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$303+ Cheap flights from South Dakota to Portland, ME (PWM)

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — PWM
Apr 19 — Apr 261
Sun 4/19
Sun 4/26
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 March 20, 2026.

This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
FSD
-
PWM
1 stop7h 28m
United Airlines
Tue 8/255:05 pm
PWM
-
FSD
1 stop5h 47m
United Airlines
Deal found 3/19$323
This American Airlines deal was found by Cheapflights users on 3/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:30 am
FSD
-
PWM
2 stops11h 53m
American Airlines
Wed 9/169:01 am
PWM
-
FSD
2 stops9h 21m
American Airlines
Deal found 3/18$333
This American Airlines deal was found by Cheapflights users on 3/17. 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 4/293:17 pm
FSD
-
PWM
1 stop7h 10m
American Airlines
Sat 5/27:07 am
PWM
-
FSD
1 stop5h 52m
American Airlines
Deal found 3/17$376
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:15 am
FSD
-
PWM
1 stop4h 40m
Delta
Tue 10/201:35 pm
PWM
-
FSD
1 stop9h 37m
Delta
Deal found 3/19$391
This United Airlines deal was found by Cheapflights users on 3/17. 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 5/57:30 am
FSD
-
PWM
1 stop5h 44m
United Airlines
Sat 5/94:50 pm
PWM
-
FSD
1 stop6h 02m
United Airlines
Deal found 3/17$403

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 March 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$323
(United Airlines)

One-way from

$303
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$654
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
One-way flight from South Dakota to Portland
Search Deals
Highest demand for flights based on searches. 43% potential increase in price ($405 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 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

Wed 4/29

3:17 pm-11:27 pm

1 stop7h 10m

Portland

Sat 5/2

7:07 am-4:58 pm

2 stops10h 51m

$381
Quickest round-trip

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Tue 5/5

7:30 am-2:14 pm

1 stop5h 44m

Portland

Sat 5/9

4:50 pm-9:52 pm

1 stop6h 02m

$403
Cheapest one-way
Quickest one-way

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Mon 6/1

4:48 pm-11:46 am

1 stop17h 58m

$303

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Mon 6/1

8:53 pm-4:16 pm

3 stops42h 23m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

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

What is the cheapest month to book a flight from South Dakota to Portland, Maine?

Currently, November is the cheapest month in which you can book a flight from South Dakota to Portland, Maine (average of $204). Flying from South Dakota to Portland, Maine in June is currently the most expensive (average of $382). 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 South Dakota to Portland, Maine?

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 $403, American Airlines can have you in Portland, Maine from South Dakota in 5h 44m. 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.

  • What is the cheapest month to book a flight from South Dakota to Portland, Maine?

    Currently, November is the cheapest month in which you can book a flight from South Dakota to Portland, Maine (average of $204). Flying from South Dakota to Portland, Maine in June is currently the most expensive (average of $382). 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.

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
Auburn
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 March 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$164Average$323FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$220Average$593FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$379FlexibilityNo cancel feeOn-time71%

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