San Juan

Cheap flights from Seattle (SEA) to San Juan (undefined)

How to find the cheapest flight from Seattle to San Juan

All the information you need to plan the best SEA to PR1 flight in 2022: compare Seattle to San Juan flight prices with the expected peak season, weather and rainfall in San Juan.

SEA - PR1

Price

$390 - $822

PR1

Temperature

77 - 82.4 °F

PR1

Precipitation

2.2 - 6.1 inches

Popular in

December

High demand for flights, 42% potential price rise

Cheapest in

September

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

Round-trip from

$390

From Seattle/Tacoma Intl to San Juan

One-way from

$119

One-way flight from Seattle/Tacoma Intl to San Juan

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

Travelers have found it’s best to book a flight 53 days in advance to save up to 25% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to San Juan 1-2 weeks in advance for as low as $485, or $569 for flights within the next 24 hours.

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

September can be a great time to fly to San Juan from Seattle with a flight ticket averaging about $474. Cheapflights users have found deals in the month of September for as cheap as $266. The most expensive prices can be found in the month of December.

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.

Cheap flights from Seattle to San Juan in January, February 2022

The best prices found for SEA to San Juan flights for January, February
Feb 23 - Mar 1
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

19h 24m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

2 stops

20h 34m
$242

Spirit Airlines

View Deal

Deal found 1/23/22

Feb 10 - Feb 23
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

20h 25m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 51m
$243

Multiple Airlines

View Deal

Deal found 1/23/22

Feb 26 - Mar 4
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

16h 25m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

2 stops

17h 59m
$245

Spirit Airlines

View Deal

Deal found 1/23/22

Seattle to San Juan 2022 flight deals

Cheap flights to San Juan from Seattle found for this year
Mar 15 - Mar 21
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

34h 29m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

2 stops

21h 08m
$213

Spirit Airlines

View Deal

Deal found 1/24/22

Mar 15 - Mar 21
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

3 stops

22h 09m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

2 stops

21h 08m
$220

Spirit Airlines

View Deal

Deal found 1/24/22

Mar 1 - Mar 14
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

22h 04m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

2 stops

21h 08m
$228

Spirit Airlines

View Deal

Deal found 1/25/22

Last minute flights from Seattle to San Juan

Late deals on return flights to San Juan from Seattle, departing today and this week
Feb 3 - Feb 10
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

33h 25m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

3 stops

22h 29m
$265

Spirit Airlines

View Deal

Deal found 1/22/22

Feb 3 - Feb 10
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

33h 25m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

2 stops

29h 34m
$266

Spirit Airlines

View Deal

Deal found 1/22/22

Jan 31 - Feb 15
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

22h 28m
SJU

San Juan Luis Munoz Marin Intl

SEA

Seattle/Tacoma Intl

2 stops

24h 26m
$272

Multiple Airlines

View Deal

Deal found 1/23/22

One-way flights to San Juan from Seattle

The cheapest one-way flights from Seattle to San Juan
Apr 25
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

38h 18m
$106

Frontier

View Deal

Deal found 1/22/22

Apr 25
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

38h 18m
$112

Frontier

View Deal

Deal found 1/23/22

Feb 5
SEA

Seattle/Tacoma Intl

SJU

San Juan Luis Munoz Marin Intl

2 stops

18h 47m
$115

Multiple Airlines

View Deal

Deal found 1/23/22

Related info for your journey

Useful info, stats and facts about Seattle to San Juan flights.

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

Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to San Juan from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 8 different airlines.

Which airlines flying from Seattle/Tacoma Intl to San Juan have flexible cancellations due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl to San Juan have new flexible policies in place due to COVID-19. American Airlines, United Airlines, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from Seattle to San Juan for under $300 on Cheapflights?

Yes, there are multiple flights from Seattle to San Juan for under $300. The cheapest flight booked recently is on Spirit Airlines for just $213, but on average you can expect to pay $242.

Are there last-minute flights available from Seattle to San Juan for under $300?

There are currently 20+ open flights from Seattle to San Juan within the next 7 days for less than $300.

What are the cheapest airlines flying from Seattle to San Juan round-trip?

Our cheapest airline available from Seattle to San Juan is Spirit Airlines. Our recent data shows that you can find tickets from as low as $213 on this airline. An additional option worth looking into is Frontier, starting at $267. Spirit Airlines is currently priced 55% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Seattle to San Juan one-way?

$106 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and JetBlue, with prices starting from $116 and $119, respectively.

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

Before booking your flight from Seattle to San Juan check out the most popular airlines for this route: Major Airline, American Airlines or Alaska Airlines.

What are the cheapest flights from Seattle to San Juan?

The cheapest flight price from Seattle to San Juan is $142. On average you can expect to pay $661. The most popular route, (Seattle/Tacoma Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $238.

Can I fly to San Juan from Seattle/Tacoma Intl right now?

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 for RT-PCR (NAAT) and 24 Antigen (quick-test) 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.


Can I fly back to Seattle/Tacoma Intl 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) or Antigen (quick-test) test taken 24 hours before departing to Seattle/Tacoma Intl.

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

Alternative routes for Seattle to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Poncefrom $549 pp

Top 7 airlines flying from Seattle to San Juan

The chart below displays the airlines Cheapflights users traveling from Seattle to San Juan choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
JetBlue
Cheapest$158
Average$320
FlexibilityNo cancel fee
On-time62%
COVID-19 safety
Delta
Cheapest$181
Average$649
FlexibilityNo cancel fee
On-timeN/A
COVID-19 safety
United Airlines
Cheapest$203
Average$530
FlexibilityNo cancel fee
On-time69%
COVID-19 safety
American Airlines
Cheapest$212
Average$534
FlexibilityNo cancel fee
On-time71%
COVID-19 safety
Sun Country Air
Cheapest$226
Average$491
FlexibilityNo cancel fee
On-time83%
COVID-19 safety
Spirit Airlines
Cheapest$248
Average$488
FlexibilityNo cancel fee
On-time65%
COVID-19 safety
Alaska Airlines
Cheapest$284
Average$1,463
FlexibilityNo cancel fee
On-time75%
COVID-19 safety