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 £924 for a flight from Portsmouth to Interlaken. The cheapest flight overall is £76 while the most popular route, (Southampton Eastleigh - Zurich) is currently priced at £204.

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: ANA (66%), Air Canada (64%), Cathay Pacific (64%).

What are the most popular airlines that fly from Portsmouth to Interlaken?

Before booking your flight from Portsmouth to Interlaken check out the most popular airlines for this route: British Airways, Air Serbia or KLM.

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.

£166+ Flights from Portsmouth to Interlaken

Q: How much does it cost for a return flight from Portsmouth to Interlaken?

Airfare is below average for this route at the moment. Portsmouth to Interlaken flights typically cost between £210 and £291 in October. The cheapest return flight price found within the last 3 days was £166 on Multiple Airlines (31 Oct-7 Nov).

Cheap flight deals from Portsmouth to Interlaken

Round-trip from	£166
Popular in	October
Cheapest in	February
Average price	£216

Aer Lingus
31/10-7/11
2 total stops
25h 40m total
Portsmouth to Interlaken

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£21 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Portsmouth to Interlaken

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 18 September 2025.

Fri 31/1019:50SOU - ZRH

1 stop12h 05mMultiple Airlines

Fri 7/1120:10ZRH - SOU

1 stop13h 35mMultiple Airlines

Deal found 16/9£166

Mon 20/1020:00SOU - ZRH

1 stop13h 35mMultiple Airlines

Tue 21/1021:55ZRH - SOU

2 stops22h 35mMultiple Airlines

Deal found 16/9£212

Sat 1/1115:20SOU - ZRH

2 stops15h 20mMultiple Airlines

Sat 8/1116:25ZRH - SOU

1 stop17h 20mMultiple Airlines

Deal found 17/9£232

Sat 1/1117:30SOU - ZRH

1 stop16h 30mKLM

Sat 8/1109:00ZRH - SOU

1 stop9h 00mKLM

Deal found 17/9£245

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 18 September 2025.

Fri 31/1019:50SOU - ZRH

1 stop12h 05mMultiple Airlines

Fri 7/1120:10ZRH - SOU

1 stop13h 35mMultiple Airlines

Deal found 16/9£166

Fri 16/117:30SOU - ZRH

1 stop13h 45mKLM

Sun 18/106:50ZRH - SOU

1 stop11h 25mKLM

Deal found 16/9£243

Mon 20/1020:00SOU - ZRH

1 stop13h 35mMultiple Airlines

Tue 21/1021:55ZRH - SOU

2 stops22h 35mMultiple Airlines

Deal found 16/9£212

Sat 1/1117:30SOU - ZRH

1 stop16h 30mKLM

Sat 8/1109:00ZRH - SOU

1 stop9h 00mKLM

Deal found 17/9£245

Sat 1/1115:20SOU - ZRH

2 stops15h 20mMultiple Airlines

Sat 8/1116:25ZRH - SOU

1 stop17h 20mMultiple Airlines

Deal found 17/9£232

Last-minute flights from Portsmouth to Interlaken
Discover last-minute flight deals from Portsmouth to Interlaken. Data last updated 18 September 2025 and is based on user searches.

Wed 17/912:40SOU - ZRH

2 stops8h 55mBritish Airways

Tue 7/1010:25ZRH - SOU

2 stops10h 00mBritish Airways

Deal found 16/9£596

Tue 30/916:50SOU - ZRH

2 stops15h 30mBritish Airways

Tue 7/1010:25ZRH - SOU

2 stops10h 00mBritish Airways

Deal found 16/9£537

Mon 20/1020:00SOU - ZRH

1 stop13h 35mMultiple Airlines

Tue 21/1021:55ZRH - SOU

2 stops22h 35mMultiple Airlines

Deal found 16/9£212

Thu 23/1012:40SOU - ZRH

2 stops9h 05mBritish Airways

Mon 27/1021:10ZRH - SOU

3 stops18h 00mBritish Airways

Deal found 17/9£506

Fri 31/1019:50SOU - ZRH

1 stop12h 05mMultiple Airlines

Fri 7/1120:10ZRH - SOU

1 stop13h 35mMultiple Airlines

Deal found 16/9£166

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 18 September 2025.

Wed 24/908:55SOU - ZRH

3 stops22h 55mMultiple Airlines

Deal found 17/9£268

Mon 6/1016:50SOU - ZRH

2 stops15h 40mBritish Airways

Deal found 17/9£273

Mon 5/120:50SOU - ZRH

2 stops13h 55mBritish Airways

Deal found 16/9£277

Fri 3/1008:55SOU - ZRH

2 stops10h 55mMultiple Airlines

Deal found 16/9£303

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

Fri 31/10

19:50-08:55

1 stop12h 05m

Zurich

Fri 7/11

20:10-08:45

1 stop13h 35m

£166

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Mon 20/10

20:00-10:35

1 stop13h 35m

Zurich

Tue 21/10

21:55-19:30

2 stops22h 35m

£212

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Sat 1/11

15:20-07:40

2 stops15h 20m

Zurich

Sat 8/11

16:25-08:45

1 stop17h 20m

£232

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Fri 16/1

17:30-08:15

1 stop13h 45m

Zurich

Sun 18/1

06:50-17:15

1 stop11h 25m

£243

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Sat 1/11

17:30-11:00

1 stop16h 30m

Zurich

Sat 8/11

09:00-17:00

1 stop9h 00m

£245

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Wed 24/9

08:55-08:50

3 stops22h 55m

£268

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Mon 6/10

16:50-09:30

2 stops15h 40m

£273

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Mon 5/1

20:50-11:45

2 stops13h 55m

£277

SouthamptonZurich

SOU - ZRH

SOUZRH

Southampton Eastleigh

Fri 3/10

08:55-20:50

2 stops10h 55m

£303

Flights are sorted by cheapest return flights first.

Deals found on 17/9

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, November is the cheapest month in which you can book a flight from Portsmouth to Interlaken (average of £153). Flying from Portsmouth to Interlaken in August is currently the most expensive (average of £238). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Interlaken as you normally would.

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 mornings when fares are most often at their lowest. Thursday mornings 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 Wednesday (32 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost for a return flight 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.

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,386 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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: ANA (66%), Air Canada (64%), Cathay Pacific (64%).
What are the cheapest flights from Portsmouth to Interlaken?
On average you can expect to pay £924 for a flight from Portsmouth to Interlaken. The cheapest flight overall is £76 while the most popular route, (Southampton Eastleigh - Zurich) is currently priced at £204.
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, November is the cheapest month in which you can book a flight from Portsmouth to Interlaken (average of £153). Flying from Portsmouth to Interlaken in August is currently the most expensive (average of £238). 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£80	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
easyJet	Cheapest£39	Average£110	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Jet2	Cheapest£54	Average£115	FlexibilityNo cancel fee	On-timeN/A	Search Jet2 flights
easyJet	Cheapest£64	Average£114	FlexibilityNo cancel fee	On-timeN/A	Search easyJet flights
Air Serbia	Cheapest£68	Average£70	FlexibilityNo cancel fee	On-timeN/A	Search Air Serbia flights
British Airways	Cheapest£73	Average£159	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
SWISS	Cheapest£84	Average£168	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Lufthansa	Cheapest£133	Average£202	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
KLM	Cheapest£145	Average£233	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Scandinavian Airlines	Cheapest£164	Average£277	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?

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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Cheap flights from Portsmouth to Interlaken from £166

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Interlaken

Keep the following information in mind while searching for Portsmouth to Interlaken flight deals. Data was last updated 18 September 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find 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 18 September 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 18 September 2025.

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 18 September 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 14 September 2025.

Weekly flight availability from Portsmouth to Interlaken

How much does it cost for a return flight 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.

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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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 18 September 2025.