Cheap flights from Portland to San Juan from $163
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to San Juan departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Portland to San Juan
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
United Airlines flights from Portland to San Juan Luis Munoz Marin Intl Airport
Our best United Airlines deals on Portland to San Juan Luis Munoz Marin Intl Airport flight tickets
Southwest flights from Portland to San Juan Luis Munoz Marin Intl Airport
Our best Southwest deals on Portland to San Juan Luis Munoz Marin Intl Airport flight tickets
See travel insights to San Juan from
How to get the cheapest flight ticket from Portland to San Juan Luis Munoz Marin Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Portland and San Juan Luis Munoz Marin Intl Airport?
What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?
If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $431.
What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Portland is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $454. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $655.
What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the afternoon when flights can be purchased for as low as $428. Flights in the morning are often more expensive with an average ticket price of $602.
How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?
You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $552 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Portland for as low as $432 on momondo.
Can stopping save me money on Portland to San Juan Luis Munoz Marin Intl Airport flights?
You could potentially save up to 2% on your flight if you consider stops on a Portland to San Juan Luis Munoz Marin Intl Airport flight.
How have Portland to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?
As of July 2025, prices for Portland to San Juan Luis Munoz Marin Intl Airport flights are approximately 17% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Portland to San Juan Luis Munoz Marin Intl?
Spirit Airlines, JetBlue, and Delta are the most popular carriers operating from Portland to San Juan Luis Munoz Marin Intl
What airlines fly to San Juan Luis Munoz Marin Intl Airport?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from Portland according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 7 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from Portland to San Juan Luis Munoz Marin Intl Airport
Cheap Portland to San Juan Luis Munoz Marin Intl Airport (PDX to SJU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to San Juan Luis Munoz Marin Intl Airport
How far is Portland to San Juan Luis Munoz Marin Intl by plane?
There are 3713.4 mi between Portland and San Juan Luis Munoz Marin Intl. A reasonable flight in good conditions will take 11h 20m.
When did momondo last update prices for flights from Portland Airport to San Juan Luis Munoz Marin Intl Airport?
Prices for flights from Portland Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.
How many operators does momondo search for flights from Portland Airport to San Juan Luis Munoz Marin Intl Airport?
As of July 2025, there are 7 operators available to choose from for flights from Portland Airport to San Juan Luis Munoz Marin Intl Airport.
How old do you have to be to fly from Portland Airport to San Juan Luis Munoz Marin Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to San Juan Luis Munoz Marin Intl Airport.
What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?
The travel and health documents required for your trip to San Juan Luis Munoz Marin Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Portland to San Juan Luis Munoz Marin Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Portland to San Juan Luis Munoz Marin Intl Airport is American Airlines, representing 45% of all bookings. The subsequent popular airlines are Delta at 22%, United Airlines at 17%, and Spirit Airlines at 7%.
Best airlines flying from Portland to San Juan Luis Munoz Marin Intl Airport
Compare and see reviews for airlines that fly from Portland to San Juan Luis Munoz Marin Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $185 | Free Cancellation | Rating 7.3 2,910 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 6.3 8,064 reviews | |||
| PriceFrom $306 | Free Cancellation | Rating 7.4 8,843 reviews | |||
| PriceFrom $328 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $369 | Free Cancellation | Rating 8.0 7,958 reviews | |||
| PriceFrom $450 | Free Cancellation | Rating 8.0 4,258 reviews | |||
| PriceFrom $475 | Free Cancellation | Rating 6.9 336 reviews |
Traveling to a place near San Juan?
Book flights to San Juan if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Portland to San Juan?
Finding the right flight to San Juan from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.
Can I find flights from Portland to San Juan with flexible booking policies on momondo?
Flights from Portland to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Portland to San Juan?
Once you have performed a search for Portland to San Juan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Portland to San Juan right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to San Juan from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.