United Flight UA4573 Deals & Information (2025/2026)

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United Flight 4573 Route Deals From $91

The cheapest prices found with in the last 7 days for return flights were $191 and $91 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 2 - Tue, Aug 5
RIC
Richmond Intl.
ORD
O'Hare Intl.
$191 Roundtrip, found 6 hours ago
$191
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Aug 2 from Richmond Intl. to O'Hare Intl., returning Tue, Aug 5, priced at $191 found 6 hours ago
Wed, Aug 6 - Sat, Aug 9
RIC
Richmond Intl.
ORD
O'Hare Intl.
$194 Roundtrip, found 2 hours ago
$194
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Aug 6 from Richmond Intl. to O'Hare Intl., returning Sat, Aug 9, priced at $194 found 2 hours ago
Tue, Aug 5 - Sat, Aug 9
RIC
Richmond Intl.
ORD
O'Hare Intl.
$195 Roundtrip, found 1 day ago
$195
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 5 from Richmond Intl. to O'Hare Intl., returning Sat, Aug 9, priced at $195 found 1 day ago
Mon, Sep 8 - Wed, Sep 10
RIC
Richmond Intl.
ORD
O'Hare Intl.
$197 Roundtrip, found 4 days ago
$197
Roundtrip
found 4 days ago
Select United flight, departing Mon, Sep 8 from Richmond Intl. to O'Hare Intl., returning Wed, Sep 10, priced at $197 found 4 days ago
Tue, Aug 5 - Sat, Aug 9
RIC
Richmond Intl.
ORD
O'Hare Intl.
$199 Roundtrip, found 1 day ago
$199
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 5 from Richmond Intl. to O'Hare Intl., returning Sat, Aug 9, priced at $199 found 1 day ago
Sat, Aug 2 - Tue, Aug 5
RIC
Richmond Intl.
ORD
O'Hare Intl.
$203 Roundtrip, found 6 hours ago
$203
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Aug 2 from Richmond Intl. to O'Hare Intl., returning Tue, Aug 5, priced at $203 found 6 hours ago
Wed, Aug 6 - Sat, Aug 9
RIC
Richmond Intl.
ORD
O'Hare Intl.
$209 Roundtrip, found 2 hours ago
$209
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Aug 6 from Richmond Intl. to O'Hare Intl., returning Sat, Aug 9, priced at $209 found 2 hours ago
Mon, Sep 8 - Wed, Sep 10
RIC
Richmond Intl.
ORD
O'Hare Intl.
$210 Roundtrip, found 4 days ago
$210
Roundtrip
found 4 days ago
Select United flight, departing Mon, Sep 8 from Richmond Intl. to O'Hare Intl., returning Wed, Sep 10, priced at $210 found 4 days ago
Mon, Sep 8 - Wed, Sep 10
RIC
Richmond Intl.
ORD
O'Hare Intl.
$215 Roundtrip, found 4 days ago
$215
Roundtrip
found 4 days ago
Select United flight, departing Mon, Sep 8 from Richmond Intl. to O'Hare Intl., returning Wed, Sep 10, priced at $215 found 4 days ago
Thu, Aug 7 - Mon, Aug 11
RIC
Richmond Intl.
ORD
O'Hare Intl.
$218 Roundtrip, found 6 hours ago
$218
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Aug 7 from Richmond Intl. to O'Hare Intl., returning Mon, Aug 11, priced at $218 found 6 hours ago
Sat, Aug 9 - Tue, Aug 12
RIC
Richmond Intl.
ORD
O'Hare Intl.
$222 Roundtrip, found 6 hours ago
$222
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Aug 9 from Richmond Intl. to O'Hare Intl., returning Tue, Aug 12, priced at $222 found 6 hours ago
Mon, Sep 8 - Wed, Sep 10
RIC
Richmond Intl.
ORD
O'Hare Intl.
$224 Roundtrip, found 4 days ago
$224
Roundtrip
found 4 days ago
Select United flight, departing Mon, Sep 8 from Richmond Intl. to O'Hare Intl., returning Wed, Sep 10, priced at $224 found 4 days ago

Frequently asked questions

What route does flight number UA4573 take?
UA4573 flies non-stop from Nantucket Memorial Airport to Washington Dulles Intl. Airport (IAD). During this journey, expect to be in the air for around 1 hour and 53 minutes. It's wise to book ahead to secure your favorite seat.
What kind of plane is on flight number UA4573?
The route for flight number UA4573 is usually Nantucket Memorial Airport (ACK) to IAD, and the Canadair (Bombardier) Regional Jet 550 is the aircraft model you'll probably be flying with.
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 UA4573 flight with Travelocity, please visit our Customer Service Portal.