Delta Flight 1666 Deals & Information (2026/2027)

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Delta Flight 1666 Route Deals From $229

The cheapest prices found with in the last 7 days for return flights were $359 and $229 for one-way flights to Hartsfield-Jackson Atlanta Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 16 - Mon, Oct 19
MEM
Memphis Intl.
ATL
Hartsfield-Jackson Atlanta Intl.
$359 Roundtrip, found 1 hour ago
$359
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Oct 16 from Memphis Intl. to Hartsfield-Jackson Atlanta Intl., returning Mon, Oct 19, priced at $359 found 1 hour ago

Frequently asked questions

What route does flight number DL1666 take?
DL1666 flies directly between Sea-Tac Airport and BNA in about 4 hours and 28 minutes. It can sometimes be used on other routes though, some of which could be multi-stop flights. Keep an eye out for this when booking your seat to avoid any confusion.
How often is DL1666 on time?
If you're taking to the skies with Delta on flight number DL1666 from SEA to Nashville, TN Airport (BNA-Nashville Intl.), your service runs on time 93% of the time — when you have to stick to your schedule, it's comforting to know your airline does too. On the odd occasion that there is an unexpected delay, the average delay is just 58 minutes. This trip has a 2.55-star rating.
What kind of plane is on flight number DL1666?
If you've booked a seat on flight DL1666 from Seattle - Tacoma Intl. Airport (SEA) to Nashville, TN Airport (BNA-Nashville Intl.), there's a strong chance you'll be cruising aboard an Airbus A220-100. This flight number serves a number of routes, but this is the most popular.
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 DL1666 flight with Travelocity, please visit our Customer Service Portal.