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Rapid City

$176+ Cheap flights from Portland, ME to Rapid City (PWM - RAP)

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — RAP
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Portland to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Rapid City (RAP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$299
(Delta)

One-way from

$176
(Delta)

Popular in

July

Cheapest in

January

Average price

$822
From Portland to Rapid City
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One-way flight from Portland to Rapid City
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Highest demand for flights based on searches. 11% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Rapid City

Cheapest flights from Portland to Rapid City
Explore the most affordable flight options available from Portland to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Delta deal was found by Cheapflights users on 7/27. 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 9/63:55 pmPWM - RAP
2 stops8h 37mDelta
Tue 9/910:55 amRAP - PWM
2 stops10h 30mDelta
Deal found 7/27$299
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/216:14 amPWM - RAP
1 stop6h 08mUnited Airlines
Thu 9/251:44 pmRAP - PWM
1 stop6h 00mUnited Airlines
Deal found 7/28$351
This American Airlines deal was found by Cheapflights users on 7/27. 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 10/46:00 amPWM - RAP
2 stops12h 04mAmerican Airlines
Tue 10/145:32 amRAP - PWM
2 stops12h 42mAmerican Airlines
Deal found 7/27$398

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Rapid City 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 July 29, 2025.
Use the filters below to find and compare flights from Portland to Rapid City that are best for you.

Fly from

Portland

Fly to

Rapid City

Route

Depart

Return

Price

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sat 9/6

3:55 pm-10:32 pm

2 stops8h 37m

Rapid City

Tue 9/9

10:55 am-11:25 pm

2 stops10h 30m

$299

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sun 9/21

6:14 am-10:22 am

1 stop6h 08m

Rapid City

Thu 9/25

1:44 pm-9:44 pm

1 stop6h 00m

$351

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sat 10/4

6:00 am-4:04 pm

2 stops12h 04m

Rapid City

Tue 10/14

5:32 am-8:14 pm

2 stops12h 42m

$398

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Fri 9/12

11:45 am-3:43 pm

1 stop5h 58m

$176

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Tue 9/23

6:14 am-10:22 am

1 stop6h 08m

$221

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Tue 9/16

9:18 am-4:04 pm

1 stop8h 46m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Portland to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City 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 Rapid City

What is the cheapest month to book a flight from Portland, Maine to Rapid City?

Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Rapid City (average of $348). Flying from Portland, Maine to Rapid City in June is currently the most expensive (average of $502). 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 Rapid City

Get insights into the airlines that provide service to Rapid City. 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 Rapid City. Reviews last updated July 29, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Portland to Rapid City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What are the cheapest airlines flying from Portland, Maine to Rapid City round-trip?

    Delta, at $299, was found to be the cheapest airline from Portland, Maine to Rapid City.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Delta is 50% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $176. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Portland, Maine to Rapid City for a low price.

  • Can I find deals for flights from Portland to Rapid City that include hotel bookings?

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

  • How can I find direct flights from Portland to Rapid City?

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

  • Can I find deals for business class flights from Portland to Rapid City?

    Yes. Cheapflights offers flight deals from Portland to Rapid City 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 Rapid City?

    Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Rapid City (average of $348). Flying from Portland, Maine to Rapid City in June is currently the most expensive (average of $502). 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 Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Deadwood
Keystone
Sturgis
Spearfish

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Alternative routes for Portland to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Portland to Rapid City

Discover the top 2 airlines that operate flights from Portland to Rapid City. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$313Average$602FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$350Average$628FlexibilityNo cancel feeOn-time69%

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