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Cheap flights from Portsmouth to Interlaken

LHR — ZRH
27 Oct — 3 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to Interlaken

Popular in

August

Cheapest in

November

Average price

£155
Highest demand for flights based on searches. 8% potential increase in price (£10 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Interlaken

What is the cheapest time of day to fly from P0R to IN9?

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Interlaken in the morning. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Portsmouth to Interlaken?

Travellers seeking maximum savings on their Portsmouth to Interlaken flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

  • What are the most reliable airlines from Portsmouth to Interlaken?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portsmouth to Interlaken on time: Helvetic Airways (100%), Qatar Airways (78%), British Airways (75%).

  • What are the cheapest flights from Portsmouth to Interlaken?

    On average you can expect to pay £1,154 for a flight from Portsmouth to Interlaken. The cheapest flight overall is £79 while the most popular route, (Southampton Eastleigh - Zurich) is currently priced at £470.

  • Can I find deals for flights from Portsmouth to Interlaken that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Interlaken flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Interlaken?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Interlaken.

  • Can I find deals for business class flights from Portsmouth to Interlaken?

    Yes. Cheapflights offers flight deals from Portsmouth to Interlaken by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Portsmouth to Interlaken

AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£35Average£111FlexibilityNo cancel feeOn-time86%
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RyanairCheapest£38Average£98FlexibilityNo cancel feeOn-timeN/A
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Jet2Cheapest£58Average£119FlexibilityNo cancel feeOn-timeN/A
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British AirwaysCheapest£71Average£172FlexibilityNo cancel feeOn-time70%
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KLMCheapest£86Average£267FlexibilityNo cancel feeOn-time75%
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SWISSCheapest£90Average£208FlexibilityNo cancel feeOn-time79%
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LufthansaCheapest£134Average£179FlexibilityNo cancel feeOn-time76%
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How does Cheapflights help users find flights from Portsmouth to Interlaken?

Cheapflights makes it easy to find Portsmouth to Interlaken flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Interlaken?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portsmouth to Interlaken for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Portsmouth to Interlaken with no change fees?

Yes, we can. To see specific flights from Portsmouth to Interlaken with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portsmouth to Interlaken become cheaper?

Yes! Start tracking prices for Portsmouth to Interlaken flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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