Delta Flight 3678 Deals & Information (2025/2026)

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Delta Flight 3678 Route Deals From $70

The cheapest prices found with in the last 7 days for return flights were $137 and $70 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 2 - Wed, Sep 3
BOI
Boise
SEA
Seattle - Tacoma Intl.
$137 Roundtrip, found 12 hours ago
$137
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, Sep 2 from Boise to Seattle - Tacoma Intl., returning Wed, Sep 3, priced at $137 found 12 hours ago
Tue, Sep 2 - Wed, Sep 3
BOI
Boise
SEA
Seattle - Tacoma Intl.
$149 Roundtrip, found 12 hours ago
$149
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, Sep 2 from Boise to Seattle - Tacoma Intl., returning Wed, Sep 3, priced at $149 found 12 hours ago
Sat, Sep 6 - Mon, Sep 8
BOI
Boise
SEA
Seattle - Tacoma Intl.
$190 Roundtrip, found 6 hours ago
$190
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Sep 6 from Boise to Seattle - Tacoma Intl., returning Mon, Sep 8, priced at $190 found 6 hours ago
Sat, Jul 12 - Sun, Jul 13
BOI
Boise
SEA
Seattle - Tacoma Intl.
$201 Roundtrip, found 3 hours ago
$201
Roundtrip
found 3 hours ago
Select Delta flight, departing Sat, Jul 12 from Boise to Seattle - Tacoma Intl., returning Sun, Jul 13, priced at $201 found 3 hours ago

Frequently asked questions

What route does flight number DL3678 take?
DL3678 is used on multiple routes. More commonly, DL3678 flies straight from Kansas City, MO Airport (MCI-Kansas City Intl.) to MSP. If this is your route, you’ll be traveling for 1 hour and 35 minutes.
What terminal does DL3678 fly out of?
If you’re setting off from Kansas City, MO Airport (MCI-Kansas City Intl.), you’ll likely board the plane from Terminal B. The most popular route for flight number DL3678 is Kansas City Intl. Airport (MCI) to Wold–Chamberlain Field, which is a direct flight.
What kind of plane is on flight number DL3678?
Chances are you’ll be traveling aboard the Bombardier CRJ900 if you’ve reserved a ticket on flight number DL3678 from Kansas City Intl. Airport to Minneapolis, MN Airport (MSP-Minneapolis - St. Paul Intl.). This is the most commonly used aircraft 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 DL3678 flight with Travelocity, please visit our Customer Service Portal.