Delta Flight DL2123 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Delta Flight 2123 Route Deals From $165

The cheapest prices found with in the last 7 days for return flights were $273 and $165 for one-way flights to Hancock Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 19 - Tue, Aug 26
ATL
Hartsfield-Jackson Atlanta Intl.
SYR
Hancock Intl.
$273 Roundtrip, found 3 hours ago
$273
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Aug 19 from Hartsfield-Jackson Atlanta Intl. to Hancock Intl., returning Tue, Aug 26, priced at $273 found 3 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.