$298 Cheap Flights from Sioux Falls (FSD) to Washington (IAD)
Popular airlines from Sioux Falls Regional Airport (FSD) to Washington Dulles Intl. Airport (IAD)
UnitedUnited
DeltaDelta
American AirlinesAmerican Airlines
Cheap Flights from Sioux Falls to Washington (FSD-IAD)
Alternative airports near Washington
Prices were available within the past 7 days. Prices and availability are subject to change.
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Sioux Falls (FSD) to Washington (IAD) at a glance
Travel from Sioux Falls (FSD) to Washington (IAD) with a range of airlines on this domestic short-haul route. Discover options for cheap flights from Sioux Falls as you compare itineraries from full-service carriers, ensuring you find the best fit for your budget and travel schedule. As you prepare to explore Washington's iconic attractions and vibrant neighborhoods, gather essential details about direct flights from Sioux Falls Regional Airport to Washington Dulles International Airport.
- Fastest flight duration: around 3h 45m in-flight, plus roughly 1h 15m layover with one stop
- Route distance: roughly 1,100 miles (1,770 km)
- Flights per week: around 8 departures on average
- Typical fares (one-way): economy tickets often range from $130–$445, depending on seasonality and how far ahead you book
Flights from Sioux Falls Regional Airport (FSD) to Washington Dulles International Airport (IAD)
Based on recent traveler bookings, here are the most popular airlines flying from Sioux Falls to Washington, often favored for their one-stop service. Common layover points include O'Hare International Airport (ORD) with an approximate 1 hour and 15-minute layover, Minneapolis-St. Paul International Airport (MSP) at around 1 hour and 30 minutes, and Hartsfield-Jackson Atlanta International Airport (ATL) with about a 1-hour layover. These options allow you to balance price, total travel time, and cabin class to create the ideal itinerary for your trip.
- United: This full-service airline provides one-stop connections, with one-way ticket prices generally between $135 and $455. It operates around 57% of the departures on this route, featuring an in-flight duration of 3 hours and 45 minutes, and a total travel time of approximately 5 hours and 15 minutes, including layover time.
- Delta: Offering one-stop service as a full-service carrier, Delta's one-way fares usually range from $130 to $660. It accounts for about 39% of departures along this route, with a flying time of 3 hours and 45 minutes, and a complete journey time of roughly 5 hours and 15 minutes, factoring in the layover.
- American Airlines: As a full-service airline providing one-stop flights, American Airlines typically has one-way fares from $130 to $330. This carrier represents around 4% of departures on this route, with an in-flight duration of 3 hours and 45 minutes, and a total travel time of about 5 hours and 15 minutes, including the layover.
Best time to fly from Sioux Falls (FSD) to Washington (IAD)
The most popular months for travelers flying from Sioux Falls to Washington are March, April, and May, when peak temperatures in Washington reach up to 64.6°F in May. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 76.3°F. For better deals, May usually offers the lowest average one-way fare around $214. Flight availability peaks in October, with approximately 11 flights per week, making it easier to find convenient departure times.
- Cheapest time to fly: May usually offers good deals with average one-way fare around $214, roughly 18% cheaper than the yearly average.
- More budget-friendly months to fly: August, November, and March typically offer average one-way fares roughly ranging from $222 to $235.
- Most flight options: October has the highest number of flights from Sioux Falls to Washington, with approximately 11 flights per week, giving you more flexibility in scheduling your trip.
| Month | Temperature | Demand | Weekly Flights | Average one-way Fare |
| January | 33.6°F (0.9°C) | Low | 7 | $242 |
| February | 36.9°F (2.7°C) | Average | 7 | $318 |
| March | 44.4°F (6.9°C) | High | 8 | $235 |
| April | 55.0°F (12.8°C) | High | 10 | $259 |
| May | 64.6°F (18.1°C) | High | 8 | $214 |
| June | 73.2°F (22.9°C) | Average | 7 | $292 |
| July | 78.4°F (25.8°C) | Average | 8 | $287 |
| August | 76.3°F (24.6°C) | Low | 7 | $222 |
| September | 69.6°F (20.9°C) | Average | 9 | $259 |
| October | 58.5°F (14.7°C) | Average | 11 | $346 |
| November | 46.2°F (7.9°C) | Average | 7 | $234 |
| December | 39.2°F (4.0°C) | Low | 7 | $241 |
*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.
Alternative route from Sioux Falls (FSD) to Washington (IAD)
- Sioux Falls to Washington (FSD-DCA): Ronald Reagan Washington National Airport (DCA) is located approximately 23 miles from Washington Dulles International Airport (IAD). One-way economy ticket prices for this journey generally fall between $125 and $440, influenced by the season and time of booking. Typically, this route features one-stop flights, with common layover points being O'Hare International Airport (ORD) and Minneapolis - St. Paul International Airport (MSP). Major airlines operating on this route include United and Delta. Additionally, first-class service is available for travelers seeking enhanced comfort.
How to find the best prices for flights from Sioux Falls (FSD) to Washington (IAD)
Getting some of the best deals on flights from Sioux Falls to Washington is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are typically found when booking at least two months in advance, although most travelers book their flights 2 to 8 weeks ahead. Morning departures, between 5 a.m. and 12 p.m., tend to offer lower prices and are also the most popular times to fly. Additionally, traveling on Tuesday usually provides cheaper fares, while Saturday remains the most popular travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Washington Dulles International Airport from Sioux Falls Regional Airport
Washington welcomes travelers from Sioux Falls with a range of transport options based on price, convenience, and proximity. Washington city center is approximately a 40-minute drive (covering about 29 miles) from Washington Dulles International Airport, depending on traffic. Here's how to reach Washington efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Washington, with private rides that can be arranged in advance.
- Car rental: Renting a car from Washington Dulles International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Washington Dulles International Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Washington Dulles International Airport, the Washington Dulles International Airport Metrorail Station, a metro station, is conveniently located just 0.2 miles away on foot, providing easy access for travelers.
Sioux Falls to Washington Flights
The cheapest times to fly from Sioux Falls to Washington
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sioux Falls to Washington are during the month of December. You can find some of the cheapest flights from Sioux Falls to Washington with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Sioux Falls to Washington
Sunday is one of the best days to book for cheap flights from Sioux Falls to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Sioux Falls to Washington
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sioux Falls to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $298 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sioux Falls to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Sioux Falls to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently Asked Questions
How much does a flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $298 and cheap return flights $359 Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights typically cost between $272 and $909, and return flights often range between $437 and $1351. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
September is the cheapest month to fly from Sioux Falls, SD (FSD) to Washington, DC (IAD), with average round-trip fares around $301. This fare is about 43% lower than the average price throughout the year, likely due to lower demand as summer travel winds down. Other affordable months to consider are March and May.
*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter FSD to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
The ideal times to fly from Sioux Falls to Washington, DC are August and September. August offers average return flight prices around $368, while September is also a cost-effective choice. These months provide a good combination of reasonable fares and favorable travel conditions, based on booking data from the past year.
*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Sioux Falls Regional (FSD) to Washington Dulles Intl. (IAD) usually departs at around 5:00 AM, operated by Delta. This service is seasonal and runs in January, April, May, and June, making it ideal for early travelers. Catching this flight allows you to make the most of your day in Washington, D.C. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
For flights from Sioux Falls Regional (FSD) to Washington Dulles Intl. (IAD), the most popular departure times are in the early morning, from 6am to 9am. About 33% of passengers prefer this time window. Many major carriers, including United Airlines and Delta, offer flights during this window. This timing is favored because it allows you to reach your destination early in the day.
How long does it take to fly from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
A flight from FSD to IAD with a layover takes around 6 hours 30 minutes, with the route covering approximately 1,048 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
First class seats are offered on the FSD to IAD route. First class cabins are available on:
- United Airlines
- American Airlines
- Delta Air Lines
How do I earn miles on a Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Sioux Falls Regional (FSD)?
From Sioux Falls Regional (FSD), you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD) in Washington. Some flights may connect through major hubs like O'Hare Intl. (ORD), Dallas-Fort Worth Intl. (DFW), Denver Intl. (DEN) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Sioux Falls, SD (FSD-Sioux Falls Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport | Sioux Falls Regional Airport |
|---|---|
Destination airport | Washington Dulles Intl. Airport |
Distance | 1,048 miles away |
Airlines serving | United, Delta, American Airlines |
Popular airline | United |
Roundtrip price | $359 |