Delta Flight DL178 Deals & Information (2025/2026)

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Delta Flight 178 Route Deals From $516

The cheapest prices found with in the last 7 days for return flights were $388 and $516 for one-way flights to Keflavik Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Oct 5 - Mon, Oct 13
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$388 Roundtrip, found 5 hours ago
$388
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Oct 5 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Mon, Oct 13, priced at $388 found 5 hours ago
Fri, Sep 26 - Mon, Oct 6
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$393 Roundtrip, found 5 days ago
$393
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Sep 26 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Mon, Oct 6, priced at $393 found 5 days ago
Sun, Oct 5 - Thu, Oct 23
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$399 Roundtrip, found 5 hours ago
$399
Roundtrip
found 5 hours ago
Select Delta flight, departing Sun, Oct 5 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Thu, Oct 23, priced at $399 found 5 hours ago
Thu, Sep 25 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$417 Roundtrip, found 1 day ago
$417
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Sep 25 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $417 found 1 day ago