Delta Flight 378 Deals & Information (2026/2027)

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Delta Flight 378 Route Deals From $85

The cheapest prices found with in the last 7 days for return flights were $167 and $85 for one-way flights to Ronald Reagan Washington National for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 18 - Wed, Aug 19
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$167 Roundtrip, found 17 hours ago
$167
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Aug 18 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Wed, Aug 19, priced at $167 found 17 hours ago
Wed, Sep 9 - Tue, Sep 29
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$172 Roundtrip, found 1 day ago
$172
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 9 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Tue, Sep 29, priced at $172 found 1 day ago
Wed, Sep 9 - Tue, Sep 29
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 9 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Tue, Sep 29, priced at $177 found 1 day ago
Wed, Aug 12 - Sat, Aug 15
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 12 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Sat, Aug 15, priced at $189 found 1 day ago
Thu, Sep 10 - Wed, Sep 30
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$195 Roundtrip, found 1 day ago
$195
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 10 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Wed, Sep 30, priced at $195 found 1 day ago
Thu, Sep 10 - Wed, Sep 30
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 10 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Wed, Sep 30, priced at $208 found 1 day ago
Wed, Sep 9 - Tue, Sep 29
ATL
Hartsfield-Jackson Atlanta Intl.
DCA
Ronald Reagan Washington National
$212 Roundtrip, found 1 day ago
$212
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Sep 9 from Hartsfield-Jackson Atlanta Intl. to Ronald Reagan Washington National, returning Tue, Sep 29, priced at $212 found 1 day 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.