Round-trip from | $362 (Trip.com) |
---|---|
One-way from | $146 (CheapOair) |
Popular in | December |
Cheapest in | January |
Average price | $705 |
Fly from
Fly to
Route
Depart
Return
Price
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Tue 9/23
11:59 pm-4:43 pm
1 stop13h 44m
San Juan Luis Munoz Marin Intl
Tue 9/30
1:25 pm-10:20 pm
1 stop11h 55m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 9/22
8:18 pm-6:14 pm
1 stop18h 56m
San Juan Luis Munoz Marin Intl
Wed 9/24
6:10 am-11:59 pm
1 stop20h 49m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 9/22
11:54 pm-2:44 pm
1 stop11h 50m
San Juan Luis Munoz Marin Intl
Sun 9/28
1:05 am-10:47 am
1 stop12h 42m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 10/24
6:00 am-9:59 pm
1 stop12h 59m
San Juan Luis Munoz Marin Intl
Fri 10/31
7:15 am-4:27 pm
1 stop12h 12m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 8/8
3:11 pm-10:13 am
2 stops16h 02m
San Juan Luis Munoz Marin Intl
Sat 8/16
8:15 am-11:42 pm
2 stops18h 27m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 9/17
5:35 am-10:30 pm
2 stops13h 55m
San Juan Luis Munoz Marin Intl
Wed 9/24
11:50 am-8:55 pm
2 stops12h 05m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 8/22
11:55 pm-11:57 pm
3 stops21h 02m
San Juan Luis Munoz Marin Intl
Sat 8/30
10:10 am-8:28 am
3 stops25h 18m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 8/11
5:30 pm-3:30 pm
2 stops19h 00m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 10/3
11:59 pm-1:47 pm
1 stop10h 48m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 10/20
12:34 am-3:55 pm
2 stops12h 21m
The best time to book flights from Seattle to San Juan is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, September is the cheapest month in which you can book a flight from Seattle to San Juan (average of $254). Flying from Seattle to San Juan in June is currently the most expensive (average of $339). 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.
It’s typically best to fly out from Seattle to San Juan at noon. Doing so could potentially save you 20% on the flight price compared to flying in the evening, which is usually more expensive.
Travelers seeking maximum savings on their Seattle to San Juan flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Comfort
Boarding
Overall
Entertainment
Food
Crew
Reviews
Jonathan,Jul 2025
SEA - BOS
Comfort
Boarding
Overall
Entertainment
Food
Crew
Reviews
Jonathan,Jul 2025
SEA - BOS
Comfort
Boarding
Overall
Entertainment
Food
Crew
Reviews
Jonathan,Jul 2025
SEA - BOS
Comfort
Boarding
Overall
Entertainment
Food
Crew
Reviews
Jonathan,Jul 2025
SEA - BOS
Comfort
Boarding
Overall
Entertainment
Food
Crew
Reviews
Jonathan,Jul 2025
SEA - BOS
Comfort
Boarding
Overall
Entertainment
Food
Crew
Reviews
Jonathan,Jul 2025
SEA - BOS
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