Swiss International Air Lines Flight 340 Deals & Information (2025/2026)

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Swiss International Air Lines Flight 340 Route Deals From $84

The cheapest prices found with in the last 7 days for return flights were $131 and $84 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 27 - Sun, Nov 2
ZRH
Zürich
LHR
Heathrow
$131 Roundtrip, found 3 hours ago
$131
Roundtrip
found 3 hours ago
Select Swiss International Air Lines flight, departing Mon, Oct 27 from Zürich to Heathrow, returning Sun, Nov 2, priced at $131 found 3 hours ago
Sun, Jun 15 - Mon, Jun 30
ZRH
Zürich
LHR
Heathrow
$161 Roundtrip, found 1 hour ago
$161
Roundtrip
found 1 hour ago
Select Swiss International Air Lines flight, departing Sun, Jun 15 from Zürich to Heathrow, returning Mon, Jun 30, priced at $161 found 1 hour ago
Thu, Nov 6 - Wed, Nov 12
ZRH
Zürich
LHR
Heathrow
$165 Roundtrip, found 2 days ago
$165
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Thu, Nov 6 from Zürich to Heathrow, returning Wed, Nov 12, priced at $165 found 2 days ago
Wed, Sep 3 - Sat, Sep 6
ZRH
Zürich
LHR
Heathrow
$172 Roundtrip, found 9 hours ago
$172
Roundtrip
found 9 hours ago
Select Swiss International Air Lines flight, departing Wed, Sep 3 from Zürich to Heathrow, returning Sat, Sep 6, priced at $172 found 9 hours ago
Tue, Oct 14 - Fri, Oct 17
ZRH
Zürich
LHR
Heathrow
$178 Roundtrip, found 1 day ago
$178
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, Oct 14 from Zürich to Heathrow, returning Fri, Oct 17, priced at $178 found 1 day ago
Tue, Oct 14 - Fri, Oct 17
ZRH
Zürich
LHR
Heathrow
$184 Roundtrip, found 1 day ago
$184
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, Oct 14 from Zürich to Heathrow, returning Fri, Oct 17, priced at $184 found 1 day ago
Mon, Oct 27 - Sun, Nov 2
ZRH
Zürich
LHR
Heathrow
$192 Roundtrip, found 3 hours ago
$192
Roundtrip
found 3 hours ago
Select Swiss International Air Lines flight, departing Mon, Oct 27 from Zürich to Heathrow, returning Sun, Nov 2, priced at $192 found 3 hours ago

Frequently asked questions

What route does flight number LX340 take?
LX340 operates non-stop from ZRH to London Airport (LHR-Heathrow). During this journey, you can expect to be in the air for roughly 1 hour and 45 minutes. Book ahead to get your preferred seat.
What kind of plane is on flight number LX340?
The route for flight number LX340 is predominantly ZRH to London Airport (LHR-Heathrow), and the Airbus A220-300 is the type of plane you’ll probably be jetting off with.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your LX340 flight with Travelocity, please visit our Customer Service Portal.