United Flight 4574 Deals & Information (2026/2027)

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United Flight 4574 Route Deals From $234

The cheapest prices found with in the last 7 days for return flights were $239 and $234 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 9 - Sun, Jul 12
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$239 Roundtrip, found 2 hours ago
$239
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Jul 9 from Philadelphia Intl. to Washington Dulles Intl., returning Sun, Jul 12, priced at $239 found 2 hours ago
Thu, Jul 9 - Sun, Jul 12
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$263 Roundtrip, found 2 hours ago
$263
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Jul 9 from Philadelphia Intl. to Washington Dulles Intl., returning Sun, Jul 12, priced at $263 found 2 hours ago
Fri, May 8 - Sat, May 9
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$264 Roundtrip, found 7 hours ago
$264
Roundtrip
found 7 hours ago
Select United flight, departing Fri, May 8 from Philadelphia Intl. to Washington Dulles Intl., returning Sat, May 9, priced at $264 found 7 hours ago
Mon, Aug 17 - Mon, Aug 24
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$265 Roundtrip, found 5 days ago
$265
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 17 from Philadelphia Intl. to Washington Dulles Intl., returning Mon, Aug 24, priced at $265 found 5 days ago
Fri, May 8 - Sat, May 9
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$278 Roundtrip, found 7 hours ago
$278
Roundtrip
found 7 hours ago
Select United flight, departing Fri, May 8 from Philadelphia Intl. to Washington Dulles Intl., returning Sat, May 9, priced at $278 found 7 hours ago
Fri, May 8 - Sat, May 9
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$279 Roundtrip, found 7 hours ago
$279
Roundtrip
found 7 hours ago
Select United flight, departing Fri, May 8 from Philadelphia Intl. to Washington Dulles Intl., returning Sat, May 9, priced at $279 found 7 hours ago
Mon, Aug 17 - Mon, Aug 24
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$280 Roundtrip, found 5 days ago
$280
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 17 from Philadelphia Intl. to Washington Dulles Intl., returning Mon, Aug 24, priced at $280 found 5 days ago
Thu, Apr 23 - Sun, Apr 26
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$292 Roundtrip, found 4 days ago
$292
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 23 from Philadelphia Intl. to Washington Dulles Intl., returning Sun, Apr 26, priced at $292 found 4 days ago
Fri, May 8 - Sat, May 9
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$294 Roundtrip, found 7 hours ago
$294
Roundtrip
found 7 hours ago
Select United flight, departing Fri, May 8 from Philadelphia Intl. to Washington Dulles Intl., returning Sat, May 9, priced at $294 found 7 hours ago
Mon, Aug 17 - Mon, Aug 24
PHL
Philadelphia Intl.
IAD
Washington Dulles Intl.
$305 Roundtrip, found 5 days ago
$305
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 17 from Philadelphia Intl. to Washington Dulles Intl., returning Mon, Aug 24, priced at $305 found 5 days ago

Frequently asked questions

What route does flight number UA4574 take?
Flight number UA4574 operates non-stop from Chicago, IL Airport (ORD-O'Hare Intl.) to Tulsa Intl. Airport (TUL). During this trip, expect to be in the air for about 2 hours and 2 minutes. Consider booking ahead to get your favorite seat.
What terminal does UA4574 fly out of?
Flight number UA4574 runs between O'Hare Airport and Tulsa, OK Airport (TUL-Tulsa Intl.), and travelers with a seat on this flight usually depart from Terminal 1.
What kind of plane is on flight number UA4574?
Chances are you'll be hopping on board the Canadair (Bombardier) Regional Jet 550 if you're booked on flight number UA4574. This flight nearly always leaves from ORD and touches down at Tulsa, OK Airport (TUL-Tulsa 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 UA4574 flight with Travelocity, please visit our Customer Service Portal.