United Flight UA4539 Deals & Information (2025/2026)

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United Flight 4539 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $192 and $204 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 7 - Mon, Aug 11
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$192 Roundtrip, found 19 hours ago
$192
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Philadelphia Intl., returning Mon, Aug 11, priced at $192 found 19 hours ago
Thu, Aug 7 - Mon, Aug 11
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$197 Roundtrip, found 19 hours ago
$197
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Philadelphia Intl., returning Mon, Aug 11, priced at $197 found 19 hours ago
Sat, Aug 2 - Sun, Aug 3
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$202 Roundtrip, found 2 days ago
$202
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 2 from Washington Dulles Intl. to Philadelphia Intl., returning Sun, Aug 3, priced at $202 found 2 days ago
Sat, Aug 2 - Sun, Aug 3
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 2 from Washington Dulles Intl. to Philadelphia Intl., returning Sun, Aug 3, priced at $237 found 2 days ago
Thu, Aug 7 - Mon, Aug 11
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$252 Roundtrip, found 19 hours ago
$252
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Philadelphia Intl., returning Mon, Aug 11, priced at $252 found 19 hours ago
Thu, Aug 7 - Mon, Aug 11
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$257 Roundtrip, found 19 hours ago
$257
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Philadelphia Intl., returning Mon, Aug 11, priced at $257 found 19 hours ago
Sat, Aug 2 - Sun, Aug 3
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 2 from Washington Dulles Intl. to Philadelphia Intl., returning Sun, Aug 3, priced at $262 found 2 days ago
Thu, Aug 7 - Mon, Aug 11
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$288 Roundtrip, found 19 hours ago
$288
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Philadelphia Intl., returning Mon, Aug 11, priced at $288 found 19 hours ago
Thu, Aug 7 - Mon, Aug 11
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$293 Roundtrip, found 19 hours ago
$293
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Philadelphia Intl., returning Mon, Aug 11, priced at $293 found 19 hours ago
Sat, Aug 2 - Sun, Aug 3
IAD
Washington Dulles Intl.
PHL
Philadelphia Intl.
$298 Roundtrip, found 2 days ago
$298
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 2 from Washington Dulles Intl. to Philadelphia Intl., returning Sun, Aug 3, priced at $298 found 2 days ago

Frequently asked questions

What route does flight number UA4539 take?
UA4539 is used on a range of routes. Most commonly, UA4539 flies direct from Cleveland Hopkins Intl. Airport to CHS. If that's your flight path, you'll be traveling for around 1 hour and 50 minutes.
What kind of plane is on flight number UA4539?
UA4539 is a flight number that is used on a number of routes. If you've booked a ticket on its most popular one, Cleveland Hopkins Intl. Airport to Charleston, SC Airport (CHS-Charleston Intl.), there's a strong chance you'll be cruising aboard the Canadair (Bombardier) Regional Jet 550.
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 UA4539 flight with Travelocity, please visit our Customer Service Portal.