Swiss International Air Lines Flight 3666 Deals & Information (2026/2027)

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Swiss International Air Lines Flight 3666 Route Deals From $283

The cheapest prices found with in the last 7 days for return flights were $262 and $283 for one-way flights to Frankfurt Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 31 - Sat, Aug 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$262 Roundtrip, found 3 hours ago
$262
Roundtrip
found 3 hours ago
Select Swiss International Air Lines flight, departing Fri, Jul 31 from Cointrin Intl. to Frankfurt Intl., returning Sat, Aug 1, priced at $262 found 3 hours ago
Fri, Jul 31 - Sat, Aug 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$282 Roundtrip, found 3 hours ago
$282
Roundtrip
found 3 hours ago
Select Swiss International Air Lines flight, departing Fri, Jul 31 from Cointrin Intl. to Frankfurt Intl., returning Sat, Aug 1, priced at $282 found 3 hours ago
Sat, Feb 28 - Sun, Mar 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$282 Roundtrip, found 1 day ago
$282
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Sat, Feb 28 from Cointrin Intl. to Frankfurt Intl., returning Sun, Mar 1, priced at $282 found 1 day ago
Fri, Jul 31 - Sat, Aug 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$302 Roundtrip, found 3 hours ago
$302
Roundtrip
found 3 hours ago
Select Swiss International Air Lines flight, departing Fri, Jul 31 from Cointrin Intl. to Frankfurt Intl., returning Sat, Aug 1, priced at $302 found 3 hours ago
Sat, Feb 28 - Sun, Mar 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$302 Roundtrip, found 1 day ago
$302
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Sat, Feb 28 from Cointrin Intl. to Frankfurt Intl., returning Sun, Mar 1, priced at $302 found 1 day ago
Sat, Feb 28 - Sun, Mar 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$312 Roundtrip, found 1 day ago
$312
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Sat, Feb 28 from Cointrin Intl. to Frankfurt Intl., returning Sun, Mar 1, priced at $312 found 1 day ago
Fri, Jul 31 - Sat, Aug 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$319 Roundtrip, found 3 hours ago
$319
Roundtrip
found 3 hours ago
Select Swiss International Air Lines flight, departing Fri, Jul 31 from Cointrin Intl. to Frankfurt Intl., returning Sat, Aug 1, priced at $319 found 3 hours ago
Sat, Feb 28 - Sun, Mar 1
GVA
Cointrin Intl.
FRA
Frankfurt Intl.
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Sat, Feb 28 from Cointrin Intl. to Frankfurt Intl., returning Sun, Mar 1, priced at $319 found 1 day ago