United Flight UA3473 Deals & Information (2025/2026)

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United Flight 3473 Route Deals From $70

The cheapest prices found with in the last 7 days for return flights were $137 and $70 for one-way flights to Louisville Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 4 - Tue, Sep 9
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$137 Roundtrip, found 6 days ago
$137
Roundtrip
found 6 days ago
Select United flight, departing Thu, Sep 4 from Washington Dulles Intl. to Louisville Intl., returning Tue, Sep 9, priced at $137 found 6 days ago
Thu, Aug 14 - Sat, Aug 16
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$147 Roundtrip, found 1 day ago
$147
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 14 from Washington Dulles Intl. to Louisville Intl., returning Sat, Aug 16, priced at $147 found 1 day ago
Thu, Aug 14 - Sat, Aug 16
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$159 Roundtrip, found 1 day ago
$159
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 14 from Washington Dulles Intl. to Louisville Intl., returning Sat, Aug 16, priced at $159 found 1 day ago
Thu, Aug 14 - Sat, Aug 16
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$163 Roundtrip, found 1 day ago
$163
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 14 from Washington Dulles Intl. to Louisville Intl., returning Sat, Aug 16, priced at $163 found 1 day ago
Mon, Oct 20 - Sat, Oct 25
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$165 Roundtrip, found 5 days ago
$165
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 20 from Washington Dulles Intl. to Louisville Intl., returning Sat, Oct 25, priced at $165 found 5 days ago
Fri, Aug 1 - Wed, Aug 6
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$166 Roundtrip, found 5 days ago
$166
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 1 from Washington Dulles Intl. to Louisville Intl., returning Wed, Aug 6, priced at $166 found 5 days ago
Thu, Sep 4 - Tue, Sep 9
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$173 Roundtrip, found 6 days ago
$173
Roundtrip
found 6 days ago
Select United flight, departing Thu, Sep 4 from Washington Dulles Intl. to Louisville Intl., returning Tue, Sep 9, priced at $173 found 6 days ago
Mon, Oct 20 - Sat, Oct 25
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$175 Roundtrip, found 5 days ago
$175
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 20 from Washington Dulles Intl. to Louisville Intl., returning Sat, Oct 25, priced at $175 found 5 days ago
Thu, Aug 14 - Sat, Aug 16
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 14 from Washington Dulles Intl. to Louisville Intl., returning Sat, Aug 16, priced at $190 found 1 day ago
Mon, Oct 6 - Wed, Oct 8
IAD
Washington Dulles Intl.
SDF
Louisville Intl.
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select United flight, departing Mon, Oct 6 from Washington Dulles Intl. to Louisville Intl., returning Wed, Oct 8, priced at $192 found 1 day ago

Frequently asked questions

What route does flight number UA3473 take?
UA3473 serves multiple routes, but the most common is between Dane County Regional Airport (MSN) and ORD. If you manage to score a direct flight, you'll land in 58 minutes. Multi-stop flights can also operate under the same number, as can flights on other routes.
What kind of plane is on flight number UA3473?
UA3473 is a flight number that's used on multiple routes. If you've booked a seat on the most popular one, MSN to O'Hare Intl. Airport (ORD), you'll likely be climbing aboard an Embraer 170.
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 UA3473 flight with Travelocity, please visit our Customer Service Portal.