United Flight 3503 Deals & Information (2026/2027)

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United Flight 3503 Route Deals From $269

The cheapest prices found with in the last 7 days for return flights were $299 and $269 for one-way flights to Burlington Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jan 18 - Sat, Jan 23
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jan 18 from Washington Dulles Intl. to Burlington Intl., returning Sat, Jan 23, priced at $299 found 2 days ago
Fri, Oct 30 - Mon, Nov 2
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$303 Roundtrip, found 3 days ago
$303
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 30 from Washington Dulles Intl. to Burlington Intl., returning Mon, Nov 2, priced at $303 found 3 days ago
Mon, Jan 18 - Sat, Jan 23
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jan 18 from Washington Dulles Intl. to Burlington Intl., returning Sat, Jan 23, priced at $309 found 2 days ago
Fri, Oct 30 - Mon, Nov 2
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$313 Roundtrip, found 3 days ago
$313
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 30 from Washington Dulles Intl. to Burlington Intl., returning Mon, Nov 2, priced at $313 found 3 days ago
Mon, Aug 2 - Tue, Aug 10
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$314 Roundtrip, found 4 days ago
$314
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 2 from Washington Dulles Intl. to Burlington Intl., returning Tue, Aug 10, priced at $314 found 4 days ago
Mon, Aug 2 - Tue, Aug 10
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$324 Roundtrip, found 4 days ago
$324
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 2 from Washington Dulles Intl. to Burlington Intl., returning Tue, Aug 10, priced at $324 found 4 days ago
Fri, Oct 30 - Mon, Nov 2
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$325 Roundtrip, found 3 days ago
$325
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 30 from Washington Dulles Intl. to Burlington Intl., returning Mon, Nov 2, priced at $325 found 3 days ago
Mon, Jan 18 - Sat, Jan 23
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$337 Roundtrip, found 2 days ago
$337
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jan 18 from Washington Dulles Intl. to Burlington Intl., returning Sat, Jan 23, priced at $337 found 2 days ago
Thu, Mar 18 - Sun, Mar 21
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$339 Roundtrip, found 2 days ago
$339
Roundtrip
found 2 days ago
Select United flight, departing Thu, Mar 18 from Washington Dulles Intl. to Burlington Intl., returning Sun, Mar 21, priced at $339 found 2 days ago
Sat, Nov 7 - Sun, Nov 8
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$345 Roundtrip, found 3 hours ago
$345
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Nov 7 from Washington Dulles Intl. to Burlington Intl., returning Sun, Nov 8, priced at $345 found 3 hours 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.