United Flight UA4527 Deals & Information (2025/2026)

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United Flight 4527 Route Deals From $128

The cheapest prices found with in the last 7 days for return flights were $256 and $128 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$256 Roundtrip, found 2 hours ago
$256
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Tue, Nov 11, priced at $256 found 2 hours ago
Wed, Oct 22 - Thu, Oct 23
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$260 Roundtrip, found 1 day ago
$260
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 22 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Thu, Oct 23, priced at $260 found 1 day ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$264 Roundtrip, found 2 hours ago
$264
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Tue, Nov 11, priced at $264 found 2 hours ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$266 Roundtrip, found 2 hours ago
$266
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Tue, Nov 11, priced at $266 found 2 hours ago
Wed, Oct 22 - Thu, Oct 23
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 22 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Thu, Oct 23, priced at $269 found 1 day ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$273 Roundtrip, found 2 hours ago
$273
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Tue, Nov 11, priced at $273 found 2 hours ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$280 Roundtrip, found 2 hours ago
$280
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Tue, Nov 11, priced at $280 found 2 hours ago

Frequently asked questions

What route does flight number UA4527 take?
UA4527 flies directly from Harrisburg Intl. Airport (MDT) to ORD in about 2 hours and 7 minutes. It can sometimes be used on other routes though, some of which could be multi-stop flights. Keep an eye out for this when booking your airfare to avoid any mix-ups.
What kind of plane is on flight number UA4527?
There's a good chance you'll be on the Canadair (Bombardier) Regional Jet 550 if you're flying from Harrisburg Intl. Airport (MDT) to Chicago, IL Airport (ORD-O'Hare Intl.), a common route for flight number UA4527.
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 UA4527 flight with Travelocity, please visit our Customer Service Portal.