HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
South Bend

$68+ Cheap flights from Dulles Intl (IAD) to South Bend (SBN)

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SBN
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to South Bend with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to South Bend/Michiana are usually found in January or March, booked 7 days in advance, depart on a Monday or Friday and return on a Friday

Cheap flight deals from Dulles Intl to South Bend

Cheapest flights from Dulles Intl to South Bend
Explore the most affordable flight options available from Dulles Intl to South Bend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This Delta deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:29 pmIAD - SBN
1 stop3h 23mDelta
Wed 12/318:20 amSBN - IAD
1 stop3h 32mDelta
Deal found 12/19$308
This Delta deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:29 pmIAD - SBN
1 stop3h 23mDelta
Sun 1/45:54 pmSBN - IAD
1 stop6h 18mDelta
Deal found 12/19$331
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:30 amIAD - SBN
1 stop4h 24mUnited Airlines
Sun 1/410:00 amSBN - IAD
Nonstop1h 47mUnited Airlines
Deal found 12/21$354
This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:17 pmIAD - SBN
1 stop5h 25mDelta
Sat 1/38:20 amSBN - IAD
1 stop3h 32mDelta
Deal found 12/21$371
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:00 pmIAD - SBN
1 stop4h 47mUnited Airlines
Wed 12/3110:00 amSBN - IAD
Nonstop1h 47mUnited Airlines
Deal found 12/21$389
This United Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:40 pmIAD - SBN
Nonstop2h 02mUnited Airlines
Sat 12/2710:00 amSBN - IAD
Nonstop1h 47mUnited Airlines
Deal found 12/19$449
This American Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:35 amIAD - SBN
1 stop4h 51mAmerican Airlines
Tue 12/307:41 pmSBN - IAD
1 stop4h 23mAmerican Airlines
Deal found 12/21$473
This United Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:40 pmIAD - SBN
Nonstop2h 02mUnited Airlines
Sun 12/2810:00 amSBN - IAD
Nonstop1h 47mUnited Airlines
Deal found 12/18$478

Find flight deals from Dulles Intl to South Bend

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to South Bend (SBN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$118
(Kiwi.com)

One-way from

$68
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$239

Good round-trip deal

$237 or less

Good one-way deal

$71 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-South Bend/Michiana flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-South Bend/Michiana flights.
Search Deals
From Washington, D.C. Dulles Intl to South Bend/Michiana
Search Deals
One-way flight from Washington, D.C. Dulles Intl to South Bend/Michiana
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to South Bend/Michiana.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to South Bend/Michiana.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to South Bend that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 21, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to South Bend that are best for you.

Fly from

Dulles Intl

Fly to

South Bend

Route

Depart

Return

Price

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Fri 1/16

1:55 pm-3:54 pm

Nonstop1h 59m

South Bend/Michiana

Mon 1/19

4:39 pm-6:15 pm

Nonstop1h 36m

$118

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Thu 1/22

5:17 pm-11:30 pm

1 stop6h 13m

South Bend/Michiana

Mon 1/26

10:00 am-11:47 am

Nonstop1h 47m

$183

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Thu 1/22

6:00 am-11:04 am

1 stop5h 04m

South Bend/Michiana

Mon 1/26

5:18 pm-12:24 am

1 stop7h 06m

$213

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Wed 1/14

6:20 am-11:04 am

1 stop4h 44m

South Bend/Michiana

Wed 1/21

5:18 pm-12:24 am

1 stop7h 06m

$229

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Wed 1/28

5:17 pm-9:40 pm

1 stop4h 23m

South Bend/Michiana

Sun 2/1

11:47 am-4:00 pm

1 stop4h 13m

$229

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Wed 1/21

2:15 pm-10:35 pm

1 stop8h 20m

South Bend/Michiana

Sat 1/24

6:00 am-11:43 am

1 stop5h 43m

$229

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Fri 2/20

5:45 pm-7:44 pm

Nonstop1h 59m

South Bend/Michiana

Sun 2/22

7:30 am-11:49 am

1 stop4h 19m

$237

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Tue 1/20

5:55 pm-7:56 pm

Nonstop2h 01m

South Bend/Michiana

Mon 1/26

10:00 am-11:47 am

Nonstop1h 47m

$243

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Sat 1/17

5:55 pm-7:56 pm

Nonstop2h 01m

South Bend/Michiana

Mon 1/26

10:00 am-11:47 am

Nonstop1h 47m

$243

Washington, D.C.South Bend

IAD - SBN

IADSBN

Washington, D.C. Dulles Intl

Fri 1/16

7:49 pm-9:45 pm

2 stops25h 56m

South Bend/Michiana

Fri 1/23

11:54 am-6:21 pm

1 stop6h 27m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 19 results
1
2

Compare providers for flights from Dulles Intl to South Bend

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to South Bend in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-South Bend flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-South Bend flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-South Bend flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-South Bend flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-South Bend flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to South Bend

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

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to South Bend?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to South Bend. Price data was last updated on December 19, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to South Bend may vary depending on when you book. For the best chance of a lower fare, look to book 3 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Bend (average of $34). Flying from Washington, D.C. Dulles Intl Airport to South Bend in July is currently the most expensive (average of $119). 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 time of day to fly from IAD to SBN?

Find hourly flight availability from Dulles Intl to South Bend. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

When flying from Washington, D.C. Dulles Intl Airport to South Bend, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 74% versus a flight in the evening.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to South Bend?

Reviews of airlines servicing South Bend

Get insights into the airlines that provide service to South Bend. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Bend. Reviews last updated December 21, 2025.
See what other customers who have flown with Breeze Airways, Delta, and United Airlines from Washington, D.C. Dulles Intl Airport to South Bend have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.2
Very good
249 reviews

Boarding

8.4

Overall

8.2

Comfort

8.2

Entertainment

6.7

Crew

8.8

Food

6.7

Reviews

1 / 16
10.0
Excellent

Anonymous,Dec 2025

RSW - ISP

There was no food offered so I had to just put okay. Other than that all was great.
Breeze Airways
8.2
Very good
249 reviews
Breeze Airways
8.2
Very good
249 reviews

Boarding

8.4

Overall

8.2

Comfort

8.2

Entertainment

6.7

Crew

8.8

Food

6.7

Reviews

1 / 16
10.0
Excellent

Anonymous,Dec 2025

RSW - ISP

There was no food offered so I had to just put okay. Other than that all was great.
Delta
7.9
Good
8,015 reviews
Breeze Airways
8.2
Very good
249 reviews

Boarding

8.4

Overall

8.2

Comfort

8.2

Entertainment

6.7

Crew

8.8

Food

6.7

Reviews

1 / 16
10.0
Excellent

Anonymous,Dec 2025

RSW - ISP

There was no food offered so I had to just put okay. Other than that all was great.
United Airlines
7.4
Good
9,102 reviews
Breeze Airways
8.2
Very good
249 reviews

Boarding

8.4

Overall

8.2

Comfort

8.2

Entertainment

6.7

Crew

8.8

Food

6.7

Reviews

1 / 16
10.0
Excellent

Anonymous,Dec 2025

RSW - ISP

There was no food offered so I had to just put okay. Other than that all was great.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to South Bend. 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 into for flights to South Bend from Washington, D.C. Dulles Intl?

    Most people fly into South Bend/Michiana (SBN) if they book a flight to South Bend from Washington, D.C. Dulles Intl. On average, South Bend/Michiana has 1 inbound flight from Washington, D.C. Dulles Intl per day from 3 airlines. South Bend/Michiana is conveniently located just 3.4 mi from South Bend’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to South Bend?

    Departing from Washington, D.C. Dulles Intl Airport to South Bend will take you 1h 59m. The distance between Washington, D.C. Dulles Intl Airport and South Bend is about 503 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on Breeze Airways is currently your cheapest option to South Bend, with prices starting at $34. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $78 and $216, respectively. Breeze Airways is 84% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to South Bend?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to South Bend on time: Republic Airways (90%), United Airlines (88%), Mesa Airlines (87%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to South Bend?

    While on average a flight from Washington, D.C. Dulles Intl Airport to South Bend is generally $199, our data shows the cheapest flight currently is $66. When looking at the most popular route, (Washington, D.C. Dulles Intl - South Bend/Michiana), you can expect to pay $173 for that flight.

  • Can I find deals for flights from Dulles Intl to South Bend that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to South Bend?

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

  • Can I find deals for business class flights from Dulles Intl to South Bend?

    Yes. Cheapflights offers flight deals from Dulles Intl to South Bend 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 Washington, D.C. Dulles Intl Airport to South Bend?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Bend (average of $34). Flying from Washington, D.C. Dulles Intl Airport to South Bend in July is currently the most expensive (average of $119). 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

Traveling to a place near South Bend?

Book flights to South Bend if you plan to visit one of these locations
Plymouth
Mishawaka
Goshen
Elkhart

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to South Bend

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Dulles Intl to Midway flights
Baltimore to Midway flights
Dulles Intl to Indianapolis flights
Reagan-National to Midway flights
Baltimore to Indianapolis flights
Reagan-National to Cincinnati flights
Dulles Intl to Louisville flights
Reagan-National to Indianapolis flights
Dulles Intl to Cincinnati flights
Baltimore to Louisville flights
Reagan-National to Louisville flights
Baltimore to Cincinnati flights
Reagan-National to Dayton flights
Baltimore to South Bend flights
Reagan-National to South Bend flights
Dulles Intl to Dayton flights
Baltimore to Dayton flights
Baltimore to Fort Wayne flights
Dulles Intl to Kalamazoo flights
Reagan-National to Kalamazoo flights
Dulles Intl to Fort Wayne flights
Reagan-National to Fort Wayne flights
Reagan-National to Evansville flights
Dulles Intl to Evansville flights
Baltimore to Evansville flights
Baltimore to Kalamazoo flights
Baltimore to Owensboro flights
Reagan-National to Owensboro flights

Top 3 airlines flying from Dulles Intl to South Bend

Discover the top 3 airlines that operate flights from Dulles Intl to South Bend. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$34Average$90FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$120Average$278FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$372FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.