$357 Find Cheap Flights from Portland to South Dakota

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to South Dakota departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to South Dakota

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to South Dakota, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to South Dakota, as well as popular online travel agencies
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Flight Deals

Book Cheap Portland to South Dakota Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to South Dakota that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to South Dakota

Tue, Mar 17 - Tue, Mar 24
United Airlines Logo
6:00 am - 5:05 pmPWM-RAP
13h 05m2 stops
United Airlines Logo
7:05 am - 11:11 pmRAP-PWM
14h 06m2 stops
$357United Airlines
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Tue, Dec 9 - Sat, Dec 13
Delta Logo
4:53 pm - 10:46 pmPWM-RAP
7h 53m2 stops
Delta Logo
2:51 pm - 10:47 amRAP-PWM
17h 56m2 stops
$373Delta
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Tue, Dec 9 - Sat, Dec 13
Delta Logo
4:53 pm - 10:46 pmPWM-RAP
7h 53m2 stops
Delta Logo
2:51 pm - 11:21 pmRAP-PWM
30h 30m2 stops
$433Delta
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Tue, Dec 9 - Sat, Dec 13
United Airlines Logo
6:00 am - 6:54 pmPWM-RAP
14h 54m3 stops
United Airlines Logo
10:55 am - 11:12 pmRAP-PWM
10h 17m2 stops
$503United Airlines
Find Deal
Mon, Mar 16 - Mon, Mar 23
United Airlines Logo
11:17 am - 10:11 pmPWM-RAP
12h 54m2 stops
United Airlines Logo
5:48 pm - 3:14 pmRAP-PWM
19h 26m2 stops
$692United Airlines
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Tue, Mar 17 - Tue, Mar 24
United Airlines Logo
6:00 am - 3:48 pmPWM-RAP
11h 48m2 stops
United Airlines Logo
7:05 am - 7:36 pmRAP-PWM
10h 31m3 stops
$750United Airlines
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Mon, Mar 16 - Mon, Mar 23
American Airlines Logo
7:50 am - 8:15 pmPWM-RAP
14h 25m3 stops
American Airlines Logo
12:35 pm - 11:40 pmRAP-PWM
9h 05m2 stops
$980American Airlines
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Sun, Mar 15 - Sun, Mar 22
American Airlines Logo
5:20 pm - 11:32 amPWM-RAP
20h 12m2 stops
American Airlines Logo
12:35 pm - 12:00 pmRAP-PWM
21h 25m2 stops
$988American Airlines
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Mon, Mar 16 - Mon, Mar 23
American Airlines Logo
7:50 am - 8:15 pmPWM-RAP
14h 25m3 stops
American Airlines Logo
5:51 am - 10:30 pmRAP-PWM
14h 39m3 stops
$1,190American Airlines
Find Deal
Sun, Mar 15 - Sun, Mar 22
American Airlines Logo
7:50 am - 8:15 pmPWM-RAP
14h 25m2 stops
American Airlines Logo
5:51 am - 10:30 pmRAP-PWM
14h 39m3 stops
$1,191American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Portland to South Dakota flights

Get data-powered insights and trends into flights from Portland to South Dakota to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to South Dakota?

The average price of all round-trip flights from Portland to South Dakota clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Portland to South Dakota, look for departures on Thursdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from South Dakota, Saturday is the cheapest day to fly and Wednesday is the most expensive.

Good to know

Cheapest flight$357
Most popular time to fly with an average 43% increase in price.
Flight from Portland to Rapid City

FAQs - booking South Dakota flights

  • How does KAYAK find such low prices on flights from Portland to South Dakota?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to South Dakota.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to South Dakota?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to South Dakota is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to South Dakota?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to South Dakota with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to South Dakota?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to South Dakota up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South Dakota?

    The cheapest time of day to fly to South Dakota is generally in the afternoon, when round-trip flights cost $601 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to South Dakota is generally in the morning, which is peak travel time and where the average cost of a ticket is $660.

Reviews of the top airlines flying from Portland to South Dakota

 
See real verified KAYAK customer reviews for airlines flying from Portland to South Dakota. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to South Dakota? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9016 reviews
7.1Entertainment
8.1Crew
7.3Comfort
7.7Boarding
6.6Food
Airline reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

10.0 ExcellentDavid, Nov 2025IAD - BTV
Read more United Airlines reviews

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Premium Plus is a really good idea for longer flights

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

Everything was good The connects, with no blame to crew. Or pilots. I understand they are short staffed. Everything went well for me. I'll be using you guys again in May if not sooner.

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

Everything you need to know for your flight from Portland to South Dakota

Information on your arrival and departure airports