What airlines fly to South Dakota?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to South Dakota from Portland according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 4 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Portland to South Dakota?

Frontier, Allegiant Air, and American Airlines are the most popular carriers operating from Portland to South Dakota

When did momondo last update prices for flights from Portland Airport to South Dakota?

Prices for flights from Portland Airport to South Dakota were last updated today.

How many operators does momondo search for flights from Portland Airport to South Dakota?

As of April 2026, there are 4 operators available to choose from for flights from Portland Airport to South Dakota.

How old do you have to be to fly from Portland Airport to South Dakota?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to South Dakota.

What documentation or ID do you need to fly to South Dakota?

The necessary travel and health documents for your South Dakota trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$135 Cheap Flights from Portland to South Dakota in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to South Dakota

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:45 pm - 10:57 pm

PDX

FSD

7h 12m

1 stop

5:35 pm - 10:51 pm

FSD

PDX

7h 16m

1 stop

$320American Airlines

Thu, May 28 - Mon, Jun 1

11:59 pm - 9:49 am

PDX

RAP

8h 50m

1 stop

5:02 pm - 11:07 pm

RAP

PDX

7h 05m

1 stop

$339American Airlines

Sat, Sep 5 - Tue, Sep 8

3:00 pm - 11:12 pm

PDX

FSD

6h 12m

1 stop

1:30 pm - 8:15 pm

FSD

PDX

8h 45m

1 stop

$341Delta

Sat, Jun 27 - Tue, Jul 7

3:10 pm - 10:24 pm

PDX

RAP

6h 14m

1 stop

6:50 am - 4:00 pm

RAP

PDX

10h 10m

2 stops

$344Delta

Thu, May 28 - Mon, Jun 1

4:15 pm - 11:53 pm

PDX

FSD

5h 38m

1 stop

6:51 pm - 10:55 pm

FSD

PDX

6h 04m

1 stop

$349United Airlines

Fri, Jun 5 - Mon, Jun 8

1:35 pm - 11:11 pm

PDX

FSD

7h 36m

1 stop

9:15 am - 3:56 pm

FSD

PDX

8h 41m

2 stops

$354Delta

Tue, Jun 2 - Sat, Jun 6

3:10 pm - 10:23 pm

PDX

RAP

6h 13m

1 stop

2:36 pm - 8:11 pm

RAP

PDX

6h 35m

1 stop

$354Delta

Fri, May 8 - Mon, May 11

7:17 pm - 9:00 pm

PDX

RAP

24h 43m

1 stop

4:46 pm - 5:39 pm

RAP

PDX

25h 53m

1 stop

$366Multiple Airlines

Thu, Jun 25 - Fri, Jul 3

7:17 pm - 9:00 pm

PDX

RAP

24h 43m

1 stop

5:21 pm - 10:43 pm

RAP

PDX

6h 22m

1 stop

$367Multiple Airlines

Thu, Jun 25 - Mon, Jun 29

7:15 am - 7:15 pm

PDX

RAP

11h 00m

2 stops

5:20 am - 9:38 am

RAP

PDX

5h 18m

1 stop

$374United Airlines

Tue, May 5 - Sat, May 9

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Delta flights from Portland to South Dakota

Our best Delta deals on Portland to South Dakota flight tickets

Delta

Jun 27

PDX3:00 pmPortland

6h 12m

1 stop

FSD11:12 pmSioux Falls Joe Foss Field

Jul 7

FSD1:30 pmSioux Falls Joe Foss Field

8h 45m

1 stop

PDX8:15 pmPortland

$341

Delta

May 28

PDX3:10 pmPortland

6h 14m

1 stop

RAP10:24 pmRapid City

Jun 1

RAP6:50 amRapid City

10h 10m

2 stops

PDX4:00 pmPortland

$344

Delta

Jun 2

PDX1:35 pmPortland

7h 36m

1 stop

FSD11:11 pmSioux Falls Joe Foss Field

Jun 6

FSD9:15 amSioux Falls Joe Foss Field

8h 41m

2 stops

PDX3:56 pmPortland

$354

United Airlines flights from Portland to South Dakota

Our best United Airlines deals on Portland to South Dakota flight tickets

United Airlines

Jun 5

PDX4:15 pmPortland

5h 38m

1 stop

FSD11:53 pmSioux Falls Joe Foss Field

Jun 8

FSD6:51 pmSioux Falls Joe Foss Field

6h 04m

1 stop

PDX10:55 pmPortland

$349

United Airlines

May 5

PDX7:15 amPortland

11h 00m

2 stops

RAP7:15 pmRapid City

May 9

RAP5:20 amRapid City

5h 18m

1 stop

PDX9:38 amPortland

$374

United Airlines

May 26

PDX5:00 amPortland

5h 30m

1 stop

RAP11:30 amRapid City

Jun 9

RAP5:00 amRapid City

8h 08m

2 stops

PDX12:08 pmPortland

$390

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Thu 5/28

1:45 pm-10:57 pm

1 stop7h 12m

Sioux Falls Joe Foss Field

Mon 6/1

5:35 pm-10:51 pm

1 stop7h 16m

$320

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Sat 9/5

11:59 pm-9:49 am

1 stop8h 50m

Rapid City

Tue 9/8

5:02 pm-11:07 pm

1 stop7h 05m

$339

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 6/27

3:00 pm-11:12 pm

1 stop6h 12m

Sioux Falls Joe Foss Field

Tue 7/7

1:30 pm-8:15 pm

1 stop8h 45m

$341

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 5/28

3:10 pm-10:24 pm

1 stop6h 14m

Rapid City

Mon 6/1

6:50 am-4:00 pm

2 stops10h 10m

$344

Quickest round-trip

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Fri 6/5

4:15 pm-11:53 pm

1 stop5h 38m

Sioux Falls Joe Foss Field

Mon 6/8

6:51 pm-10:55 pm

1 stop6h 04m

$349

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Tue 6/2

1:35 pm-11:11 pm

1 stop7h 36m

Sioux Falls Joe Foss Field

Sat 6/6

9:15 am-3:56 pm

2 stops8h 41m

$354

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Fri 5/8

3:10 pm-10:23 pm

1 stop6h 13m

Rapid City

Mon 5/11

2:36 pm-8:11 pm

1 stop6h 35m

$354

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 6/25

7:17 pm-9:00 pm

1 stop24h 43m

Rapid City

Fri 7/3

4:46 pm-5:39 pm

1 stop25h 53m

$366

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 6/25

7:17 pm-9:00 pm

1 stop24h 43m

Rapid City

Mon 6/29

5:21 pm-10:43 pm

1 stop6h 22m

$367

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Tue 5/5

7:15 am-7:15 pm

2 stops11h 00m

Rapid City

Sat 5/9

5:20 am-9:38 am

1 stop5h 18m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to South Dakota

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 South Dakota?

The month of February is, on average, the cheapest month to fly to South Dakota from Portland, with most prices found around $310. If you aren’t able to travel to South Dakota during the month of February, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $328.

How far in advance should I book a flight from Portland to South Dakota?

You are more likely to see cheaper flights to South Dakota from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to South Dakota for around $408 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South Dakota from Portland for as low as $326 on momondo.

Can stopping save me money on Portland to South Dakota flights?

You could potentially save up to 29% on your flight if you consider stops on a Portland to South Dakota flight.

Cheap Portland to South Dakota flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to South Dakota

Fastest flight time	5h 10m
Direct flights	None

The fastest flight from Portland to South Dakota takes 5h 10m

There are no direct flights from Portland to South Dakota. There are no popular flight routes from Portland to South Dakota.

Search flight deals

Frequently asked questions about flying from Portland to South Dakota

When did momondo last update prices for flights from Portland Airport to South Dakota?
Prices for flights from Portland Airport to South Dakota were last updated today.
How many operators does momondo search for flights from Portland Airport to South Dakota?
As of April 2026, there are 4 operators available to choose from for flights from Portland Airport to South Dakota.
How old do you have to be to fly from Portland Airport to South Dakota?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The necessary travel and health documents for your South Dakota trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portland to South Dakota

Compare and see reviews for airlines that fly from Portland to South Dakota with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $170	Free Cancellation	Rating 5.6 2,981 reviews	Search Frontier flights
United Airlines	PriceFrom $243	Free Cancellation	Rating 7.4 9,635 reviews	Search United Airlines flights
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.1 11,661 reviews	Search American Airlines flights
Delta	PriceFrom $250	Free Cancellation	Rating 7.9 8,438 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to South Dakota?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to South Dakota from Portland.

Can I find flights from Portland to South Dakota with flexible booking policies on momondo?

Flights from Portland to South Dakota with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to South Dakota?

Once you have performed a search for Portland to South Dakota flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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