Cheap Flights from Sion (SIR) to London (SEN)

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Frequently asked questions

Is it cheaper to buy a plane ticket from SIR to Southend Airport (SEN) last minute?
When it's time to book your flights, being organized pays off. While it may be possible to pick up a last-minute deal on a SIR to Southend Airport (SEN) flight, prices usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international trips it's three to four months.
What airports do you fly into for London from Sion?
Jet off from Sion to London and land at Southend Airport (SEN). This terminal is roughly 56 kilometers east of downtown London. Kick off your urban break by visiting Big Ben and Buckingham Palace, just two of London's leading attractions.
Can I change the date of my flight from Sion Airport (SIR) to London Southend Airport?
Life can throw a spanner in your plans, so Expedia is here to help make amending your journey as easy as possible. To start, access your Sion Airport (SIR) to Southend Airport (SEN) itinerary through the Expedia Trips portal and look up the ticket conditions and rules to see if you can make changes. If you purchased your ticket in the last 24 hours, some airlines will let you cancel for free and organize new flights. If you booked your fare more than 24 hours ago, contact us through our Customer Service portal to see how we can help.

Travel information

Origin airport
Sion
Destination airport
Southend
Distance
762 km

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