United Flight 3689 Deals & Information (2026/2027)

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United Flight 3689 Route Deals From $83

The cheapest prices found with in the last 7 days for return flights were $142 and $83 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Apr 16 - Sat, Apr 18
IAD
Washington Dulles Intl.
LGA
LaGuardia
$142 Roundtrip, found 6 days ago
$142
Roundtrip
found 6 days ago
Select United flight, departing Thu, Apr 16 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 18, priced at $142 found 6 days ago
Fri, Apr 17 - Sat, Apr 18
IAD
Washington Dulles Intl.
LGA
LaGuardia
$144 Roundtrip, found 6 days ago
$144
Roundtrip
found 6 days ago
Select United flight, departing Fri, Apr 17 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 18, priced at $144 found 6 days ago
Fri, Apr 10 - Sun, Apr 12
IAD
Washington Dulles Intl.
LGA
LaGuardia
$159 Roundtrip, found 5 days ago
$159
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 10 from Washington Dulles Intl. to LaGuardia, returning Sun, Apr 12, priced at $159 found 5 days ago
Thu, Apr 16 - Sat, Apr 18
IAD
Washington Dulles Intl.
LGA
LaGuardia
$164 Roundtrip, found 6 days ago
$164
Roundtrip
found 6 days ago
Select United flight, departing Thu, Apr 16 from Washington Dulles Intl. to LaGuardia, returning Sat, Apr 18, priced at $164 found 6 days ago
Mon, Mar 30 - Tue, Mar 31
IAD
Washington Dulles Intl.
LGA
LaGuardia
$172 Roundtrip, found 5 days ago
$172
Roundtrip
found 5 days ago
Select United flight, departing Mon, Mar 30 from Washington Dulles Intl. to LaGuardia, returning Tue, Mar 31, priced at $172 found 5 days ago
Thu, Apr 16 - Fri, Apr 17
IAD
Washington Dulles Intl.
LGA
LaGuardia
$186 Roundtrip, found 6 days ago
$186
Roundtrip
found 6 days ago
Select United flight, departing Thu, Apr 16 from Washington Dulles Intl. to LaGuardia, returning Fri, Apr 17, priced at $186 found 6 days ago
Wed, Jul 29 - Thu, Jul 30
IAD
Washington Dulles Intl.
LGA
LaGuardia
$188 Roundtrip, found 6 days ago
$188
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jul 29 from Washington Dulles Intl. to LaGuardia, returning Thu, Jul 30, priced at $188 found 6 days ago
Fri, Apr 17 - Sun, Apr 19
IAD
Washington Dulles Intl.
LGA
LaGuardia
$191 Roundtrip, found 6 hours ago
$191
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Apr 17 from Washington Dulles Intl. to LaGuardia, returning Sun, Apr 19, priced at $191 found 6 hours ago
Fri, Apr 10 - Sun, Apr 12
IAD
Washington Dulles Intl.
LGA
LaGuardia
$193 Roundtrip, found 5 days ago
$193
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 10 from Washington Dulles Intl. to LaGuardia, returning Sun, Apr 12, priced at $193 found 5 days ago
Sat, Aug 29 - Fri, Sep 4
IAD
Washington Dulles Intl.
LGA
LaGuardia
$210 Roundtrip, found 2 days ago
$210
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 29 from Washington Dulles Intl. to LaGuardia, returning Fri, Sep 4, priced at $210 found 2 days ago
Fri, Apr 17 - Sun, Apr 19
IAD
Washington Dulles Intl.
LGA
LaGuardia
$217 Roundtrip, found 6 hours ago
$217
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Apr 17 from Washington Dulles Intl. to LaGuardia, returning Sun, Apr 19, priced at $217 found 6 hours ago
Sat, Aug 29 - Fri, Sep 4
IAD
Washington Dulles Intl.
LGA
LaGuardia
$236 Roundtrip, found 2 days ago
$236
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 29 from Washington Dulles Intl. to LaGuardia, returning Fri, Sep 4, priced at $236 found 2 days ago
Fri, Apr 17 - Sun, Apr 19
IAD
Washington Dulles Intl.
LGA
LaGuardia
$237 Roundtrip, found 6 hours ago
$237
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Apr 17 from Washington Dulles Intl. to LaGuardia, returning Sun, Apr 19, priced at $237 found 6 hours ago
Sat, Aug 29 - Fri, Sep 4
IAD
Washington Dulles Intl.
LGA
LaGuardia
$241 Roundtrip, found 2 days ago
$241
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 29 from Washington Dulles Intl. to LaGuardia, returning Fri, Sep 4, priced at $241 found 2 days ago