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$323+ Cheap flights from South Dakota to Portland, ME (PWM)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — PWM
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
1 adult, Economy
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Cheap flight deals from South Dakota to Portland

Cheapest flights from South Dakota to Portland
Explore the most affordable flight options available from South Dakota to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.

This United Airlines deal was found by Cheapflights users on 6/18. 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 9/237:47 am
FSD
-
PWM
1 stop5h 44m
United Airlines
Wed 9/305:08 pm
PWM
-
FSD
1 stop7h 03m
United Airlines
Deal found 6/18$323
This Delta deal was found by Cheapflights users on 6/15. 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 10/155:15 am
FSD
-
PWM
1 stop4h 40m
Delta
Tue 10/271:35 pm
PWM
-
FSD
1 stop9h 37m
Delta
Deal found 6/15$326
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:45 pm
FSD
-
PWM
1 stop6h 20m
American Airlines
Tue 10/206:00 am
PWM
-
FSD
2 stops9h 05m
American Airlines
Deal found 6/20$328
This Delta deal was found by Cheapflights users on 6/15. 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.
Sat 9/191:05 pm
FSD
-
PWM
2 stops7h 20m
Delta
Tue 9/294:45 pm
PWM
-
FSD
2 stops7h 06m
Delta
Deal found 6/15$333
This Delta deal was found by Cheapflights users on 6/15. 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 10/155:15 am
FSD
-
PWM
1 stop4h 40m
Delta
Mon 10/263:00 pm
PWM
-
FSD
2 stops8h 51m
Delta
Deal found 6/15$334
This Delta deal was found by Cheapflights users on 6/15. 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.
Wed 9/25:00 am
FSD
-
PWM
2 stops10h 01m
Delta
Thu 9/104:45 pm
PWM
-
FSD
2 stops7h 06m
Delta
Deal found 6/15$336
This Delta deal was found by Cheapflights users on 6/15. 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.
Wed 9/25:00 am
FSD
-
PWM
1 stop4h 45m
Delta
Fri 9/112:10 pm
PWM
-
FSD
1 stop6h 39m
Delta
Deal found 6/15$356
This Delta deal was found by Cheapflights users on 6/15. 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.
Wed 10/145:15 am
FSD
-
PWM
1 stop4h 40m
Delta
Tue 10/2710:00 am
PWM
-
FSD
2 stops13h 12m
Delta
Deal found 6/15$361
This Delta deal was found by Cheapflights users on 6/15. 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.
Wed 10/145:15 am
FSD
-
PWM
1 stop4h 40m
Delta
Mon 10/263:00 pm
PWM
-
FSD
2 stops8h 51m
Delta
Deal found 6/15$364

Find flight deals from South Dakota to Portland

Keep the following information in mind while searching for South Dakota to Portland flight deals. Data was last updated June 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$323
(United Airlines)

Popular in

January

Cheapest in

November

Average price

$814
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Portland flights.
Search Deals
From South Dakota to Portland
Search Deals
Highest demand for flights based on searches. 39% potential increase in price ($368 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Dakota to Portland 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 June 20, 2026.
Use the filters below to find and compare flights from South Dakota to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Tue 9/1

7:47 am-2:34 pm

1 stop5h 47m

Portland

Tue 9/8

4:57 pm-11:12 pm

1 stop7h 15m

$413
Quickest round-trip

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Tue 10/27

7:30 am-2:20 pm

1 stop5h 50m

Portland

Sat 10/31

5:08 pm-9:45 pm

1 stop5h 37m

$413

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Tue 10/20

5:15 am-1:53 pm

2 stops7h 38m

Portland

Sun 10/25

1:35 pm-10:12 pm

1 stop9h 37m

$430
Cheapest one-way
Quickest one-way

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Sat 9/26

5:04 am-10:45 am

1 stop4h 41m

$324

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Sat 9/26

7:00 am-4:24 pm

2 stops8h 24m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Sorted by cheapest first

Best time to book a flight from South Dakota to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from South Dakota with our price prediction graph.
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 South Dakota to Portland
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from South Dakota to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Portland from South Dakota?

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly into when you book flights from South Dakota to Portland.

  • How long is the flight from South Dakota to Portland, Maine?

    For as low as $326, United Airlines can have you in Portland, Maine from South Dakota in 4h 40m. There are 1316 mi between South Dakota and Portland, Maine. This flight may include one or multiple stops.

  • Can I find deals for flights from South Dakota to Portland that include hotel bookings?

    Yes. In addition to deals on South Dakota to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Dakota to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Dakota to Portland.

  • Can I find deals for business class flights from South Dakota to Portland?

    Yes. Cheapflights offers flight deals from South Dakota to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Lewiston
Conway

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Top 3 airlines flying from South Dakota to Portland

Discover the top 3 airlines that operate flights from South Dakota to Portland. 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 June 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$164Average$339FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$220Average$513FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$527FlexibilityNo cancel feeOn-time71%

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