
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $363 (Delta) |
One-way from | $123 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $769 |
Fly from
Fly to
Route
Depart
Return
Price
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sat 2/28
9:55 pm-4:50 pm
1 stop14h 55m
San Juan Luis Munoz Marin Intl
Thu 3/5
2:16 pm-10:22 pm
1 stop12h 06m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Tue 3/3
7:10 am-11:56 pm
1 stop12h 46m
San Juan Luis Munoz Marin Intl
Thu 3/5
2:16 pm-10:22 pm
1 stop12h 06m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 2/26
6:05 am-11:58 pm
1 stop13h 53m
San Juan Luis Munoz Marin Intl
Thu 3/5
2:16 pm-10:22 pm
1 stop12h 06m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 2/23
7:10 am-11:56 pm
1 stop12h 46m
San Juan Luis Munoz Marin Intl
Thu 3/5
2:16 pm-10:22 pm
1 stop12h 06m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 1/30
6:05 am-11:10 pm
2 stops13h 05m
San Juan Luis Munoz Marin Intl
Wed 2/4
10:20 am-9:50 pm
2 stops15h 30m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sat 2/28
9:55 pm-4:50 pm
1 stop14h 55m
San Juan Luis Munoz Marin Intl
Wed 3/4
6:15 am-2:18 pm
1 stop12h 03m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sun 3/1
6:05 am-11:58 pm
1 stop13h 53m
San Juan Luis Munoz Marin Intl
Thu 3/5
6:15 am-12:09 am
2 stops21h 54m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 3/2
6:05 am-9:12 pm
1 stop11h 07m
San Juan Luis Munoz Marin Intl
Wed 3/4
6:15 am-2:18 pm
1 stop12h 03m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 3/2
7:00 am-9:00 pm
1 stop10h 00m
San Juan Luis Munoz Marin Intl
Mon 3/2
2:05 am-11:14 am
1 stop13h 09m
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 1/8
10:19 am-6:34 am
2 stops16h 15m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, March is the cheapest month in which you can book a flight from Seattle to San Juan Luis Munoz Marin Intl Airport (average of $311). Flying from Seattle to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of $477). 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 Luis Munoz Marin Intl Airport at noon. Doing so could potentially save you 19% 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 Luis Munoz Marin Intl Airport 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.
Houston (IAH) – chosen by Cheapflights users on 50% of 1-stop itineraries from Seattle to San Juan Luis Munoz Marin Intl Airport on Cheapflights.
Houston (IAH) is the most affordable 1-stop option, with an average round-trip price of $748.
Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 10h 28m.
Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 1h 22m.
Comfort
Overall
Crew
Boarding
Food
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Overall
Crew
Boarding
Food
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Overall
Crew
Boarding
Food
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Overall
Crew
Boarding
Food
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Overall
Crew
Boarding
Food
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Overall
Crew
Boarding
Food
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$702 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$214 | Average$341 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$327 | Average$550 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$357 | Average$630 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$362 | Average$575 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$368 | Average$574 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$521 | Average$695 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$544 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$678 | Average$880 | FlexibilityNo cancel fee | On-time75% |