Delta Flight 378 Deals & Information (2026/2027)

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Delta Flight 378 Route Deals From $69

The cheapest prices found with in the last 7 days for return flights were $126 and $69 for one-way flights to Ronald Reagan Washington National for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 9 - Sat, Dec 12
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$126 Roundtrip, found 1 hour ago
$126
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Dec 9 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sat, Dec 12, priced at $126 found 1 hour ago
Thu, Dec 3 - Sun, Dec 6
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$131 Roundtrip, just found
$131
Roundtrip
just found
Select Delta flight, departing Thu, Dec 3 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sun, Dec 6, priced at $131 just found
Thu, Dec 3 - Sun, Dec 6
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Delta flight, departing Thu, Dec 3 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sun, Dec 6, priced at $137 just found
Thu, Dec 3 - Sun, Dec 6
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$151 Roundtrip, just found
$151
Roundtrip
just found
Select Delta flight, departing Thu, Dec 3 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sun, Dec 6, priced at $151 just found
Thu, Dec 3 - Sun, Dec 6
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Delta flight, departing Thu, Dec 3 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sun, Dec 6, priced at $157 just found
Fri, Feb 19 - Sun, Feb 21
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$161 Roundtrip, found 10 hours ago
$161
Roundtrip
found 10 hours ago
Select Delta flight, departing Fri, Feb 19 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sun, Feb 21, priced at $161 found 10 hours ago
Thu, Dec 3 - Sun, Dec 6
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$171 Roundtrip, just found
$171
Roundtrip
just found
Select Delta flight, departing Thu, Dec 3 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sun, Dec 6, priced at $171 just found

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.