United Flight 3689 Deals & Information (2026/2027)

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United Flight 3689 Route Deals From $72

The cheapest prices found with in the last 7 days for return flights were $139 and $72 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 2 - Sat, Jun 6
IAD
Washington Dulles Intl.
LGA
LaGuardia
$139 Roundtrip, found 4 days ago
$139
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 2 from Washington Dulles Intl. to LaGuardia, returning Sat, Jun 6, priced at $139 found 4 days ago
Thu, Apr 16 - Sat, Apr 18
IAD
Washington Dulles Intl.
LGA
LaGuardia
$142 Roundtrip, found 4 days ago
$142
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 16 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 18, priced at $142 found 4 days ago
Fri, Apr 17 - Sat, Apr 18
IAD
Washington Dulles Intl.
LGA
LaGuardia
$144 Roundtrip, found 4 days ago
$144
Roundtrip
found 4 days ago
Select United flight, departing Fri, Apr 17 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 18, priced at $144 found 4 days ago
Wed, Jun 3 - Sun, Jun 7
IAD
Washington Dulles Intl.
LGA
LaGuardia
$154 Roundtrip, found 4 days ago
$154
Roundtrip
found 4 days ago
Select United flight, departing Wed, Jun 3 from Washington Dulles Intl. to LaGuardia, returning Sun, Jun 7, priced at $154 found 4 days ago
Fri, Apr 10 - Sun, Apr 12
IAD
Washington Dulles Intl.
LGA
LaGuardia
$159 Roundtrip, found 2 days ago
$159
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 10 from Washington Dulles Intl. to LaGuardia, returning Sun, Apr 12, priced at $159 found 2 days ago
Thu, Apr 16 - Sat, Apr 18
IAD
Washington Dulles Intl.
LGA
LaGuardia
$164 Roundtrip, found 4 days ago
$164
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 16 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 18, priced at $164 found 4 days ago
Fri, Apr 17 - Sat, Apr 25
IAD
Washington Dulles Intl.
LGA
LaGuardia
$170 Roundtrip, found 6 days ago
$170
Roundtrip
found 6 days ago
Select United flight, departing Fri, Apr 17 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 25, priced at $170 found 6 days ago
Mon, Mar 30 - Tue, Mar 31
IAD
Washington Dulles Intl.
LGA
LaGuardia
$172 Roundtrip, found 3 days ago
$172
Roundtrip
found 3 days ago
Select United flight, departing Mon, Mar 30 from Washington Dulles Intl. to LaGuardia, returning Tue, Mar 31, priced at $172 found 3 days ago
Tue, Jun 2 - Sat, Jun 6
IAD
Washington Dulles Intl.
LGA
LaGuardia
$173 Roundtrip, found 4 days ago
$173
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 2 from Washington Dulles Intl. to LaGuardia, returning Sat, Jun 6, priced at $173 found 4 days ago
Tue, Jun 2 - Sat, Jun 6
IAD
Washington Dulles Intl.
LGA
LaGuardia
$185 Roundtrip, found 4 days ago
$185
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 2 from Washington Dulles Intl. to LaGuardia, returning Sat, Jun 6, priced at $185 found 4 days ago
Thu, Apr 16 - Fri, Apr 17
IAD
Washington Dulles Intl.
LGA
LaGuardia
$186 Roundtrip, found 4 days ago
$186
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 16 from Washington Dulles Intl. to LaGuardia, returning Fri, Apr 17, priced at $186 found 4 days ago
Wed, Jul 29 - Thu, Jul 30
IAD
Washington Dulles Intl.
LGA
LaGuardia
$188 Roundtrip, found 4 days ago
$188
Roundtrip
found 4 days ago
Select United flight, departing Wed, Jul 29 from Washington Dulles Intl. to LaGuardia, returning Thu, Jul 30, priced at $188 found 4 days ago
Fri, Apr 17 - Sat, Apr 25
IAD
Washington Dulles Intl.
LGA
LaGuardia
$191 Roundtrip, found 6 days ago
$191
Roundtrip
found 6 days ago
Select United flight, departing Fri, Apr 17 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 25, priced at $191 found 6 days ago