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$305+ Cheap flights from Sioux Falls to Portland, ME (FSD - PWM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — PWM
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 February 11, 2026.

This United Airlines deal was found by Cheapflights users on 2/9. 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.
Tue 2/247:40 am
FSD
-
PWM
1 stop6h 34m
United Airlines
Sat 2/285:45 am
PWM
-
FSD
1 stop6h 01m
United Airlines
Deal found 2/9$339
This American Airlines deal was found by Cheapflights users on 2/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:14 pm
FSD
-
PWM
1 stop10h 20m
American Airlines
Sun 4/55:40 pm
PWM
-
FSD
1 stop6h 15m
American Airlines
Deal found 2/8$382
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 5/287:50 am
FSD
-
PWM
1 stop5h 36m
United Airlines
Thu 6/44:58 pm
PWM
-
FSD
1 stop5h 40m
United Airlines
Deal found 2/10$438
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 2/143:15 pm
FSD
-
PWM
1 stop4h 54m
United Airlines
Wed 2/185:45 am
PWM
-
FSD
1 stop6h 01m
United Airlines
Deal found 2/9$479
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/206:50 am
FSD
-
PWM
1 stop9h 17m
American Airlines
Sun 3/226:17 am
PWM
-
FSD
1 stop6h 21m
American Airlines
Deal found 2/9$539
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 5/2812:02 pm
FSD
-
PWM
1 stop11h 05m
American Airlines
Thu 6/45:48 am
PWM
-
FSD
2 stops12h 06m
American Airlines
Deal found 2/10$544

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(United Airlines)

One-way from

$305
(United Airlines)

Popular in

January

Cheapest in

November

Average price

$918
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.
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From Sioux Falls Joe Foss Field to Portland
Search Deals
One-way flight from Sioux Falls Joe Foss Field to Portland
Search Deals
Highest demand for flights based on searches. 42% potential increase in price ($399 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 11, 2026.
Use the filters below to find and compare flights from Sioux Falls to Portland that are best for you.

Fly from

Sioux Falls

Fly to

Portland

Route

Depart

Return

Price

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Tue 2/24

7:40 am-3:14 pm

1 stop6h 34m

Portland

Sat 2/28

5:45 am-10:46 am

1 stop6h 01m

$339

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Wed 4/1

12:14 pm-11:34 pm

1 stop10h 20m

Portland

Sun 4/5

5:40 pm-10:55 pm

1 stop6h 15m

$382

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Thu 5/28

7:50 am-2:26 pm

1 stop5h 36m

Portland

Thu 6/4

4:58 pm-9:38 pm

1 stop5h 40m

$438

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 3/20

6:50 am-5:07 pm

1 stop9h 17m

Portland

Sun 3/22

6:17 am-11:38 am

1 stop6h 21m

$539

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Thu 5/28

12:02 pm-12:07 am

1 stop11h 05m

Portland

Thu 6/4

5:48 am-4:54 pm

2 stops12h 06m

$544

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 6/12

7:50 am-9:58 pm

1 stop13h 08m

Portland

Sun 6/14

6:00 am-9:38 pm

1 stop16h 38m

$547

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Thu 5/28

7:50 am-2:26 pm

1 stop5h 36m

$305

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Thu 5/28

4:44 pm-9:22 am

2 stops15h 38m

$390

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Thu 5/28

7:02 pm-4:16 pm

3 stops44h 14m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

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 February.
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

What is the cheapest month to book a flight from Sioux Falls to Portland, Maine?

Currently, November is the cheapest month in which you can book a flight from Sioux Falls to Portland, Maine (average of $204). Flying from Sioux Falls to Portland, Maine in February is currently the most expensive (average of $395). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 February 11, 2026.
See what other customers who have flown with Delta, United Airlines, and American 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
8,180 reviews

Food

7.2

Overall

7.9

Comfort

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,180 reviews
Delta
7.9
Good
8,180 reviews

Food

7.2

Overall

7.9

Comfort

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,274 reviews
Delta
7.9
Good
8,180 reviews

Food

7.2

Overall

7.9

Comfort

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,266 reviews
Delta
7.9
Good
8,180 reviews

Food

7.2

Overall

7.9

Comfort

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 $339, United Airlines can have you in Portland, Maine from Sioux Falls in 6h 34m. 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 69% 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.

  • What is the cheapest month to book a flight from Sioux Falls to Portland, Maine?

    Currently, November is the cheapest month in which you can book a flight from Sioux Falls to Portland, Maine (average of $204). Flying from Sioux Falls to Portland, Maine in February is currently the most expensive (average of $395). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Auburn
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.
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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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$164Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$379FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$306Average$519FlexibilityNo cancel feeOn-time69%

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