$414+ Cheap flights from Portland, ME (PWM) to South Dakota
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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — FSD
Oct 26 — Nov 21
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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Last-minute
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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 September 26, 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 September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/146:00 am -
1 stop6h 15m
Tue 10/201:37 pm -
1 stop6h 17m
Deal found 9/25![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 10/145:08 pm -
1 stop7h 03m
Thu 10/297:48 am -
1 stop5h 28m
Deal found 9/21![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/25. 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 11/45:08 pm -
1 stop5h 29m
Wed 11/116:00 am -
1 stop7h 16m
Deal found 9/25![United Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 9/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:52 pm -
2 stops10h 30m
Wed 11/1111:00 am -
2 stops11h 21m
Deal found 9/23![Delta logo]()
$493
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:00 am -
1 stop6h 15m
Wed 10/287:00 am -
1 stop7h 02m
Deal found 9/23![United Airlines logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Wed 10/147:00 am -
2 stops36h 06m
Thu 10/225:45 pm -
1 stop14h 23m
Deal found 9/21![Multiple Airlines logo]()
$595
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/156:00 am -
1 stop6h 15m
Wed 10/211:37 pm -
1 stop6h 17m
Deal found 9/23![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/68:03 am -
2 stops13h 17m
Sat 10/103:03 pm -
2 stops7h 56m
Deal found 9/21![United Airlines logo]()
$642
This American Airlines deal was found by Cheapflights users on 9/25. 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 9/267:32 am -
2 stops10h 51m
Sat 10/31:16 pm -
1 stop6h 57m
Deal found 9/25![American Airlines logo]()
$666
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 September 26, 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 September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/146:00 am -
1 stop6h 15m
Tue 10/201:37 pm -
1 stop6h 17m
Deal found 9/25![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 9/25. 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 11/44:47 pm -
2 stops7h 35m
Wed 11/115:25 am -
2 stops8h 51m
Deal found 9/25![Delta logo]()
$493
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 10/145:08 pm -
1 stop7h 03m
Thu 10/297:48 am -
1 stop5h 28m
Deal found 9/21![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 11/45:08 pm -
1 stop7h 21m
Wed 11/117:48 am -
1 stop5h 28m
Deal found 9/23![United Airlines logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:00 am -
1 stop6h 15m
Wed 10/287:00 am -
1 stop7h 02m
Deal found 9/23![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 1/68:55 am -
2 stops15h 15m
Sat 1/96:00 am -
2 stops10h 13m
Deal found 9/23![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/156:00 am -
1 stop6h 15m
Wed 10/211:37 pm -
1 stop6h 17m
Deal found 9/23![United Airlines logo]()
$628
Last-minute flights from Portland to South DakotaDiscover last-minute flight deals from Portland to South Dakota. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to South Dakota. Data last updated September 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/25. 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 9/267:32 am -
2 stops10h 51m
Sat 10/31:16 pm -
1 stop6h 57m
Deal found 9/25![American Airlines logo]()
$666
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/68:03 am -
2 stops13h 17m
Sat 10/103:03 pm -
2 stops7h 56m
Deal found 9/21![United Airlines logo]()
$642
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/85:08 pm -
1 stop7h 03m
Mon 10/127:50 am -
1 stop5h 48m
Deal found 9/23![United Airlines logo]()
$786
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/146:00 am -
1 stop6h 15m
Tue 10/201:37 pm -
1 stop6h 17m
Deal found 9/25![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 10/145:08 pm -
1 stop7h 03m
Thu 10/297:48 am -
1 stop5h 28m
Deal found 9/21![United Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Wed 10/147:00 am -
2 stops36h 06m
Thu 10/225:45 pm -
1 stop14h 23m
Deal found 9/21![Multiple Airlines logo]()
$595
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:45 pm -
1 stop7h 56m
Thu 10/222:48 pm -
1 stop7h 55m
Deal found 9/21![American Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Wed 10/145:08 pm -
1 stop7h 03m
Thu 10/227:50 am -
1 stop12h 56m
Deal found 9/21![United Airlines logo]()
$735
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Thu 10/156:00 am -
1 stop6h 15m
Wed 10/211:37 pm -
1 stop6h 17m
Deal found 9/23![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:00 am -
1 stop6h 15m
Wed 10/287:00 am -
1 stop7h 02m
Deal found 9/23![United Airlines logo]()
$499
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 September 26, 2026.
Search for one-way flight options from Portland to South Dakota. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This deal was found by Cheapflights users on 9/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:00 am -
1 stop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$473
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 September 26, 2026.
Round-trip from | $414 (United Airlines) |
|---|
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 7,457,451 searches. Data last updated September 26, 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
PortlandRapid City
PWM Portland - RAP Rapid City
PWMRAP
Portland
Wed 10/14
6:00 am-10:15 am
1 stop6h 15m
Rapid City
Tue 10/20
1:37 pm-9:54 pm
1 stop6h 17m
$414
PortlandSioux Falls
PWM Portland - FSD Sioux Falls Joe Foss Field
PWMFSD
Portland
Wed 10/14
5:08 pm-11:11 pm
1 stop7h 03m
Sioux Falls Joe Foss Field
Thu 10/29
7:48 am-2:16 pm
1 stop5h 28m
$429
PortlandSioux Falls
PWM Portland - FSD Sioux Falls Joe Foss Field
PWMFSD
Portland
Wed 11/4
5:08 pm-11:29 pm
1 stop7h 21m
Sioux Falls Joe Foss Field
Wed 11/11
7:48 am-2:16 pm
1 stop5h 28m
$463
Quickest round-trip
PortlandRapid City
PWM Portland - RAP Rapid City
PWMRAP
Portland
Sat 10/10
6:00 am-10:15 am
1 stop6h 15m
Rapid City
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$473
PortlandSioux Falls
PWM Portland - FSD Sioux Falls Joe Foss Field
PWMFSD
Portland
Wed 11/4
4:47 pm-11:22 pm
2 stops7h 35m
Sioux Falls Joe Foss Field
Wed 11/11
5:25 am-3:16 pm
2 stops8h 51m
$493
PortlandRapid City
PWM Portland - RAP Rapid City
PWMRAP
Portland
Wed 10/21
6:00 am-10:15 am
1 stop6h 15m
Rapid City
Wed 10/28
7:00 am-4:02 pm
1 stop7h 02m
$499
PortlandRapid City
PWM Portland - RAP Rapid City
PWMRAP
Portland
Wed 1/6
8:55 am-10:10 pm
2 stops15h 15m
Rapid City
Sat 1/9
6:00 am-6:13 pm
2 stops10h 13m
$509
PortlandRapid City
PWM Portland - RAP Rapid City
PWMRAP
Portland
Thu 10/15
6:00 am-10:15 am
1 stop6h 15m
Rapid City
Wed 10/21
1:37 pm-9:54 pm
1 stop6h 17m
$628
Sorted 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.
PWM-RAP
PWM-FSD
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
PWM-USSD
PWM-RAP
PWM-FSD
No data available for this route at this time. Please check back soon.
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 September 26, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Portland to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to South Dakota by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to South Dakota by cabin class
Find flights from Portland to South Dakota, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and South Dakota flights
Browse other Portland and South Dakota flight options. Last updated on September 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$322 | Average$519 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$386 | Average$593 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$459 | Average$478 | FlexibilityNo cancel fee | On-timeN/A |