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South Dakota

$321+ Cheap flights from Portland, ME (PWM) 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — FSD
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap 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 septiembre 11, 2025.

Round-trip from

$379
(United Airlines)

One-way from

$321
(American Airlines)
From Portland to South Dakota
Search Deals
One-way flight from Portland to South Dakota
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Find flight deals from Portland to South Dakota

Cheapest flights from Portland to South Dakota
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 septiembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. 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.
sáb. 10/46:14 amPWM - RAP
1 stop5h 59mUnited Airlines
mar. 10/141:44 pmRAP - PWM
1 stop6h 00mUnited Airlines
Deal found 9/9$379
This United Airlines deal was found by Cheapflights users on 9/9. 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.
sáb. 10/46:14 amPWM - RAP
1 stop5h 59mUnited Airlines
mar. 10/711:15 amRAP - PWM
2 stops10h 44mUnited Airlines
Deal found 9/9$384
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/128:45 amPWM - RAP
2 stops14h 08mAmerican Airlines
dom. 9/1411:52 amRAP - PWM
1 stop9h 45mAmerican Airlines
Deal found 9/10$494
This United Airlines deal was found by Cheapflights users on 9/11. 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.
mié. 11/53:20 pmPWM - RAP
1 stop7h 06mUnited Airlines
lun. 11/108:45 amRAP - PWM
2 stops12h 32mUnited Airlines
Deal found 9/11$514

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 septiembre 11, 2025.
Use the filters below to find and compare flights from Portland to South Dakota that are best for you.

Fly from

Portland

Fly to

South Dakota

Route

Depart

Return

Price

PortlandRapid City

PWM - RAP

PWMRAP

Portland

sáb. 10/4

6:14 am-10:13 am

1 stop5h 59m

Rapid City

mar. 10/14

1:44 pm-9:44 pm

1 stop6h 00m

$379

PortlandRapid City

PWM - RAP

PWMRAP

Portland

sáb. 10/4

6:14 am-10:13 am

1 stop5h 59m

Rapid City

mar. 10/7

11:15 am-11:59 pm

2 stops10h 44m

$384

PortlandRapid City

PWM - RAP

PWMRAP

Portland

mar. 9/23

6:01 am-12:42 pm

1 stop8h 41m

$321

PortlandRapid City

PWM - RAP

PWMRAP

Portland

mar. 9/23

1:40 pm-10:30 pm

2 stops10h 50m

$326

PortlandRapid City

PWM - RAP

PWMRAP

Portland

mar. 9/16

6:01 am-12:42 pm

1 stop8h 41m

$396

PortlandRapid City

PWM - RAP

PWMRAP

Portland

mar. 9/16

1:40 pm-10:30 pm

2 stops10h 50m

$401

PortlandRapid City

PWM - RAP

PWMRAP

Portland

mar. 9/16

2:14 pm-10:22 am

3 stops22h 08m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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.
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

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

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to South Dakota (average of $334). Flying from Portland, Maine to South Dakota in December is currently the most expensive (average of $446). 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.

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 septiembre 11, 2025.
See what other customers who have flown with United Airlines and American 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.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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.

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

    If you book a flight to South Dakota from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

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

    Departing from Portland, Maine to South Dakota will take you 5h 59m. There are 1620 mi between Portland, Maine and South Dakota.

  • What are the cheapest airlines to fly from Portland, Maine to South Dakota one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $321. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Portland, Maine to South Dakota for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to South Dakota 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 Portland, Maine to South Dakota?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to South Dakota (average of $334). Flying from Portland, Maine to South Dakota in December is currently the most expensive (average of $446). 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.

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Top 2 airlines flying from Portland to South Dakota

Discover the top 2 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$562FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$350Average$625FlexibilityNo cancel feeOn-time69%

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