United Flight 4527 Deals & Information (2025/2026)

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United Flight 4527 Route Deals From $90

The cheapest prices found with in the last 7 days for return flights were $177 and $90 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 14 - Wed, Oct 15
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$177 Roundtrip, found 5 days ago
$177
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Wed, Oct 15, priced at $177 found 5 days ago
Wed, Aug 6 - Thu, Aug 7
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$180 Roundtrip, found 5 days ago
$180
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug 6 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Thu, Aug 7, priced at $180 found 5 days ago
Wed, Aug 6 - Thu, Aug 7
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$189 Roundtrip, found 5 days ago
$189
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug 6 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Thu, Aug 7, priced at $189 found 5 days ago
Tue, Oct 14 - Wed, Oct 15
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$198 Roundtrip, found 5 days ago
$198
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Wed, Oct 15, priced at $198 found 5 days ago
Tue, Oct 14 - Wed, Oct 15
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$213 Roundtrip, found 5 days ago
$213
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Wed, Oct 15, priced at $213 found 5 days ago
Wed, Jul 30 - Wed, Aug 6
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$217 Roundtrip, found 6 days ago
$217
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jul 30 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Wed, Aug 6, priced at $217 found 6 days ago
Wed, Sep 3 - Sun, Sep 7
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$223 Roundtrip, found 1 day ago
$223
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 3 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $223 found 1 day ago
Wed, Aug 6 - Thu, Aug 7
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$225 Roundtrip, found 5 days ago
$225
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug 6 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Thu, Aug 7, priced at $225 found 5 days ago
Tue, Sep 30 - Fri, Oct 3
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$233 Roundtrip, found 6 days ago
$233
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 30 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Fri, Oct 3, priced at $233 found 6 days ago
Thu, Aug 7 - Fri, Aug 8
IAD
Washington Dulles Intl.
STL
Lambert-St. Louis Intl.
$238 Roundtrip, found 5 days ago
$238
Roundtrip
found 5 days ago
Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Lambert-St. Louis Intl., returning Fri, Aug 8, priced at $238 found 5 days 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.