Cheap flights from Seattle to Puerto Rico from $134
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Puerto Rico departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Fri 11/6
9:13 pm-12:59 am
2 stops23h 46m
San Juan Luis Munoz Marin Intl
Fri 11/13
3:55 pm-3:12 pm
2 stops27h 17m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Fri 11/6
6:39 pm-4:14 pm
1 stop17h 35m
San Juan Luis Munoz Marin Intl
Fri 11/13
3:55 pm-3:12 pm
2 stops27h 17m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 12/5
10:55 am-10:30 am
2 stops19h 35m
San Juan Luis Munoz Marin Intl
Wed 12/9
12:30 pm-11:30 pm
2 stops15h 00m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Tue 2/2
12:25 pm-4:36 pm
2 stops24h 11m
San Juan Luis Munoz Marin Intl
Fri 2/5
2:05 am-9:59 pm
2 stops23h 54m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 1/23
5:28 pm-6:25 pm
2 stops20h 57m
San Juan Luis Munoz Marin Intl
Tue 2/2
7:40 am-9:59 pm
2 stops18h 19m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 12/5
11:39 pm-3:42 pm
2 stops12h 03m
San Juan Luis Munoz Marin Intl
Wed 12/9
6:28 am-3:58 pm
2 stops13h 30m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 12/5
5:47 pm-4:09 pm
1 stop18h 22m
San Juan Luis Munoz Marin Intl
Wed 12/9
6:28 am-3:58 pm
2 stops13h 30m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sun 10/25
7:55 pm-1:49 pm
2 stops14h 54m
San Juan Luis Munoz Marin Intl
Wed 11/4
7:45 am-10:05 pm
2 stops18h 20m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 1/9
6:00 am-11:50 pm
1 stop13h 50m
San Juan Luis Munoz Marin Intl
Sun 1/17
6:15 am-2:38 pm
1 stop12h 23m
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Tue 11/17
6:10 am-10:25 pm
2 stops12h 15m
San Juan Luis Munoz Marin Intl
Tue 11/24
10:50 am-9:10 pm
2 stops14h 20m
See travel insights to Puerto Rico from
How to get the cheapest flight ticket from Seattle to Puerto Rico
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Puerto Rico?
If you don’t want to visit Puerto Rico in January, then you should wait until September to fly from Seattle, when ticket prices are also cheap, with an average price of $515.
How far in advance should I book a flight from Seattle to Puerto Rico?
You are more likely to see cheaper flights to Puerto Rico from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $603 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Seattle for as low as $516 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Puerto Rico?
Frontier, United Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Puerto Rico
What airlines fly to Puerto Rico?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Puerto Rico from Seattle according to our data. American Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 7 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.
Cheap Seattle to Puerto Rico flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Puerto Rico
Frequently asked questions about flying from Seattle to Puerto Rico
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Puerto Rico?
Prices for flights from Seattle/Tacoma Intl Airport to Puerto Rico were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Puerto Rico?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Puerto Rico is 7 as of October 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Puerto Rico?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The travel and health documents you'll need for your trip to Puerto Rico may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Puerto Rico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Seattle to Puerto Rico
Compare and see reviews for airlines that fly from Seattle to Puerto Rico with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $324 | Free Cancellation | Rating 7.1 3,049 reviews | |||
| PriceFrom $342 | Free Cancellation | Rating 7.8 8,645 reviews | |||
| PriceFrom $363 | Free Cancellation | Rating 7.4 10,319 reviews | |||
| PriceFrom $364 | Free Cancellation | Rating 7.0 12,145 reviews | |||
| PriceFrom $454 | Free Cancellation | Rating 6.7 310 reviews | |||
| PriceFrom $454 | Free Cancellation | Rating 7.9 4,222 reviews | |||
| PriceFrom $587 | Free Cancellation | Rating 7.9 13,037 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Puerto Rico?
Finding the right flight to Puerto Rico from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Puerto Rico quick and easy, saving you time and money.
Can I find flights from Seattle to Puerto Rico with flexible booking policies on momondo?
All flight searches from Seattle to Puerto Rico on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Seattle to Puerto Rico?
momondo helps you find the best flight between Seattle and Puerto Rico by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Seattle to Puerto Rico right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Puerto Rico from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.