$201+ Cheap flights from Seattle (SEA) to Luis Munoz Marin Intl (SJU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Nov 23 — Nov 301
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Luis Munoz Marin Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Luis Munoz Marin Intl
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One-way
Cheapest flights from Seattle to Luis Munoz Marin IntlExplore the most affordable flight options available from Seattle to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
Explore the most affordable flight options available from Seattle to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:58 pm -
2 stops29h 15m
Fri 12/112:24 pm -
2 stops29h 19m
Deal found 10/21![Frontier logo]()
$433
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:30 pm -
2 stops27h 28m
Tue 12/85:01 am -
3 stops38h 42m
Deal found 10/21![Multiple Airlines logo]()
$490
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:37 pm -
2 stops16h 23m
Fri 12/42:36 pm -
2 stops29h 07m
Deal found 10/22![Frontier logo]()
$495
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:39 pm -
1 stop17h 35m
Fri 11/133:55 pm -
2 stops27h 17m
Deal found 10/20![Multiple Airlines logo]()
$517
This WAYA deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:29 pm -
1 stop19h 08m
Tue 12/86:25 am -
1 stop19h 28m
Deal found 10/19![Multiple Airlines logo]()
$519
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:13 pm -
2 stops23h 46m
Tue 11/174:52 pm -
2 stops26h 20m
Deal found 10/22![Frontier logo]()
$535
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:27 pm -
2 stops30h 19m
Fri 11/133:55 pm -
2 stops27h 17m
Deal found 10/20![Frontier logo]()
$537
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1211:39 pm -
2 stops12h 03m
Thu 12/176:00 am -
2 stops12h 57m
Deal found 10/22![American Airlines logo]()
$538
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:58 pm -
3 stops26h 28m
Wed 12/163:54 am -
2 stops22h 55m
Deal found 10/22![Multiple Airlines logo]()
$540
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/144:58 pm -
3 stops29h 15m
Thu 12/245:20 pm -
1 stop20h 00m
Deal found 10/20![Multiple Airlines logo]()
$547
This WAYA deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/119:35 pm -
1 stop23h 44m
Fri 12/1810:26 pm -
1 stop14h 34m
Deal found 10/21![Multiple Airlines logo]()
$549
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:30 pm -
2 stops27h 28m
Sat 12/122:49 am -
3 stops40h 54m
Deal found 10/22![Multiple Airlines logo]()
$550
Best flights from Seattle to Luis Munoz Marin IntlDiscover carefully curated flight deals from Seattle to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
Discover carefully curated flight deals from Seattle to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/138:08 am -
1 stop10h 14m
Wed 1/271:00 pm -
1 stop12h 41m
Deal found 10/22![United Airlines logo]()
$582
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/46:35 pm -
2 stops13h 05m
Tue 1/1912:15 pm -
2 stops13h 35m
Deal found 10/23![Southwest logo]()
$582
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:55 pm -
2 stops15h 10m
Tue 11/38:15 am -
2 stops14h 47m
Deal found 10/24![Delta logo]()
$702
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/42:41 pm -
1 stop10h 40m
Mon 1/182:05 am -
1 stop13h 01m
Deal found 10/23![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/510:50 pm -
1 stop10h 42m
Mon 1/182:05 am -
1 stop13h 01m
Deal found 10/23![United Airlines logo]()
$586
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:55 pm -
2 stops11h 55m
Mon 11/912:40 pm -
2 stops16h 05m
Deal found 10/21![Southwest logo]()
$727
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:05 am -
1 stop10h 19m
Thu 11/121:00 pm -
2 stops14h 15m
Deal found 10/21![United Airlines logo]()
$648
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:20 pm -
3 stops21h 12m
Thu 11/192:21 pm -
1 stop12h 54m
Deal found 10/20![United Airlines logo]()
$694
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/195:00 am -
2 stops15h 36m
Sat 2/138:05 am -
3 stops16h 43m
Deal found 10/22![United Airlines logo]()
$722
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
1 stop10h 00m
Sat 12/58:05 am -
2 stops14h 19m
Deal found 10/19![United Airlines logo]()
$727
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:09 am -
1 stop10h 13m
Mon 12/72:05 am -
2 stops18h 13m
Deal found 10/22![United Airlines logo]()
$748
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:09 am -
1 stop10h 13m
Thu 12/103:46 pm -
1 stop11h 05m
Deal found 10/22![United Airlines logo]()
$748
Last-minute flights from Seattle to Luis Munoz Marin IntlDiscover last-minute flight deals from Seattle to Luis Munoz Marin Intl. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Luis Munoz Marin Intl. Data last updated October 24, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:35 pm -
2 stops13h 05m
Thu 11/129:40 pm -
2 stops18h 20m
Deal found 10/21![Southwest logo]()
$581
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:39 pm -
1 stop17h 35m
Fri 11/133:55 pm -
2 stops27h 17m
Deal found 10/20![Multiple Airlines logo]()
$517
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:27 pm -
2 stops30h 19m
Fri 11/133:55 pm -
2 stops27h 17m
Deal found 10/20![Frontier logo]()
$537
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:39 pm -
1 stop17h 35m
Tue 11/108:45 am -
3 stops34h 27m
Deal found 10/22![Multiple Airlines logo]()
$579
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:13 pm -
2 stops23h 46m
Tue 11/174:52 pm -
2 stops26h 20m
Deal found 10/22![Frontier logo]()
$535
This Mytrip deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:13 pm -
2 stops23h 46m
Mon 11/233:57 pm -
2 stops24h 40m
Deal found 10/19![Frontier logo]()
$562
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:30 am -
2 stops13h 30m
Wed 11/1810:45 am -
2 stops15h 35m
Deal found 10/21![Southwest logo]()
$578
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/169:13 pm -
2 stops23h 46m
Tue 12/89:02 pm -
2 stops22h 41m
Deal found 10/20![Frontier logo]()
$559
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:37 pm -
2 stops16h 23m
Fri 12/42:36 pm -
2 stops29h 07m
Deal found 10/22![Frontier logo]()
$495
One-way flights from Seattle to Luis Munoz Marin IntlSearch for one-way flight options from Seattle to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
Search for one-way flight options from Seattle to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:27 pm -
2 stops40h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:27 pm -
2 stops40h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$238
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/169:13 pm -
2 stops23h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:27 pm -
2 stops51h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:13 pm -
2 stops23h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/154:29 pm -
2 stops40h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/164:29 pm -
2 stops34h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:09 pm -
2 stops25h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Frontier logo]()
$259
This eDestinos deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:06 am -
3 stops36h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:13 pm -
2 stops48h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:27 pm -
2 stops40h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$272
Find flight deals from Seattle to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $433 (Mytrip) |
One-way from | $201 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $554 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Luis Munoz Marin Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 24, 2026.
Use the filters below to find and compare flights from Seattle to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Thu 1/7
9:10 am-12:35 am
2 stops11h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$278
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Wed 11/11
10:52 pm-4:56 pm
1 stop14h 04m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$297
Quickest round-trip
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 11/14
10:52 pm-12:55 pm
1 stop10h 03m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$297
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Thu 1/21
6:00 am-11:50 pm
1 stop13h 50m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$320
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Thu 12/31
11:59 pm-3:48 pm
2 stops11h 49m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$320
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Tue 1/19
7:00 am-2:40 pm
3 stops27h 40m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$331
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Tue 10/27
6:15 am-9:55 pm
2 stops12h 40m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$351
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 11/14
12:20 pm-1:15 pm
3 stops20h 55m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$357
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Sat 1/2
5:30 pm-9:50 am
2 stops12h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$366
SeattleSan Juan
SEA Seattle/Tacoma Intl - SJU San Juan Luis Munoz Marin Intl
SEASJU
Seattle/Tacoma Intl
Fri 11/20
6:30 pm-4:14 pm
1 stop17h 44m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$374
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Seattle to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Luis Munoz Marin Intl in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Seattle with our price prediction graph.
SEA-SJU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to San Juan Luis Munoz Marin Intl Airport
How far ahead should I book a flight from Seattle to San Juan Luis Munoz Marin Intl Airport?
Booking 60 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.
What is the cheapest month to book a flight from Seattle to San Juan Luis Munoz Marin Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Seattle to San Juan Luis Munoz Marin Intl Airport (average of $491). Flying from Seattle to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $868). 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.
How much does it cost to fly round-trip from Seattle to San Juan Luis Munoz Marin Intl Airport?
Airfare is below average for this route at the moment.
Seattle to San Juan Luis Munoz Marin Intl Airport flights typically cost between $494 and $724 in December.The cheapest round-trip price found within the last 5 days was $433 on Frontier (Dec 7-Dec 11).
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated October 24, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andDelta from Seattle to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.0
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Crew
8.5
Entertainment
7.0
Comfort
7.8
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Related info for your journey
Find useful and relevant information for your journey from Seattle to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsLuquillo
Rio Grande
Fajardo
Dorado
Humacao
Bayamón
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Other flights to Luis Munoz Marin Intl
Explore flights to Luis Munoz Marin Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 24, 2026.
Seattle and Luis Munoz Marin Intl flights
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Top 7 airlines flying from Seattle to Luis Munoz Marin Intl
Discover the top 7 airlines that operate flights from Seattle to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$324 | Average$645 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$342 | Average$668 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$363 | Average$574 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$366 | Average$604 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$785 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$454 | Average$589 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$600 | FlexibilityNo cancel fee | On-time75% |