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Cheap flights from Portland, Maine to Rapid City from $291

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Rapid City departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portland, Maine to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:23 pm - 9:36 pm
PWM
-
RAP
7h 13m
1 stop
United Airlines Logo
12:10 pm - 9:19 pm
RAP
-
PWM
7h 09m
1 stop
$309United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
4:23 pm - 9:36 pm
PWM
-
RAP
7h 13m
1 stop
United Airlines Logo
12:10 pm - 11:59 pm
RAP
-
PWM
9h 49m
2 stops
$329United Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
6:04 am - 1:08 pm
PWM
-
RAP
9h 04m
2 stops
United Airlines Logo
12:10 pm - 11:59 pm
RAP
-
PWM
9h 49m
2 stops
$427United Airlines
Tue, Apr 28 - Sat, May 2
American Airlines Logo
6:08 am - 11:14 am
PWM
-
RAP
7h 06m
1 stop
American Airlines Logo
3:32 pm - 12:30 am
RAP
-
PWM
6h 58m
1 stop
$433American Airlines
Wed, May 27 - Sat, May 30
United Airlines Logo
6:00 am - 4:02 pm
PWM
-
RAP
12h 02m
2 stops
United Airlines Logo
1:41 pm - 9:58 pm
RAP
-
PWM
6h 17m
1 stop
$459United Airlines
Wed, May 27 - Sat, May 30
United Airlines Logo
6:00 am - 4:02 pm
PWM
-
RAP
12h 02m
2 stops
United Airlines Logo
1:41 pm - 11:50 pm
RAP
-
PWM
8h 09m
2 stops
$469United Airlines
Wed, May 27 - Sat, May 30
American Airlines Logo
6:26 am - 11:15 am
PWM
-
RAP
6h 49m
1 stop
American Airlines Logo
11:54 am - 10:40 pm
RAP
-
PWM
8h 46m
1 stop
$526American Airlines
Sat, Jul 11 - Tue, Jul 14
Delta Logo
6:00 am - 3:44 pm
PWM
-
RAP
11h 44m
2 stops
Delta Logo
10:54 am - 11:20 pm
RAP
-
PWM
10h 26m
2 stops
$529Delta
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
10:24 am - 9:58 pm
PWM
-
RAP
13h 34m
2 stops
American Airlines Logo
11:53 am - 11:27 pm
RAP
-
PWM
9h 34m
1 stop
$543American Airlines
Wed, May 13 - Mon, May 18
American Airlines Logo
5:51 pm - 11:23 am
PWM
-
RAP
19h 32m
1 stop
American Airlines Logo
11:53 am - 11:27 pm
RAP
-
PWM
9h 34m
1 stop
$547American Airlines
Wed, May 13 - Mon, May 18

United Airlines flights from Portland, Maine to Rapid City

Our best United Airlines deals on Portland, Maine to Rapid City flight tickets
United Airlines
Apr 28
PWM4:23 pmPortland
7h 13m
1 stop
RAP9:36 pmRapid City
May 2
RAP12:10 pmRapid City
7h 09m
1 stop
PWM9:19 pmPortland
$309
United Airlines
Apr 28
PWM4:23 pmPortland
7h 13m
1 stop
RAP9:36 pmRapid City
May 2
RAP12:10 pmRapid City
9h 49m
2 stops
PWM11:59 pmPortland
$329
United Airlines
Apr 28
PWM6:04 amPortland
9h 04m
2 stops
RAP1:08 pmRapid City
May 2
RAP12:10 pmRapid City
9h 49m
2 stops
PWM11:59 pmPortland
$427

American Airlines flights from Portland, Maine to Rapid City

Our best American Airlines deals on Portland, Maine to Rapid City flight tickets
American Airlines
May 27
PWM6:08 amPortland
7h 06m
1 stop
RAP11:14 amRapid City
May 30
RAP3:32 pmRapid City
6h 58m
1 stop
PWM12:30 amPortland
$433
American Airlines
Jul 11
PWM6:26 amPortland
6h 49m
1 stop
RAP11:15 amRapid City
Jul 14
RAP11:54 amRapid City
8h 46m
1 stop
PWM10:40 pmPortland
$526
American Airlines
May 13
PWM10:24 amPortland
13h 34m
2 stops
RAP9:58 pmRapid City
May 18
RAP11:53 amRapid City
9h 34m
1 stop
PWM11:27 pmPortland
$543

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine 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, momondo users made 832,500 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Portland, Maine to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Tue 4/28

4:23 pm-9:36 pm

1 stop7h 13m

Rapid City

Sat 5/2

12:10 pm-9:19 pm

1 stop7h 09m

$309

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Tue 4/28

4:23 pm-9:36 pm

1 stop7h 13m

Rapid City

Sat 5/2

12:10 pm-11:59 pm

2 stops9h 49m

$329

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Tue 4/28

6:04 am-1:08 pm

2 stops9h 04m

Rapid City

Sat 5/2

12:10 pm-11:59 pm

2 stops9h 49m

$427

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 5/27

6:08 am-11:14 am

1 stop7h 06m

Rapid City

Sat 5/30

3:32 pm-12:30 am

1 stop6h 58m

$433

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 5/27

6:00 am-4:02 pm

2 stops12h 02m

Rapid City

Sat 5/30

1:41 pm-9:58 pm

1 stop6h 17m

$459

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 5/27

6:00 am-4:02 pm

2 stops12h 02m

Rapid City

Sat 5/30

1:41 pm-11:50 pm

2 stops8h 09m

$469

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sat 7/11

6:26 am-11:15 am

1 stop6h 49m

Rapid City

Tue 7/14

11:54 am-10:40 pm

1 stop8h 46m

$526

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Thu 2/26

6:00 am-3:44 pm

2 stops11h 44m

Rapid City

Mon 3/2

10:54 am-11:20 pm

2 stops10h 26m

$529

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 5/13

10:24 am-9:58 pm

2 stops13h 34m

Rapid City

Mon 5/18

11:53 am-11:27 pm

1 stop9h 34m

$543

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 5/13

5:51 pm-11:23 am

1 stop19h 32m

Rapid City

Mon 5/18

11:53 am-11:27 pm

1 stop9h 34m

$547

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Rapid City from

How to get the cheapest flight ticket from Portland, Maine to Rapid City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Portland, Maine to Rapid City flights?

You could potentially save up to 35% on your flight if you consider stops on a Portland, Maine to Rapid City flight.

When to book flights from Portland, Maine to Rapid City

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Rapid City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Rapid City (PWM to RAP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Rapid City

Fastest flight time

6h 19m

Direct flights

None
The fastest flight from Portland, Maine to Rapid City takes 6h 19m
There are no direct flights from Portland, Maine to Rapid City. There are no popular flight routes from Portland, Maine to Rapid City.
Search flight deals

  • How far is Portland to Rapid City by plane?

    The distance between Portland and Rapid City is about 1630.6 mi. Flights usually cover this in 6h 19m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to Rapid City Airport?

    Prices for flights from Portland Airport to Rapid City Airport were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Rapid City Airport?

  • How old do you have to be to fly from Portland Airport to Rapid City Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Rapid City Airport.

  • What documentation or ID do you need to fly to Rapid City Airport?

    The necessary travel and health documents for your Rapid City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland, Maine to Rapid City?

Best airlines flying from Portland, Maine to Rapid City

Compare and see reviews for airlines that fly from Portland, Maine to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $313Free CancellationRating
7.2
11,265 reviews
Search American Airlines flights
United AirlinesPriceFrom $350Free CancellationRating
7.4
9,273 reviews
Search United Airlines flights

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
Custer
Hill City
Wall
Hot Springs

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Rapid City?

Finding the right flight to Rapid City from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Rapid City quick and easy, saving you time and money.

Can I find flights from Portland to Rapid City with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Rapid City flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Rapid City?

momondo helps you find the best flight between Portland and Rapid City by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Rapid City right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Rapid City flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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