Skyscanner home

Cheap Flights from Sioux Falls to Washington Dulles

Compare Sioux Falls to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

Book the best Washington Dulles fare with no extra fees

Flight deals from Sioux Falls to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Sioux Falls Airport to Washington Dulles Airport? If you want to travel next month, return fares start from $649. Find the lowest prices on one-way and return tickets right here.
Washington D.C..$566 per passenger.Departing Fri, 7 Aug, returning Fri, 21 Aug.Return flight with United.Outbound indirect flight with United, departs from Sioux Falls on Fri, 7 Aug, arriving in Washington Dulles.Inbound indirect flight with United, departs from Washington Dulles on Fri, 21 Aug, arriving in Sioux Falls.Price includes taxes and charges.From $566, select.
Washington D.C..$566 per passenger.Departing Fri, 16 Oct, returning Sat, 31 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Sioux Falls on Fri, 16 Oct, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 31 Oct, arriving in Sioux Falls.Price includes taxes and charges.From $566, select.
Washington D.C..$566 per passenger.Departing Tue, 15 Sep, returning Tue, 22 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Sioux Falls on Tue, 15 Sep, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Tue, 22 Sep, arriving in Sioux Falls.Price includes taxes and charges.From $566, select.
Washington D.C..$568 per passenger.Departing Wed, 16 Dec, returning Mon, 11 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Sioux Falls on Wed, 16 Dec, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Mon, 11 Jan, arriving in Sioux Falls.Price includes taxes and charges.From $568, select.
Washington D.C..$649 per passenger.Departing Fri, 10 Jul, returning Sat, 18 Jul.Return flight with United.Outbound indirect flight with United, departs from Sioux Falls on Fri, 10 Jul, arriving in Washington Dulles.Inbound indirect flight with United, departs from Washington Dulles on Sat, 18 Jul, arriving in Sioux Falls.Price includes taxes and charges.From $649, select.
Washington D.C..$962 per passenger.Departing Mon, 20 Jul, returning Thu, 13 Aug.Return flight with United.Outbound indirect flight with United, departs from Sioux Falls on Mon, 20 Jul, arriving in Washington Dulles.Inbound indirect flight with United, departs from Washington Dulles on Thu, 13 Aug, arriving in Sioux Falls.Price includes taxes and charges.From $962, select.
Washington D.C..$1,059 per passenger.Departing Mon, 28 Sep, returning Thu, 1 Oct.Return flight with United.Outbound indirect flight with United, departs from Sioux Falls on Mon, 28 Sep, arriving in Washington Dulles.Inbound indirect flight with United, departs from Washington Dulles on Thu, 1 Oct, arriving in Sioux Falls.Price includes taxes and charges.From $1,059, select.

Find the cheapest month to fly from Sioux Falls to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sioux Falls to Washington Dulles flights are currently cheapest in August.
Jun
Find prices
Jul
from $649
Aug
from $566
Sep
from $566
Oct
from $566
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices

Sioux Falls to Washington Dulles: Alternative routes

Compare routes from Sioux Falls to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from $399
Search flights

Washington Dulles

37km from central Washington D.C.
from $566
Search flights

Baltimore Washington International

44km from central Washington D.C.
from $562
Search flights

Sioux Falls to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$566
Cheapest month to flyAugust

Finding cheap flights from Sioux Falls to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Sioux Falls to Washington Dulles is $566. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sioux Falls to Washington Dulles. But we found flights with one or more stops from $566.
As of June 2026, there are no flights flying from Sioux Falls to Washington Dulles.
The cheapest month to fly from Sioux Falls to Washington Dulles is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sioux Falls Airport to Washington Dulles Airport on Friday, 7 August 2026.
No airlines currently offer direct flights between Sioux Falls Airport and Washington Dulles Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, United offers the cheapest flight tickets to Washington Dulles.

Travelling from Sioux Falls Airport (FSD) to Washington Dulles Airport (IAD): what you need to know

  • Washington DC is one hour ahead of Sioux Falls and is in the UTC-5 timezone.

  • Get to the airport on time so you don't miss your FSD to IAD flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • Travelling during a peak time like May? Public holidays and other popular seasons can result in longer queues at security. Be extra cautious and get there up to four hours before international flights and two hours before domestic departures.

  • Consider adding a stopover when booking your ticket from Sioux Falls Airport to Washington Dulles Airport. Simply uncheck 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Here's where you can stop between FSD and IAD:

    • Chicago O'Hare International Airport

    • Denver International Airport

    • Minneapolis St Paul Airport

How to find the cheapest flights from Sioux Falls Airport (FSD) to Washington Dulles Airport (IAD)

  • At the moment, $494 is the cheapest price we've seen for a one-way Sioux Falls Airport to Washington Dulles Airport flight. The best price for a return ticket is $566. Keep in mind that fares may change due to availability when booking.

  • To find cheap tickets from FSD to IAD, book ahead. Airlines typically offer their most competitively priced fares when flights are first released.

  • The 'Whole month' tool shows you the cheapest flights from Sioux Falls Airport to Washington Dulles Airport throughout the entire month. It's an easy way to snap up a bargain if your dates are flexible.

  • You won't have to check back in every day to see if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a change in price on cheap flights from FSD to IAD.

  • Discover the perfect flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Sioux Falls Airport to Washington Dulles Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Sioux Falls Airport (FSD)

  • You'll find FSD at 2801 Jaycee Lane.

  • 70% of flights that leave from Sioux Falls Airport touch down at their destination on time.

  • To get to Sioux Falls Airport from central Sioux Falls, it'll take about 15 minutes by car. This depends on traffic though. It's approximately 10 kilometres from the airport to the city centre.

  • You can expect a trip time of roughly 35 minutes when using public transport.

  • Looking for a handy hotel near FSD? If you're catching an early flight from Sioux Falls Airport to Washington Dulles Airport, these accommodation options will have you sleeping moments from your departure gate:

Arriving at Washington Dulles Airport (IAD)

Getting from Washington Dulles Airport (IAD) to central Washington DC

  • IAD is located at 1 Saarinen Circle.

  • Washington Dulles Airport is approximately 40 kilometres from central Washington DC. The drive time takes around 45 minutes.

  • It'll take around 1 hour 10 minutes if you're travelling by public transport.

When to fly to Washington Dulles Airport (IAD)

  • The quietest month for a flight from Sioux Falls Airport to Washington Dulles Airport is February, while July is the busiest. Pick the ideal time to visit Washington DC based on whether you prefer a more relaxed vibe or a faster pace.

  • Book your flight from Sioux Falls Airport to Washington Dulles Airport for July if you want to explore Washington DC during its warmest month. Expect temperatures of between 19ºC and 33ºC.

  • For cooler conditions, look for a cheap ticket from FSD to IAD in January. Average temperatures are between -6ºC and 10ºC then.

Explore more of the United States

  • You've seen Washington DC, now it's time to discover more of the United States. Travel around 322 kilometres north-east to New York to tick off its must-visit sights. From Central Park to Statue of Liberty and Metropolitan Museum of Art, you'll have a full itinerary ahead.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another favourite stop in the United States. Get a taste of what this destination has to offer at Independence Hall, Liberty Bell and Philadelphia Museum of Art.

Plan the rest of your trip from Sioux Falls to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.