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Cheap flights from Seattle to San Juan from $160

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:42 pm - 2:45 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
20h 03m1 stop Dallas/Fort Worth
American Airlines Logo
3:41 pm - 10:02 amSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
21h 21m1 stop Charlotte Douglas
$320American Airlines
Fri, Sep 11 - Sat, Sep 19
American Airlines Logo
8:24 am - 10:57 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
11h 33m1 stop Philadelphia
American Airlines Logo
2:44 pm - 10:00 pmSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
11h 16m1 stop Philadelphia
$320American Airlines
Sun, Oct 25 - Wed, Nov 4
JetBlue Logo
10:50 pm - 5:20 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
14h 30m1 stop New York John F Kennedy Intl
JetBlue Logo
5:23 pm - 11:59 pmSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
10h 36m1 stop Minneapolis St Paul
$427JetBlue
Mon, Nov 23 - Sat, Dec 5
JetBlue Logo
9:55 pm - 1:05 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
11h 10m1 stop New York John F Kennedy Intl
JetBlue Logo
3:15 pm - 10:05 pmSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
10h 50m1 stop Detroit Metropolitan Wayne County
$427JetBlue
Sun, Jan 17 - Wed, Jan 20
Frontier Logo
10:57 am - 5:43 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
27h 46m2 stops Las Vegas Harry Reid Intl Orlando
Frontier Logo
2:45 pm - 9:42 amSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
21h 57m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$443Frontier
Tue, Sep 15 - Tue, Sep 22
Frontier Logo
10:57 am - 3:19 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
25h 22m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
Frontier Logo
6:30 am - 9:42 amSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
30h 12m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$469Frontier
Tue, Sep 15 - Wed, Sep 23
Southwest Logo
6:55 am - 10:00 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
11h 05m2 stops Denver Intl Tampa
Southwest Logo
12:15 pm - 9:50 pmSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
13h 35m2 stops Orlando Sacramento Intl
$496Southwest
Mon, Feb 1 - Wed, Feb 10
Southwest Logo
10:30 pm - 12:50 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
11h 20m1 stop Baltimore/Washington
Southwest Logo
6:30 am - 5:35 pmSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
14h 05m2 stops Orlando Denver Intl
$496Southwest
Tue, Sep 22 - Mon, Sep 28
United Airlines Logo
8:00 am - 10:22 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
10h 22m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
1:00 pm - 9:05 pmSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
12h 05m1 stop Newark
$510United Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
8:00 am - 10:22 pmSEA  Seattle/Tacoma Intl-SJU San Juan Luis Munoz Marin Intl
10h 22m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
1:00 pm - 9:05 pmSJU  San Juan Luis Munoz Marin Intl-SEA Seattle/Tacoma Intl
12h 05m1 stop Newark
$510United Airlines
Mon, Feb 1 - Tue, Feb 9

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American Airlines flights from Seattle to San Juan

Our best American Airlines deals on Seattle to San Juan flight tickets
American Airlines
Oct 25
SEA6:20 pmSeattle/Tacoma Intl
12h 26m
2 stops
SJU9:46 amSan Juan Luis Munoz Marin Intl
Nov 4
SJU6:28 amSan Juan Luis Munoz Marin Intl
13h 16m
2 stops
SEA3:44 pmSeattle/Tacoma Intl
$320
American Airlines
Sep 9
SEA5:02 pmSeattle/Tacoma Intl
13h 22m
2 stops
SJU9:24 amSan Juan Luis Munoz Marin Intl
Sep 18
SJU2:22 pmSan Juan Luis Munoz Marin Intl
11h 35m
1 stop
SEA10:57 pmSeattle/Tacoma Intl
$325
American Airlines
Oct 5
SEA11:59 pmSeattle/Tacoma Intl
11h 04m
1 stop
SJU2:03 pmSan Juan Luis Munoz Marin Intl
Oct 21
SJU2:27 pmSan Juan Luis Munoz Marin Intl
11h 32m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$412

Frontier flights from Seattle to San Juan

Our best Frontier deals on Seattle to San Juan flight tickets
Frontier
Sep 15
SEA10:57 amSeattle/Tacoma Intl
27h 46m
2 stops
SJU5:43 pmSan Juan Luis Munoz Marin Intl
Sep 22
SJU2:45 pmSan Juan Luis Munoz Marin Intl
21h 57m
2 stops
SEA9:42 amSeattle/Tacoma Intl
$443
Frontier
Sep 15
SEA10:57 amSeattle/Tacoma Intl
25h 22m
2 stops
SJU3:19 pmSan Juan Luis Munoz Marin Intl
Sep 23
SJU6:30 amSan Juan Luis Munoz Marin Intl
30h 12m
2 stops
SEA9:42 amSeattle/Tacoma Intl
$469
Frontier
Oct 22
SEA4:27 pmSeattle/Tacoma Intl
45h 39m
2 stops
SJU5:06 pmSan Juan Luis Munoz Marin Intl
Oct 26
SJU5:11 pmSan Juan Luis Munoz Marin Intl
28h 15m
2 stops
SEA6:26 pmSeattle/Tacoma Intl
$501

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Fri 9/11

3:42 pm-2:45 pm

1 stop20h 03m

San Juan Luis Munoz Marin Intl

Sat 9/19

3:41 pm-10:02 am

1 stop21h 21m

$320

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Sun 10/25

8:24 am-10:57 pm

1 stop11h 33m

San Juan Luis Munoz Marin Intl

Wed 11/4

2:44 pm-10:00 pm

1 stop11h 16m

$320

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Mon 11/23

10:50 pm-5:20 pm

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Sat 12/5

5:23 pm-11:59 pm

1 stop10h 36m

$427
Quickest round-trip

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Sun 1/17

9:55 pm-1:05 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Wed 1/20

3:15 pm-10:05 pm

1 stop10h 50m

$427

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Tue 9/15

10:57 am-5:43 pm

2 stops27h 46m

San Juan Luis Munoz Marin Intl

Tue 9/22

2:45 pm-9:42 am

2 stops21h 57m

$443

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Tue 9/15

10:57 am-3:19 pm

2 stops25h 22m

San Juan Luis Munoz Marin Intl

Wed 9/23

6:30 am-9:42 am

2 stops30h 12m

$469

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Mon 2/1

6:55 am-10:00 pm

2 stops11h 05m

San Juan Luis Munoz Marin Intl

Wed 2/10

12:15 pm-9:50 pm

2 stops13h 35m

$496

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Tue 9/22

10:30 pm-12:50 pm

1 stop11h 20m

San Juan Luis Munoz Marin Intl

Mon 9/28

6:30 am-5:35 pm

2 stops14h 05m

$496

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Wed 12/2

8:00 am-10:22 pm

1 stop10h 22m

San Juan Luis Munoz Marin Intl

Wed 12/9

1:00 pm-9:05 pm

1 stop12h 05m

$510

SeattleSan Juan

SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl

SEASJU

Seattle/Tacoma Intl

Mon 2/1

8:00 am-10:22 pm

1 stop10h 22m

San Juan Luis Munoz Marin Intl

Tue 2/9

1:00 pm-9:05 pm

1 stop12h 05m

$510

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to San Juan from

How to get the cheapest flight ticket from Seattle to San Juan

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 typical price of a round-trip flight between Seattle and San Juan?

Prices are currently low for flights on this route.

Typical prices usually range from $460 to $616.
The lowest price recently found on this route was $320.

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in October, then September is your next best option. Flight prices from Seattle to San Juan during September average around $484.

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

You are more likely to see cheaper flights to San Juan from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $584 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Seattle for as low as $509 on momondo.

Cheap Seattle to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to San Juan

Best Price Found

$160

Fastest flight time

10h 15m

Direct flights

None
The best one-way flight to San Juan from Seattle in the past 72 hours is $160. The best round-trip flight deal from Seattle to San Juan found on momondo in the last 72 hours is $320.
The fastest flight from Seattle to San Juan takes 10h 15m
There are no direct flights from Seattle to San Juan. There are no popular flight routes from Seattle to San Juan.
Search flight deals

Frequently asked questions about flying from Seattle to San Juan

  • How far is Seattle/Tacoma Intl to San Juan by plane?

    Seattle/Tacoma Intl and San Juan are 3720.7 mi apart from one another. By plane, this route typically takes 10h 15m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Juan?

    Prices for flights from Seattle/Tacoma Intl Airport to San Juan were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Juan?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Juan?

    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.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents you'll need for your trip to San Juan 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seattle to San Juan

Compare and see reviews for airlines that fly from Seattle to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $175Free CancellationRating
5.6
2,661 reviews
Search Frontier flights
JetBluePriceFrom $327Free CancellationRating
7.1
3,040 reviews
Search JetBlue flights
DeltaPriceFrom $342Free CancellationRating
7.8
8,510 reviews
Search Delta flights
United AirlinesPriceFrom $363Free CancellationRating
7.4
10,103 reviews
Search United Airlines flights
American AirlinesPriceFrom $373Free CancellationRating
7.1
11,978 reviews
Search American Airlines flights
Sun Country AirPriceFrom $454Free CancellationRating
6.7
318 reviews
Search Sun Country Air flights
SouthwestPriceFrom $454Free CancellationRating
8.0
4,215 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $587Free CancellationRating
7.9
12,823 reviews
Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to San Juan?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to San Juan. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to San Juan with flexible booking policies on momondo?

All flight searches from Seattle to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to San Juan?

momondo helps you find the best flight between Seattle and San Juan 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 San Juan right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Juan 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.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport