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

Allegiant Air 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 2 as of December 2025.

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.

$214 Cheap Flights from Rapid City to Portland in 2025/26

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 $322 to $505. The lowest price recently found on this route was $279.

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Find the cheapest flights from Rapid City to Portland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:08 pm - 10:11 pm

RAP

PDX

9h 03m1 stop

12:35 pm - 9:15 pm

PDX

RAP

7h 40m1 stop

$279American Airlines

Fri, Jan 9 - Wed, Jan 14

12:35 pm - 11:06 pm

RAP

PDX

11h 31m2 stops

3:45 pm - 10:29 pm

PDX

RAP

5h 44m1 stop

$284United Airlines

Fri, Jan 9 - Wed, Jan 14

5:10 am - 9:45 am

RAP

PDX

5h 35m1 stop

3:45 pm - 10:29 pm

PDX

RAP

5h 44m1 stop

$287United Airlines

Sat, Jan 17 - Tue, Jan 20

2:40 pm - 12:39 am

RAP

PDX

10h 59m2 stops

3:45 pm - 10:29 pm

PDX

RAP

5h 44m1 stop

$292United Airlines

Sat, Jan 17 - Tue, Jan 20

10:45 am - 6:56 pm

RAP

PDX

9h 11m2 stops

1:35 pm - 10:29 pm

PDX

RAP

7h 54m2 stops

$301United Airlines

Fri, Jan 9 - Wed, Jan 14

2:40 pm - 11:06 pm

RAP

PDX

9h 26m2 stops

7:45 am - 7:14 pm

PDX

RAP

10h 29m2 stops

$386United Airlines

Sat, Jan 17 - Tue, Jan 20

Delta flights from Rapid City to Portland

Our best Delta deals on Rapid City to Portland flight tickets

Delta

Jan 9

RAP6:00 amRapid City

7h 46m

1 stop

PDX12:46 pmPortland

Jan 14

PDX6:00 amPortland

8h 25m

1 stop

RAP3:25 pmRapid City

$279

Find similar

Delta

Dec 24

RAP6:19 amRapid City

10h 57m

2 stops

PDX4:16 pmPortland

Dec 28

PDX6:15 amPortland

8h 19m

1 stop

RAP3:34 pmRapid City

$999

Find similar

Delta

Dec 24

RAP6:19 amRapid City

11h 05m

2 stops

PDX4:24 pmPortland

Dec 28

PDX5:30 amPortland

9h 04m

2 stops

RAP3:34 pmRapid City

$1,157

Find similar

United Airlines flights from Rapid City to Portland

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

United Airlines

Jan 9

RAP12:35 pmRapid City

11h 31m

2 stops

PDX11:06 pmPortland

Jan 14

PDX3:45 pmPortland

5h 44m

1 stop

RAP10:29 pmRapid City

$284

Find similar

United Airlines

Jan 17

RAP5:10 amRapid City

5h 35m

1 stop

PDX9:45 amPortland

Jan 20

PDX3:45 pmPortland

5h 44m

1 stop

RAP10:29 pmRapid City

$287

Find similar

United Airlines

Jan 17

RAP2:40 pmRapid City

10h 59m

2 stops

PDX12:39 amPortland

Jan 20

PDX3:45 pmPortland

5h 44m

1 stop

RAP10:29 pmRapid City

$292

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 1/9

2:08 pm-10:11 pm

1 stop9h 03m

Portland

Wed 1/14

12:35 pm-9:15 pm

1 stop7h 40m

$279

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 1/9

12:35 pm-11:06 pm

2 stops11h 31m

Portland

Wed 1/14

3:45 pm-10:29 pm

1 stop5h 44m

$284

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 1/17

5:10 am-9:45 am

1 stop5h 35m

Portland

Tue 1/20

3:45 pm-10:29 pm

1 stop5h 44m

$287

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 1/17

2:40 pm-12:39 am

2 stops10h 59m

Portland

Tue 1/20

3:45 pm-10:29 pm

1 stop5h 44m

$292

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 1/9

10:45 am-6:56 pm

2 stops9h 11m

Portland

Wed 1/14

1:35 pm-10:29 pm

2 stops7h 54m

$301

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 1/17

2:40 pm-11:06 pm

2 stops9h 26m

Portland

Tue 1/20

7:45 am-7:14 pm

2 stops10h 29m

$386

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 12/21

3:13 pm-7:50 pm

1 stop29h 37m

$306

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 12/21

10:20 pm-5:11 pm

2 stops19h 51m

$320

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sun 12/21

10:20 pm-7:50 pm

3 stops22h 30m

$324

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 February. Flight prices, which tend to average around $258, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in February, then you should wait until May to fly from Rapid City, when ticket prices are also cheap, with an average price of $315.

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Thursday when prices can be found for as low as $406. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Monday, with ticket prices averaging around $601.

What is the cheapest time of day to depart on your flight to Portland?

The cheapest time of day to fly to Portland is in the morning when flights can be purchased for as low as $408. At noon is when there is more demand to fly to Portland, so prices are often more expensive at around $471 per ticket.

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	5h 35m
Direct flights	None

The fastest flight from Rapid City to Portland takes 5h 35m

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. 5h 35m 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 2 as of December 2025.
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 84% of the total bookings. Other popular airlines include Delta with 16%.

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
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 8,010 reviews		Search Delta flights
United Airlines	PriceFrom $283	Free Cancellation	Rating 7.4 9,094 reviews		Search United Airlines flights

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

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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?

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