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$ 390 - C$ 822
PR1
Temperature
25 - 28 °C
PR1
Precipitation
55 - 156 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$ 510

Average for round-trip flights in October 2021

Round-trip from

C$ 482

From Seattle/Tacoma Intl to San Juan

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Seattle to San Juan (SEA - PR1)?

When flying from Seattle to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The best pricing can be found in the month of September. Prices to San Juan from Seattle average C$ 586. You can even find prices in September for less than C$ 586, as users have found deals to San Juan from as low as C$ 329. The month of December appears to be one of the more expensive times to travel to San Juan from Seattle. Flying in the targeted month can save you up to 73%.

How far in advance should I book a flight from Seattle to San Juan?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 53 days in advance, which can save you up to 25% on flights from Seattle to San Juan compared to booking the week you need them. Waiting 53 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 599. For sooner than that we have options available in the next 3 days from C$ 703.

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.

What are the most popular airlines that fly from Seattle to San Juan?

When booking a flight from Seattle to San Juan, you may want to consider flying on American Airlines, JetBlue or Delta as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for San Juan, Puerto Rico

Do I need a COVID test to fly to San Juan from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to San Juan

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter San Juan.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) test taken 72 hours before departing to San Juan.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering San Juan.

Documents
Travel Declaration Form - Must be completed prior to travel to Puerto Rico.


Do I need a test to fly back to Seattle from San Juan?

Returning to Seattle/Tacoma Intl from San Juan

COVID-19 testing requirements
Visitors from San Juan must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from San Juan are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for San Juan, Puerto Rico

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 = $0.81
Average temperature for October in San Juan
31.0 °C
Avg rainfall for October in San Juan
147.0 mm

Airports servicing Seattle

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 3 airlines flying from Seattle/Tacoma Intl 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$ 254 C$ 471 No cancel fee 69%
Search United Airlines flights
JetBlue
C$ 273 C$ 586 No cancel fee 62%
Search JetBlue flights
American Airlines
C$ 280 C$ 597 No cancel fee 71%
Search American Airlines flights
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