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Cheap flights from Portland, Maine to Rapid City from $380

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 7/13. 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.
American Airlines Logo
6:00 am - 4:31 pm
PWM
-
RAP
12h 31m
2 stops
American Airlines Logo
3:23 pm - 12:41 am
RAP
-
PWM
7h 18m
1 stop
$404American Airlines
Sat, May 30 - Wed, Jun 3
American Airlines Logo
6:28 am - 11:19 am
PWM
-
RAP
6h 51m
1 stop
American Airlines Logo
3:23 pm - 12:41 am
RAP
-
PWM
7h 18m
1 stop
$420American Airlines
Sat, May 30 - Wed, Jun 3
American Airlines Logo
1:36 pm - 9:33 pm
PWM
-
RAP
9h 57m
2 stops
American Airlines Logo
3:19 pm - 12:40 am
RAP
-
PWM
7h 21m
1 stop
$446American Airlines
Wed, Jun 10 - Sat, Jun 13
American Airlines Logo
6:00 am - 4:31 pm
PWM
-
RAP
12h 31m
2 stops
American Airlines Logo
12:41 pm - 12:41 am
RAP
-
PWM
10h 00m
2 stops
$472American Airlines
Sat, May 30 - Wed, Jun 3
American Airlines Logo
1:25 pm - 9:31 pm
PWM
-
RAP
10h 06m
2 stops
American Airlines Logo
3:25 pm - 12:37 am
RAP
-
PWM
7h 12m
1 stop
$495American Airlines
Thu, Jul 23 - Mon, Jul 27
American Airlines Logo
1:02 pm - 9:58 pm
PWM
-
RAP
10h 56m
2 stops
American Airlines Logo
6:30 am - 6:31 pm
RAP
-
PWM
10h 01m
1 stop
$506American Airlines
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
1:02 pm - 9:58 pm
PWM
-
RAP
10h 56m
2 stops
American Airlines Logo
6:30 am - 8:23 pm
RAP
-
PWM
11h 53m
2 stops
$511American Airlines
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
1:02 pm - 9:58 pm
PWM
-
RAP
10h 56m
2 stops
American Airlines Logo
6:30 am - 6:31 pm
RAP
-
PWM
10h 01m
1 stop
$516American Airlines
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
6:00 am - 11:14 am
PWM
-
RAP
7h 14m
1 stop
American Airlines Logo
3:25 pm - 12:37 am
RAP
-
PWM
7h 12m
1 stop
$521American Airlines
Thu, Jul 23 - Mon, Jul 27
American Airlines Logo
1:25 pm - 9:31 pm
PWM
-
RAP
10h 06m
2 stops
American Airlines Logo
3:25 pm - 12:37 am
RAP
-
PWM
7h 12m
1 stop
$534American Airlines
Thu, Jul 23 - Mon, Jul 27

United Airlines flights from Portland, Maine to Rapid City

Our best United Airlines deals on Portland, Maine to Rapid City flight tickets
United Airlines
May 18
PWM4:50 pmPortland
6h 56m
1 stop
RAP9:46 pmRapid City
Jun 6
RAP11:20 amRapid City
10h 31m
2 stops
PWM11:51 pmPortland
$460
United Airlines
May 23
PWM5:03 pmPortland
6h 34m
1 stop
RAP9:37 pmRapid City
Jun 5
RAP1:35 pmRapid City
6h 16m
1 stop
PWM9:51 pmPortland
$530
United Airlines
May 23
PWM5:03 pmPortland
6h 34m
1 stop
RAP9:37 pmRapid City
Jun 6
RAP11:20 amRapid City
10h 31m
2 stops
PWM11:51 pmPortland
$535

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 23
PWM11:37 amPortland
11h 56m
2 stops
RAP9:33 pmRapid City
Jun 6
RAP3:19 pmRapid City
7h 21m
1 stop
PWM12:40 amPortland
$400
American Airlines
May 30
PWM6:00 amPortland
12h 31m
2 stops
RAP4:31 pmRapid City
Jun 3
RAP3:23 pmRapid City
7h 18m
1 stop
PWM12:41 amPortland
$404
American Airlines
May 23
PWM11:37 amPortland
11h 56m
2 stops
RAP9:33 pmRapid City
Jun 6
RAP10:19 amRapid City
12h 21m
2 stops
PWM12:40 amPortland
$405

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 May 17, 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

Cheapest round-trip

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sat 5/30

6:00 am-4:31 pm

2 stops12h 31m

Rapid City

Wed 6/3

3:23 pm-12:41 am

1 stop7h 18m

$404
Quickest round-trip

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sat 5/30

6:28 am-11:19 am

1 stop6h 51m

Rapid City

Wed 6/3

3:23 pm-12:41 am

1 stop7h 18m

$420

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Wed 6/10

1:36 pm-9:33 pm

2 stops9h 57m

Rapid City

Sat 6/13

3:19 pm-12:40 am

1 stop7h 21m

$446

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Sat 5/30

6:00 am-4:31 pm

2 stops12h 31m

Rapid City

Wed 6/3

12:41 pm-12:41 am

2 stops10h 00m

$472

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Thu 7/23

1:25 pm-9:31 pm

2 stops10h 06m

Rapid City

Mon 7/27

3:25 pm-12:37 am

1 stop7h 12m

$495

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

$506

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-8:23 pm

2 stops11h 53m

$511

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

$516

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Thu 7/23

6:00 am-11:14 am

1 stop7h 14m

Rapid City

Mon 7/27

3:25 pm-12:37 am

1 stop7h 12m

$521

PortlandRapid City

PWM - RAP

PWMRAP

Portland

Thu 7/23

1:25 pm-9:31 pm

2 stops10h 06m

Rapid City

Mon 7/27

3:25 pm-12:37 am

1 stop7h 12m

$534

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 29% 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 24m

Direct flights

None
The fastest flight from Portland, Maine to Rapid City takes 6h 24m
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

Frequently asked questions about flying from Portland, Maine to Rapid City

  • 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 24m, 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
United AirlinesPriceFrom $308Free CancellationRating
7.4
9,730 reviews
Search United Airlines flights
American AirlinesPriceFrom $422Free CancellationRating
7.1
11,654 reviews
Search American 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
Custer
Spearfish
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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