What are the cheapest airlines flying from Sioux Falls to Washington, D.C. Dulles Intl Airport round-trip?

United Airlines, at $259, was found to be the cheapest airline from Sioux Falls to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Delta and American Airlines. United Airlines is currently priced 44% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $197. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Sioux Falls to Washington, D.C. Dulles Intl Airport for a low price.

What is the cheapest month to book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sioux Falls to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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.

What is the cheapest day to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Sioux Falls to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Sioux Falls to Washington, D.C. Dulles Intl Airport?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Washington, D.C. Dulles Intl Airport. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport?

The best pricing can be found in the month of November. Prices to Washington, D.C. Dulles Intl Airport from Sioux Falls average $389. You can even find prices in November for less than $389, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $246. The month of February appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Sioux Falls. Flying in the targeted month can save you up to 75%.

What is the cheapest time of day to fly from FSD to IAD?

It’s optimal to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport at noon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the morning.

What airport do you fly from for flights from Sioux Falls to Washington, D.C. Dulles Intl?

For a flight from Sioux Falls to Washington, D.C. Dulles Intl, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 2 airlines have flights to Washington, D.C. Dulles Intl from Sioux Falls Joe Foss Field on a regular basis.

Can I find deals for flights from Sioux Falls to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Sioux Falls to Dulles Intl?

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

Can I find deals for business class flights from Sioux Falls to Dulles Intl?

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

$197+ Flights from Sioux Falls to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Sioux Falls to Dulles Intl

Round-trip from	$259 (United Airlines)
One-way from	$197 (American Airlines)
Popular in	February
Cheapest in	December
Average price	$492

From Sioux Falls Joe Foss Field to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Sioux Falls Joe Foss Field to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Sioux Falls to Dulles Intl

Cheapest flights from Sioux Falls to Dulles Intl
Explore the most affordable flight options available from Sioux Falls to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2025.

Tue 7/226:26 pmFSD - IAD

1 stop5h 04mUnited Airlines

Sat 7/263:39 pmIAD - FSD

1 stop7h 21mUnited Airlines

Deal found 6/9

$259

Sat 8/165:00 amFSD - IAD

2 stops8h 31mDelta

Tue 8/266:15 amIAD - FSD

1 stop5h 04mDelta

Deal found 6/9

$264

Sun 9/147:00 amFSD - IAD

1 stop8h 50mAmerican Airlines

Sat 9/2011:47 amIAD - FSD

1 stop6h 16mAmerican Airlines

Deal found 6/11

$319

Fri 7/48:06 pmFSD - IAD

1 stop23h 47mMultiple Airlines

Fri 7/1112:55 pmIAD - FSD

3 stops27h 52mMultiple Airlines

Deal found 6/11

$367

Fri 6/208:03 pmFSD - IAD

1 stop23h 49mAllegiant Air

Mon 6/233:13 pmIAD - FSD

2 stops19h 00mAllegiant Air

Deal found 6/9

$405

Wed 6/257:48 pmFSD - IAD

2 stops18h 48mFrontier

Sun 6/299:57 pmIAD - FSD

2 stops21h 35mFrontier

Deal found 6/10

$527

Best flights from Sioux Falls to Dulles Intl
Discover carefully curated flight deals from Sioux Falls to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2025.

Tue 7/226:26 pmFSD - IAD

1 stop5h 04mUnited Airlines

Mon 7/285:13 pmIAD - FSD

1 stop5h 47mUnited Airlines

Deal found 6/10

$259

Sat 8/165:00 amFSD - IAD

2 stops8h 31mDelta

Tue 8/266:15 amIAD - FSD

1 stop5h 04mDelta

Deal found 6/9

$264

Sun 9/147:00 amFSD - IAD

1 stop8h 50mAmerican Airlines

Sat 9/2011:47 amIAD - FSD

1 stop6h 16mAmerican Airlines

Deal found 6/11

$319

Fri 7/48:06 pmFSD - IAD

1 stop23h 47mMultiple Airlines

Fri 7/1112:55 pmIAD - FSD

3 stops27h 52mMultiple Airlines

Deal found 6/11

$367

Wed 6/257:48 pmFSD - IAD

2 stops18h 48mFrontier

Sun 6/299:57 pmIAD - FSD

2 stops21h 35mFrontier

Deal found 6/10

$527

Last-minute flights from Sioux Falls to Dulles Intl
Discover last-minute flight deals from Sioux Falls to Dulles Intl. Data last updated June 11, 2025 and is based on user searches.

Wed 6/185:15 amFSD - IAD

1 stop5h 39mDelta

Tue 7/15:29 pmIAD - FSD

1 stop6h 41mDelta

Deal found 6/9

$434

Wed 6/186:20 amFSD - IAD

2 stops12h 24mAmerican Airlines

Tue 7/16:27 amIAD - FSD

1 stop7h 07mAmerican Airlines

Deal found 6/10

$475

Fri 6/208:03 pmFSD - IAD

1 stop23h 49mAllegiant Air

Mon 6/233:13 pmIAD - FSD

2 stops19h 00mAllegiant Air

Deal found 6/9

$405

Fri 6/206:35 pmFSD - IAD

1 stop4h 55mUnited Airlines

Mon 6/235:18 pmIAD - FSD

1 stop5h 34mUnited Airlines

Deal found 6/9

$573

Wed 6/257:48 pmFSD - IAD

2 stops18h 48mFrontier

Sun 6/299:57 pmIAD - FSD

2 stops21h 35mFrontier

Deal found 6/10

$527

Thu 6/261:09 pmFSD - IAD

1 stop8h 30mAmerican Airlines

Mon 6/306:55 amIAD - FSD

2 stops16h 55mAmerican Airlines

Deal found 6/9

$373

Fri 7/48:06 pmFSD - IAD

1 stop23h 47mMultiple Airlines

Fri 7/1112:55 pmIAD - FSD

3 stops27h 52mMultiple Airlines

Deal found 6/11

$367

Tue 7/226:26 pmFSD - IAD

1 stop5h 04mUnited Airlines

Mon 7/285:13 pmIAD - FSD

1 stop5h 47mUnited Airlines

Deal found 6/10

$259

Tue 7/223:16 pmFSD - IAD

1 stop7h 09mDelta

Sat 7/266:20 amIAD - FSD

1 stop7h 01mDelta

Deal found 6/9

$279

One-way flights from Sioux Falls to Dulles Intl
Search for one-way flight options from Sioux Falls to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 11, 2025.

Sat 8/166:00 amFSD - IAD

2 stops12h 49mAmerican Airlines

Deal found 6/10

$197

Sun 7/136:38 pmFSD - IAD

2 stops17h 16mMultiple Airlines

Deal found 6/9

$267

Sat 8/165:27 amFSD - IAD

1 stop8h 04mDelta

Deal found 6/10

$268

Sun 7/138:00 amFSD - IAD

1 stop4h 49mUnited Airlines

Deal found 6/9

$308

Mon 6/167:27 pmFSD - IAD

2 stops27h 37mFrontier

Deal found 6/10

$309

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sioux Falls to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Tue 7/22

6:26 pm-12:30 am

1 stop5h 04m

Washington, D.C. Dulles Intl

Sat 7/26

3:39 pm-10:00 pm

1 stop7h 21m

$259

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 8/16

5:00 am-2:31 pm

2 stops8h 31m

Washington, D.C. Dulles Intl

Tue 8/26

6:15 am-10:19 am

1 stop5h 04m

$264

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 9/14

7:00 am-4:50 pm

1 stop8h 50m

Washington, D.C. Dulles Intl

Sat 9/20

11:47 am-5:03 pm

1 stop6h 16m

$319

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 7/4

8:06 pm-8:53 pm

1 stop23h 47m

Washington, D.C. Dulles Intl

Fri 7/11

12:55 pm-3:47 pm

3 stops27h 52m

$367

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 6/25

7:48 pm-3:36 pm

2 stops18h 48m

Washington, D.C. Dulles Intl

Sun 6/29

9:57 pm-6:32 pm

2 stops21h 35m

$527

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 8/16

6:00 am-7:49 pm

2 stops12h 49m

$197

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 7/13

6:38 pm-12:54 pm

2 stops17h 16m

$267

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 8/16

5:27 am-2:31 pm

1 stop8h 04m

$268

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 7/13

8:00 am-1:49 pm

1 stop4h 49m

$308

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Mon 6/16

7:27 pm-12:04 am

2 stops27h 37m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Sioux Falls to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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 Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Sioux Falls to Washington, D.C.. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,945 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,945 reviews

Delta

8.0

Very good

7,945 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,784 reviews

Delta

8.0

Very good

7,945 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,945 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,293 reviews

Delta

8.0

Very good

7,945 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Sioux Falls to Washington, D.C. Dulles Intl?
For a flight from Sioux Falls to Washington, D.C. Dulles Intl, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 2 airlines have flights to Washington, D.C. Dulles Intl from Sioux Falls Joe Foss Field on a regular basis.
What are the cheapest airlines flying from Sioux Falls to Washington, D.C. Dulles Intl Airport round-trip?
United Airlines, at $259, was found to be the cheapest airline from Sioux Falls to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Delta and American Airlines. United Airlines is currently priced 44% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $197. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Sioux Falls to Washington, D.C. Dulles Intl Airport for a low price.
Can I find deals for flights from Sioux Falls to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Sioux Falls to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sioux Falls to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Dulles Intl.
Can I find deals for business class flights from Sioux Falls to Dulles Intl?
Yes. Cheapflights offers flight deals from Sioux Falls to Dulles Intl 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 Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Sioux Falls to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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

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Top 2 airlines flying from Sioux Falls to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$216	Average$358	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$288	Average$498	FlexibilityNo cancel fee	On-time69%

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$197+ Cheap flights from Sioux Falls (FSD) to Dulles Intl (IAD)

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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sioux Falls to Dulles Intl with Cheapflights

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Cheap flight deals from Sioux Falls to Dulles Intl

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Popular in

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Find flight deals from Sioux Falls to Dulles Intl

Cheapest flights from Sioux Falls to Dulles IntlExplore the most affordable flight options available from Sioux Falls to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2025.

Explore the most affordable flight options available from Sioux Falls to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sioux Falls to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Sioux Falls to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Sioux Falls with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Sioux Falls to Washington, D.C.. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly from for flights from Sioux Falls to Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Sioux Falls to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport one-way?

Can I find deals for flights from Sioux Falls to Dulles Intl that include hotel bookings?

How can I find direct flights from Sioux Falls to Dulles Intl?

Can I find deals for business class flights from Sioux Falls to Dulles Intl?

What is the cheapest month to book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Sioux Falls?

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Alternative routes for Sioux Falls to Dulles Intl

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Top 2 airlines flying from Sioux Falls to Dulles Intl

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Cheapest flights from Sioux Falls to Dulles Intl
Explore the most affordable flight options available from Sioux Falls to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2025.