How do I get Price Alerts for flights from Sioux City to Washington, D.C. Dulles Intl Airport?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Sioux City from Washington, D.C. Dulles Intl Airport . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport?

Prices for flights from Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport were last updated today.

How old do you have to be to fly from Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport?

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 Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$587 Cheap Flights from Sioux City to Washington, D.C. Dulles Intl Airport in 2026/27

Find the cheapest flights from Sioux City to Washington, D.C.

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:04 am - 8:33 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

14h 29m2 stops Chicago O'Hare Intl Dallas/Fort Worth

10:28 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

20h 43m1 stop Chicago O'Hare Intl

$587United Airlines

Sat, Jan 30 - Wed, Feb 3

5:04 am - 4:00 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

9h 56m1 stop Chicago O'Hare Intl

10:05 am - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

9h 06m1 stop Chicago O'Hare Intl

$589United Airlines

Sat, Jan 30 - Wed, Feb 3

5:04 am - 8:33 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

14h 29m2 stops Chicago O'Hare Intl Dallas/Fort Worth

1:00 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

6h 11m1 stop Chicago O'Hare Intl

$626United Airlines

Sat, Jan 30 - Wed, Feb 3

5:04 am - 9:22 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

15h 18m2 stops Chicago O'Hare Intl Detroit Metropolitan Wayne County

10:28 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

20h 43m1 stop Chicago O'Hare Intl

$633United Airlines

Sat, Jan 30 - Wed, Feb 3

6:00 am - 1:35 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

6h 35m1 stop Chicago O'Hare Intl

1:17 pm - 6:10 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

5h 53m1 stop Chicago O'Hare Intl

$639United Airlines

Tue, Nov 3 - Sat, Nov 7

5:04 am - 8:33 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

14h 29m2 stops Chicago O'Hare Intl Dallas/Fort Worth

5:28 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

25h 43m2 stops Boston Logan Intl Chicago O'Hare Intl

$651United Airlines

Sat, Jan 30 - Wed, Feb 3

5:04 am - 11:55 amSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

29h 51m2 stops Chicago O'Hare Intl Clarksburg Benedum

1:00 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

6h 11m1 stop Chicago O'Hare Intl

$681United Airlines

Sat, Jan 30 - Wed, Feb 3

5:04 am - 8:33 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

14h 29m2 stops Chicago O'Hare Intl Dallas/Fort Worth

1:00 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

6h 11m1 stop Chicago O'Hare Intl

$687United Airlines

Sat, Jan 30 - Wed, Feb 3

5:04 am - 1:34 pmSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

7h 30m1 stop Chicago O'Hare Intl

1:00 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

6h 11m1 stop Chicago O'Hare Intl

$692United Airlines

Sat, Jan 30 - Wed, Feb 3

5:04 am - 11:55 amSUX Sioux City Sioux Gateway-IAD Washington, D.C. Dulles Intl

29h 51m2 stops Chicago O'Hare Intl Clarksburg Benedum

1:10 pm - 6:11 pmIAD Washington, D.C. Dulles Intl-SUX Sioux City Sioux Gateway

30h 01m2 stops Clarksburg Benedum Chicago O'Hare Intl

$696United Airlines

Sat, Jan 30 - Wed, Feb 3

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United Airlines flights from Sioux City to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Sioux City to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines

Jan 30

SUX5:04 amSioux City Sioux Gateway

14h 29m

2 stops

IAD8:33 pmWashington, D.C. Dulles Intl

Feb 3

IAD10:28 pmWashington, D.C. Dulles Intl

20h 43m

1 stop

SUX6:11 pmSioux City Sioux Gateway

$587

United Airlines

Jan 30

SUX5:04 amSioux City Sioux Gateway

9h 56m

1 stop

IAD4:00 pmWashington, D.C. Dulles Intl

Feb 3

IAD10:05 amWashington, D.C. Dulles Intl

9h 06m

1 stop

SUX6:11 pmSioux City Sioux Gateway

$589

United Airlines

Jan 30

SUX5:04 amSioux City Sioux Gateway

14h 29m

2 stops

IAD8:33 pmWashington, D.C. Dulles Intl

Feb 3

IAD1:00 pmWashington, D.C. Dulles Intl

6h 11m

1 stop

SUX6:11 pmSioux City Sioux Gateway

$626

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-8:33 pm

2 stops14h 29m

Washington, D.C. Dulles Intl

Wed 2/3

10:28 pm-6:11 pm

1 stop20h 43m

$587

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-4:00 pm

1 stop9h 56m

Washington, D.C. Dulles Intl

Wed 2/3

10:05 am-6:11 pm

1 stop9h 06m

$589

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-8:33 pm

2 stops14h 29m

Washington, D.C. Dulles Intl

Wed 2/3

1:00 pm-6:11 pm

1 stop6h 11m

$626

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-9:22 pm

2 stops15h 18m

Washington, D.C. Dulles Intl

Wed 2/3

10:28 pm-6:11 pm

1 stop20h 43m

$633

Quickest round-trip

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Tue 11/3

6:00 am-1:35 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Sat 11/7

1:17 pm-6:10 pm

1 stop5h 53m

$639

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-8:33 pm

2 stops14h 29m

Washington, D.C. Dulles Intl

Wed 2/3

5:28 pm-6:11 pm

2 stops25h 43m

$651

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-11:55 am

2 stops29h 51m

Washington, D.C. Dulles Intl

Wed 2/3

1:00 pm-6:11 pm

1 stop6h 11m

$681

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-8:33 pm

2 stops14h 29m

Washington, D.C. Dulles Intl

Wed 2/3

1:00 pm-6:11 pm

1 stop6h 11m

$687

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-1:34 pm

1 stop7h 30m

Washington, D.C. Dulles Intl

Wed 2/3

1:00 pm-6:11 pm

1 stop6h 11m

$692

Sioux CityWashington, D.C.

SUX Sioux City Sioux Gateway - IAD Washington, D.C. Dulles Intl

SUXIAD

Sioux City Sioux Gateway

Sat 1/30

5:04 am-11:55 am

2 stops29h 51m

Washington, D.C. Dulles Intl

Wed 2/3

1:10 pm-6:11 pm

2 stops30h 01m

$696

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Sioux City to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux City to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sioux City to Washington, D.C. Dulles Intl Airport (SUX to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux City to Washington, D.C. Dulles Intl Airport

Best Price Found	$587
Fastest flight time	6h 35m
Direct flights	None

The best flight deal from Sioux City to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $587

The fastest flight from Sioux City to Washington, D.C. Dulles Intl Airport takes 6h 35m

There are no direct flights from Sioux City to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Sioux City to Washington, D.C. Dulles Intl Airport.

Search flight deals

Frequently asked questions about flying from Sioux City to Washington, D.C. Dulles Intl Airport

How far is Sioux City Sioux Gateway to Washington, D.C. Dulles Intl by plane?
Sioux City Sioux Gateway and Washington, D.C. Dulles Intl are 1019.1 mi apart from one another. Typically, this will take 6h 35m by plane in normal conditions.
When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport were last updated today.
How old do you have to be to fly from Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport?
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 Sioux City Sioux Gateway Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Sioux City to Washington, D.C. Dulles Intl Airport

How do I get Price Alerts for flights from Sioux City to Washington, D.C. Dulles Intl Airport?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Sioux City from Washington, D.C. Dulles Intl Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Sioux City to Washington, D.C. Dulles Intl Airport with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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Why use momondo?

Why should I use momondo to find a flight deal from Sioux City to Washington, D.C.?

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

Can I find flights from Sioux City to Washington, D.C. with flexible booking policies on momondo?

All flight searches from Sioux City to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Sioux City to Washington, D.C.?

Once you have performed a search for Sioux City to Washington, D.C. 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 City to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Sioux City and alert you when they change.