$260 Find Cheap Flights from Portland to South Dakota - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to South Dakota departing on 7/31. 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

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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

Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
5:15 am - 12:24 pm
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RAP
9h 09m
2 stops
United Airlines Logo
1:31 pm - 9:23 pm
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5h 52m
1 stop
$354United Airlines
Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
5:15 am - 12:24 pm
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RAP
9h 09m
2 stops
United Airlines Logo
12:30 pm - 11:59 pm
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9h 29m
2 stops
$359United Airlines
Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
6:03 am - 10:26 am
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RAP
6h 23m
1 stop
United Airlines Logo
5:00 am - 3:51 pm
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8h 51m
1 stop
$422United Airlines
Wed, Sep 30 - Sun, Oct 4
American Airlines Logo
7:32 am - 5:37 pm
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RAP
12h 05m
2 stops
American Airlines Logo
6:30 am - 6:46 pm
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10h 16m
1 stop
$479American Airlines
Wed, Sep 30 - Sun, Oct 4
American Airlines Logo
6:30 am - 5:37 pm
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RAP
13h 07m
1 stop
American Airlines Logo
6:07 pm - 12:11 pm
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16h 04m
1 stop
$484American Airlines
Wed, Sep 30 - Sun, Oct 4
American Airlines Logo
6:00 am - 5:37 pm
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RAP
13h 37m
2 stops
American Airlines Logo
6:07 pm - 11:25 am
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15h 18m
2 stops
$485American Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
6:00 am - 10:15 am
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RAP
6h 15m
1 stop
United Airlines Logo
1:37 pm - 9:46 pm
RAP
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PWM
6h 09m
1 stop
$488United Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
6:00 am - 10:15 am
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RAP
6h 15m
1 stop
United Airlines Logo
7:05 am - 8:22 pm
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PWM
11h 17m
2 stops
$494United Airlines
Thu, Oct 15 - Sun, Oct 18
United Airlines Logo
6:00 am - 10:15 am
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RAP
6h 15m
1 stop
United Airlines Logo
1:37 pm - 9:46 pm
RAP
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PWM
6h 09m
1 stop
$506United Airlines
Wed, Sep 23 - Sat, Sep 26
United Airlines Logo
6:00 am - 10:26 am
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RAP
6h 26m
1 stop
United Airlines Logo
11:17 am - 11:59 pm
RAP
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PWM
10h 42m
2 stops
$509United Airlines
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.

Which airlines provide the cheapest flights from Portland to South Dakota?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Portland to South Dakota were found on United Airlines ($354) and American Airlines ($479).

Good to know

Cheapest flight

$260
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.

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 10031 reviews
8.1Crew
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

The international portion was good. Food and beverage options were good. The sustainable wooden eatery was less than desirable. Your Star Alliance partner ANA provided real silverware. I'm 6'3" & 198 lbs and felt cramped in the exit row. How can that be? Flight attendant all had a pleasant disposition which is always good.

8.0 ExcellentWaymon, Jul 2026
GPT - IAH
Read more United Airlines reviews

The international portion was good. Food and beverage options were good. The sustainable wooden eatery was less than desirable. Your Star Alliance partner ANA provided real silverware. I'm 6'3" & 198 lbs and felt cramped in the exit row. How can that be? Flight attendant all had a pleasant disposition which is always good.

Flight was late to take off Plane broke down Had to move everyone to another plane Told we weren’t going to LGA but Newark Also told we would be taken to NY But United lied and we ended up at Newark at 2 in the morning Horrible experience. And the experience of trying to get compensation from United is just as bad. They could not care less about their passengers Never again!

Flight was late, the only reason I almost missed my flight was that my connection was also late.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

Our flight gor canceled and there was no one to help us but told us to scan the qr code and fill the forms on-line. Very poor service especially we are tourists traveling to Washington DC for the 1st time.

Onboard staff was courteous, helpful, responsive and friendly. The boarding process was disorganized, poorly communicated, and disheveled. Gate agents were yelling instead of using the PA system, didn’t communicate the timing delay of our flight, and created an atmosphere of chaos rather than order and communication. As far as I know, there was no reason for their. I would hate to see how it operated under extreme conditions. I’ve never seen United Airlines operations in such a state.

Both my flight where delayed Had 25min to make it to my transfer flight

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

They changed my flight 5 hours before it took off and changed my connecting airport messing up my entire 1st day in Japan.

Worst communication. Delayed boarding for two hours without a single announcement until hour 1 had passed - on time status showing until our flight was supposed to takeoff and the crew had already walked away. No one was boarding. Disgusting part of DFW overcrowded with no AC on a 97 degree day. Then the first app update is that we’d take off in 15 mins… but again no one had boarded a full flight. No announcement in the terminal so everyone is just crowded around a disgusting place with no info for over an hour which turned into two. This was an overfill flight and a disgrace to passenger decency all while likely just trying to fix their own issue of overbooking. The worst airline at the worst airport.

My seat had a worn out cushion, which made it a bit uncomfortable. Other than that, the flight was excellent.

My flight was 4 hours delayed on departure at 6a causing me to miss my connection at DCA. I had to scramble to find a seat home on a later flight and instead of an exit seat, I was in row 30 on a flight getting me home 5 hours later than planned. The AA team on the ground did a fine job. AA continues to run the airline like the passengers are cargo.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

I have a gluten allergy so did have any food

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

Flight was delayed after boarding and no idea when it would take off. Crew in Portland did arrange for transport to Boston for a different set of flights to my destination.

Seats are so close together. Middle seats should be discounted.

I just for my TSA. So security line is short and upgraded to one group up. I do think the ground crew should learn new way of boarding - the passengers sitting in higher number seat should board first to prevent traffic jam.

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

Information on your arrival and departure airports