Delta Flight 5123 Deals & Information (2025/2026)

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Delta Flight 5123 Route Deals From $75

The cheapest prices found with in the last 7 days for return flights were $130 and $75 for one-way flights to Jacksonville Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 6 - Wed, Sep 10
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$130 Roundtrip, found 1 day ago
$130
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 6 from John F. Kennedy Intl. to Jacksonville Intl., returning Wed, Sep 10, priced at $130 found 1 day ago
Sat, Nov 1 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$137 Roundtrip, found 1 hour ago
$137
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Nov 1 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $137 found 1 hour ago
Sat, Sep 6 - Wed, Sep 10
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$139 Roundtrip, found 1 day ago
$139
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 6 from John F. Kennedy Intl. to Jacksonville Intl., returning Wed, Sep 10, priced at $139 found 1 day ago
Sat, Nov 1 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Nov 1 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $147 found 1 hour ago
Sat, Sep 13 - Mon, Sep 22
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$159 Roundtrip, found 3 days ago
$159
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Sep 13 from John F. Kennedy Intl. to Jacksonville Intl., returning Mon, Sep 22, priced at $159 found 3 days ago
Mon, Sep 29 - Wed, Oct 1
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$165 Roundtrip, found 3 days ago
$165
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Sep 29 from John F. Kennedy Intl. to Jacksonville Intl., returning Wed, Oct 1, priced at $165 found 3 days ago
Sat, Nov 1 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$167 Roundtrip, found 1 hour ago
$167
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Nov 1 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $167 found 1 hour ago
Sat, Nov 1 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$173 Roundtrip, found 1 hour ago
$173
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Nov 1 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $173 found 1 hour ago
Sat, Sep 6 - Sun, Sep 7
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$176 Roundtrip, found 23 hours ago
$176
Roundtrip
found 23 hours ago
Select Delta flight, departing Sat, Sep 6 from John F. Kennedy Intl. to Jacksonville Intl., returning Sun, Sep 7, priced at $176 found 23 hours ago
Sat, Nov 1 - Tue, Nov 11
JFK
John F. Kennedy Intl.
JAX
Jacksonville Intl.
$187 Roundtrip, found 1 hour ago
$187
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Nov 1 from John F. Kennedy Intl. to Jacksonville Intl., returning Tue, Nov 11, priced at $187 found 1 hour 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.