Delta Flight 5123 Deals & Information (2025/2026)

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Delta Flight 5123 Route Deals From $79

The cheapest prices found with in the last 7 days for return flights were $137 and $79 for one-way flights to Jacksonville Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 4 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $137 found 1 day ago
Tue, Nov 4 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$147 Roundtrip, found 1 day ago
$147
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $147 found 1 day ago
Tue, Nov 4 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$178 Roundtrip, found 1 day ago
$178
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $178 found 1 day ago
Sat, Aug 23 - Wed, Aug 27
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$193 Roundtrip, found 5 days ago
$193
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Aug 23 from John F. Kennedy Intl. to Jacksonville Intl., returning Wed, Aug 27, priced at $193 found 5 days ago
Tue, Nov 4 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$198 Roundtrip, found 1 day ago
$198
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $198 found 1 day ago
Tue, Nov 4 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$207 Roundtrip, found 1 day ago
$207
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 4 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $207 found 1 day ago

Frequently asked questions

What route does flight number DL5123 take?
DL5123 is used on multiple routes. Mostly, DL5123 flies direct from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to McGhee Tyson Airport (TYS). If that's your chosen flight path, you'll be airborne for approximately 58 minutes.
What terminal does DL5123 fly out of?
You'll most likely board from Terminal S if you're setting off from ATL. Flight number DL5123 serves a number of different routes, but the direct flight between ATL and Knoxville Airport is the most popular one.
What kind of plane is on flight number DL5123?
It's more than likely you'll be boarding a Bombardier CRJ900 if you're booked on flight number DL5123 from ATL to Knoxville Airport. This is the most commonly used aircraft 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 DL5123 flight with Travelocity, please visit our Customer Service Portal.