$175+ Cheap flights from Portland (PDX) to South Dakota
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — FSD
Sep 15 — Sep 221
Round-trip
1 adult, Economy
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Find cheap flights from Portland to South Dakota with Cheapflights
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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 Portland to South Dakota
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Cheapest flights from Portland to South DakotaExplore the most affordable flight options available from Portland to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
Explore the most affordable flight options available from Portland to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
This CheapOair deal was found by Cheapflights users on 8/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:34 pm -
1 stop28h 02m
Sat 10/177:31 pm -
1 stop23h 04m
Deal found 8/11![Frontier logo]()
$274
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:20 pm -
1 stop5h 41m
Mon 9/78:56 pm -
1 stop22h 15m
Deal found 8/14![Frontier logo]()
$275
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:20 pm -
1 stop5h 41m
Mon 8/318:56 pm -
1 stop22h 15m
Deal found 8/12![Frontier logo]()
$280
This American Airlines deal was found by Cheapflights users on 8/11. 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 9/193:00 pm -
1 stop6h 53m
Sat 9/268:05 am -
1 stop7h 30m
Deal found 8/11![American Airlines logo]()
$301
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/1210:50 am -
2 stops10h 22m
Sat 9/196:00 am -
1 stop5h 32m
Deal found 8/15![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 8/13. 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 12/110:59 pm -
1 stop9h 33m
Sat 12/56:00 am -
1 stop5h 40m
Deal found 8/13![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/261:13 pm -
2 stops8h 31m
Sat 10/36:00 am -
2 stops8h 10m
Deal found 8/10![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 8/15. 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 10/13:00 pm -
1 stop5h 51m
Sat 10/175:00 pm -
1 stop8h 44m
Deal found 8/15![Delta logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/2912:20 pm -
2 stops44h 48m
Thu 9/1010:02 pm -
1 stop15h 52m
Deal found 8/11![Multiple Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/54:07 pm -
1 stop5h 37m
Sat 9/129:35 am -
2 stops10h 50m
Deal found 8/12![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 8/15. 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 10/135:00 am -
1 stop6h 26m
Mon 10/195:53 pm -
1 stop6h 00m
Deal found 8/15![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 8/13. 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 10/711:49 pm -
1 stop9h 05m
Wed 10/145:04 pm -
1 stop7h 35m
Deal found 8/13![American Airlines logo]()
$350
Best flights from Portland to South DakotaDiscover carefully curated flight deals from Portland to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
Discover carefully curated flight deals from Portland to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:20 pm -
1 stop5h 41m
Mon 9/78:56 pm -
1 stop22h 15m
Deal found 8/10![Frontier logo]()
$303
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/262:27 pm -
1 stop6h 44m
Sat 10/36:00 am -
2 stops8h 10m
Deal found 8/10![United Airlines logo]()
$306
This Delta deal was found by Cheapflights users on 8/15. 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 10/223:22 pm -
1 stop6h 00m
Mon 10/265:00 pm -
1 stop8h 44m
Deal found 8/15![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/18:40 am -
1 stop5h 43m
Thu 9/101:33 pm -
2 stops9h 26m
Deal found 8/11![United Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 8/13. 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 9/26:00 am -
1 stop7h 48m
Mon 9/71:26 pm -
1 stop6h 08m
Deal found 8/13![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/212:45 pm -
1 stop6h 52m
Wed 9/95:22 am -
1 stop5h 11m
Deal found 8/15![United Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 9/253:00 pm -
1 stop5h 51m
Sun 9/274:28 pm -
1 stop8h 42m
Deal found 8/14![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/125:00 am -
1 stop6h 24m
Tue 9/1511:22 am -
1 stop7h 47m
Deal found 8/13![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/125:00 am -
1 stop6h 24m
Sun 9/205:48 pm -
1 stop6h 05m
Deal found 8/12![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 8/14. 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 9/156:00 am -
1 stop6h 06m
Tue 9/226:34 am -
1 stop8h 03m
Deal found 8/14![Delta logo]()
$442
This United Airlines deal was found by Cheapflights users on 8/12. 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 10/212:27 pm -
1 stop6h 44m
Mon 10/265:06 pm -
1 stop6h 07m
Deal found 8/12![United Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/154:07 pm -
1 stop5h 37m
Tue 10/2011:35 am -
2 stops8h 56m
Deal found 8/14![United Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/192:27 pm -
1 stop6h 45m
Sat 9/269:42 am -
2 stops13h 18m
Deal found 8/14![United Airlines logo]()
$396
This Delta deal was found by Cheapflights users on 8/11. 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 8/266:00 am -
1 stop6h 20m
Sun 8/306:34 am -
1 stop6h 07m
Deal found 8/11![Delta logo]()
$562
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/274:25 pm -
1 stop5h 19m
Sat 10/317:40 am -
3 stops12h 44m
Deal found 8/13![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/245:00 am -
1 stop6h 26m
Tue 10/275:00 am -
1 stop5h 36m
Deal found 8/11![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/279:00 am -
2 stops10h 43m
Sat 10/3111:12 am -
2 stops12h 34m
Deal found 8/13![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 8/13. 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.
Mon 11/96:00 am -
1 stop5h 59m
Fri 11/136:34 am -
1 stop7h 59m
Deal found 8/13![Delta logo]()
$690
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/235:00 am -
1 stop5h 55m
Wed 10/75:00 am -
1 stop5h 28m
Deal found 8/11![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/54:07 pm -
1 stop5h 21m
Tue 9/85:00 am -
1 stop5h 32m
Deal found 8/11![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/15. 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 10/35:00 am -
1 stop5h 55m
Sat 10/105:00 am -
1 stop5h 36m
Deal found 8/15![United Airlines logo]()
$524
This Delta deal was found by Cheapflights users on 8/15. 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 8/306:00 am -
1 stop6h 20m
Thu 9/32:56 pm -
1 stop7h 21m
Deal found 8/15![Delta logo]()
$1,080
Last-minute flights from Portland to South DakotaDiscover last-minute flight deals from Portland to South Dakota. Data last updated August 16, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to South Dakota. Data last updated August 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/265:56 pm -
2 stops42h 03m
Mon 9/78:56 pm -
1 stop22h 15m
Deal found 8/11![Multiple Airlines logo]()
$349
This CheapOair deal was found by Cheapflights users on 8/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:20 pm -
1 stop5h 41m
Mon 8/318:56 pm -
1 stop22h 15m
Deal found 8/12![Frontier logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/2912:20 pm -
2 stops44h 48m
Thu 9/1010:02 pm -
1 stop15h 52m
Deal found 8/11![Multiple Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/18:40 am -
1 stop5h 43m
Thu 9/105:05 pm -
1 stop6h 00m
Deal found 8/11![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 8/11. 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 9/211:50 am -
1 stop5h 39m
Tue 9/158:23 am -
1 stop6h 14m
Deal found 8/11![Delta logo]()
$320
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/212:45 pm -
1 stop6h 52m
Wed 9/95:22 am -
1 stop5h 11m
Deal found 8/15![United Airlines logo]()
$354
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:20 pm -
1 stop5h 41m
Mon 9/78:56 pm -
1 stop22h 15m
Deal found 8/14![Frontier logo]()
$275
This United Airlines deal was found by Cheapflights users on 8/12. 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 9/54:07 pm -
1 stop5h 37m
Sat 9/129:35 am -
2 stops10h 50m
Deal found 8/12![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/54:07 pm -
1 stop5h 21m
Sun 9/65:00 am -
2 stops10h 47m
Deal found 8/13![United Airlines logo]()
$360
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/1210:50 am -
2 stops10h 22m
Sat 9/196:00 am -
1 stop5h 32m
Deal found 8/15![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/125:00 am -
1 stop6h 24m
Sun 9/205:48 pm -
1 stop6h 05m
Deal found 8/14![United Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/193:00 pm -
1 stop6h 53m
Sat 9/265:59 pm -
1 stop7h 24m
Deal found 8/13![American Airlines logo]()
$301
One-way flights from Portland to South DakotaSearch for one-way flight options from Portland to South Dakota. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
Search for one-way flight options from Portland to South Dakota. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
This Priceline deal was found by Cheapflights users on 8/15. 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.
Mon 8/3112:20 pm -
1 stop5h 41m
Deal found 8/15![Frontier logo]()
$175
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 10/1211:49 pm -
1 stop9h 05m
Deal found 8/11![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/229:00 am -
2 stops10h 38m
Deal found 8/15![United Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 9/2110:20 am -
2 stops48h 55m
Deal found 8/15![Allegiant Air logo]()
$328
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/168:40 am -
1 stop5h 43m
Deal found 8/11![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 8/11. 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 11/812:45 am -
1 stop7h 19m
Deal found 8/11![Delta logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 8/3110:21 am -
2 stops48h 37m
Deal found 8/15![Allegiant Air logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 8/2312:45 pm -
1 stop6h 52m
Deal found 8/14![United Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 8/15. 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 10/127:02 am -
2 stops27h 53m
Deal found 8/15![United Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 8/11. 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 9/81:20 pm -
2 stops7h 58m
Deal found 8/11![Delta logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Tue 9/229:46 pm -
3 stops39h 58m
Deal found 8/15![Multiple Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/77:00 am -
2 stops9h 49m
Deal found 8/11![United Airlines logo]()
$471
Find flight deals from Portland to South Dakota
Keep the following information in mind while searching for Portland to South Dakota flight deals. Data was last updated August 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $274 (CheapOair) |
One-way from | $175 (Priceline) |
Popular in | December |
Cheapest in | February |
Average price | $373 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to South Dakota 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 2,558,603 searches. Data last updated August 16, 2026.
Use the filters below to find and compare flights from Portland to South Dakota that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSioux Falls
PDX Portland - FSD Sioux Falls Joe Foss Field
PDXFSD
Portland
Fri 9/4
12:20 pm-8:01 pm
1 stop5h 41m
Sioux Falls Joe Foss Field
Mon 9/7
8:56 pm-5:11 pm
1 stop22h 15m
$303
PortlandSioux Falls
PDX Portland - FSD Sioux Falls Joe Foss Field
PDXFSD
Portland
Sat 9/26
2:27 pm-11:11 pm
1 stop6h 44m
Sioux Falls Joe Foss Field
Sat 10/3
6:00 am-12:10 pm
2 stops8h 10m
$306
PortlandSioux Falls
PDX Portland - FSD Sioux Falls Joe Foss Field
PDXFSD
Portland
Thu 10/22
3:22 pm-11:22 pm
1 stop6h 00m
Sioux Falls Joe Foss Field
Mon 10/26
5:00 pm-11:44 pm
1 stop8h 44m
$339
PortlandSioux Falls
PDX Portland - FSD Sioux Falls Joe Foss Field
PDXFSD
Portland
Tue 9/1
8:40 am-4:23 pm
1 stop5h 43m
Sioux Falls Joe Foss Field
Thu 9/10
1:33 pm-8:59 pm
2 stops9h 26m
$344
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Wed 9/2
12:45 pm-8:37 pm
1 stop6h 52m
Rapid City
Wed 9/9
5:22 am-9:33 am
1 stop5h 11m
$354
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Sat 9/12
5:00 am-12:24 pm
1 stop6h 24m
Rapid City
Tue 9/15
11:22 am-6:09 pm
1 stop7h 47m
$363
PortlandSioux Falls
PDX Portland - FSD Sioux Falls Joe Foss Field
PDXFSD
Portland
Wed 9/2
6:00 am-3:48 pm
1 stop7h 48m
Sioux Falls Joe Foss Field
Mon 9/7
1:26 pm-5:34 pm
1 stop6h 08m
$369
PortlandSioux Falls
PDX Portland - FSD Sioux Falls Joe Foss Field
PDXFSD
Portland
Fri 9/25
3:00 pm-10:51 pm
1 stop5h 51m
Sioux Falls Joe Foss Field
Sun 9/27
4:28 pm-11:10 pm
1 stop8h 42m
$369
PortlandRapid City
PDX Portland - RAP Rapid City
PDXRAP
Portland
Sat 9/12
5:00 am-12:24 pm
1 stop6h 24m
Rapid City
Sun 9/20
5:48 pm-10:53 pm
1 stop6h 05m
$384
PortlandSioux Falls
PDX Portland - FSD Sioux Falls Joe Foss Field
PDXFSD
Portland
Wed 10/21
2:27 pm-11:11 pm
1 stop6h 44m
Sioux Falls Joe Foss Field
Mon 10/26
5:06 pm-9:13 pm
1 stop6h 07m
$385
Showing 1-10 of 33 resultsSorted by cheapest first
Best time to book a flight from Portland to South Dakota
Have a flexible travel schedule? Discover the best time to fly to South Dakota from Portland with our price prediction graph.
PDX-FSD
PDX-RAP
PDX-ABR
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 Portland to South Dakota
PDX-USSD
PDX-FSD
PDX-RAP
PDX-ABR
What is the cheapest month to book a flight from Portland to South Dakota?
Currently, February is the cheapest month in which you can book a flight from Portland to South Dakota (average of $342). Flying from Portland to South Dakota in March is currently the most expensive (average of $592). 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 Portland to South Dakota?
Airfare is below average for this route at the moment.
Portland to South Dakota flights typically cost between $328 and $553 in October.The cheapest round-trip price found within the last 5 days was $274 on Frontier (Oct 9-Oct 17).
How far ahead should I book a flight from Portland to South Dakota?
The price you pay for your flight from Portland to South Dakota may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing South Dakota
Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated August 16, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Portland to South Dakota by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Portland to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland to South Dakota
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Complete your trip
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Search flights from Portland to South Dakota by cabin class
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Portland and South Dakota flights
Browse other Portland and South Dakota flight options. Last updated on August 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to South Dakota flights
Consider these flights traveling from Portland to South Dakota.
Top 3 airlines flying from Portland to South Dakota
Discover the top 3 airlines that operate flights from Portland to South Dakota. 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 2,558,603 searches. Data last updated August 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$243 | Average$445 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$531 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$259 | Average$436 | FlexibilityNo cancel fee | On-time71% |