United Flight 3663 Deals & Information (2026/2027)

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United Flight 3663 Route Deals From $200

The cheapest prices found with in the last 7 days for return flights were $319 and $200 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jun 11 - Sun, Jun 13
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 11 from Pittsburgh Intl. to Washington Dulles Intl., returning Sun, Jun 13, priced at $319 found 1 day ago
Mon, Dec 21 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$325 Roundtrip, found 3 days ago
$325
Roundtrip
found 3 days ago
Select United flight, departing Mon, Dec 21 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $325 found 3 days ago
Tue, Dec 15 - Sat, Jan 9
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$329 Roundtrip, found 15 hours ago
$329
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Dec 15 from Pittsburgh Intl. to Washington Dulles Intl., returning Sat, Jan 9, priced at $329 found 15 hours ago
Tue, Dec 22 - Sat, Dec 26
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$335 Roundtrip, found 14 hours ago
$335
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Dec 22 from Pittsburgh Intl. to Washington Dulles Intl., returning Sat, Dec 26, priced at $335 found 14 hours ago
Mon, Dec 21 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$347 Roundtrip, found 3 days ago
$347
Roundtrip
found 3 days ago
Select United flight, departing Mon, Dec 21 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $347 found 3 days ago
Tue, Dec 1 - Sat, Dec 5
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$351 Roundtrip, found 1 day ago
$351
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 1 from Pittsburgh Intl. to Washington Dulles Intl., returning Sat, Dec 5, priced at $351 found 1 day ago
Thu, Dec 24 - Thu, Dec 31
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$352 Roundtrip, found 1 day ago
$352
Roundtrip
found 1 day ago
Select United flight, departing Thu, Dec 24 from Pittsburgh Intl. to Washington Dulles Intl., returning Thu, Dec 31, priced at $352 found 1 day ago
Fri, Nov 27 - Sun, Nov 29
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$356 Roundtrip, found 2 days ago
$356
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 27 from Pittsburgh Intl. to Washington Dulles Intl., returning Sun, Nov 29, priced at $356 found 2 days ago
Thu, Nov 26 - Fri, Nov 27
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$357 Roundtrip, found 1 day ago
$357
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 26 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Nov 27, priced at $357 found 1 day ago
Tue, Dec 22 - Sat, Dec 26
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$362 Roundtrip, found 14 hours ago
$362
Roundtrip
found 14 hours ago
Select United flight, departing Tue, Dec 22 from Pittsburgh Intl. to Washington Dulles Intl., returning Sat, Dec 26, priced at $362 found 14 hours ago
Fri, Jun 11 - Sun, Jun 13
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$362 Roundtrip, found 1 day ago
$362
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 11 from Pittsburgh Intl. to Washington Dulles Intl., returning Sun, Jun 13, priced at $362 found 1 day ago

Frequently asked questions

What route does flight number UA3663 take?
UA3663 takes multiple routes. The most frequently flown is Detroit Metropolitan Wayne County Airport (DTW) to Newark, NJ Airport (EWR-Liberty Intl.), which is a direct flight. This flight typically takes 1 hour and 42 minutes. That said, there may possibly be other flights with the same number that are multi-stop.
What terminal does UA3663 fly out of?
If you're heading off from Detroit Metropolitan Wayne County Airport (DTW), you'll likely board the plane from Terminal N. The most traveled route for flight number UA3663 is Metro Airport to EWR, which is a nonstop flight.
What kind of plane is on flight number UA3663?
It's highly likely you'll be cruising aboard an Embraer 170 if you've booked a seat on flight number UA3663 from Detroit, MI Airport (DTW-Detroit Metropolitan Wayne County) to Newark Airport. This is the most commonly used type of aircraft on this popular route.
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 UA3663 flight with Travelocity, please visit our Customer Service Portal.