Delta Flight DL4166 Deals & Information (2025/2026)

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Delta Flight 4166 Route Deals From $199

The cheapest prices found with in the last 7 days for return flights were $299 and $199 for one-way flights to Appleton Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 16 - Sun, Aug 31
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Aug 16 from Detroit Metropolitan Wayne County to Appleton Intl., returning Sun, Aug 31, priced at $299 found 2 days ago
Tue, Aug 19 - Sun, Aug 31
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$304 Roundtrip, found 2 days ago
$304
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Aug 19 from Detroit Metropolitan Wayne County to Appleton Intl., returning Sun, Aug 31, priced at $304 found 2 days ago
Wed, Sep 3 - Wed, Sep 10
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$314 Roundtrip, found 4 hours ago
$314
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Sep 3 from Detroit Metropolitan Wayne County to Appleton Intl., returning Wed, Sep 10, priced at $314 found 4 hours ago
Wed, Sep 10 - Sun, Sep 14
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$319 Roundtrip, found 6 days ago
$319
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Sep 10 from Detroit Metropolitan Wayne County to Appleton Intl., returning Sun, Sep 14, priced at $319 found 6 days ago
Wed, Sep 10 - Thu, Sep 18
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$343 Roundtrip, found 6 days ago
$343
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Sep 10 from Detroit Metropolitan Wayne County to Appleton Intl., returning Thu, Sep 18, priced at $343 found 6 days ago
Sat, Aug 2 - Mon, Aug 18
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$345 Roundtrip, found 2 days ago
$345
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Aug 2 from Detroit Metropolitan Wayne County to Appleton Intl., returning Mon, Aug 18, priced at $345 found 2 days ago
Fri, Sep 12 - Wed, Sep 17
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$363 Roundtrip, found 6 days ago
$363
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Sep 12 from Detroit Metropolitan Wayne County to Appleton Intl., returning Wed, Sep 17, priced at $363 found 6 days ago
Sun, Sep 14 - Fri, Sep 19
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$373 Roundtrip, found 6 days ago
$373
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Sep 14 from Detroit Metropolitan Wayne County to Appleton Intl., returning Fri, Sep 19, priced at $373 found 6 days ago
Wed, Sep 10 - Mon, Sep 15
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$379 Roundtrip, found 6 days ago
$379
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Sep 10 from Detroit Metropolitan Wayne County to Appleton Intl., returning Mon, Sep 15, priced at $379 found 6 days ago
Fri, Aug 8 - Mon, Aug 18
DTW
Detroit Metropolitan Wayne County
ATW
Appleton Intl.
$399 Roundtrip, found 2 days ago
$399
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Aug 8 from Detroit Metropolitan Wayne County to Appleton Intl., returning Mon, Aug 18, priced at $399 found 2 days ago