandSan Juan
PDX Portland - SJU San Juan Luis Munoz Marin Intl
PDXSJU
Portland
Mon 1/11
6:04 am-11:50 pm
1 stop13h 46m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$263
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 $466). Flying from Portland to San Juan in March is currently the most expensive (average of $716). 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?
Airfare is below average for this route at the moment.
Portland to San Juan flights typically cost between $466 and $481 in October.The cheapest round-trip price found within the last 5 days was $448 on Southwest (Oct 27-Nov 4).
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 79 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 September 17, 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.
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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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Portland and San Juan flights
Browse other Portland and San Juan flight options. Last updated on September 17, 2026.
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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 7,457,451 searches. Data last updated September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$235 | Average$489 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$408 | Average$536 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$419 | Average$594 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$419 | Average$639 | FlexibilityNo cancel fee | On-time71% |