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Cheap flights from Sioux Falls to Boston from $368

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux Falls to Boston departing on 1/24. 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

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:30 am - 2:39 pm
FSD
-
PWM
6h 09m1 stop
United Airlines Logo
6:00 am - 8:24 pm
PWM
-
FSD
15h 24m2 stops
$368United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
7:30 am - 6:54 pm
FSD
-
PWM
10h 24m2 stops
United Airlines Logo
6:00 am - 8:24 pm
PWM
-
FSD
15h 24m2 stops
$373United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
7:30 am - 2:39 pm
FSD
-
PWM
6h 09m1 stop
United Airlines Logo
4:10 pm - 5:18 pm
PWM
-
FSD
26h 08m1 stop
$440United Airlines
Sat, Jan 24 - Tue, Jan 27
American Airlines Logo
12:38 pm - 11:29 am
FSD
-
PWM
21h 51m1 stop
American Airlines Logo
7:10 am - 11:32 am
PWM
-
FSD
5h 22m1 stop
$572American Airlines
Fri, May 22 - Sun, May 24
American Airlines Logo
12:38 pm - 11:29 am
FSD
-
PWM
21h 51m1 stop
American Airlines Logo
5:14 am - 4:34 pm
PWM
-
FSD
12h 20m2 stops
$707American Airlines
Fri, May 22 - Sun, May 24
American Airlines Logo
12:38 pm - 10:43 pm
FSD
-
PWM
9h 05m2 stops
American Airlines Logo
5:14 am - 4:34 pm
PWM
-
FSD
12h 20m2 stops
$1,029American Airlines
Fri, May 22 - Sun, May 24

American Airlines flights from Sioux Falls to Portland, Maine

Our best American Airlines deals on Sioux Falls to Portland, Maine flight tickets
American Airlines
May 22
FSD12:38 pmSioux Falls Joe Foss Field
21h 51m
1 stop
PWM11:29 amPortland
May 24
PWM7:10 amPortland
5h 22m
1 stop
FSD11:32 amSioux Falls Joe Foss Field
$572
Find similar
American Airlines
May 22
FSD12:38 pmSioux Falls Joe Foss Field
21h 51m
1 stop
PWM11:29 amPortland
May 24
PWM5:14 amPortland
12h 20m
2 stops
FSD4:34 pmSioux Falls Joe Foss Field
$707
Find similar
American Airlines
May 22
FSD12:38 pmSioux Falls Joe Foss Field
9h 05m
2 stops
PWM10:43 pmPortland
May 24
PWM5:14 amPortland
12h 20m
2 stops
FSD4:34 pmSioux Falls Joe Foss Field
$1,029
Find similar

United Airlines flights from Sioux Falls to Portland, Maine

Our best United Airlines deals on Sioux Falls to Portland, Maine flight tickets
United Airlines
Jan 24
FSD7:30 amSioux Falls Joe Foss Field
6h 09m
1 stop
PWM2:39 pmPortland
Jan 27
PWM6:00 amPortland
15h 24m
2 stops
FSD8:24 pmSioux Falls Joe Foss Field
$368
Find similar
United Airlines
Jan 24
FSD7:30 amSioux Falls Joe Foss Field
10h 24m
2 stops
PWM6:54 pmPortland
Jan 27
PWM6:00 amPortland
15h 24m
2 stops
FSD8:24 pmSioux Falls Joe Foss Field
$373
Find similar
United Airlines
Jan 24
FSD7:30 amSioux Falls Joe Foss Field
6h 09m
1 stop
PWM2:39 pmPortland
Jan 27
PWM4:10 pmPortland
26h 08m
1 stop
FSD5:18 pmSioux Falls Joe Foss Field
$440
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sioux Falls to Portland, Maine 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 23, 2025.
Use the filters below to find and compare flights from Sioux Falls to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Sat 1/24

7:30 am-2:39 pm

1 stop6h 09m

Portland

Tue 1/27

6:00 am-8:24 pm

2 stops15h 24m

$368

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Sat 1/24

7:30 am-6:54 pm

2 stops10h 24m

Portland

Tue 1/27

6:00 am-8:24 pm

2 stops15h 24m

$373

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Sat 1/24

7:30 am-2:39 pm

1 stop6h 09m

Portland

Tue 1/27

4:10 pm-5:18 pm

1 stop26h 08m

$440

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 5/22

12:38 pm-11:29 am

1 stop21h 51m

Portland

Sun 5/24

7:10 am-11:32 am

1 stop5h 22m

$572

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 5/22

12:38 pm-11:29 am

1 stop21h 51m

Portland

Sun 5/24

5:14 am-4:34 pm

2 stops12h 20m

$707

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 5/22

12:38 pm-10:43 pm

2 stops9h 05m

Portland

Sun 5/24

5:14 am-4:34 pm

2 stops12h 20m

$1,029

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 5/22

9:26 am-11:22 am

2 stops24h 56m

$417

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 5/22

9:26 am-11:22 am

2 stops24h 56m

$418

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 5/22

12:38 pm-11:29 am

1 stop21h 51m

$429

Sioux FallsPortland

FSD - PWM

FSDPWM

Sioux Falls Joe Foss Field

Fri 5/22

8:53 pm-7:16 pm

3 stops45h 23m

$459

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Boston from

How to get the cheapest flight ticket from Sioux Falls to Portland, Maine

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 day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Sioux Falls is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $449. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Sioux Falls because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $737.

What is the cheapest time of day to depart on your flight to Portland, Maine?

At noon is the cheapest time of day to fly from Sioux Falls to Portland, Maine when you can find flight prices for as low as $450. Flying to Portland, Maine at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $553. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Sioux Falls to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux Falls to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sioux Falls to Portland, Maine (FSD to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux Falls to Portland, Maine

Fastest flight time

5h 53m

Direct flights

None
The fastest flight from Sioux Falls to Portland, Maine takes 5h 53m
There are no direct flights from Sioux Falls to Portland, Maine. There are no popular flight routes from Sioux Falls to Portland, Maine.
Search flight deals

  • How far is Sioux Falls Joe Foss Field to Portland by plane?

    The straight-line distance from Sioux Falls Joe Foss Field to Portland is 1318.1 mi. Flights usually cover this in 5h 53m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Sioux Falls Joe Foss Field Airport to Portland Airport?

    Prices for flights from Sioux Falls Joe Foss Field Airport to Portland Airport were last updated today.

  • How many operators does momondo search for flights from Sioux Falls Joe Foss Field Airport to Portland Airport?

  • How old do you have to be to fly from Sioux Falls Joe Foss Field Airport to Portland Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Sioux Falls Joe Foss Field Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The necessary travel and health documents for your Portland Airport 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.

  • What is the most popular airline from Sioux Falls to Portland, Maine?

Best airlines flying from Sioux Falls to Portland, Maine

Compare and see reviews for airlines that fly from Sioux Falls to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $188Free CancellationRating
7.9
8,014 reviews
Search Delta flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $306Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Gorham
Auburn
Windham
Intervale
Oxford
Bath
Georgetown
Falmouth
Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Sioux Falls to Portland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Sioux Falls to Portland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Sioux Falls to Portland with flexible booking policies on momondo?

Yes. All flights to Portland from Sioux Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Sioux Falls to Portland?

Once you have performed a search for Sioux Falls to Portland 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 Sioux Falls to Portland right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Sioux Falls to Portland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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