$111+ Cheap flights from Portland, ME (PWM) 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SJU
Mar 14 — Mar 211
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 February 12, 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 February 12, 2026.
This Delta deal was found by Cheapflights users on 2/10. 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 5/22:51 pm
PWM
- SJU
1 stop9h 08m
Delta
Sat 5/97:00 am
SJU
- PWM
1 stop6h 58m
Delta
Deal found 2/10![Delta logo]()
$286
This United Airlines deal was found by Cheapflights users on 2/10. 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 6/26:00 am
PWM
- SJU
1 stop7h 45m
United Airlines
Fri 6/51:00 am
SJU
- PWM
1 stop8h 11m
United Airlines
Deal found 2/10![United Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 2/9. 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 5/59:39 am
PWM
- SJU
1 stop10h 55m
United Airlines
Tue 5/51:00 am
SJU
- PWM
2 stops9h 18m
United Airlines
Deal found 2/9![United Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Wed 4/16:00 am
PWM
- SJU
2 stops14h 34m
American Airlines
Wed 4/83:19 pm
SJU
- PWM
1 stop8h 03m
American Airlines
Deal found 2/12![American Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 2/11. 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 5/123:39 pm
PWM
- SJU
1 stop8h 11m
United Airlines
Mon 5/181:00 am
SJU
- PWM
2 stops9h 18m
United Airlines
Deal found 2/11![United Airlines logo]()
$312
This Orbitz deal was found by Cheapflights users on 2/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 am
PWM
- SJU
2 stops17h 00m
JetBlue
Wed 6/33:00 pm
SJU
- PWM
1 stop8h 36m
JetBlue
Deal found 2/12![JetBlue logo]()
$323
This Delta deal was found by Cheapflights users on 2/10. 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 2/245:31 am
PWM
- SJU
1 stop10h 56m
Delta
Tue 3/102:44 pm
SJU
- PWM
1 stop8h 38m
Delta
Deal found 2/10![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 2/11. 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 3/92:50 pm
PWM
- SJU
1 stop9h 35m
Southwest
Thu 3/125:30 am
SJU
- PWM
2 stops11h 15m
Southwest
Deal found 2/11![Southwest logo]()
$342
This American Airlines deal was found by Cheapflights users on 2/10. 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 2/246:36 pm
PWM
- SJU
2 stops17h 19m
American Airlines
Tue 3/107:40 am
SJU
- PWM
1 stop14h 50m
American Airlines
Deal found 2/10![American Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Tue 3/33:05 pm
PWM
- SJU
1 stop8h 31m
United Airlines
Mon 3/91:05 am
SJU
- PWM
1 stop9h 44m
United Airlines
Deal found 2/12![United Airlines logo]()
$361
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 February 12, 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 February 12, 2026.
This Delta deal was found by Cheapflights users on 2/10. 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 5/22:51 pm
PWM
- SJU
1 stop9h 08m
Delta
Sat 5/97:00 am
SJU
- PWM
1 stop6h 58m
Delta
Deal found 2/10![Delta logo]()
$286
This United Airlines deal was found by Cheapflights users on 2/9. 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 5/59:39 am
PWM
- SJU
1 stop10h 55m
United Airlines
Tue 5/51:00 am
SJU
- PWM
1 stop7h 49m
United Airlines
Deal found 2/9![United Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Wed 4/16:00 am
PWM
- SJU
2 stops14h 34m
American Airlines
Wed 4/83:19 pm
SJU
- PWM
1 stop8h 03m
American Airlines
Deal found 2/12![American Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 2/11. 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 5/122:38 pm
PWM
- SJU
1 stop9h 05m
Delta
Tue 5/197:00 am
SJU
- PWM
1 stop6h 58m
Delta
Deal found 2/11![Delta logo]()
$286
This United Airlines deal was found by Cheapflights users on 2/11. 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 5/123:39 pm
PWM
- SJU
1 stop8h 11m
United Airlines
Mon 5/181:00 am
SJU
- PWM
2 stops9h 18m
United Airlines
Deal found 2/11![United Airlines logo]()
$312
Last-minute flights from Portland to San JuanDiscover last-minute flight deals from Portland to San Juan. Data last updated February 12, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to San Juan. Data last updated February 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 2/10. 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 2/245:31 am
PWM
- SJU
1 stop10h 56m
Delta
Tue 3/102:44 pm
SJU
- PWM
1 stop8h 38m
Delta
Deal found 2/10![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 2/10. 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 2/246:36 pm
PWM
- SJU
2 stops17h 19m
American Airlines
Tue 3/107:40 am
SJU
- PWM
1 stop14h 50m
American Airlines
Deal found 2/10![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Sat 2/286:49 pm
PWM
- SJU
2 stops18h 04m
American Airlines
Tue 3/106:01 pm
SJU
- PWM
2 stops18h 13m
American Airlines
Deal found 2/12![American Airlines logo]()
$366
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Mon 3/26:36 pm
PWM
- SJU
2 stops22h 33m
American Airlines
Tue 3/106:01 pm
SJU
- PWM
2 stops18h 13m
American Airlines
Deal found 2/12![American Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Tue 3/36:00 am
PWM
- SJU
2 stops14h 00m
United Airlines
Mon 3/91:05 am
SJU
- PWM
1 stop9h 44m
United Airlines
Deal found 2/12![United Airlines logo]()
$361
This Southwest deal was found by Cheapflights users on 2/11. 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 3/92:50 pm
PWM
- SJU
1 stop9h 35m
Southwest
Thu 3/125:30 am
SJU
- PWM
2 stops11h 15m
Southwest
Deal found 2/11![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 2/11. 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 3/104:30 pm
PWM
- SJU
1 stop6h 30m
Southwest
Fri 3/135:30 am
SJU
- PWM
2 stops11h 15m
Southwest
Deal found 2/11![Southwest logo]()
$399
This Southwest deal was found by Cheapflights users on 2/12. 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.
Tue 3/174:30 pm
PWM
- SJU
1 stop6h 30m
Southwest
Tue 3/244:15 pm
SJU
- PWM
1 stop6h 50m
Southwest
Deal found 2/12![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 2/12. 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.
Wed 3/184:30 pm
PWM
- SJU
1 stop6h 30m
Southwest
Wed 3/255:15 am
SJU
- PWM
1 stop6h 40m
Southwest
Deal found 2/12![Southwest logo]()
$363
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 February 12, 2026.
Search for one-way flight options from Portland to San Juan. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
This United Airlines deal was found by Cheapflights users on 2/11. 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 5/93:39 pm
PWM
- SJU
1 stop8h 11m
United Airlines
Deal found 2/11![United Airlines logo]()
$111
This American Airlines deal was found by Cheapflights users on 2/10. 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 4/227:23 pm
PWM
- SJU
2 stops13h 50m
American Airlines
Deal found 2/10![American Airlines logo]()
$121
This Delta deal was found by Cheapflights users on 2/10. 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.
Sun 2/225:31 am
PWM
- SJU
1 stop10h 56m
Delta
Deal found 2/10![Delta logo]()
$143
This United Airlines deal was found by Cheapflights users on 2/10. 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 4/206:04 am
PWM
- SJU
2 stops15h 20m
United Airlines
Deal found 2/10![United Airlines logo]()
$154
This Delta deal was found by Cheapflights users on 2/10. 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 4/222:51 pm
PWM
- SJU
1 stop9h 08m
Delta
Deal found 2/10![Delta logo]()
$169
This American Airlines deal was found by Cheapflights users on 2/10. 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 2/225:42 am
PWM
- SJU
2 stops14h 52m
American Airlines
Deal found 2/10![American Airlines logo]()
$194
This Delta deal was found by Cheapflights users on 2/10. 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 4/202:51 pm
PWM
- SJU
1 stop9h 08m
Delta
Deal found 2/10![Delta logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 5/95:01 pm
PWM
- SJU
3 stops27h 06m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$201
This United Airlines deal was found by Cheapflights users on 2/10. 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 2/204:15 pm
PWM
- SJU
2 stops12h 56m
United Airlines
Deal found 2/10![United Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/226:18 pm
PWM
- SJU
3 stops23h 50m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$227
Find flight deals from Portland to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 February 12, 2026.
Round-trip from | $212 (United Airlines) |
|---|---|
One-way from | $106 (United Airlines) |
Popular in | February |
Cheapest in | November |
Average price | $662 |
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 February 12, 2026.
Use the filters below to find and compare flights from Portland to San Juan that are best for you.
Fly from
Portland
Fly to
San Juan
Route
Depart
Return
Price
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Sat 5/2
2:51 pm-11:59 pm
1 stop9h 08m
San Juan Luis Munoz Marin Intl
Sat 5/9
7:00 am-1:58 pm
1 stop6h 58m
$286
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Tue 5/12
2:38 pm-11:43 pm
1 stop9h 05m
San Juan Luis Munoz Marin Intl
Tue 5/19
7:00 am-1:58 pm
1 stop6h 58m
$286
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Tue 5/5
9:39 am-8:34 pm
1 stop10h 55m
San Juan Luis Munoz Marin Intl
Tue 5/5
1:00 am-8:49 am
1 stop7h 49m
$307
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Wed 4/1
6:00 am-8:34 pm
2 stops14h 34m
San Juan Luis Munoz Marin Intl
Wed 4/8
3:19 pm-11:22 pm
1 stop8h 03m
$311
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Tue 5/12
3:39 pm-11:50 pm
1 stop8h 11m
San Juan Luis Munoz Marin Intl
Mon 5/18
1:00 am-10:18 am
2 stops9h 18m
$312
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Tue 4/21
6:04 am-2:44 pm
1 stop8h 40m
$111
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Sat 4/25
6:00 am-8:34 pm
2 stops14h 34m
$111
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Sat 5/9
5:30 am-8:34 pm
2 stops15h 04m
$111
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Thu 4/23
7:23 pm-9:13 am
2 stops13h 50m
$121
PortlandSan Juan
PWM - SJU
PWMSJU
Portland
Wed 4/22
7:23 pm-9:13 am
2 stops13h 50m
$121
Showing 1-10 of 12 results
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.
PWM-PR1
PWM-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
PWM-PR1
PWM-SJU
How far ahead should I book a flight from Portland, Maine to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from Portland to San Juan. Price data was last updated on February 6, 2026.
To ensure you get the cheapest price possible for a flight from Portland, Maine to San Juan, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Portland, Maine to San Juan?
Currently, March is the cheapest month in which you can book a flight from Portland, Maine to San Juan (average of $66). Flying from Portland, Maine to San Juan in November is currently the most expensive (average of $177). 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, Maine to San Juan?
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 February 12, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Portland to San Juan. 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.
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Portland
Popular flights
Alternative routes for Portland to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to San Juan by cabin class
Find flights from Portland to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and San Juan flights
Browse other Portland and San Juan flight options. Last updated on February 12, 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 February 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Portland to San Juan
Discover the top 5 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 February 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$176 | Average$369 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$190 | Average$508 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$241 | Average$623 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$256 | Average$573 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$315 | Average$565 | FlexibilityNo cancel fee | On-time63% |