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$389+ 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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — PWM
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/2. 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.
Wed 12/178:00 amFSD - PWM
1 stop5h 22mUnited Airlines
Sun 12/215:30 amPWM - FSD
2 stops17h 26mUnited Airlines
Deal found 12/2$648
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/98:00 amFSD - PWM
1 stop5h 22mUnited Airlines
Wed 12/1010:35 amPWM - FSD
2 stops14h 08mUnited Airlines
Deal found 12/4$718
This Delta deal was found by Cheapflights users on 12/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:01 amFSD - PWM
2 stops13h 22mDelta
Wed 12/106:08 amPWM - FSD
2 stops10h 37mDelta
Deal found 12/4$723
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/187:30 amFSD - PWM
1 stop5h 44mUnited Airlines
Mon 12/227:30 pmPWM - FSD
2 stops19h 57mUnited Airlines
Deal found 12/3$780
This American Airlines deal was found by Cheapflights users on 12/4. 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.
Tue 12/910:43 amFSD - PWM
3 stops11h 54mAmerican Airlines
Wed 12/105:46 amPWM - FSD
2 stops11h 49mAmerican Airlines
Deal found 12/4$1,077

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$389
(United Airlines)

Popular in

July

Cheapest in

November
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. 18% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
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 December 4, 2025.
Use the filters below to find and compare flights from South Dakota to Portland that are best for you.

Fly from

South Dakota

Fly to

Portland

Route

Depart

Return

Price

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Sat 2/14

11:21 am-11:20 pm

2 stops10h 59m

Portland

Wed 2/18

6:00 am-5:21 pm

2 stops12h 21m

$389

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Mon 1/5

6:16 pm-2:39 pm

1 stop19h 23m

Portland

Mon 1/12

4:10 pm-9:50 pm

1 stop6h 40m

$433

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Mon 1/5

1:16 pm-11:45 pm

2 stops9h 29m

Portland

Mon 1/12

12:46 pm-10:04 pm

2 stops10h 18m

$436

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Thu 1/1

3:08 pm-11:59 pm

2 stops7h 51m

Portland

Thu 1/8

6:00 am-2:36 pm

2 stops9h 36m

$439

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Thu 1/1

7:29 pm-11:49 am

2 stops15h 20m

Portland

Thu 1/8

12:46 pm-10:04 pm

2 stops10h 18m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

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 February is currently the most expensive (average of $395). 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.

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 $389, United Airlines can have you in Portland, Maine from South Dakota in 10h 59m. There are 1316 mi between South Dakota and Portland, Maine.

  • 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 February is currently the most expensive (average of $395). 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
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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$188Average$349FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$315FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$306Average$510FlexibilityNo cancel feeOn-time69%

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