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South Dakota

$181+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — RAP
Jun 5 — Jun 121
Fri 6/5
Fri 6/12
1 adult, Economy
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Cheap 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 May 6, 2026.

This United Airlines deal was found by Cheapflights users on 5/3. 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 7/236:00 am
PWM
-
RAP
1 stop6h 24m
United Airlines
Tue 7/281:35 pm
RAP
-
PWM
1 stop6h 06m
United Airlines
Deal found 5/3$349
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sun 5/246:00 am
PWM
-
RAP
1 stop6h 24m
United Airlines
Wed 6/31:35 pm
RAP
-
PWM
1 stop6h 16m
United Airlines
Deal found 5/4$374
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Sun 5/2410:57 am
PWM
-
RAP
2 stops12h 36m
American Airlines
Wed 6/33:23 pm
RAP
-
PWM
1 stop7h 18m
American Airlines
Deal found 5/5$379
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Thu 7/236:00 am
PWM
-
RAP
1 stop6h 24m
United Airlines
Mon 7/271:35 pm
RAP
-
PWM
1 stop6h 06m
United Airlines
Deal found 5/2$384
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/53:23 pm
PWM
-
RAP
1 stop7h 05m
United Airlines
Tue 5/127:00 am
RAP
-
PWM
1 stop6h 41m
United Airlines
Deal found 5/4$441
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/276:00 am
PWM
-
RAP
1 stop10h 53m
American Airlines
Mon 6/13:23 pm
RAP
-
PWM
1 stop7h 12m
American Airlines
Deal found 5/1$448
This American Airlines deal was found by Cheapflights users on 5/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:25 pm
PWM
-
RAP
2 stops10h 06m
American Airlines
Mon 7/273:25 pm
RAP
-
PWM
1 stop7h 12m
American Airlines
Deal found 5/3$478

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 May 6, 2026.

Round-trip from

$349
(United Airlines)

One-way from

$181
(Delta)

Popular in

April

Cheapest in

August

Average price

$504
From Portland to South Dakota
Search Deals
One-way flight from Portland to South Dakota
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 6, 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

Price

Cheapest round-trip
Quickest round-trip

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Thu 7/23

6:00 am-10:24 am

1 stop6h 24m

Rapid City

Tue 7/28

1:35 pm-9:41 pm

1 stop6h 06m

$349

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sun 5/24

6:00 am-11:19 am

1 stop7h 19m

Rapid City

Wed 6/3

3:23 pm-12:41 am

1 stop7h 18m

$374

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Thu 7/23

6:00 am-10:24 am

1 stop6h 24m

Rapid City

Mon 7/27

1:35 pm-11:51 pm

2 stops8h 16m

$465

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Thu 9/10

1:02 pm-9:58 pm

2 stops10h 56m

Rapid City

Sun 9/13

6:30 am-6:31 pm

1 stop10h 01m

$511

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Fri 10/16

1:05 pm-9:58 pm

2 stops10h 53m

Rapid City

Tue 10/20

6:30 am-8:14 pm

2 stops11h 44m

$520

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sat 5/16

9:40 am-8:28 pm

2 stops12h 48m

Rapid City

Wed 5/20

10:00 am-11:29 pm

2 stops11h 29m

$614

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 5/27

5:15 am-4:00 pm

3 stops12h 45m

Rapid City

Mon 6/1

11:20 am-10:04 am

2 stops20h 44m

$644

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Fri 8/7

8:00 am-4:32 pm

1 stop10h 32m

Rapid City

Mon 8/17

12:19 pm-10:50 pm

1 stop8h 31m

$739
Cheapest one-way

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 10/28

11:30 am-3:46 pm

1 stop6h 16m

$181

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 10/28

1:05 pm-9:58 pm

2 stops10h 53m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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
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 May 6, 2026.
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
9,684 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,684 reviews
United Airlines
7.4
Good
9,684 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
American Airlines
7.1
Good
11,666 reviews
United Airlines
7.4
Good
9,684 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 6h 24m. There are 1620 mi between Portland, Maine and South Dakota. This flight may include one or multiple stops.

  • 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.

See more FAQs

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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 May 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$308Average$651FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$388Average$590FlexibilityNo cancel feeOn-time71%

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