United Flight UA6151 Deals & Information (2025/2026)

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United Flight 6151 Route Deals From $68

The cheapest prices found with in the last 7 days for return flights were $165 and $68 for one-way flights to Louisville Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 23 - Sun, Aug 24
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$165 Roundtrip, found 6 days ago
$165
Roundtrip
found 6 days ago
Select United flight, departing Sat, Aug 23 from George Bush Intercontinental to Louisville Intl., returning Sun, Aug 24, priced at $165 found 6 days ago
Sat, Aug 23 - Sun, Aug 24
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$172 Roundtrip, found 6 days ago
$172
Roundtrip
found 6 days ago
Select United flight, departing Sat, Aug 23 from George Bush Intercontinental to Louisville Intl., returning Sun, Aug 24, priced at $172 found 6 days ago
Fri, Sep 12 - Fri, Sep 19
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$173 Roundtrip, found 6 days ago
$173
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 12 from George Bush Intercontinental to Louisville Intl., returning Fri, Sep 19, priced at $173 found 6 days ago
Wed, Aug 20 - Thu, Aug 21
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$176 Roundtrip, found 6 days ago
$176
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from George Bush Intercontinental to Louisville Intl., returning Thu, Aug 21, priced at $176 found 6 days ago
Fri, Sep 12 - Fri, Sep 19
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$183 Roundtrip, found 6 days ago
$183
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 12 from George Bush Intercontinental to Louisville Intl., returning Fri, Sep 19, priced at $183 found 6 days ago
Wed, Aug 20 - Thu, Aug 21
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$186 Roundtrip, found 6 days ago
$186
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from George Bush Intercontinental to Louisville Intl., returning Thu, Aug 21, priced at $186 found 6 days ago
Sat, Aug 23 - Sun, Aug 24
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$196 Roundtrip, found 6 days ago
$196
Roundtrip
found 6 days ago
Select United flight, departing Sat, Aug 23 from George Bush Intercontinental to Louisville Intl., returning Sun, Aug 24, priced at $196 found 6 days ago
Sat, Aug 23 - Sun, Aug 24
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$201 Roundtrip, found 6 days ago
$201
Roundtrip
found 6 days ago
Select United flight, departing Sat, Aug 23 from George Bush Intercontinental to Louisville Intl., returning Sun, Aug 24, priced at $201 found 6 days ago
Wed, Aug 20 - Thu, Aug 21
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$202 Roundtrip, found 6 days ago
$202
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from George Bush Intercontinental to Louisville Intl., returning Thu, Aug 21, priced at $202 found 6 days ago
Wed, Aug 20 - Thu, Aug 21
IAH
George Bush Intercontinental
SDF
Louisville Intl.
$209 Roundtrip, found 6 days ago
$209
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from George Bush Intercontinental to Louisville Intl., returning Thu, Aug 21, priced at $209 found 6 days ago