Delta Flight DL2123 Deals & Information (2025/2026)

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Delta Flight 2123 Route Deals From $197

The cheapest prices found with in the last 7 days for return flights were $355 and $197 for one-way flights to Hancock Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 3 - Thu, Jul 24
ATL
Hartsfield-Jackson Atlanta Intl.
SYR
Hancock Intl.
$355 Roundtrip, found 6 hours ago
$355
Roundtrip
found 6 hours ago
Select Delta flight, departing Thu, Jul 3 from Hartsfield-Jackson Atlanta Intl. to Hancock Intl., returning Thu, Jul 24, priced at $355 found 6 hours ago

Frequently asked questions

What route does flight number DL2123 take?
DL2123 is used on a range of routes. Most often, DL2123 flies directly from ATL to Sea-Tac Airport. If that’s your chosen flight path, you’ll be airborne for about 5 hours and 13 minutes.
How often is DL2123 on time?
Delta flight number DL2123 from ATL to Seattle - Tacoma Intl. Airport (SEA) touches down according to schedule 95% of the time, which means you can breathe easy knowing that you will reach your destination ASAP. On the odd occasion that it is behind schedule, the average delay time is 17 minutes. This flight has a 4.4-star rating.
What terminal does DL2123 fly out of?
Terminal S is where you’ll most likely depart from if you’re booked on a flight leaving from Hartsfield–Jackson Atlanta International Airport. ATL to SEA is the most popular route for flight number DL2123.
What kind of plane is on flight number DL2123?
If you’ve booked a seat on flight DL2123 from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to SEA, you’re likely to be heading off on the Boeing 737-900. This flight number serves several routes, but this is the busiest.
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 DL2123 flight with Travelocity, please visit our Customer Service Portal.