Delta Flight 688 Deals & Information (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Delta Flight 688 Route Deals From $122

The cheapest prices found with in the last 7 days for return flights were $237 and $122 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Mar 10 - Wed, Mar 11
JFK
John F. Kennedy Intl.
SEA
Seattle - Tacoma Intl.
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Mar 10 from John F. Kennedy Intl. to Seattle - Tacoma Intl., returning Wed, Mar 11, priced at $237 found 1 day ago
Sat, Apr 25 - Sat, May 30
JFK
John F. Kennedy Intl.
SEA
Seattle - Tacoma Intl.
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Apr 25 from John F. Kennedy Intl. to Seattle - Tacoma Intl., returning Sat, May 30, priced at $239 found 1 day ago
Sat, Apr 25 - Tue, May 26
JFK
John F. Kennedy Intl.
SEA
Seattle - Tacoma Intl.
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Apr 25 from John F. Kennedy Intl. to Seattle - Tacoma Intl., returning Tue, May 26, priced at $244 found 1 day ago
Wed, May 6 - Thu, May 14
JFK
John F. Kennedy Intl.
SEA
Seattle - Tacoma Intl.
$261 Roundtrip, found 12 hours ago
$261
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, May 6 from John F. Kennedy Intl. to Seattle - Tacoma Intl., returning Thu, May 14, priced at $261 found 12 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.