United Flight 5423 Deals & Information (2026/2027)

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United Flight 5423 Route Deals From $218

The cheapest prices found with in the last 7 days for return flights were $329 and $218 for one-way flights to Blue Grass for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
LEX
Blue Grass
$329 Roundtrip, found 2 days ago
$329
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 28 from O'Hare Intl. to Blue Grass, returning Sun, Jan 31, priced at $329 found 2 days ago
Sat, Dec 12 - Sun, Dec 13
ORD
O'Hare Intl.
LEX
Blue Grass
$344 Roundtrip, found 4 days ago
$344
Roundtrip
found 4 days ago
Select United flight, departing Sat, Dec 12 from O'Hare Intl. to Blue Grass, returning Sun, Dec 13, priced at $344 found 4 days ago
Sat, Jan 9 - Sun, Jan 10
ORD
O'Hare Intl.
LEX
Blue Grass
$358 Roundtrip, found 4 days ago
$358
Roundtrip
found 4 days ago
Select United flight, departing Sat, Jan 9 from O'Hare Intl. to Blue Grass, returning Sun, Jan 10, priced at $358 found 4 days ago
Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
LEX
Blue Grass
$359 Roundtrip, found 2 days ago
$359
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 28 from O'Hare Intl. to Blue Grass, returning Sun, Jan 31, priced at $359 found 2 days ago
Sun, Dec 27 - Mon, Dec 28
ORD
O'Hare Intl.
LEX
Blue Grass
$360 Roundtrip, found 4 days ago
$360
Roundtrip
found 4 days ago
Select United flight, departing Sun, Dec 27 from O'Hare Intl. to Blue Grass, returning Mon, Dec 28, priced at $360 found 4 days ago
Mon, Nov 23 - Sat, Nov 28
ORD
O'Hare Intl.
LEX
Blue Grass
$367 Roundtrip, found 1 day ago
$367
Roundtrip
found 1 day ago
Select United flight, departing Mon, Nov 23 from O'Hare Intl. to Blue Grass, returning Sat, Nov 28, priced at $367 found 1 day ago
Wed, Dec 9 - Sat, Jan 9
ORD
O'Hare Intl.
LEX
Blue Grass
$368 Roundtrip, found 3 hours ago
$368
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Dec 9 from O'Hare Intl. to Blue Grass, returning Sat, Jan 9, priced at $368 found 3 hours ago
Sun, Dec 27 - Thu, Dec 31
ORD
O'Hare Intl.
LEX
Blue Grass
$370 Roundtrip, found 4 days ago
$370
Roundtrip
found 4 days ago
Select United flight, departing Sun, Dec 27 from O'Hare Intl. to Blue Grass, returning Thu, Dec 31, priced at $370 found 4 days ago
Wed, Dec 23 - Sat, Dec 26
ORD
O'Hare Intl.
LEX
Blue Grass
$379 Roundtrip, found 1 day ago
$379
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 23 from O'Hare Intl. to Blue Grass, returning Sat, Dec 26, priced at $379 found 1 day ago
Sun, Nov 22 - Mon, Nov 23
ORD
O'Hare Intl.
LEX
Blue Grass
$387 Roundtrip, found 1 day ago
$387
Roundtrip
found 1 day ago
Select United flight, departing Sun, Nov 22 from O'Hare Intl. to Blue Grass, returning Mon, Nov 23, priced at $387 found 1 day ago

Frequently asked questions

What route does flight number UA5423 take?
UA5423 is used on a range of routes. Typically, UA5423 flies directly from BFL to DEN. If you've booked a seat on this route, you'll be in the air for 2 hours and 28 minutes.
What kind of plane is on flight number UA5423?
Chances are you'll travel aboard a Bombardier CRJ if you've booked a fare on flight number UA5423 from BFL to Denver Intl. Airport (DEN). This is the most commonly used aircraft type on this popular route.
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 UA5423 flight with Travelocity, please visit our Customer Service Portal.