United Flight 3646 Deals & Information (2026/2027)

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United Flight 3646 Route Deals From $103

The cheapest prices found with in the last 7 days for return flights were $208 and $103 for one-way flights to John Glenn Columbus Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Mar 28 - Wed, Apr 8
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$208 Roundtrip, found 2 days ago
$208
Roundtrip
found 2 days ago
Select United flight, departing Sat, Mar 28 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Wed, Apr 8, priced at $208 found 2 days ago
Tue, Mar 24 - Thu, Mar 26
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$213 Roundtrip, found 14 hours ago
$213
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Mar 24 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Thu, Mar 26, priced at $213 found 14 hours ago
Wed, Apr 22 - Thu, Apr 23
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$215 Roundtrip, found 21 hours ago
$215
Roundtrip
found 21 hours ago
Select United flight, departing Wed, Apr 22 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Thu, Apr 23, priced at $215 found 21 hours ago
Fri, Apr 24 - Sat, Apr 25
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$218 Roundtrip, found 21 hours ago
$218
Roundtrip
found 21 hours ago
Select United flight, departing Fri, Apr 24 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Sat, Apr 25, priced at $218 found 21 hours ago
Wed, Mar 4 - Thu, Mar 5
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$224 Roundtrip, found 4 days ago
$224
Roundtrip
found 4 days ago
Select United flight, departing Wed, Mar 4 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Thu, Mar 5, priced at $224 found 4 days ago
Tue, Mar 24 - Thu, Mar 26
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$233 Roundtrip, found 14 hours ago
$233
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Mar 24 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Thu, Mar 26, priced at $233 found 14 hours ago
Fri, Apr 10 - Tue, Apr 14
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$238 Roundtrip, found 5 days ago
$238
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 10 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Tue, Apr 14, priced at $238 found 5 days ago
Fri, Apr 24 - Sat, Apr 25
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$239 Roundtrip, found 21 hours ago
$239
Roundtrip
found 21 hours ago
Select United flight, departing Fri, Apr 24 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Sat, Apr 25, priced at $239 found 21 hours ago
Thu, Apr 9 - Sun, Apr 12
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$245 Roundtrip, found 3 days ago
$245
Roundtrip
found 3 days ago
Select United flight, departing Thu, Apr 9 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Sun, Apr 12, priced at $245 found 3 days ago
Tue, Mar 24 - Thu, Mar 26
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$275 Roundtrip, found 14 hours ago
$275
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Mar 24 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Thu, Mar 26, priced at $275 found 14 hours ago
Fri, Mar 20 - Sun, Mar 22
IAD
Washington Dulles Intl.
CMH
John Glenn Columbus Intl.
$282 Roundtrip, found 11 hours ago
$282
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Mar 20 from Washington Dulles Intl. to John Glenn Columbus Intl., returning Sun, Mar 22, priced at $282 found 11 hours ago

Frequently asked questions

What route does flight number UA3646 take?
Flight number UA3646 takes approximately 3 hours and 37 minutes to fly non-stop from O'Hare Airport to Salt Lake City, UT Airport (SLC-Salt Lake City Intl.). We all know there's magic in the destination, but getting there is half the fun!
What terminal does UA3646 fly out of?
Flight number UA3646 runs between Chicago, IL Airport (ORD-O'Hare Intl.) and Salt Lake City Intl. Airport, and those taking this flight usually board the plane from Terminal 2.
What kind of plane is on flight number UA3646?
The Embraer 175 is the aircraft that's mostly used for flight number UA3646. This flight almost always departs from Chicago, IL Airport (ORD-O'Hare Intl.) and touches down at Salt Lake City, UT Airport (SLC-Salt Lake City Intl.).
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 UA3646 flight with Travelocity, please visit our Customer Service Portal.