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Dulles Intl

$44+ Cheap flights from South Bend (SBN) to Dulles Intl (IAD)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
SBN — IAD
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from South Bend/Michiana to Washington, D.C. Dulles Intl are usually found in January or March, booked 56 days in advance, depart on a Friday or Monday and return on a Monday

Cheap flight deals from South Bend to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from South Bend (SBN) to Dulles Intl (IAD). 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 July 29, 2025.

Round-trip from

$87
(United Airlines)

One-way from

$44
(United Airlines)

Popular in

October

Cheapest in

January

Average price

$279

Good round-trip deal

$137 or less

Good one-way deal

$129 or less
From South Bend/Michiana to Washington, D.C. Dulles Intl
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One-way flight from South Bend/Michiana to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 9% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from South Bend/Michiana to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from South Bend/Michiana to Washington, D.C. Dulles Intl.
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Find flight deals from South Bend to Dulles Intl

Cheapest flights from South Bend to Dulles Intl
Explore the most affordable flight options available from South Bend to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 8/159:55 amSBN - IAD
Nonstop1h 43mUnited Airlines
Mon 8/187:15 pmIAD - SBN
Nonstop1h 51mUnited Airlines
Deal found 7/28$87
This Breeze Airways deal was found by Cheapflights users on 7/29. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/111:07 amSBN - IAD
Nonstop1h 47mBreeze Airways
Mon 8/48:30 amIAD - SBN
Nonstop1h 57mBreeze Airways
Deal found 7/29$98
This Delta deal was found by Cheapflights users on 7/28. 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 8/155:25 pmSBN - IAD
1 stop6h 56mDelta
Mon 8/185:11 pmIAD - SBN
1 stop3h 33mDelta
Deal found 7/28$217
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 8/86:58 pmSBN - IAD
1 stop3h 58mAmerican Airlines
Sun 8/108:19 pmIAD - SBN
1 stop4h 05mAmerican Airlines
Deal found 7/28$257
This Mytrip deal was found by Cheapflights users on 7/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:07 amSBN - IAD
Nonstop1h 47mMultiple Airlines
Fri 9/54:43 pmIAD - SBN
2 stops16h 44mMultiple Airlines
Deal found 7/26$273

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Bend to Dulles Intl 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 July 29, 2025.
Use the filters below to find and compare flights from South Bend to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

South Bend

Fly to

Dulles Intl

Route

Depart

Return

Price

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Fri 8/15

9:55 am-11:38 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 8/18

7:15 pm-9:06 pm

Nonstop1h 51m

$87

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Fri 9/26

4:54 pm-6:31 pm

Nonstop1h 37m

Washington, D.C. Dulles Intl

Mon 9/29

2:10 pm-4:09 pm

Nonstop1h 59m

$98

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Fri 8/15

5:25 pm-12:21 am

1 stop6h 56m

Washington, D.C. Dulles Intl

Mon 8/18

5:11 pm-8:44 pm

1 stop3h 33m

$217

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Fri 8/8

6:58 pm-10:56 pm

1 stop3h 58m

Washington, D.C. Dulles Intl

Sun 8/10

8:19 pm-12:24 am

1 stop4h 05m

$257

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Mon 9/1

11:07 am-12:54 pm

Nonstop1h 47m

Washington, D.C. Dulles Intl

Fri 9/5

4:43 pm-9:27 am

2 stops16h 44m

$273

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Fri 9/19

9:55 am-11:44 am

Nonstop1h 49m

$44

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Fri 11/7

4:54 pm-6:31 pm

Nonstop1h 37m

$49

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Fri 8/15

5:25 pm-12:21 am

1 stop6h 56m

$109

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Tue 8/26

11:45 am-6:52 pm

1 stop7h 07m

$129

South BendWashington, D.C.

SBN - IAD

SBNIAD

South Bend/Michiana

Sun 11/23

7:09 pm-8:20 am

1 stop13h 11m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 11 results
1
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Best time to book a flight from South Bend to Dulles Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from South Bend to Dulles Intl. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from South Bend to Washington, D.C. Dulles Intl Airport, you should look to book at least 10 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from South Bend to Washington, D.C. Dulles Intl Airport (average of $309). Flying from South Bend to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 SBN to IAD?

Find hourly flight availability from South Bend to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

One of the essential ways to save on airfare from South Bend to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 59% on airfare.

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated July 29, 2025.
Read through reviews of airlines operating flights from South Bend to Washington, D.C. Dulles Intl Airport, such as Delta, Breeze Airways, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Breeze Airways
8.0
Very good
190 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
703 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

    If you book a flight to Washington, D.C. Dulles Intl from South Bend, you will be flying from South Bend/Michiana, which is the city’s only airport. South Bend/Michiana (SBN) is located 3.4 mi from the center of South Bend. There are 0 flights from South Bend/Michiana to Washington, D.C. Dulles Intl per day from 3 different airlines.

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

    Currently priced at $87, United Airlines will fly you from South Bend to Washington, D.C. Dulles Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Breeze Airways and Delta - these airlines can fly you to your destination from $98 and $217, respectively. These flights start at 53% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from South Bend to Washington, D.C. Dulles Intl Airport one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $44. Breeze Airways flights start at $49 while deals on Delta start at $109 one-way.

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

    Consider Republic Airways (93%), United Airlines (89%) or Breeze Airways (88%) when booking your flight. These represent the most reliable airlines when flying from South Bend to Washington, D.C. Dulles Intl Airport.

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

    Looking for the cheapest flight from South Bend to Washington, D.C. Dulles Intl Airport? While on average our users pay $249, our data indicates the cheapest price to be $58. The most popular route (South Bend/Michiana - Washington, D.C. Dulles Intl), is priced around $87.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from South Bend to Washington, D.C. Dulles Intl Airport (average of $309). Flying from South Bend to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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Alternative routes for South Bend to Dulles Intl

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

Top 3 airlines flying from South Bend to Dulles Intl

Discover the top 3 airlines that operate flights from South Bend to Dulles Intl. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$51Average$81FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$77Average$271FlexibilityNo cancel feeOn-time69%
DeltaCheapest$198Average$243FlexibilityNo cancel feeOn-timeN/A

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