$205+ Cheap flights from Portland (PDX) to Luis Munoz Marin Intl (SJU)
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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJU
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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Cheapest flights from Portland to Luis Munoz Marin IntlExplore the most affordable flight options available from Portland to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
Explore the most affordable flight options available from Portland to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Tue 8/2511:34 pm
PDX
- SJU
2 stops12h 17m
American Airlines
Tue 9/16:00 am
SJU
- PDX
2 stops13h 51m
American Airlines
Deal found 7/26![American Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/25:59 am
PDX
- SJU
1 stop14h 16m
American Airlines
Wed 9/96:00 am
SJU
- PDX
2 stops16h 20m
American Airlines
Deal found 7/26![American Airlines logo]()
$441
This Southwest deal was found by Cheapflights users on 7/27. 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 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 7/27![Southwest logo]()
$446
This Southwest deal was found by Cheapflights users on 7/24. 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.
Thu 9/1010:45 pm
PDX
- SJU
1 stop12h 45m
Southwest
Tue 9/155:15 am
SJU
- PDX
2 stops12h 45m
Southwest
Deal found 7/24![Southwest logo]()
$451
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:20 am
PDX
- SJU
2 stops13h 35m
Southwest
Mon 11/212:40 pm
SJU
- PDX
2 stops15h 15m
Southwest
Deal found 7/27![Southwest logo]()
$456
This United Airlines deal was found by Cheapflights users on 7/23. 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 10/3011:30 pm
PDX
- SJU
1 stop12h 10m
United Airlines
Sat 12/58:10 am
SJU
- PDX
1 stop11h 13m
United Airlines
Deal found 7/23![United Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Sat 9/2611:08 pm
PDX
- SJU
2 stops13h 32m
American Airlines
Sat 10/316:00 am
SJU
- PDX
2 stops14h 09m
American Airlines
Deal found 7/26![American Airlines logo]()
$461
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 pm
PDX
- SJU
2 stops14h 20m
American Airlines
Sun 10/257:30 am
SJU
- PDX
1 stop18h 35m
American Airlines
Deal found 7/23![American Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 7/25. 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 11/95:00 am
PDX
- SJU
1 stop9h 25m
United Airlines
Tue 11/178:25 am
SJU
- PDX
1 stop10h 55m
United Airlines
Deal found 7/25![United Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 7/27. 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.
Thu 11/127:33 pm
PDX
- SJU
2 stops13h 32m
Delta
Tue 11/173:10 pm
SJU
- PDX
1 stop10h 52m
Delta
Deal found 7/27![Delta logo]()
$476
Best flights from Portland to Luis Munoz Marin IntlDiscover carefully curated flight deals from Portland to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
Discover carefully curated flight deals from Portland to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
This Southwest deal was found by Cheapflights users on 7/24. 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.
Thu 9/2410:45 pm
PDX
- SJU
1 stop12h 45m
Southwest
Tue 9/291:20 pm
SJU
- PDX
2 stops11h 55m
Southwest
Deal found 7/24![Southwest logo]()
$451
This Delta deal was found by Cheapflights users on 7/27. 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 10/2310:15 pm
PDX
- SJU
1 stop10h 50m
Delta
Thu 10/2912:55 pm
SJU
- PDX
2 stops14h 04m
Delta
Deal found 7/27![Delta logo]()
$476
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Thu 9/1011:09 pm
PDX
- SJU
1 stop11h 36m
United Airlines
Tue 9/151:25 pm
SJU
- PDX
1 stop11h 38m
United Airlines
Deal found 7/24![United Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:49 pm
PDX
- SJU
2 stops15h 16m
Delta
Sat 10/316:45 am
SJU
- PDX
2 stops18h 57m
Delta
Deal found 7/25![Delta logo]()
$476
This Southwest deal was found by Cheapflights users on 7/23. 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 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
Fri 8/212:35 pm
SJU
- PDX
2 stops12h 05m
Southwest
Deal found 7/23![Southwest logo]()
$501
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 10/57:33 pm
PDX
- SJU
2 stops16h 11m
United Airlines
Tue 10/61:00 am
SJU
- PDX
1 stop11h 50m
United Airlines
Deal found 7/27![United Airlines logo]()
$531
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:49 pm
PDX
- SJU
2 stops16h 11m
Delta
Mon 10/197:00 am
SJU
- PDX
2 stops17h 56m
Delta
Deal found 7/25![Delta logo]()
$486
This United Airlines deal was found by Cheapflights users on 7/25. 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 8/247:15 pm
PDX
- SJU
2 stops17h 27m
United Airlines
Sun 8/301:00 am
SJU
- PDX
1 stop11h 50m
United Airlines
Deal found 7/25![United Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 8/2711:02 pm
PDX
- SJU
1 stop12h 42m
United Airlines
Sun 8/301:00 am
SJU
- PDX
1 stop11h 50m
United Airlines
Deal found 7/25![United Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Sun 8/237:10 am
PDX
- SJU
1 stop10h 28m
United Airlines
Sat 8/291:00 am
SJU
- PDX
2 stops13h 28m
United Airlines
Deal found 7/26![United Airlines logo]()
$601
Last-minute flights from Portland to Luis Munoz Marin IntlDiscover last-minute flight deals from Portland to Luis Munoz Marin Intl. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Luis Munoz Marin Intl. Data last updated July 28, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/1811:34 pm
PDX
- SJU
1 stop20h 41m
American Airlines
Tue 8/256:00 am
SJU
- PDX
2 stops13h 51m
American Airlines
Deal found 7/27![American Airlines logo]()
$501
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:50 am
PDX
- SJU
2 stops12h 15m
Southwest
Tue 8/251:45 pm
SJU
- PDX
2 stops12h 25m
Southwest
Deal found 7/27![Southwest logo]()
$516
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/1911:34 pm
PDX
- SJU
1 stop20h 41m
American Airlines
Wed 8/2612:55 am
SJU
- PDX
1 stop20h 10m
American Airlines
Deal found 7/27![American Airlines logo]()
$491
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Sun 8/2311:34 pm
PDX
- SJU
2 stops12h 17m
American Airlines
Sun 10/117:30 am
SJU
- PDX
1 stop18h 35m
American Airlines
Deal found 7/26![American Airlines logo]()
$461
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:08 pm
PDX
- SJU
2 stops17h 34m
Delta
Tue 9/12:59 pm
SJU
- PDX
1 stop9h 45m
Delta
Deal found 7/25![Delta logo]()
$466
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Tue 8/2511:34 pm
PDX
- SJU
2 stops12h 17m
American Airlines
Tue 9/16:00 am
SJU
- PDX
2 stops13h 51m
American Airlines
Deal found 7/26![American Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 7/25. 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 8/265:59 am
PDX
- SJU
1 stop14h 16m
American Airlines
Tue 9/17:30 am
SJU
- PDX
2 stops13h 30m
American Airlines
Deal found 7/25![American Airlines logo]()
$441
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 pm
PDX
- SJU
2 stops15h 42m
Delta
Tue 9/12:59 pm
SJU
- PDX
1 stop9h 45m
Delta
Deal found 7/25![Delta logo]()
$476
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Sat 8/2911:34 pm
PDX
- SJU
1 stop20h 41m
American Airlines
Thu 9/36:00 am
SJU
- PDX
2 stops14h 30m
American Airlines
Deal found 7/26![American Airlines logo]()
$486
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 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 9/35:04 am
SJU
- PDX
1 stop10h 57m
JetBlue
Deal found 7/27![JetBlue logo]()
$512
One-way flights from Portland to Luis Munoz Marin IntlSearch for one-way flight options from Portland to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
Search for one-way flight options from Portland to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:56 pm
PDX
- SJU
2 stops27h 38m
Frontier
Deal found 7/27![Frontier logo]()
$205
This Southwest deal was found by Cheapflights users on 7/24. 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.
Tue 9/110:45 pm
PDX
- SJU
1 stop11h 05m
Southwest
Deal found 7/24![Southwest logo]()
$218
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Wed 8/2611:17 pm
PDX
- SJU
1 stop11h 28m
United Airlines
Deal found 7/25![United Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 9/31:47 pm
PDX
- SJU
2 stops33h 28m
Frontier
Deal found 7/24![Frontier logo]()
$233
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 8/1711:34 pm
PDX
- SJU
2 stops12h 17m
American Airlines
Deal found 7/27![American Airlines logo]()
$243
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/1911:34 pm
PDX
- SJU
1 stop20h 41m
American Airlines
Deal found 7/27![American Airlines logo]()
$248
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/17:15 pm
PDX
- SJU
2 stops16h 29m
United Airlines
Deal found 7/23![United Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:49 pm
PDX
- SJU
2 stops27h 52m
Frontier
Deal found 7/27![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Fri 8/75:49 pm
PDX
- SJU
2 stops29h 26m
Frontier
Deal found 7/24![Frontier logo]()
$285
This Trip.com deal was found by Cheapflights users on 7/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:21 pm
PDX
- SJU
2 stops20h 28m
Frontier
Deal found 7/26![Frontier logo]()
$310
This Justfly.com deal was found by Cheapflights users on 7/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:15 pm
PDX
- SJU
1 stop30h 39m
JetBlue
Deal found 7/23![JetBlue logo]()
$325
Find flight deals from Portland to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Luis Munoz Marin Intl (SJU). 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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $436 (American Airlines) |
One-way from | $205 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $612 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Luis Munoz Marin Intl 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 July 28, 2026.
Use the filters below to find and compare flights from Portland to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Thu 9/24
10:45 pm-2:30 pm
1 stop12h 45m
San Juan Luis Munoz Marin Intl
Tue 9/29
1:20 pm-10:15 pm
2 stops11h 55m
$451
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Fri 10/23
10:15 pm-12:05 pm
1 stop10h 50m
San Juan Luis Munoz Marin Intl
Thu 10/29
12:55 pm-11:59 pm
2 stops14h 04m
$476
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Wed 10/21
5:49 pm-12:05 pm
2 stops15h 16m
San Juan Luis Munoz Marin Intl
Sat 10/31
6:45 am-10:42 pm
2 stops18h 57m
$476
Quickest round-trip
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Thu 9/10
11:09 pm-1:45 pm
1 stop11h 36m
San Juan Luis Munoz Marin Intl
Tue 9/15
1:25 pm-10:03 pm
1 stop11h 38m
$486
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Fri 10/16
5:49 pm-1:00 pm
2 stops16h 11m
San Juan Luis Munoz Marin Intl
Mon 10/19
7:00 am-9:56 pm
2 stops17h 56m
$486
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Mon 8/17
7:00 pm-11:00 am
2 stops13h 00m
San Juan Luis Munoz Marin Intl
Fri 8/21
2:35 pm-11:40 pm
2 stops12h 05m
$501
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Mon 10/5
7:33 pm-2:44 pm
2 stops16h 11m
San Juan Luis Munoz Marin Intl
Tue 10/6
1:00 am-9:50 am
1 stop11h 50m
$531
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Mon 8/24
7:15 pm-3:42 pm
2 stops17h 27m
San Juan Luis Munoz Marin Intl
Sun 8/30
1:00 am-9:50 am
1 stop11h 50m
$536
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Thu 8/27
11:02 pm-2:44 pm
1 stop12h 42m
San Juan Luis Munoz Marin Intl
Sun 8/30
1:00 am-9:50 am
1 stop11h 50m
$536
PortlandSan Juan
PDX - SJU
PDXSJU
Portland
Sun 8/23
7:10 am-8:38 pm
1 stop10h 28m
San Juan Luis Munoz Marin Intl
Sat 8/29
1:00 am-11:28 am
2 stops13h 28m
$601
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Portland to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Luis Munoz Marin Intl in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Portland with our price prediction graph.
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 Luis Munoz Marin Intl Airport
How far ahead should I book a flight from Portland to San Juan Luis Munoz Marin Intl Airport?
Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Portland to San Juan Luis Munoz Marin Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Portland to San Juan Luis Munoz Marin Intl Airport (average of $466). Flying from Portland to San Juan Luis Munoz Marin Intl Airport in March is currently the most expensive (average of $708). 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 Luis Munoz Marin Intl Airport?
Airfare is below average for this route at the moment.
Portland to San Juan Luis Munoz Marin Intl Airport flights typically cost between $466 and $650 in August.The cheapest round-trip price found within the last 5 days was $436 on American Airlines (Aug 25-Sep 1).
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated July 28, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Portland to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
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 Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsFajardo
Luquillo
Dorado
Rio Grande
Humacao
Bayamón
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Other flights to Luis Munoz Marin Intl
Explore flights to Luis Munoz Marin Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Portland and Luis Munoz Marin Intl flights
Browse other Portland and Luis Munoz Marin Intl flight options. Last updated on July 28, 2026.
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Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
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Top 4 airlines flying from Portland to Luis Munoz Marin Intl
Discover the top 4 airlines that operate flights from Portland to Luis Munoz Marin Intl. 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$235 | Average$466 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$399 | Average$634 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$408 | Average$488 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$419 | Average$592 | FlexibilityNo cancel fee | On-time69% |