Cheap flights from Seattle to San Juan

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Seattle (SEA)
San Juan (SJU)
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How to find the cheapest flight from
Seattle (SEA) to San Juan (SJU)

All the information you need to plan the best SEA to SJU flight in 2021: compare Seattle to San Juan flight prices with the expected peak season, weather and rainfall in San Juan.
SEA - PR1
Price
C$ 474 - C$ 998
PR1
Temperature
28 - 32 °C
PR1
Rainfall
33 - 147 mm

Popular in

December

High demand for flights, 42% potential price rise

Cheapest in

September

Best time to find cheap flights, 18% potential price drop

Average price

C$ 518

Average for round-trip flights in May 2021

Round-trip from

C$ 474

From Seattle to San Juan

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to San Juan?

Flights from Seattle to San Juan are generally found to be more expensive on Wednesday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Juan.

What is the cheapest month to fly from Seattle to San Juan?

September is one of the best times of the year to fly to San Juan from Seattle. Prices for September average C$ 525 per person but you can even find prices for as low as C$ 304. The most expensive prices can be found in the month of December. Opting for a September flight can save you 36% on your journey compared to booking in September

When is the cheapest time to fly from Seattle to San Juan (SEA - PR1)?

One of the essential ways to save on airfare from Seattle to San Juan is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 27% on airfare.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">San Juan</span> flights.

Flight FAQs

From Seattle to San Juan

What airport do you fly from for flights from Seattle to San Juan?

Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to San Juan. 5 airlines have flights from Seattle/Tacoma Intl to San Juan on a regular basis. Booking flights from Seattle/Tacoma Intl to San Juan should not be difficult; the airport handles an average of 0 outbound flights to San Juan per day.

Is Seattle weather warmer or cooler than San Juan?

Our data indicates that the weather will be 32 °C on average in the month of June. The temperature in San Juan is typically hotter than in Seattle. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

Destination information for San Juan

Things to know before you go - useful duration and weather info for your trip from Seattle to San Juan.
Today's exchange rate
C$ 1 = $0.83
Average temperature for May in San Juan
31.0 °C
Avg rainfall for May in San Juan
92.0 mm

Airports servicing Seattle

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 3 airlines flying from Seattle to San Juan

The chart below displays the airlines Cheapflights users travelling from Seattle to San Juan choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
C$ 205 C$ 381 No cancel fee 69%
Search United Airlines flights
JetBlue
C$ 221 C$ 474 No cancel fee 62%
Search JetBlue flights
American Airlines
C$ 226 C$ 483 No cancel fee 71%
Search American Airlines flights
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