United Flight 3503 Deals & Information (2025/2026)

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United Flight 3503 Route Deals From $214

The cheapest prices found with in the last 7 days for return flights were $189 and $214 for one-way flights to Des Moines Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 10 - Fri, Feb 20
ORD
O'Hare Intl.
DSM
Des Moines Intl.
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 10 from O'Hare Intl. to Des Moines Intl., returning Fri, Feb 20, priced at $189 found 1 day ago
Thu, Nov 27 - Sat, Nov 29
ORD
O'Hare Intl.
DSM
Des Moines Intl.
$208 Roundtrip, found 6 days ago
$208
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 27 from O'Hare Intl. to Des Moines Intl., returning Sat, Nov 29, priced at $208 found 6 days ago
Wed, Nov 26 - Sun, Nov 30
ORD
O'Hare Intl.
DSM
Des Moines Intl.
$235 Roundtrip, found 1 day ago
$235
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 26 from O'Hare Intl. to Des Moines Intl., returning Sun, Nov 30, priced at $235 found 1 day ago
Thu, Nov 27 - Sat, Nov 29
ORD
O'Hare Intl.
DSM
Des Moines Intl.
$239 Roundtrip, found 6 days ago
$239
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 27 from O'Hare Intl. to Des Moines Intl., returning Sat, Nov 29, priced at $239 found 6 days ago
Tue, Feb 10 - Fri, Feb 20
ORD
O'Hare Intl.
DSM
Des Moines Intl.
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 10 from O'Hare Intl. to Des Moines Intl., returning Fri, Feb 20, priced at $249 found 1 day ago

Frequently asked questions

What route does flight number UA3503 take?
UA3503 is used on multiple routes, but the most common is between Dulles Intl. Airport and Hancock Intl. Airport (SYR). If on a non-stop flight, you'll touch down in around 1 hour and 13 minutes. Multi-stop flights can also use the same number, as can flights on other routes.
What kind of plane is on flight number UA3503?
UA3503 is a flight number that serves multiple routes. If you're traveling on the most popular one, Washington Dulles Intl. Airport (IAD) to Syracuse, NY Airport (SYR-Hancock Intl.), there's a strong chance you'll be cruising aboard the Embraer 175.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA3503 flight with Travelocity, please visit our Customer Service Portal.