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 $130 and $84 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 9 - Wed, Jun 11
ZRH
Zürich
LHR
Heathrow
$130 Roundtrip, found 2 days ago
$130
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Mon, Jun 9 from Zürich to Heathrow, returning Wed, Jun 11, priced at $130 found 2 days ago
Mon, Jun 23 - Wed, Jun 25
ZRH
Zürich
LHR
Heathrow
$131 Roundtrip, found 5 days ago
$131
Roundtrip
found 5 days ago
Select Swiss International Air Lines flight, departing Mon, Jun 23 from Zürich to Heathrow, returning Wed, Jun 25, priced at $131 found 5 days ago
Tue, Jun 24 - Wed, Jun 25
ZRH
Zürich
LHR
Heathrow
$162 Roundtrip, found 1 day ago
$162
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, Jun 24 from Zürich to Heathrow, returning Wed, Jun 25, priced at $162 found 1 day ago
Sat, Jun 21 - Thu, Jun 26
ZRH
Zürich
LHR
Heathrow
$162 Roundtrip, found 2 days ago
$162
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Sat, Jun 21 from Zürich to Heathrow, returning Thu, Jun 26, priced at $162 found 2 days ago
Tue, Sep 30 - Sat, Oct 4
ZRH
Zürich
LHR
Heathrow
$166 Roundtrip, found 11 hours ago
$166
Roundtrip
found 11 hours ago
Select Swiss International Air Lines flight, departing Tue, Sep 30 from Zürich to Heathrow, returning Sat, Oct 4, priced at $166 found 11 hours ago
Tue, Sep 30 - Sat, Oct 4
ZRH
Zürich
LHR
Heathrow
$172 Roundtrip, found 11 hours ago
$172
Roundtrip
found 11 hours ago
Select Swiss International Air Lines flight, departing Tue, Sep 30 from Zürich to Heathrow, returning Sat, Oct 4, priced at $172 found 11 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.