$44 Cheap Flights from Washington (IAD) to South Bend (SBN)

View $44 flight on Fri, Aug 15, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)

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Cheap Flights from Washington to South Bend (IAD-SBN)

Prices were available within the past 7 days and start at $44 for one-way flights and $87 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Aug 11 - Fri, Aug 15
IAD
Washington
SBN
South Bend
$87 Roundtrip, found 6 days ago
$87
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 11 from Washington to South Bend, returning Fri, Aug 15, priced at $87 found 6 days ago
United
Fri, Aug 15 - Mon, Aug 18
IAD
Washington
SBN
South Bend
$95 Roundtrip, found 3 hours ago
$95
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Aug 15 from Washington to South Bend, returning Mon, Aug 18, priced at $95 found 3 hours ago
Breeze Airways
Mon, Aug 11 - Fri, Aug 15
IAD
Washington
SBN
South Bend
$100 Roundtrip, found 6 days ago
$100
Roundtrip
found 6 days ago
Select Breeze Airways flight, departing Mon, Aug 11 from Washington to South Bend, returning Fri, Aug 15, priced at $100 found 6 days ago
Breeze Airways
Fri, Aug 15 - Mon, Aug 18
IAD
Washington
SBN
South Bend
$102 Roundtrip, just found
$102
Roundtrip
just found
Select Breeze Airways flight, departing Fri, Aug 15 from Washington to South Bend, returning Mon, Aug 18, priced at $102 just found
Breeze Airways
Mon, Aug 11 - Mon, Aug 18
IAD
Washington
SBN
South Bend
$105 Roundtrip, found 18 hours ago
$105
Roundtrip
found 18 hours ago
Select Breeze Airways flight, departing Mon, Aug 11 from Washington to South Bend, returning Mon, Aug 18, priced at $105 found 18 hours ago
Breeze Airways
Fri, Aug 22 - Mon, Aug 25
IAD
Washington
SBN
South Bend
$107 Roundtrip, just found
$107
Roundtrip
just found
Select Breeze Airways flight, departing Fri, Aug 22 from Washington to South Bend, returning Mon, Aug 25, priced at $107 just found
Breeze Airways
Mon, Aug 11 - Fri, Aug 15
IAD
Washington
SBN
South Bend
$110 Roundtrip, found 2 days ago
$110
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Mon, Aug 11 from Washington to South Bend, returning Fri, Aug 15, priced at $110 found 2 days ago
Breeze Airways
Mon, Aug 4 - Fri, Aug 8
IAD
Washington
SBN
South Bend
$113 Roundtrip, found 12 hours ago
$113
Roundtrip
found 12 hours ago
Select Breeze Airways flight, departing Mon, Aug 4 from Washington to South Bend, returning Fri, Aug 8, priced at $113 found 12 hours ago
American Airlines
Thu, Aug 7 - Fri, Aug 15
IAD
Washington
SBN
South Bend
$175 Roundtrip, found 1 day ago
$175
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 7 from Washington to South Bend, returning Fri, Aug 15, priced at $175 found 1 day ago
Delta
Mon, Sep 29 - Fri, Oct 3
IAD
Washington
SBN
South Bend
$217 Roundtrip, found 3 hours ago
$217
Roundtrip
found 3 hours ago
Select Delta flight, departing Mon, Sep 29 from Washington to South Bend, returning Fri, Oct 3, priced at $217 found 3 hours ago

Find the cheapest month to fly from Washington (IAD) to South Bend (SBN)

February is typically the cheapest month to fly

From $61 - $231 per traveler.

Graph displaying average flight prices per month

Alternative airports near South Bend

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to South Bend Intl. SBN. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $219
SBN
South Bend Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $219
Flights from Washington (IAD) to South Bend (SBN)
Origin airport
Washington Dulles Intl.
Destination airport
South Bend Intl.
Airlines serving
American Airlines, Breeze Airways, Delta, United
Roundtrip price
$87
Distance
503 mi
Average flight time
1 hour 53 mins

Washington to South Bend Flights

The cheapest times to fly from Washington to South Bend

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 Washington to South Bend are during the month of August. You can find some of the cheapest flights from Washington to South Bend with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to South Bend

Sunday is one of the best days to book for cheap flights from Washington to South Bend: 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 Washington to South Bend

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 Washington to South Bend in 2025. You can also book with separate airlines for your outbound and return journeys, from $44 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 Washington to South Bend 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 Washington to South Bend 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 Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN) cost?
Cheap round-trip fares from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN) start from $63. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Breeze flight leaving IAD on August 11 2025 and touching down at SBN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from IAD to SBN?
The cheapest flights from IAD to SBN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)?
Jump on a nonstop flight with United Airlines and travel straight from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN).
What is the cheapest airline that flies from IAD to SBN?
Take off from IAD to SBN with Breeze. This airline currently offers the cheapest one-way fare for this route, starting at $32. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAD on September 22 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)?
On average, there's only 1 nonstop flight taking off from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN) each day. If this isn't convenient for you, check out flights with layovers. Just filter your search on Expedia to include one stop or more to find a better alternative.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)?
The 5 PM departures from IAD to SBN are typically the busiest. Prices can be higher for these popular slots. If you want to save money, pick a less crowded time to fly.
What day of the week has the most flights from IAD to SBN?
If you fly on a Friday, you'll get the biggest range of choices for flights from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN).
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)?
The first flight of the day leaving from Washington Dulles Intl. Airport (IAD) is at around 8:30AM UTC-5. Catch this flight and you'll reach South Bend Intl. Airport (SBN) at approximately 10:25AM UTC-5. The overall travel time is 1h 55m.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)?
Flights from IAD to SBN have an average travel time of 1 hour and 59 minutes. The distance between these two airports is 500 mi.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)?
To avoid potential delays on the Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN) route, travel before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for South Bend from Washington Dulles Intl. Airport (IAD)?
Explore your flight options from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN). This is the only South Bend airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN) last-minute?
Booking your flight from IAD to SBN shortly before your trip is typically more expensive. But if you're flexible with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an IAD to SBN flight and hotel package?
You'll typically save money by booking an IAD to SBN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your preferred accommodations and flights, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to South Bend Intl. Airport (SBN)?
If you booked your IAD to SBN flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.