Delta Flight 378 Deals & Information (2026/2027)

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Delta Flight 378 Route Deals From $70

The cheapest prices found with in the last 7 days for return flights were $131 and $70 for one-way flights to Ronald Reagan Washington National for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Apr 18 - Mon, Apr 20
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$131 Roundtrip, found 3 days ago
$131
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Apr 18 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Mon, Apr 20, priced at $131 found 3 days ago
Tue, May 5 - Sat, May 9
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$137 Roundtrip, found 1 hour ago
$137
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, May 5 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sat, May 9, priced at $137 found 1 hour ago
Thu, Apr 23 - Mon, Apr 27
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$142 Roundtrip, found 1 day ago
$142
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 23 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Mon, Apr 27, priced at $142 found 1 day ago
Fri, Apr 17 - Mon, Apr 20
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$171 Roundtrip, found 16 hours ago
$171
Roundtrip
found 16 hours ago
Select Delta flight, departing Fri, Apr 17 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Mon, Apr 20, priced at $171 found 16 hours ago
Wed, Mar 25 - Wed, May 6
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$181 Roundtrip, found 2 hours ago
$181
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Mar 25 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Wed, May 6, priced at $181 found 2 hours ago

Frequently asked questions

What route does flight number DL378 take?
DL378 travels between Hartsfield–Jackson Atlanta International Airport and Salt Lake City Intl. Airport directly. This trip generally takes 4 hours.
How often is DL378 on time?
If you're heading off with Delta flight number DL378 from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to SLC, it's a good thing to know that 100% of these journeys touch down on time. If your plane does happen to be delayed, the average wait is approximately 8 minutes. This service has a 3.85-star rating.
What terminal does DL378 fly out of?
Passengers with seats booked on flight number DL378 from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Salt Lake City Intl. Airport (SLC) normally jet off from Terminal S.
What kind of plane is on flight number DL378?
The route for flight number DL378 is nearly always ATL to Salt Lake City, UT Airport (SLC-Salt Lake City Intl.), and the Boeing 757 is the type of plane you'll probably be flying on.
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 DL378 flight with Travelocity, please visit our Customer Service Portal.