Cheap Flights From Seattle - Tacoma Intl. (SEA) To Kos Island Intl. (KGS)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from Seattle (SEA) to Kos (KGS)

The cheapest flights to Kos Island Intl. found within the past 7 days were CA $2,014 round trip and one way. Prices and availability subject to change. Additional terms may apply.

Mon., 9 Dec. - Mon., 16 Dec.
SEA
Seattle
KGS
Kos
CA $2,014 Roundtrip, found 18 hours ago
CA $2,014
Roundtrip
found 18 hours ago
Select Delta flight, departing Mon., 9 Dec. from Seattle to Kos, returning Mon., 16 Dec., priced at CA $2,014 found 18 hours ago
Mon., 9 Dec. - Wed., 18 Dec.
SEA
Seattle
KGS
Kos
CA $2,141 Roundtrip, found 18 hours ago
CA $2,141
Roundtrip
found 18 hours ago
Select Delta flight, departing Mon., 9 Dec. from Seattle to Kos, returning Wed., 18 Dec., priced at CA $2,141 found 18 hours ago
Mon., 9 Dec. - Sun., 15 Dec.
SEA
Seattle
KGS
Kos
CA $2,235 Roundtrip, found 18 hours ago
CA $2,235
Roundtrip
found 18 hours ago
Select Delta flight, departing Mon., 9 Dec. from Seattle to Kos, returning Sun., 15 Dec., priced at CA $2,235 found 18 hours ago
Tue., 10 Dec. - Mon., 16 Dec.
SEA
Seattle
KGS
Kos
CA $2,274 Roundtrip, found 18 hours ago
CA $2,274
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue., 10 Dec. from Seattle to Kos, returning Mon., 16 Dec., priced at CA $2,274 found 18 hours ago
Tue., 10 Dec. - Wed., 18 Dec.
SEA
Seattle
KGS
Kos
CA $2,394 Roundtrip, found 18 hours ago
CA $2,394
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue., 10 Dec. from Seattle to Kos, returning Wed., 18 Dec., priced at CA $2,394 found 18 hours ago
Mon., 9 Dec. - Tue., 17 Dec.
SEA
Seattle
KGS
Kos
CA $2,413 Roundtrip, found 18 hours ago
CA $2,413
Roundtrip
found 18 hours ago
Select Delta flight, departing Mon., 9 Dec. from Seattle to Kos, returning Tue., 17 Dec., priced at CA $2,413 found 18 hours ago
Tue., 10 Dec. - Sun., 15 Dec.
SEA
Seattle
KGS
Kos
CA $2,495 Roundtrip, found 18 hours ago
CA $2,495
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue., 10 Dec. from Seattle to Kos, returning Sun., 15 Dec., priced at CA $2,495 found 18 hours ago
Mon., 9 Dec. - Wed., 11 Dec.
SEA
Seattle
KGS
Kos
CA $2,529 Roundtrip, found 18 hours ago
CA $2,529
Roundtrip
found 18 hours ago
Select Delta flight, departing Mon., 9 Dec. from Seattle to Kos, returning Wed., 11 Dec., priced at CA $2,529 found 18 hours ago
Mon., 9 Dec. - Thu., 12 Dec.
SEA
Seattle
KGS
Kos
CA $2,534 Roundtrip, found 18 hours ago
CA $2,534
Roundtrip
found 18 hours ago
Select Delta flight, departing Mon., 9 Dec. from Seattle to Kos, returning Thu., 12 Dec., priced at CA $2,534 found 18 hours ago
Tue., 10 Dec. - Thu., 12 Dec.
SEA
Seattle
KGS
Kos
CA $2,570 Roundtrip, found 18 hours ago
CA $2,570
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue., 10 Dec. from Seattle to Kos, returning Thu., 12 Dec., priced at CA $2,570 found 18 hours ago
Mon., 9 Dec. - Fri., 13 Dec.
SEA
Seattle
KGS
Kos
CA $2,599 Roundtrip, found 18 hours ago
CA $2,599
Roundtrip
found 18 hours ago
Select Delta flight, departing Mon., 9 Dec. from Seattle to Kos, returning Fri., 13 Dec., priced at CA $2,599 found 18 hours ago
Tue., 10 Dec. - Fri., 13 Dec.
SEA
Seattle
KGS
Kos
CA $2,635 Roundtrip, found 18 hours ago
CA $2,635
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue., 10 Dec. from Seattle to Kos, returning Fri., 13 Dec., priced at CA $2,635 found 18 hours ago
Tue., 10 Dec. - Tue., 17 Dec.
SEA
Seattle
KGS
Kos
CA $2,683 Roundtrip, found 18 hours ago
CA $2,683
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue., 10 Dec. from Seattle to Kos, returning Tue., 17 Dec., priced at CA $2,683 found 18 hours ago
Thu., 5 Dec. - Mon., 9 Dec.
SEA
Seattle
KGS
Kos
CA $3,037 Roundtrip, found 18 hours ago
CA $3,037
Roundtrip
found 18 hours ago
Select Delta flight, departing Thu., 5 Dec. from Seattle to Kos, returning Mon., 9 Dec., priced at CA $3,037 found 18 hours ago
Thu., 5 Dec. - Wed., 11 Dec.
SEA
Seattle
KGS
Kos
CA $3,048 Roundtrip, found 18 hours ago
CA $3,048
Roundtrip
found 18 hours ago
Select Delta flight, departing Thu., 5 Dec. from Seattle to Kos, returning Wed., 11 Dec., priced at CA $3,048 found 18 hours ago
Sun., 8 Dec. - Tue., 17 Dec.
SEA
Seattle
KGS
Kos
CA $3,071 Roundtrip, found 18 hours ago
CA $3,071
Roundtrip
found 18 hours ago
Select KLM flight, departing Sun., 8 Dec. from Seattle to Kos, returning Tue., 17 Dec., priced at CA $3,071 found 18 hours ago
Thu., 5 Dec. - Tue., 17 Dec.
SEA
Seattle
KGS
Kos
CA $3,101 Roundtrip, found 18 hours ago
CA $3,101
Roundtrip
found 18 hours ago
Select Air France flight, departing Thu., 5 Dec. from Seattle to Kos, returning Tue., 17 Dec., priced at CA $3,101 found 18 hours ago
Thu., 5 Dec. - Sun., 8 Dec.
SEA
Seattle
KGS
Kos
CA $3,106 Roundtrip, found 18 hours ago
CA $3,106
Roundtrip
found 18 hours ago
Select Delta flight, departing Thu., 5 Dec. from Seattle to Kos, returning Sun., 8 Dec., priced at CA $3,106 found 18 hours ago
Thu., 5 Dec. - Thu., 12 Dec.
SEA
Seattle
KGS
Kos
CA $3,112 Roundtrip, found 18 hours ago
CA $3,112
Roundtrip
found 18 hours ago
Select Air France flight, departing Thu., 5 Dec. from Seattle to Kos, returning Thu., 12 Dec., priced at CA $3,112 found 18 hours ago
Sun., 8 Dec. - Sat., 14 Dec.
SEA
Seattle
KGS
Kos
CA $3,116 Roundtrip, found 18 hours ago
CA $3,116
Roundtrip
found 18 hours ago
Select KLM flight, departing Sun., 8 Dec. from Seattle to Kos, returning Sat., 14 Dec., priced at CA $3,116 found 18 hours ago
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.