Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Portland to South Dakota from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to South Dakota departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland to South Dakota

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:53 pm - 11:04 pm
PDX
-
FSD
7h 11m1 stop
Delta Logo
4:17 pm - 10:54 pm
FSD
-
PDX
8h 37m2 stops
$265Delta
Sat, Jan 10 - Sat, Jan 17
Delta Logo
1:53 pm - 11:04 pm
PDX
-
FSD
7h 11m1 stop
Delta Logo
6:25 am - 12:46 pm
FSD
-
PDX
8h 21m1 stop
$275Delta
Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
5:00 am - 1:12 pm
PDX
-
RAP
7h 12m1 stop
United Airlines Logo
12:35 pm - 6:10 pm
RAP
-
PDX
6h 35m1 stop
$279United Airlines
Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
1:24 pm - 7:14 pm
PDX
-
RAP
4h 50m1 stop
United Airlines Logo
2:40 pm - 10:44 pm
RAP
-
PDX
9h 04m2 stops
$284United Airlines
Wed, Jan 14 - Wed, Jan 21
Delta Logo
1:53 pm - 11:04 pm
PDX
-
FSD
7h 11m1 stop
Delta Logo
4:17 pm - 8:12 pm
FSD
-
PDX
5h 55m1 stop
$289Delta
Fri, Jan 9 - Mon, Jan 12
United Airlines Logo
1:35 pm - 10:29 pm
PDX
-
RAP
7h 54m2 stops
United Airlines Logo
10:45 am - 6:56 pm
RAP
-
PDX
9h 11m2 stops
$289United Airlines
Wed, Jan 14 - Wed, Jan 21
Delta Logo
1:39 pm - 11:04 pm
PDX
-
FSD
7h 25m2 stops
Delta Logo
4:17 pm - 8:12 pm
FSD
-
PDX
5h 55m1 stop
$294Delta
Fri, Jan 9 - Mon, Jan 12
Delta Logo
2:11 pm - 10:41 pm
PDX
-
RAP
7h 30m1 stop
Delta Logo
6:00 am - 12:46 pm
RAP
-
PDX
7h 46m1 stop
$294Delta
Thu, Jan 1 - Sat, Jan 10
Delta Logo
1:39 pm - 11:04 pm
PDX
-
FSD
7h 25m2 stops
Delta Logo
4:17 pm - 10:54 pm
FSD
-
PDX
8h 37m2 stops
$299Delta
Fri, Jan 9 - Mon, Jan 12
Delta Logo
1:53 pm - 10:28 pm
PDX
-
RAP
7h 35m1 stop
Delta Logo
10:54 am - 5:35 pm
RAP
-
PDX
7h 41m1 stop
$339Delta
Wed, Jan 14 - Mon, Jan 19

Delta flights from Portland to South Dakota

Our best Delta deals on Portland to South Dakota flight tickets
Delta
Jan 10
PDX1:53 pmPortland
7h 11m
1 stop
FSD11:04 pmSioux Falls Joe Foss Field
Jan 17
FSD4:17 pmSioux Falls Joe Foss Field
8h 37m
2 stops
PDX10:54 pmPortland
$265
Find similar
Delta
Jan 10
PDX1:53 pmPortland
7h 11m
1 stop
FSD11:04 pmSioux Falls Joe Foss Field
Jan 17
FSD6:25 amSioux Falls Joe Foss Field
8h 21m
1 stop
PDX12:46 pmPortland
$275
Find similar
Delta
Jan 9
PDX1:53 pmPortland
7h 11m
1 stop
FSD11:04 pmSioux Falls Joe Foss Field
Jan 12
FSD4:17 pmSioux Falls Joe Foss Field
5h 55m
1 stop
PDX8:12 pmPortland
$289
Find similar

United Airlines flights from Portland to South Dakota

Our best United Airlines deals on Portland to South Dakota flight tickets
United Airlines
Jan 14
PDX5:00 amPortland
7h 12m
1 stop
RAP1:12 pmRapid City
Jan 21
RAP12:35 pmRapid City
6h 35m
1 stop
PDX6:10 pmPortland
$279
Find similar
United Airlines
Jan 14
PDX1:24 pmPortland
4h 50m
1 stop
RAP7:14 pmRapid City
Jan 21
RAP2:40 pmRapid City
9h 04m
2 stops
PDX10:44 pmPortland
$284
Find similar
United Airlines
Jan 14
PDX1:35 pmPortland
7h 54m
2 stops
RAP10:29 pmRapid City
Jan 21
RAP10:45 amRapid City
9h 11m
2 stops
PDX6:56 pmPortland
$289
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to South Dakota that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Portland to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 1/10

1:53 pm-11:04 pm

1 stop7h 11m

Sioux Falls Joe Foss Field

Sat 1/17

4:17 pm-10:54 pm

2 stops8h 37m

$265

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 1/10

1:53 pm-11:04 pm

1 stop7h 11m

Sioux Falls Joe Foss Field

Sat 1/17

6:25 am-12:46 pm

1 stop8h 21m

$275

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 1/14

5:00 am-1:12 pm

1 stop7h 12m

Rapid City

Wed 1/21

12:35 pm-6:10 pm

1 stop6h 35m

$279

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 1/14

1:24 pm-7:14 pm

1 stop4h 50m

Rapid City

Wed 1/21

2:40 pm-10:44 pm

2 stops9h 04m

$284

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Fri 1/9

1:53 pm-11:04 pm

1 stop7h 11m

Sioux Falls Joe Foss Field

Mon 1/12

4:17 pm-8:12 pm

1 stop5h 55m

$289

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 1/14

1:35 pm-10:29 pm

2 stops7h 54m

Rapid City

Wed 1/21

10:45 am-6:56 pm

2 stops9h 11m

$289

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Fri 1/9

1:39 pm-11:04 pm

2 stops7h 25m

Sioux Falls Joe Foss Field

Mon 1/12

4:17 pm-8:12 pm

1 stop5h 55m

$294

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 1/1

2:11 pm-10:41 pm

1 stop7h 30m

Rapid City

Sat 1/10

6:00 am-12:46 pm

1 stop7h 46m

$294

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Fri 1/9

1:39 pm-11:04 pm

2 stops7h 25m

Sioux Falls Joe Foss Field

Mon 1/12

4:17 pm-10:54 pm

2 stops8h 37m

$299

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 1/14

1:53 pm-10:28 pm

1 stop7h 35m

Rapid City

Mon 1/19

10:54 am-5:35 pm

1 stop7h 41m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to South Dakota from

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

What is the cheapest month to fly to South Dakota?

The month of August is, on average, the cheapest month to fly to South Dakota from Portland, with most prices found around $289. If you aren’t able to travel to South Dakota during the month of August, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $299.

What is the cheapest day to depart on your flight to South Dakota?

The cheapest day to depart from Portland to South Dakota is on a Tuesday. Travelers who choose to depart for South Dakota on a Tuesday will often find tickets for as low as $392. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $553. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.

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

The cheapest time of day to fly to South Dakota is in the evening when flights can be purchased for as low as $373. In the morning is when there is more demand to fly to South Dakota, so prices are often more expensive at around $500 per ticket.

How far in advance should I book a flight 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 $384 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 $305 on momondo.

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

You could potentially save up to 34% 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 27m

Direct flights

None
The fastest flight from Portland to South Dakota takes 5h 27m
There are no direct flights from Portland to South Dakota. There are no popular flight routes from Portland to South Dakota.
Search flight deals

  • 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?

  • 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
FrontierPriceFrom $130Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
DeltaPriceFrom $238Free CancellationRating
7.9
8,010 reviews
Search Delta flights
American AirlinesPriceFrom $259Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
9,094 reviews
Search United Airlines 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.

An easier way to manage your South Dakota trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 1/15
Thu 1/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to South Dakota

Popular cities in South Dakota

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $45
Flights to Los Angelesfrom $48
Flights to Miamifrom $49
Flights to Chicagofrom $58
Flights to Orlandofrom $40
Flights to San Franciscofrom $58
Flights to Las Vegasfrom $49
Flights to Washington, D.C.from $57
Flights to Bostonfrom $51
Flights to Atlantafrom $46
Flights to Dallasfrom $57
Flights to Seattlefrom $58