$125 Cheap United flights Seattle (SEA) to South Bend (SBN)

View $125 flight on Wed, Nov 19, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$125 Cheap United flights Seattle (SEA) to South Bend (SBN)

Prices were available within the past 7 days and start at $125 for one-way flights and $221 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Aug 26 - Wed, Sep 3
SEA
Seattle
SBN
South Bend
$221 Roundtrip, found 2 days ago
$221
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 26 from Seattle to South Bend, returning Wed, Sep 3, priced at $221 found 2 days ago
United
Wed, Oct 15 - Tue, Oct 21
SEA
Seattle
SBN
South Bend
$249 Roundtrip, found 5 days ago
$249
Roundtrip
found 5 days ago
Select United flight, departing Wed, Oct 15 from Seattle to South Bend, returning Tue, Oct 21, priced at $249 found 5 days ago
United
Wed, Aug 13 - Tue, Aug 19
SEA
Seattle
SBN
South Bend
$251 Roundtrip, found 17 hours ago
$251
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Aug 13 from Seattle to South Bend, returning Tue, Aug 19, priced at $251 found 17 hours ago
United
Tue, Aug 26 - Wed, Sep 3
SEA
Seattle
SBN
South Bend
$253 Roundtrip, found 2 days ago
$253
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 26 from Seattle to South Bend, returning Wed, Sep 3, priced at $253 found 2 days ago
United
Tue, Aug 26 - Wed, Sep 3
SEA
Seattle
SBN
South Bend
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 26 from Seattle to South Bend, returning Wed, Sep 3, priced at $262 found 2 days ago
United
Mon, Aug 25 - Wed, Sep 3
SEA
Seattle
SBN
South Bend
$272 Roundtrip, found 2 days ago
$272
Roundtrip
found 2 days ago
Select United flight, departing Mon, Aug 25 from Seattle to South Bend, returning Wed, Sep 3, priced at $272 found 2 days ago
Flights from Seattle (SEA) to South Bend (SBN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
South Bend Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
Delta
Distance
1798 mi

Frequently asked questions

How much is a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to South Bend Intl. Airport (SBN)?
You can find affordable round-trip United Airlines flights from $221 from SEA to SBN by filtering your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $125 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to SBN with United Airlines?
United Airlines flights to South Bend are generally more affordable in the low-season months of January and December. Whether you're searching for a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to South Bend Intl. Airport (SBN) with United Airlines?
Search for affordable United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to South Bend Intl. Airport (SBN) one to three months ahead of your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to South Bend Intl. Airport (SBN)?
Click on the "Nonstop" filter when browsing for direct United Airlines flights from SEA to SBN. You'll also be able to compare other carriers servicing the same direct trip.
What is the earliest United Airlines flight from SEA to SBN?
To find the earliest departures from SEA to SBN with United Airlines, filter your results by "Morning" and "Early Morning." Choosing an early flight usually means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in South Bend?
Take a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to South Bend, and you'll likely arrive at South Bend Intl. Airport (SBN). This is the airline's main hub in this city.
Why fly with United Airlines from SEA to SBN?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to depart from SEA to SBN with United Airlines. Plus, by joining Expedia's free One Key™ program, you can earn OneKeyCash™* alongside any airline loyalty program earnings. It's yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to South Bend Intl. Airport (SBN)?
Depending on your ticket type, a fee generally applies if you cancel or reschedule your booking more than 24 hours after it's confirmed. To secure flexible fares, select our "No cancel fee" or "Changes included" filter when you look for flights. To learn more about changing or canceling your reservation, go to "Trips," select your flight and click on "Manage Booking."

Explore a world of travel with Expedia

*Available to One Key members.