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 July 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

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Find the cheapest flights from Rapid City to Portland

Round-trip

One-way

Last minute

Cheap round-trip flights

5:30 am - 9:28 amRAP-PDX

4h 58m1 stop

5:00 am - 12:38 pmPDX-RAP

6h 38m1 stop

$277United Airlines

Find Deal

Wed, Sep 17 - Sun, Sep 21

4:38 pm - 10:16 pmRAP-PDX

6h 38m1 stop

5:00 am - 12:46 pmPDX-RAP

6h 46m1 stop

$289United Airlines

Find Deal

Wed, Jul 23 - Sun, Jul 27

6:26 am - 12:39 pmRAP-PDX

7h 13m1 stop

12:46 am - 10:14 amPDX-RAP

8h 28m1 stop

$326Delta

Find Deal

Thu, Aug 14 - Sun, Aug 17

5:30 am - 9:32 amRAP-PDX

5h 02m1 stop

4:16 pm - 10:00 pmPDX-RAP

4h 44m1 stop

$329United Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

5:30 am - 12:32 pmRAP-PDX

8h 02m2 stops

5:00 am - 11:36 amPDX-RAP

5h 36m1 stop

$344United Airlines

Find Deal

Wed, Jul 23 - Sun, Jul 27

4:38 pm - 12:27 amRAP-PDX

8h 49m1 stop

12:59 am - 9:55 amPDX-RAP

7h 56m1 stop

$361American Airlines

Find Deal

Fri, Jul 25 - Mon, Jul 28

6:26 am - 6:00 pmRAP-PDX

12h 34m2 stops

12:46 am - 10:14 amPDX-RAP

8h 28m1 stop

$413Delta

Find Deal

Thu, Aug 14 - Sun, Aug 17

9:45 pm - 9:44 amRAP-PDX

12h 59m1 stop

3:10 pm - 5:33 pmPDX-RAP

25h 23m3 stops

$421

Find Deal

Wed, Jul 23 - Sun, Jul 27

3:21 pm - 2:15 pmRAP-PDX

23h 54m3 stops

4:54 pm - 4:38 pmPDX-RAP

22h 44m2 stops

$666

Find Deal

Fri, Jul 25 - Tue, Jul 29

12:03 pm - 10:14 pmRAP-PDX

11h 11m2 stops

12:59 am - 9:55 amPDX-RAP

7h 56m1 stop

$723American Airlines

Find Deal

Fri, Jul 25 - Mon, Jul 28

United Airlines flights from Rapid City to Portland

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

United Airlines

Sep 17

RAP5:30 amRapid City

4h 58m

1 stop

PDX9:28 amPortland

Sep 21

PDX5:00 amPortland

6h 38m

1 stop

RAP12:38 pmRapid City

$277

Find similar

United Airlines

Jul 23

RAP4:38 pmRapid City

6h 38m

1 stop

PDX10:16 pmPortland

Jul 27

PDX5:00 amPortland

6h 46m

1 stop

RAP12:46 pmRapid City

$289

Find similar

United Airlines

Aug 14

RAP5:30 amRapid City

5h 02m

1 stop

PDX9:32 amPortland

Aug 18

PDX4:16 pmPortland

4h 44m

1 stop

RAP10:00 pmRapid City

$329

Find similar

Delta flights from Rapid City to Portland

Our best Delta deals on Rapid City to Portland flight tickets

Delta

Aug 14

RAP6:26 amRapid City

7h 13m

1 stop

PDX12:39 pmPortland

Aug 17

PDX12:46 amPortland

8h 28m

1 stop

RAP10:14 amRapid City

$326

Find similar

Delta

Aug 14

RAP6:26 amRapid City

12h 34m

2 stops

PDX6:00 pmPortland

Aug 17

PDX12:46 amPortland

8h 28m

1 stop

RAP10:14 amRapid City

$413

Find similar

Delta

Jul 12

RAP12:30 pmRapid City

10h 19m

1 stop

PDX9:49 pmPortland

Jul 13

PDX12:40 amPortland

8h 33m

1 stop

RAP10:13 amRapid City

$423

Find similar

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 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 $293, 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

Best Price Found	$219
Fastest flight time	4h 58m
Direct flights	None
Airports in Portland	1 airport

The best one-way flight to Portland from Rapid City in the past 72 hours is $219. The best round-trip flight deal from Rapid City to Portland found on momondo in the last 72 hours is $277.

The fastest flight from Rapid City to Portland takes 4h 58m

There are no direct flights from Rapid City to Portland. Popular non-direct route for this connection is Rapid City Airport - Portland Airport.

There is 1 airport near Portland: Portland (PDX)

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How far is Rapid City to Portland by plane?
The distance between Rapid City and Portland is about 955.5 mi. 4h 58m 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 July 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 90% of the total bookings. Other popular airlines include Delta with 10%.

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 8.0 7,952 reviews		Search Delta flights
United Airlines	PriceFrom $283	Free Cancellation	Rating 7.4 8,846 reviews		Search United Airlines flights

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Why use momondo?

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.