How long is the flight from Portsmouth to Interlaken?

For as low as £395, British Airways can have you in Interlaken from Portsmouth in 20h 20m. The distance between Portsmouth and Interlaken is about 507 mi.

In terms of precipitation, rainfall in Interlaken ranges from 63.0 - 128.0 inches per month. June is typically the wettest month, when rainfall can reach 128.0 mm. January is typically the driest time to visit Interlaken when rainfall is around 63.0 mm.

If weather is an important factor for your trip to Interlaken, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

What are the cheapest flights from Portsmouth to Interlaken?

On average you can expect to pay £1,121 for a flight from Portsmouth to Interlaken. The cheapest flight overall is £65 while the most popular route, (Southampton Eastleigh - Zurich) is currently priced at £236.

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: Qatar Airways (82%), SWISS (82%), British Airways (81%).

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.

£107+ Flights from Portsmouth to Interlaken

Cheap flight deals from Portsmouth to Interlaken

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Interlaken
Explore the most affordable flight options available from Portsmouth to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 dezembro 2025.

sex 26/1215:55SOU - ZRH

2 stops16h 25mBritish Airways

qui 1/121:10ZRH - SOU

2 stops19h 50mBritish Airways

Deal found 16/12£1,104

Best flights from Portsmouth to Interlaken
Discover carefully curated flight deals from Portsmouth to Interlaken that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 dezembro 2025.

seg 2/312:00SOU - ZRH

2 stops20h 20mBritish Airways

qui 5/306:00ZRH - SOU

2 stops12h 30mBritish Airways

Deal found 14/12£395

qua 25/212:00SOU - ZRH

2 stops26h 30mBritish Airways

sáb 28/216:30ZRH - SOU

2 stops26h 15mBritish Airways

Deal found 16/12£446

seg 15/608:55SOU - ZRH

2 stops12h 30mBritish Airways

seg 29/621:45ZRH - SOU

2 stops18h 00mBritish Airways

Deal found 15/12£483

seg 16/308:40SOU - ZRH

2 stops12h 20mBritish Airways

seg 30/321:45ZRH - SOU

2 stops18h 00mBritish Airways

Deal found 15/12£503

dom 15/320:25SOU - ZRH

2 stops14h 55mBritish Airways

ter 31/307:15ZRH - SOU

2 stops13h 10mBritish Airways

Deal found 14/12£506

ter 17/308:40SOU - ZRH

2 stops10h 35mBritish Airways

ter 31/310:25ZRH - SOU

2 stops10h 00mBritish Airways

Deal found 16/12£509

seg 12/116:35SOU - ZRH

2 stops15h 45mBritish Airways

seg 26/106:45ZRH - SOU

2 stops10h 20mBritish Airways

Deal found 15/12£517

ter 13/108:40SOU - ZRH

2 stops12h 20mBritish Airways

ter 27/112:30ZRH - SOU

2 stops8h 30mBritish Airways

Deal found 16/12£536

Last-minute flights from Portsmouth to Interlaken
Discover last-minute flight deals from Portsmouth to Interlaken. Data last updated 17 dezembro 2025 and is based on user searches.

sex 26/1215:55SOU - ZRH

2 stops16h 25mBritish Airways

qui 1/121:10ZRH - SOU

2 stops19h 50mBritish Airways

Deal found 16/12£1,104

seg 12/116:35SOU - ZRH

2 stops15h 45mBritish Airways

seg 26/106:45ZRH - SOU

2 stops10h 20mBritish Airways

Deal found 15/12£517

ter 13/108:40SOU - ZRH

2 stops12h 20mBritish Airways

ter 27/112:30ZRH - SOU

2 stops8h 30mBritish Airways

Deal found 16/12£536

One-way flights from Portsmouth to Interlaken
Search for one-way flight options from Portsmouth to Interlaken. Find affordable one-way fares based on user searches. Data last updated 17 dezembro 2025.

sex 3/409:25SOU - ZRH

1 stop22h 15mMultiple Airlines

Deal found 16/12£107

qui 2/409:05SOU - ZRH

1 stop23h 10measyJet

Deal found 16/12£124

qua 1/417:20SOU - ZRH

1 stop14h 15mKLM

Deal found 16/12£133

qua 1/409:10SOU - ZRH

2 stops11h 00mMultiple Airlines

Deal found 16/12£183

sáb 10/117:15SOU - ZRH

2 stops39h 25mBritish Airways

Deal found 16/12£223

qui 2/408:55SOU - ZRH

3 stops9h 50mMultiple Airlines

Deal found 16/12£252

seg 22/1208:40SOU - ZRH

2 stops12h 20mBritish Airways

Deal found 16/12£452

Find flight deals from Portsmouth to Interlaken

Round-trip from	£236
One-way from	£107
Popular in	December
Cheapest in	February
Average price	£275

KLM
16/1-18/1
2 total stops
30h 00m total
Portsmouth to Interlaken

Search Deals

3/4
1 total stop
22h 15m total
Portsmouth to Interlaken

Search Deals

High demand for flights, 1% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Interlaken that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

seg 2/3

12:00-09:20

2 stops20h 20m

Zurich

qui 5/3

06:00-17:30

2 stops12h 30m

£395

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

qua 25/2

12:00-15:30

2 stops26h 30m

Zurich

sáb 28/2

16:30-17:45

2 stops26h 15m

£446

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

seg 15/6

08:55-22:25

2 stops12h 30m

Zurich

seg 29/6

21:45-14:45

2 stops18h 00m

£483

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

seg 16/3

08:40-22:00

2 stops12h 20m

Zurich

seg 30/3

21:45-14:45

2 stops18h 00m

£503

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

dom 15/3

20:25-12:20

2 stops14h 55m

Zurich

ter 31/3

07:15-19:25

2 stops13h 10m

£506

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

ter 17/3

08:40-20:15

2 stops10h 35m

Zurich

ter 31/3

10:25-19:25

2 stops10h 00m

£509

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

seg 12/1

16:35-09:20

2 stops15h 45m

Zurich

seg 26/1

06:45-16:05

2 stops10h 20m

£517

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

ter 13/1

08:40-22:00

2 stops12h 20m

Zurich

ter 27/1

12:30-20:00

2 stops8h 30m

£536

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

sex 3/4

09:25-08:40

1 stop22h 15m

£107

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

qui 2/4

09:05-09:15

1 stop23h 10m

£124

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 15 results

Best time to book a flight from Portsmouth to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Portsmouth with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Portsmouth to Interlaken?

Currently, February is the cheapest month in which you can book a flight from Portsmouth to Interlaken (average of £34). Flying from Portsmouth to Interlaken in August is currently the most expensive (average of £66). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 24% 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 Wednesday at midday 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.

Weekly flight availability from Portsmouth to Interlaken

The most flights from P0R to IN9 are scheduled on a Tuesday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Interlaken

Read through reviews of airlines operating flights from Portsmouth to Interlaken, such as KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

KLM

7.7

Good

1,430 reviews

KLM

7.7

Good

1,430 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

How long is the flight from Portsmouth to Interlaken?
For as low as £395, British Airways can have you in Interlaken from Portsmouth in 20h 20m. The distance between Portsmouth and Interlaken is about 507 mi.
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: Qatar Airways (82%), SWISS (82%), British Airways (81%).
What are the cheapest flights from Portsmouth to Interlaken?
On average you can expect to pay £1,121 for a flight from Portsmouth to Interlaken. The cheapest flight overall is £65 while the most popular route, (Southampton Eastleigh - Zurich) is currently priced at £236.
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.
What is the cheapest month to book a flight from Portsmouth to Interlaken?
Currently, February is the cheapest month in which you can book a flight from Portsmouth to Interlaken (average of £34). Flying from Portsmouth to Interlaken in August is currently the most expensive (average of £66). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portsmouth to Interlaken

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Top 10 airlines flying from Portsmouth to Interlaken

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£32	Average£86	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
easyJet	Cheapest£39	Average£113	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Jet2	Cheapest£57	Average£115	FlexibilityNo cancel fee	On-timeN/A	Search Jet2 flights
easyJet	Cheapest£65	Average£118	FlexibilityNo cancel fee	On-timeN/A	Search easyJet flights
Air Serbia	Cheapest£69	Average£71	FlexibilityNo cancel fee	On-timeN/A	Search Air Serbia flights
British Airways	Cheapest£73	Average£161	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
SWISS	Cheapest£86	Average£172	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Lufthansa	Cheapest£139	Average£211	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
KLM	Cheapest£147	Average£231	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Scandinavian Airlines	Cheapest£167	Average£282	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights

Fly with Cheapflights

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?

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

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Cheap flights from Portsmouth to Interlaken from £107

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Interlaken

Cheapest flights from Portsmouth to InterlakenExplore the most affordable flight options available from Portsmouth to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 dezembro 2025.

Explore the most affordable flight options available from Portsmouth to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 dezembro 2025.

Find flight deals from Portsmouth to Interlaken

Keep the following information in mind while searching for Portsmouth to Interlaken flight deals. Data was last updated 17 dezembro 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Interlaken that are best for you.

Best time to book a flight from Portsmouth to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Portsmouth with our price prediction graph.

Cheapflights Insights

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

What is the cheapest month to book a flight from Portsmouth to Interlaken?

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

Find hourly flight availability from Portsmouth to Interlaken. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 dezembro 2025.

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Interlaken. Price data was last updated on 13 December 2025.

Weekly flight availability from Portsmouth to Interlaken

Reviews of airlines servicing Interlaken

Read through reviews of airlines operating flights from Portsmouth to Interlaken, such as KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Interlaken. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Portsmouth to Interlaken?

What are the most reliable airlines from Portsmouth to Interlaken?

What are the cheapest flights from Portsmouth to Interlaken?

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

How can I find direct flights from Portsmouth to Interlaken?

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

What is the cheapest month to book a flight from Portsmouth to Interlaken?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portsmouth to Interlaken

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Portsmouth to Interlaken

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Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portsmouth to Interlaken?

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

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

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

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Cheapest flights from Portsmouth to Interlaken
Explore the most affordable flight options available from Portsmouth to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 dezembro 2025.