Delta Flight 878 Deals & Information (2026/2027)

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Frequently asked questions

What route does flight number DL878 take?
DL878 flies directly from Sea-Tac Airport to ATL in 4 hours and 52 minutes. It can sometimes take other routes though, some of which could be multi-stop journeys. Keep this in mind when booking your seat to avoid any mix-ups.
What kind of plane is on flight number DL878?
It's likely you'll be boarding the Boeing 757 if you've booked a fare on flight number DL878 from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to Hartsfield–Jackson Atlanta International Airport. It's the most commonly used aircraft type on this particular route.
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 DL878 flight with Travelocity, please visit our Customer Service Portal.