Delta Flight DL821 Deals & Information (2025/2026)

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Delta Flight 821 Route Deals From $181

The cheapest prices found with in the last 7 days for return flights were $167 and $181 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 8 - Wed, Jul 16
ATL
Hartsfield-Jackson Atlanta Intl.
BOS
Logan Intl.
$167 Roundtrip, found 1 day ago
$167
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jul 8 from Hartsfield-Jackson Atlanta Intl. to Logan Intl., returning Wed, Jul 16, priced at $167 found 1 day ago

Frequently asked questions

What route does flight number DL821 take?
DL821 travels between Hartsfield-Jackson Atlanta Intl. Airport (ATL) and San Francisco Airport directly. This service takes 5 hours and 9 minutes.
What terminal does DL821 fly out of?
DL821 runs between Atlanta, GA Airport (ATL-Hartsfield-Jackson Atlanta Intl.) and SFO, and passengers with a seat on this flight usually board the plane from Terminal S.
What kind of plane is on flight number DL821?
Get ready to jump on board an Airbus A321 if you’ve booked a seat on flight DL821. The majority of flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to SFO use this aircraft model.
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 DL821 flight with Travelocity, please visit our Customer Service Portal.