United Flight 3663 Deals & Information (2026/2027)

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United Flight 3663 Route Deals From $195

The cheapest prices found with in the last 7 days for return flights were $117 and $195 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$117 Roundtrip, found 3 days ago
$117
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $117 found 3 days ago
Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$184 Roundtrip, found 3 days ago
$184
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $184 found 3 days ago
Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$207 Roundtrip, found 3 days ago
$207
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $207 found 3 days ago
Wed, Nov 25 - Sun, Nov 29
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$213 Roundtrip, found 3 days ago
$213
Roundtrip
found 3 days ago
Select United flight, departing Wed, Nov 25 from Pittsburgh Intl. to Washington Dulles Intl., returning Sun, Nov 29, priced at $213 found 3 days ago
Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$221 Roundtrip, found 3 days ago
$221
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $221 found 3 days ago
Thu, Nov 12 - Thu, Nov 19
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$228 Roundtrip, found 6 days ago
$228
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Thu, Nov 19, priced at $228 found 6 days ago
Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$247 Roundtrip, found 3 days ago
$247
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $247 found 3 days ago
Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$274 Roundtrip, found 3 days ago
$274
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $274 found 3 days ago
Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$275 Roundtrip, found 3 days ago
$275
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $275 found 3 days ago
Sat, Dec 12 - Fri, Jan 8
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$277 Roundtrip, found 3 days ago
$277
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 12 from Pittsburgh Intl. to Washington Dulles Intl., returning Fri, Jan 8, priced at $277 found 3 days 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.