United Flight 3596 Deals & Information (2025/2026)

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United Flight 3596 Route Deals From $50

The cheapest prices found with in the last 7 days for return flights were $99 and $50 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jan 26 - Tue, Jan 27
LGA
LaGuardia
IAD
Washington Dulles Intl.
$99 Roundtrip, found 1 day ago
$99
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jan 26 from LaGuardia to Washington Dulles Intl., returning Tue, Jan 27, priced at $99 found 1 day ago
Sun, Jan 18 - Mon, Jan 19
LGA
LaGuardia
IAD
Washington Dulles Intl.
$105 Roundtrip, found 2 days ago
$105
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 18 from LaGuardia to Washington Dulles Intl., returning Mon, Jan 19, priced at $105 found 2 days ago
Tue, Mar 3 - Thu, Mar 5
LGA
LaGuardia
IAD
Washington Dulles Intl.
$129 Roundtrip, found 5 days ago
$129
Roundtrip
found 5 days ago
Select United flight, departing Tue, Mar 3 from LaGuardia to Washington Dulles Intl., returning Thu, Mar 5, priced at $129 found 5 days ago
Tue, Mar 3 - Thu, Mar 5
LGA
LaGuardia
IAD
Washington Dulles Intl.
$131 Roundtrip, found 5 days ago
$131
Roundtrip
found 5 days ago
Select United flight, departing Tue, Mar 3 from LaGuardia to Washington Dulles Intl., returning Thu, Mar 5, priced at $131 found 5 days ago
Tue, Mar 3 - Thu, Mar 5
LGA
LaGuardia
IAD
Washington Dulles Intl.
$132 Roundtrip, found 5 days ago
$132
Roundtrip
found 5 days ago
Select United flight, departing Tue, Mar 3 from LaGuardia to Washington Dulles Intl., returning Thu, Mar 5, priced at $132 found 5 days ago
Fri, Jan 16 - Mon, Jan 19
LGA
LaGuardia
IAD
Washington Dulles Intl.
$132 Roundtrip, found 2 days ago
$132
Roundtrip
found 2 days ago
Select United flight, departing Fri, Jan 16 from LaGuardia to Washington Dulles Intl., returning Mon, Jan 19, priced at $132 found 2 days ago
Sun, Jan 11 - Mon, Jan 12
LGA
LaGuardia
IAD
Washington Dulles Intl.
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 11 from LaGuardia to Washington Dulles Intl., returning Mon, Jan 12, priced at $151 found 1 day ago
Mon, Jan 26 - Tue, Jan 27
LGA
LaGuardia
IAD
Washington Dulles Intl.
$161 Roundtrip, found 1 day ago
$161
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jan 26 from LaGuardia to Washington Dulles Intl., returning Tue, Jan 27, priced at $161 found 1 day ago
Sun, Jan 18 - Mon, Jan 19
LGA
LaGuardia
IAD
Washington Dulles Intl.
$167 Roundtrip, found 2 days ago
$167
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 18 from LaGuardia to Washington Dulles Intl., returning Mon, Jan 19, priced at $167 found 2 days ago
Tue, Mar 3 - Thu, Mar 5
LGA
LaGuardia
IAD
Washington Dulles Intl.
$181 Roundtrip, found 5 days ago
$181
Roundtrip
found 5 days ago
Select United flight, departing Tue, Mar 3 from LaGuardia to Washington Dulles Intl., returning Thu, Mar 5, priced at $181 found 5 days ago

Frequently asked questions

What route does flight number UA3596 take?
UA3596 takes several routes. The most frequently flown is PWM to O'Hare Airport, which is a direct flight. This flight takes around 2 hours and 49 minutes. However, there may be other flights with this number that are multi-stop.
What kind of plane is on flight number UA3596?
UA3596 is a flight number that's used on many routes. If you've booked a ticket on the most popular route, Portland Intl. Jetport to ORD, there's a good chance you'll be boarding an 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 UA3596 flight with Travelocity, please visit our Customer Service Portal.