United Flight UA3503 Deals & Information (2025/2026)

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United Flight 3503 Route Deals From $70

The cheapest prices found with in the last 7 days for return flights were $166 and $70 for one-way flights to Louisville Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 6 - Sun, Aug 10
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$166 Roundtrip, found 5 days ago
$166
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug 6 from Washington Dulles Intl. to Louisville Intl., returning Sun, Aug 10, priced at $166 found 5 days ago
Thu, Dec 11 - Sun, Dec 14
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$183 Roundtrip, found 2 hours ago
$183
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Dec 11 from Washington Dulles Intl. to Louisville Intl., returning Sun, Dec 14, priced at $183 found 2 hours ago
Thu, Aug 28 - Sun, Aug 31
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$184 Roundtrip, found 3 days ago
$184
Roundtrip
found 3 days ago
Select United flight, departing Thu, Aug 28 from Washington Dulles Intl. to Louisville Intl., returning Sun, Aug 31, priced at $184 found 3 days ago
Fri, Aug 29 - Sun, Aug 31
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$187 Roundtrip, found 9 hours ago
$187
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Aug 29 from Washington Dulles Intl. to Louisville Intl., returning Sun, Aug 31, priced at $187 found 9 hours ago
Fri, Nov 14 - Mon, Nov 17
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$188 Roundtrip, found 1 day ago
$188
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 14 from Washington Dulles Intl. to Louisville Intl., returning Mon, Nov 17, priced at $188 found 1 day ago
Thu, Jan 15 - Mon, Jan 19
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$189 Roundtrip, found 6 days ago
$189
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jan 15 from Washington Dulles Intl. to Louisville Intl., returning Mon, Jan 19, priced at $189 found 6 days ago
Fri, Aug 29 - Mon, Sep 1
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 29 from Washington Dulles Intl. to Louisville Intl., returning Mon, Sep 1, priced at $192 found 1 day ago
Fri, Nov 14 - Mon, Nov 17
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$193 Roundtrip, found 1 day ago
$193
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 14 from Washington Dulles Intl. to Louisville Intl., returning Mon, Nov 17, priced at $193 found 1 day ago
Wed, Aug 6 - Sun, Aug 10
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$197 Roundtrip, found 5 days ago
$197
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug 6 from Washington Dulles Intl. to Louisville Intl., returning Sun, Aug 10, priced at $197 found 5 days ago
Sat, Jul 26 - Sun, Aug 3
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$198 Roundtrip, found 4 days ago
$198
Roundtrip
found 4 days ago
Select United flight, departing Sat, Jul 26 from Washington Dulles Intl. to Louisville Intl., returning Sun, Aug 3, priced at $198 found 4 days 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.