$763 Cheap Swiss International Air Lines flights Washington (IAD) to Zakynthos (ZTH)

View $763 flight on Sun, Sep 20, 2026Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$763 Cheap Swiss International Air Lines flights Washington (IAD) to Zakynthos (ZTH)

Prices were available within the past 7 days and start at $763 for one-way flights and $1,139 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Sun, Sep 20 - Sun, Sep 27
IAD
Washington
ZTH
Zakynthos
$1,139 Roundtrip, found 8 hours ago
$1,139
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Sun, Sep 20 from Washington to Zakynthos, returning Sun, Sep 27, priced at $1,139 found 8 hours ago
Swiss International Air Lines
Sun, Sep 20 - Sun, Sep 27
IAD
Washington
ZTH
Zakynthos
$1,148 Roundtrip, found 8 hours ago
$1,148
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Sun, Sep 20 from Washington to Zakynthos, returning Sun, Sep 27, priced at $1,148 found 8 hours ago
Swiss International Air Lines
Sun, Sep 20 - Sun, Sep 27
IAD
Washington
ZTH
Zakynthos
$1,158 Roundtrip, found 8 hours ago
$1,158
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Sun, Sep 20 from Washington to Zakynthos, returning Sun, Sep 27, priced at $1,158 found 8 hours ago
Swiss International Air Lines
Sun, Sep 20 - Sun, Sep 27
IAD
Washington
ZTH
Zakynthos
$1,162 Roundtrip, found 8 hours ago
$1,162
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Sun, Sep 20 from Washington to Zakynthos, returning Sun, Sep 27, priced at $1,162 found 8 hours ago
Swiss International Air Lines
Sun, Sep 20 - Sun, Sep 27
IAD
Washington
ZTH
Zakynthos
$1,171 Roundtrip, found 8 hours ago
$1,171
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Sun, Sep 20 from Washington to Zakynthos, returning Sun, Sep 27, priced at $1,171 found 8 hours ago
Swiss International Air Lines
Sun, Sep 20 - Sun, Sep 27
IAD
Washington
ZTH
Zakynthos
$1,177 Roundtrip, found 8 hours ago
$1,177
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Sun, Sep 20 from Washington to Zakynthos, returning Sun, Sep 27, priced at $1,177 found 8 hours ago

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Zakynthos Intl.
Airlines serving
Austrian Airlines, British Airways, Swiss International Air Lines
Popular airline
Austrian Airlines
Distance
5029 mi
*Available to One Key members.