Delta Flight 178 Deals & Information (2025/2026)

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Delta Flight 178 Route Deals From $426

The cheapest prices found with in the last 7 days for return flights were $388 and $426 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 2 days ago
$388
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Oct 5 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Mon, Oct 13, priced at $388 found 2 days ago
Sun, Oct 5 - Thu, Oct 23
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$399 Roundtrip, found 3 days ago
$399
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Oct 5 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Thu, Oct 23, priced at $399 found 3 days ago
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$412 Roundtrip, found 11 hours ago
$412
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 21 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $412 found 11 hours ago
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$416 Roundtrip, found 11 hours ago
$416
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 21 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $416 found 11 hours ago
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$417 Roundtrip, found 11 hours ago
$417
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 21 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $417 found 11 hours ago
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$422 Roundtrip, found 11 hours ago
$422
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 21 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $422 found 11 hours ago
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$426 Roundtrip, found 11 hours ago
$426
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 21 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $426 found 11 hours ago
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$427 Roundtrip, found 11 hours ago
$427
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 21 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $427 found 11 hours ago
Sun, Sep 21 - Tue, Sep 30
DTW
Detroit Metropolitan Wayne County
KEF
Keflavik Intl.
$448 Roundtrip, found 11 hours ago
$448
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 21 from Detroit Metropolitan Wayne County to Keflavik Intl., returning Tue, Sep 30, priced at $448 found 11 hours ago