Delta Flight 688 Deals & Information (2025/2026)

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Delta Flight 688 Route Deals From $127

The cheapest prices found with in the last 7 days for return flights were $267 and $127 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 3 - Sat, Oct 4
JFK
John F. Kennedy Intl.
SEA
Seattle - Tacoma Intl.
$267 Roundtrip, found 20 hours ago
$267
Roundtrip
found 20 hours ago
Select Delta flight, departing Fri, Oct 3 from John F. Kennedy Intl. to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $267 found 20 hours ago
Fri, Sep 12 - Sat, Sep 20
JFK
John F. Kennedy Intl.
SEA
Seattle - Tacoma Intl.
$271 Roundtrip, found 9 hours ago
$271
Roundtrip
found 9 hours ago
Select Delta flight, departing Fri, Sep 12 from John F. Kennedy Intl. to Seattle - Tacoma Intl., returning Sat, Sep 20, priced at $271 found 9 hours ago

Frequently asked questions

What route does flight number DL688 take?
DL688 takes a number of routes. The most popular is between Hartsfield-Jackson Atlanta Intl. Airport (ATL) and Eppley Field Airport (OMA), which flies direct. This service typically takes 2 hours and 19 minutes. However, you might find other flights with the same number that have one or more stops.
How often is DL688 on time?
The most common route of Delta flight number DL688 is from Hartsfield–Jackson Atlanta International Airport to Eppley Field Airport (OMA) and takes off on schedule 75% of the time. Still, it’s good to allow a little buffer room if this is your flight number. When this trip is delayed, chances are you’ll wait about 20 minutes. This flight has a star rating of 2.2.
What terminal does DL688 fly out of?
You’ll probably board from Terminal S if you’re flying out of Hartsfield-Jackson Atlanta Intl. Airport (ATL). Flight number DL688 serves several routes, but the direct flight between Hartsfield-Jackson Atlanta Intl. Airport (ATL) and Omaha, NE Airport (OMA-Eppley Field) is the most popular.
What kind of plane is on flight number DL688?
DL688 is a flight number that serves multiple routes. If you’re traveling on the most popular route, ATL to Eppley Field Airport (OMA), you’re likely to be cruising aboard a Boeing 717-200.
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 DL688 flight with Travelocity, please visit our Customer Service Portal.