$99+ Cheap flights from Missouri to Puerto Rico
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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
Dec 7 — Dec 141
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Puerto Rico 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Missouri to Puerto Rico
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Cheapest flights from Missouri to Puerto RicoExplore the most affordable flight options available from Missouri to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 7, 2026.
Explore the most affordable flight options available from Missouri to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
1 stop11h 05m
Sat 12/129:52 pm -
2 stops39h 25m
Deal found 11/3![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
1 stop11h 05m
Sat 12/123:28 am -
2 stops33h 49m
Deal found 11/3![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
1 stop11h 05m
Tue 12/155:01 am -
2 stops21h 11m
Deal found 11/3![Frontier logo]()
$225
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:02 pm -
1 stop11h 05m
Fri 12/115:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$231
This Mytrip deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
2 stops11h 56m
Fri 12/115:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/1412:02 pm -
2 stops35h 56m
Tue 12/223:53 pm -
1 stop21h 00m
Deal found 11/2![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/212:05 pm -
2 stops30h 32m
Fri 12/115:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$243
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:20 pm -
1 stop27h 09m
Sun 12/202:29 am -
1 stop10h 24m
Deal found 11/6![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:02 pm -
1 stop11h 05m
Mon 12/145:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/74:49 pm -
1 stop25h 48m
Fri 12/116:25 am -
1 stop11h 34m
Deal found 11/3![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Sun 12/66:23 pm -
2 stops28h 44m
Fri 12/116:25 am -
1 stop11h 34m
Deal found 11/3![Multiple Airlines logo]()
$303
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:30 am -
1 stop22h 07m
Sun 12/136:30 am -
1 stop29h 05m
Deal found 11/3![Frontier logo]()
$306
Best flights from Missouri to Puerto RicoDiscover carefully curated flight deals from Missouri to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 7, 2026.
Discover carefully curated flight deals from Missouri to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 7, 2026.
This Priceline deal was found by Cheapflights users on 11/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/201:20 pm -
1 stop22h 39m
Mon 11/233:47 am -
1 stop22h 12m
Deal found 11/5![Frontier logo]()
$396
This Southwest deal was found by Cheapflights users on 11/2. 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.
Tue 12/111:00 am -
1 stop8h 55m
Sat 12/125:40 am -
1 stop7h 10m
Deal found 11/2![Southwest logo]()
$426
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Fri 2/512:02 pm -
1 stop7h 52m
Tue 2/97:00 am -
1 stop9h 33m
Deal found 11/6![American Airlines logo]()
$436
This Delta deal was found by Cheapflights users on 11/7. 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.
Wed 2/311:43 am -
1 stop10h 15m
Fri 2/127:30 am -
1 stop10h 55m
Deal found 11/7![Delta logo]()
$436
This United Airlines deal was found by Cheapflights users on 11/3. 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 1/138:05 am -
2 stops13h 52m
Tue 1/191:09 am -
2 stops13h 04m
Deal found 11/3![United Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 11/3. 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.
Tue 12/111:00 am -
1 stop8h 55m
Tue 12/87:40 am -
2 stops8h 30m
Deal found 11/3![Southwest logo]()
$426
This American Airlines deal was found by Cheapflights users on 11/6. 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 2/207:03 am -
2 stops12h 25m
Sat 2/271:20 am -
1 stop17h 45m
Deal found 11/6![American Airlines logo]()
$436
This Delta deal was found by Cheapflights users on 11/6. 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.
Sun 1/105:30 am -
1 stop7h 24m
Fri 1/155:17 pm -
1 stop8h 22m
Deal found 11/6![Delta logo]()
$436
This United Airlines deal was found by Cheapflights users on 11/4. 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 1/261:15 pm -
1 stop7h 07m
Tue 2/28:05 am -
2 stops13h 23m
Deal found 11/4![United Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 11/2. 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.
Wed 12/91:05 pm -
2 stops9h 45m
Sat 12/125:40 am -
2 stops9h 10m
Deal found 11/2![Southwest logo]()
$426
This Delta deal was found by Cheapflights users on 11/3. 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.
Wed 1/137:00 am -
1 stop8h 25m
Wed 1/207:45 am -
1 stop10h 06m
Deal found 11/3![Delta logo]()
$436
This Southwest deal was found by Cheapflights users on 11/5. 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 12/77:30 pm -
1 stop12h 25m
Tue 12/82:25 pm -
1 stop8h 50m
Deal found 11/5![Southwest logo]()
$431
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/56:29 pm -
2 stops17h 08m
Sun 12/137:00 am -
1 stop17h 42m
Deal found 11/4![American Airlines logo]()
$496
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 1/303:12 pm -
2 stops13h 03m
Tue 2/22:05 am -
2 stops14h 29m
Deal found 11/2![United Airlines logo]()
$526
This Southwest deal was found by Cheapflights users on 11/5. 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.
Fri 12/47:30 pm -
1 stop12h 30m
Fri 12/114:00 pm -
2 stops10h 15m
Deal found 11/5![Southwest logo]()
$436
This Mytrip deal was found by Cheapflights users on 11/3. 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 12/266:21 pm -
2 stops18h 05m
Tue 12/292:44 pm -
2 stops22h 09m
Deal found 11/3![Frontier logo]()
$632
This United Airlines deal was found by Cheapflights users on 11/2. 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 2/47:31 am -
2 stops14h 26m
Mon 2/81:09 am -
2 stops13h 22m
Deal found 11/2![United Airlines logo]()
$526
This Southwest deal was found by Cheapflights users on 11/5. 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.
Tue 2/23:25 pm -
1 stop7h 15m
Sun 2/710:05 pm -
1 stop12h 20m
Deal found 11/5![Southwest logo]()
$436
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 3/37:44 am -
2 stops12h 41m
Sat 3/61:20 am -
1 stop11h 53m
Deal found 11/6![American Airlines logo]()
$541
This Southwest deal was found by Cheapflights users on 11/6. 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 1/112:55 pm -
2 stops7h 45m
Fri 1/155:35 am -
2 stops10h 15m
Deal found 11/6![Southwest logo]()
$436
This United Airlines deal was found by Cheapflights users on 11/2. 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 1/145:00 am -
2 stops17h 36m
Fri 1/222:05 am -
2 stops16h 15m
Deal found 11/2![United Airlines logo]()
$530
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/810:45 am -
1 stop8h 39m
Fri 12/112:52 pm -
1 stop9h 23m
Deal found 11/2![United Airlines logo]()
$536
This Southwest deal was found by Cheapflights users on 11/3. 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 12/32:35 pm -
2 stops8h 15m
Thu 12/1010:45 am -
2 stops10h 05m
Deal found 11/3![Southwest logo]()
$449
This American Airlines deal was found by Cheapflights users on 11/7. 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.
Fri 2/57:54 am -
2 stops11h 17m
Sat 3/1312:20 am -
1 stop9h 29m
Deal found 11/7![American Airlines logo]()
$629
This Delta deal was found by Cheapflights users on 11/5. 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.
Thu 1/286:01 am -
1 stop9h 24m
Fri 2/54:10 pm -
1 stop7h 30m
Deal found 11/5![Delta logo]()
$719
This United Airlines deal was found by Cheapflights users on 11/3. 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 1/2511:22 am -
2 stops11h 14m
Wed 1/272:05 am -
2 stops14h 29m
Deal found 11/3![United Airlines logo]()
$546
This Southwest deal was found by Cheapflights users on 11/6. 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.
Sat 12/510:55 am -
Nonstop4h 20m
Sun 12/139:40 pm -
1 stop13h 40m
Deal found 11/6![Southwest logo]()
$473
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/87:36 am -
2 stops14h 21m
Fri 12/111:09 am -
2 stops11h 18m
Deal found 11/6![United Airlines logo]()
$546
This Southwest deal was found by Cheapflights users on 11/3. 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.
Fri 11/2712:55 pm -
2 stops10h 05m
Fri 12/47:40 am -
2 stops8h 50m
Deal found 11/3![Southwest logo]()
$476
This United Airlines deal was found by Cheapflights users on 11/7. 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 1/1811:22 am -
2 stops10h 35m
Thu 1/211:09 am -
2 stops15h 25m
Deal found 11/7![United Airlines logo]()
$546
Last-minute flights from Missouri to Puerto RicoDiscover last-minute flight deals from Missouri to Puerto Rico. Data last updated November 7, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Puerto Rico. Data last updated November 7, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/212:05 pm -
2 stops30h 32m
Fri 12/115:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$243
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:02 pm -
1 stop11h 05m
Fri 12/115:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$231
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:30 am -
1 stop22h 07m
Sun 12/136:30 am -
1 stop29h 05m
Deal found 11/3![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Sun 12/66:23 pm -
2 stops28h 44m
Fri 12/116:25 am -
1 stop11h 34m
Deal found 11/3![Multiple Airlines logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
1 stop11h 05m
Sat 12/129:52 pm -
2 stops39h 25m
Deal found 11/3![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
1 stop11h 05m
Sat 12/123:28 am -
2 stops33h 49m
Deal found 11/3![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
1 stop11h 05m
Tue 12/155:01 am -
2 stops21h 11m
Deal found 11/3![Frontier logo]()
$225
This Mytrip deal was found by Cheapflights users on 11/3. 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 12/712:02 pm -
2 stops11h 56m
Fri 12/115:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$234
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:02 pm -
1 stop11h 05m
Mon 12/145:01 am -
1 stop8h 16m
Deal found 11/3![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/74:49 pm -
1 stop25h 48m
Fri 12/116:25 am -
1 stop11h 34m
Deal found 11/3![Multiple Airlines logo]()
$294
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:20 pm -
1 stop27h 09m
Sun 12/202:29 am -
1 stop10h 24m
Deal found 11/6![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/1412:02 pm -
2 stops35h 56m
Tue 12/223:53 pm -
1 stop21h 00m
Deal found 11/2![Frontier logo]()
$236
One-way flights from Missouri to Puerto RicoSearch for one-way flight options from Missouri to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated November 7, 2026.
Search for one-way flight options from Missouri to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated November 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/306:21 pm -
1 stop18h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 11/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:02 pm -
1 stop11h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/212:05 pm -
2 stops30h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/57:54 pm -
2 stops39h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/74:49 pm -
1 stop25h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 11/169:46 am -
1 stop27h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Multiple Airlines logo]()
$154
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/295:59 pm -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$159
This Trip.com deal was found by Cheapflights users on 11/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/307:02 pm -
2 stops30h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$165
This Frontier deal was found by Cheapflights users on 11/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/315:59 pm -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$171
This Frontier deal was found by Cheapflights users on 11/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/15:59 pm -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$172
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1410:30 am -
1 stop13h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 1/155:17 pm -
2 stops43h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$200
Find flight deals from Missouri to Puerto Rico
Keep the following information in mind while searching for Missouri to Puerto Rico flight deals. Data was last updated November 7, 2026.
Round-trip from | $212 (Kiwi.com) |
|---|---|
One-way from | $99 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $572 |
Good round-trip deal | $729 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Puerto Rico 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 November 7, 2026.
Use the filters below to find and compare flights from Missouri to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSan Juan
STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl
STLSJU
Lambert-St Louis
Fri 12/11
12:02 pm-1:07 am
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$131
St. LouisSan Juan
STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl
STLSJU
Lambert-St Louis
Fri 12/4
12:02 pm-1:07 am
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$144
Quickest round-trip
St. LouisSan Juan
STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl
STLSJU
Lambert-St Louis
Wed 12/2
6:13 pm-2:11 am
1 stop5h 58m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$159
St. LouisSan Juan
STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl
STLSJU
Lambert-St Louis
Sat 12/12
6:20 pm-1:58 pm
1 stop17h 38m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$163
St. LouisAguadilla
STL Lambert-St Louis - BQN Aguadilla Borinquen
STLBQN
Lambert-St Louis
Sat 1/30
7:02 pm-3:04 am
2 stops30h 02m
Aguadilla Borinquen
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$165
St. LouisAguadilla
STL Lambert-St Louis - BQN Aguadilla Borinquen
STLBQN
Lambert-St Louis
Fri 1/29
5:59 pm-3:04 am
1 stop7h 05m
Aguadilla Borinquen
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$168
St. LouisAguadilla
STL Lambert-St Louis - BQN Aguadilla Borinquen
STLBQN
Lambert-St Louis
Sun 1/31
5:59 pm-3:04 am
1 stop7h 05m
Aguadilla Borinquen
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$169
Kansas CitySan Juan
MCI Kansas City - SJU San Juan Luis Munoz Marin Intl
MCISJU
Kansas City
Mon 12/14
4:49 pm-1:58 am
3 stops31h 09m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$203
St. LouisSan Juan
STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl
STLSJU
Lambert-St Louis
Thu 12/10
2:00 pm-11:29 pm
3 stops31h 29m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$212
St. LouisSan Juan
STL Lambert-St Louis - SJU San Juan Luis Munoz Marin Intl
STLSJU
Lambert-St Louis
Sat 12/5
10:35 am-10:55 pm
1 stop10h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$218
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Missouri with our price prediction graph.
STL-SJU
MCI-SJU
SGF-SJU
STL-BQN
COU-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 Missouri to Puerto Rico
USMO-PR0
STL-SJU
MCI-SJU
SGF-SJU
STL-BQN
What is the cheapest month to book a flight from Missouri to Puerto Rico?
Currently, September is the cheapest month in which you can book a flight from Missouri to Puerto Rico (average of $365). Flying from Missouri to Puerto Rico in December is currently the most expensive (average of $597). 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 far ahead should I book a flight from Missouri to Puerto Rico?
The price you pay for your flight from Missouri to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Missouri to Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Puerto Rico by cabin class
Find flights from Missouri to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Puerto Rico flights
Browse other Missouri and Puerto Rico flight options. Last updated on November 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Missouri to Puerto Rico flights
Consider these flights traveling from Missouri to Puerto Rico.
Top 6 airlines flying from Missouri to Puerto Rico
Discover the top 6 airlines that operate flights from Missouri to Puerto Rico. 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 November 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$460 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$132 | Average$352 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$225 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$235 | Average$546 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$326 | Average$510 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$458 | Average$572 | FlexibilityNo cancel fee | On-time62% |