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$336+ Cheap flights from Sioux Falls to Portland, ME (FSD - PWM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — PWM
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
1 adult, Economy
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Cheap flight deals from Sioux Falls to Portland

Cheapest flights from Sioux Falls to Portland
Explore the most affordable flight options available from Sioux Falls to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.

This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:15 am
FSD
-
PWM
1 stop4h 40m
Delta
Wed 10/213:00 pm
PWM
-
FSD
2 stops8h 51m
Delta
Deal found 6/8$336
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:15 am
FSD
-
PWM
1 stop4h 40m
Delta
Tue 10/271:35 pm
PWM
-
FSD
1 stop9h 37m
Delta
Deal found 6/6$356
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:06 pm
FSD
-
PWM
2 stops8h 15m
American Airlines
Tue 9/87:28 am
PWM
-
FSD
2 stops10h 25m
American Airlines
Deal found 6/7$398
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:47 am
FSD
-
PWM
2 stops10h 37m
United Airlines
Tue 9/84:57 pm
PWM
-
FSD
1 stop6h 55m
United Airlines
Deal found 6/9$408
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:47 am
FSD
-
PWM
1 stop5h 47m
United Airlines
Tue 9/84:57 pm
PWM
-
FSD
1 stop6h 55m
United Airlines
Deal found 6/8$413
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/149:14 am
FSD
-
PWM
2 stops12h 43m
United Airlines
Tue 11/179:10 am
PWM
-
FSD
2 stops12h 36m
United Airlines
Deal found 6/7$423
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:04 am
FSD
-
PWM
1 stop4h 41m
Delta
Thu 10/86:00 am
PWM
-
FSD
2 stops17h 51m
Delta
Deal found 6/8$424
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:00 am
FSD
-
PWM
1 stop4h 45m
Delta
Tue 9/84:50 pm
PWM
-
FSD
2 stops6h 56m
Delta
Deal found 6/8$426

Find flight deals from Sioux Falls to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$336
(Delta)

Popular in

January

Cheapest in

November

Average price

$693
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Portland flights.
Search Deals
From Sioux Falls Joe Foss Field to Portland
Search Deals
Highest demand for flights based on searches. 40% potential increase in price ($380 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux Falls to Portland 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2026.
Use the filters below to find and compare flights from Sioux Falls to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 10/23

10:58 am-11:06 pm

2 stops11h 08m

Portland

Tue 10/27

10:00 am-10:12 pm

2 stops13h 12m

$366

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Wed 9/2

7:47 am-7:24 pm

2 stops10h 37m

Portland

Tue 9/8

4:57 pm-10:52 pm

1 stop6h 55m

$408

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Tue 9/1

7:47 am-2:34 pm

1 stop5h 47m

Portland

Tue 9/8

4:57 pm-10:52 pm

1 stop6h 55m

$413

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Sat 11/14

3:16 pm-11:59 pm

2 stops7h 43m

Portland

Tue 11/17

4:48 pm-11:36 pm

1 stop7h 48m

$418
Quickest round-trip

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Wed 9/2

5:00 am-10:45 am

1 stop4h 45m

Portland

Tue 9/8

4:50 pm-10:46 pm

2 stops6h 56m

$426

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Tue 9/1

1:26 pm-12:59 am

2 stops10h 33m

Portland

Tue 9/8

4:50 pm-10:46 pm

2 stops6h 56m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Sorted by cheapest first

Compare providers for flights from Sioux Falls to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux Falls to Portland in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sioux Falls-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux Falls-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sioux Falls to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Sioux Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to Portland

How much does it cost to fly round-trip from Sioux Falls to Portland, Maine?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated June 12, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Sioux Falls to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,400 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,400 reviews
Delta
7.9
Good
8,400 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,810 reviews
Delta
7.9
Good
8,400 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,644 reviews
Delta
7.9
Good
8,400 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sioux Falls to Portland, Maine?

    For as low as $408, Delta can have you in Portland, Maine from Sioux Falls in 10h 37m. Airlines will cover a distance of 1316 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Sioux Falls to Portland, Maine round-trip?

    Delta, at $164, was found to be the cheapest airline from Sioux Falls to Portland, Maine.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is currently priced 70% below the average price you’ll pay for this route.

  • Can I find deals for flights from Sioux Falls to Portland that include hotel bookings?

    Yes. In addition to deals on Sioux Falls to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux Falls to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Portland.

  • Can I find deals for business class flights from Sioux Falls to Portland?

    Yes. Cheapflights offers flight deals from Sioux Falls to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Lewiston
Conway

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Alternative routes for Sioux Falls to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Boston flights
Rapid City to Boston flights

Top 3 airlines flying from Sioux Falls to Portland

Discover the top 3 airlines that operate flights from Sioux Falls to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$164Average$339FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$446FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$309Average$440FlexibilityNo cancel feeOn-time69%

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