What is the cheapest airline that flies from Rapid City to Portland?

United Airlines is the most popular carrier operating from Rapid City to Portland

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

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

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

The number of operators available for flights from Rapid City Airport to Portland Airport is 1 as of January 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$188 Cheap Flights from Rapid City to Portland in 2026

Q: What is the typical price of a round-trip flight between Rapid City and Portland?

Prices are currently low for flights on this route. Typical prices usually range from $349 to $452. The lowest price recently found on this route was $279.

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Find the cheapest flights from Rapid City to Portland

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:44 pm

RAP

PDX

7h 44m

1 stop

6:00 am - 3:44 pm

PDX

RAP

8h 44m

1 stop

$279Delta

Sun, Feb 22 - Sun, Mar 1

5:40 pm - 11:14 pm

RAP

PDX

6h 34m

1 stop

11:59 pm - 8:44 pm

PDX

RAP

19h 45m

2 stops

$467United Airlines

Sun, Feb 22 - Sun, Mar 1

6:00 am - 3:11 pm

RAP

PDX

10h 11m

2 stops

5:30 am - 3:44 pm

PDX

RAP

9h 14m

2 stops

$796Delta

Sun, Feb 22 - Sun, Mar 1

Delta flights from Rapid City to Portland

Our best Delta deals on Rapid City to Portland flight tickets

Delta

Feb 22

RAP6:00 amRapid City

7h 44m

1 stop

PDX12:44 pmPortland

Mar 1

PDX6:00 amPortland

8h 44m

1 stop

RAP3:44 pmRapid City

$279

Delta

Feb 11

RAP6:00 amRapid City

7h 46m

1 stop

PDX12:46 pmPortland

Feb 15

PDX6:00 amPortland

8h 44m

1 stop

RAP3:44 pmRapid City

$309

Delta

Feb 11

RAP6:00 amRapid City

11h 30m

2 stops

PDX4:30 pmPortland

Feb 15

PDX6:00 amPortland

8h 44m

1 stop

RAP3:44 pmRapid City

$314

United Airlines flights from Rapid City to Portland

Our best United Airlines deals on Rapid City to Portland flight tickets

United Airlines

Jan 30

RAP5:10 amRapid City

5h 35m

1 stop

PDX9:45 amPortland

Feb 3

PDX8:30 amPortland

5h 52m

1 stop

RAP3:22 pmRapid City

$409

United Airlines

Jan 30

RAP5:10 amRapid City

8h 23m

2 stops

PDX12:33 pmPortland

Feb 3

PDX8:30 amPortland

5h 52m

1 stop

RAP3:22 pmRapid City

$414

United Airlines

Jan 30

RAP5:10 amRapid City

8h 23m

2 stops

PDX12:33 pmPortland

Feb 3

PDX7:45 amPortland

8h 27m

2 stops

RAP5:12 pmRapid City

$420

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 2/22

6:00 am-12:44 pm

1 stop7h 44m

Portland

Sun 3/1

6:00 am-3:44 pm

1 stop8h 44m

$279

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 2/22

5:40 pm-11:14 pm

1 stop6h 34m

Portland

Sun 3/1

11:59 pm-8:44 pm

2 stops19h 45m

$467

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 2/22

6:00 am-3:11 pm

2 stops10h 11m

Portland

Sun 3/1

5:30 am-3:44 pm

2 stops9h 14m

$796

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 5/7

5:57 pm-8:59 am

1 stop16h 02m

$188

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 5/7

5:57 pm-11:03 am

2 stops18h 06m

$238

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 5/7

4:13 pm-12:43 pm

3 stops21h 30m

$420

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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

Prices

Airlines

What is the typical price of a round-trip flight between Rapid City and Portland?

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Rapid City is in May. Flight prices, which tend to average around $315, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in May, then you should wait until July to fly from Rapid City, when ticket prices are also cheap, with an average price of $318.

When to book flights from Rapid City to Portland

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

Estimated round-trip price

Cheap Rapid City to Portland (RAP to PDX) flight deals and tips

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

Fastest flight time	6h 22m
Direct flights	None

The fastest flight from Rapid City to Portland takes 6h 22m

There are no direct flights from Rapid City to Portland. There are no popular flight routes from Rapid City to Portland.

Search flight deals

How far is Rapid City to Portland by plane?
The distance between Rapid City and Portland is about 955.5 mi. 6h 22m is a normal flight duration for this route.
When did momondo last update prices for flights from Rapid City Airport to Portland Airport?
Prices for flights from Rapid City Airport to Portland Airport were last updated today.
How many operators does momondo search for flights from Rapid City Airport to Portland Airport?
The number of operators available for flights from Rapid City Airport to Portland Airport is 1 as of January 2026.
How old do you have to be to fly from Rapid City Airport to Portland Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Rapid City to Portland?
Based on momondo bookings for flights between Rapid City and Portland, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Rapid City to Portland

Compare and see reviews for airlines that fly from Rapid City to Portland with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $283	Free Cancellation	Rating 7.4 9,205 reviews		Search United Airlines flights

Lincoln City

Seaside

Cannon Beach

Vancouver

Salem

Astoria

Long Beach

Depoe Bay

Rockaway Beach

Beaverton

Hillsboro

Hood River

McMinnville

Tigard

Longview

Gresham

Pacific City

The Dalles

Manzanita

Newberg

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rapid City to Portland. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Portland from Rapid City which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Rapid City to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Rapid City to Portland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.