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Cheap flights from Portsmouth to Oslo from £225

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OSL
16 Mar — 23 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Oslo

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Oslo
Explore the most affordable flight options available from Portsmouth to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 February 2026.

Sat 28/317:30
SOU
-
OSL
1 stop4h 00m
KLM
Sat 4/411:50
OSL
-
SOU
1 stop21h 55m
KLM
Deal found 10/2£225
Mon 30/317:20
SOU
-
OSL
1 stop4h 15m
KLM
Mon 6/419:15
OSL
-
SOU
1 stop14h 20m
KLM
Deal found 13/2£238
Mon 30/320:40
SOU
-
OSL
2 stops35h 35m
Multiple Airlines
Mon 6/417:20
OSL
-
SOU
1 stop16h 15m
Multiple Airlines
Deal found 13/2£272
Sat 28/317:30
SOU
-
OSL
1 stop4h 00m
Multiple Airlines
Sat 4/421:25
OSL
-
SOU
2 stops12h 20m
Multiple Airlines
Deal found 10/2£281
Sun 29/317:20
SOU
-
OSL
1 stop4h 15m
KLM
Sun 5/408:55
OSL
-
SOU
2 stops24h 40m
KLM
Deal found 12/2£285
Sun 29/314:50
SOU
-
OSL
2 stops18h 40m
Multiple Airlines
Sun 5/419:40
OSL
-
SOU
2 stops14h 00m
Multiple Airlines
Deal found 12/2£332
Mon 2/312:00
SOU
-
OSL
2 stops33h 40m
British Airways
Wed 4/306:55
OSL
-
SOU
2 stops11h 35m
British Airways
Deal found 11/2£383

Find flight deals from Portsmouth to Oslo

Keep the following information in mind while searching for Portsmouth to Oslo flight deals. Data was last updated 14 February 2026.

Round-trip from

£225

Popular in

December

Cheapest in

September

Average price

£120
KLM
  • KLM
  • 28/3-4/4
  • 2 total stops
  • 25h 55m total
  • Portsmouth to Oslo
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£0 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Oslo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 February 2026.
Use the filters below to find and compare flights from Portsmouth to Oslo that are best for you.

Fly from

Portsmouth

Fly to

Oslo

Route

Depart

Return

Price

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Sat 28/3

17:30-22:30

1 stop4h 00m

Oslo Gardermoen

Sat 4/4

11:50-08:45

1 stop21h 55m

£225

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Sun 29/3

17:20-22:35

1 stop4h 15m

Oslo Gardermoen

Sun 5/4

17:25-08:35

1 stop16h 10m

£225

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Mon 30/3

17:20-22:35

1 stop4h 15m

Oslo Gardermoen

Mon 6/4

19:15-08:35

1 stop14h 20m

£238

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Mon 30/3

20:40-09:15

2 stops35h 35m

Oslo Gardermoen

Mon 6/4

17:20-08:35

1 stop16h 15m

£272

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Sat 28/3

17:30-22:30

1 stop4h 00m

Oslo Gardermoen

Sat 4/4

21:25-08:45

2 stops12h 20m

£281

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Sun 29/3

14:50-10:30

2 stops18h 40m

Oslo Gardermoen

Sun 5/4

19:40-08:40

2 stops14h 00m

£332

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Mon 2/3

12:00-22:40

2 stops33h 40m

Oslo Gardermoen

Wed 4/3

06:55-17:30

2 stops11h 35m

£383

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Mon 30/3

19:55-18:40

2 stops21h 45m

£304

Flights are sorted by cheapest return flights first.

Deals found on 13/2

Best time to book a flight from Portsmouth to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo 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 Oslo

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

Currently, March is the cheapest month in which you can book a flight from Portsmouth to Oslo (average of £14). Flying from Portsmouth to Oslo in August is currently the most expensive (average of £48). 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 OSL?

Find hourly flight availability from Portsmouth to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 February 2026.

One of the essential ways to save on airfare from Portsmouth to Oslo is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 18% on airfare.

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Oslo. Price data was last updated on 7 February 2026.

Travellers seeking maximum savings on their Portsmouth to Oslo flight should consider departing on Wednesday 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.

Weekly flight availability from Portsmouth to Oslo

Explore weekly flight availability from Portsmouth to Oslo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 February 2026.

The most flights from P0R to OS1 are scheduled on a Thursday (40 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Oslo. 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 Oslo?

    There are many flights that can get you from Portsmouth to Oslo in 4h. Fly via KLM to get the fastest option. The distance between Portsmouth and Oslo is about 800 mi.

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

    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 Oslo on time: WestJet (92%), Aeromexico (91%), Singapore Airlines (90%).

  • What are the cheapest flights from Portsmouth to Oslo?

    Looking at all options, your cheapest flight can be booked for £53. While the most popular route (Southampton Eastleigh - Oslo Gardermoen) can be booked for £238 on average, our data indicates £406 when flying from Portsmouth to Oslo.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Oslo 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 Oslo?

    Currently, March is the cheapest month in which you can book a flight from Portsmouth to Oslo (average of £14). Flying from Portsmouth to Oslo in August is currently the most expensive (average of £48). 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

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Alternative routes for Portsmouth to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
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Edinburgh to Sandefjord flights
London City to Sandefjord flights
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Gatwick to Narvik flights
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Newcastle upon Tyne to Oslo Gardermoen flights
Edinburgh to Trondheim flights
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Edinburgh to Tromsø flights
Luton to Alta flights
Stansted to Longyearbyen flights

Top 8 airlines flying from Portsmouth to Oslo

Discover the top 8 airlines that operate flights from Portsmouth to Oslo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 February 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£15Average£53FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£37Average£62FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
NorwegianCheapest£41Average£137FlexibilityNo cancel feeOn-time74%
Search Norwegian flights
Scandinavian AirlinesCheapest£72Average£221FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£74Average£127FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£112Average£261FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Brussels AirlinesCheapest£144Average£167FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest£176Average£208FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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 Oslo?

When you search for this flight from Portsmouth to Oslo, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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

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

Need flexible booking options for your flight to Oslo from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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