Cheap flights from Seattle to San Juan from $181
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 San Juan departing on 9/25. 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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Frontier flights from Seattle to San Juan Luis Munoz Marin Intl Airport
Our best Frontier deals on Seattle to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines flights from Seattle to San Juan Luis Munoz Marin Intl Airport
Our best American Airlines deals on Seattle to San Juan Luis Munoz Marin Intl Airport flight tickets
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How to get the cheapest flight ticket from Seattle to San Juan Luis Munoz Marin Intl Airport
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 San Juan Luis Munoz Marin Intl Airport?
If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $445.
What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $504. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $693.
What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?
The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $465. Flights in the evening are often more expensive with an average ticket price of $584.
How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?
You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Seattle when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $572 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Seattle for as low as $488 on momondo.
Can stopping save me money on Seattle to San Juan Luis Munoz Marin Intl Airport flights?
You could potentially save up to 17% on your flight if you consider stops on a Seattle to San Juan Luis Munoz Marin Intl Airport flight.
How have Seattle to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?
As of June 2025, prices for Seattle to San Juan Luis Munoz Marin Intl Airport flights are approximately 37% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to San Juan Luis Munoz Marin Intl?
Spirit Airlines, American Airlines, and JetBlue are the most popular carriers operating from Seattle/Tacoma Intl to San Juan Luis Munoz Marin Intl
What airlines fly to San Juan Luis Munoz Marin Intl Airport?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from Seattle according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 9 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to San Juan Luis Munoz Marin Intl Airport
Cheap Seattle to San Juan Luis Munoz Marin Intl Airport (SEA to SJU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to San Juan Luis Munoz Marin Intl Airport
How far is Seattle/Tacoma Intl to San Juan Luis Munoz Marin Intl by plane?
San Juan Luis Munoz Marin Intl is 3726.9 mi away from Seattle/Tacoma Intl. By plane, this route typically takes 9h 43m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Juan Luis Munoz Marin Intl Airport?
Prices for flights from Seattle/Tacoma Intl Airport to San Juan Luis Munoz Marin Intl Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Juan Luis Munoz Marin Intl Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to San Juan Luis Munoz Marin Intl Airport is 9 as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Juan Luis Munoz Marin Intl Airport?
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 San Juan Luis Munoz Marin Intl Airport.
What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?
The travel and health documents you'll need for your trip to San Juan Luis Munoz Marin Intl Airport 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 San Juan Luis Munoz Marin Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to San Juan Luis Munoz Marin Intl Airport?
Based on momondo bookings for flights between Seattle and San Juan Luis Munoz Marin Intl Airport, the leading airline is American Airlines, making up 54% of the total bookings. Other popular airlines include United Airlines with 22%, Delta with 11%, and JetBlue with 4%.
Best airlines flying from Seattle to San Juan Luis Munoz Marin Intl Airport
Compare and see reviews for airlines that fly from Seattle to San Juan Luis Munoz Marin Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $194 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $233 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $286 | Free Cancellation | Rating 7.3 2,925 reviews | |||
| PriceFrom $330 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $339 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $413 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $447 | Free Cancellation | Rating 6.9 345 reviews | |||
| PriceFrom $466 | Free Cancellation | Rating 8.0 4,287 reviews | |||
| PriceFrom $490 | Free Cancellation | Rating 8.0 10,000 reviews |
Traveling to a place near San Juan?
Book flights to San Juan if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to San Juan?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from Seattle.
Can I find flights from Seattle to San Juan with flexible booking policies on momondo?
momondo does allow users to show only those flights to San Juan from Seattle which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Seattle to San Juan?
momondo provides multiple filters to help you find the best flight to San Juan from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to San Juan right now. Can momondo alert me if prices change?
If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from Seattle and alert you when they change.