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Cheap flights from Portsmouth to Oslo from £175

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OSL
15 May — 22 May1
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 15 April 2026.

Mon 1/612:55
SOU
-
OSL
2 stops20h 15m
Multiple Airlines
Fri 12/610:20
OSL
-
SOU
2 stops26h 25m
Multiple Airlines
Deal found 14/4£175
Thu 28/517:20
SOU
-
TRF
2 stops19h 05m
Multiple Airlines
Wed 3/620:20
TRF
-
SOU
2 stops24h 10m
Multiple Airlines
Deal found 11/4£181
Mon 1/620:40
SOU
-
TRF
2 stops22h 50m
Multiple Airlines
Fri 12/615:20
TRF
-
SOU
2 stops21h 25m
Multiple Airlines
Deal found 14/4£184
Thu 28/508:55
SOU
-
OSL
2 stops24h 00m
Multiple Airlines
Wed 3/608:25
OSL
-
SOU
1 stop7h 35m
Multiple Airlines
Deal found 11/4£196
Wed 13/508:55
SOU
-
TRF
2 stops10h 00m
Multiple Airlines
Wed 20/520:20
TRF
-
SOU
2 stops24h 10m
Multiple Airlines
Deal found 15/4£197
Mon 1/619:20
SOU
-
TRF
2 stops21h 30m
Multiple Airlines
Sun 14/621:40
TRF
-
SOU
2 stops15h 10m
Multiple Airlines
Deal found 12/4£198
Wed 27/509:20
SOU
-
OSL
2 stops23h 50m
Multiple Airlines
Wed 3/610:35
OSL
-
SOU
2 stops23h 00m
Multiple Airlines
Deal found 12/4£198
Mon 1/612:55
SOU
-
OSL
2 stops20h 15m
Multiple Airlines
Sun 14/609:25
OSL
-
SOU
2 stops27h 25m
Multiple Airlines
Deal found 12/4£201
Thu 28/517:20
SOU
-
OSL
1 stop4h 15m
KLM
Wed 3/611:50
OSL
-
SOU
1 stop6h 00m
KLM
Deal found 11/4£207
Fri 29/517:20
SOU
-
OSL
1 stop4h 15m
KLM
Sun 31/519:15
OSL
-
SOU
1 stop14h 20m
KLM
Deal found 14/4£211
Fri 29/517:20
SOU
-
TRF
2 stops14h 20m
Multiple Airlines
Sun 31/521:40
TRF
-
SOU
2 stops15h 10m
Multiple Airlines
Deal found 14/4£213
Fri 29/509:25
SOU
-
OSL
2 stops21h 25m
Multiple Airlines
Fri 5/610:20
OSL
-
SOU
2 stops26h 25m
Multiple Airlines
Deal found 14/4£217

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 15 April 2026.

Round-trip from

£175

Popular in

December

Cheapest in

September

Average price

£92
1/6-12/6
  • 1/6-12/6
  • 4 total stops
  • 46h 40m total
  • Portsmouth to Oslo
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 15 April 2026.
Use the filters below to find and compare flights from Portsmouth to Oslo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonOslo

SOU - TRF

SOUTRF

Southampton Eastleigh

Thu 28/5

17:20-13:25

2 stops19h 05m

Oslo Sandefjord

Wed 3/6

20:20-19:30

2 stops24h 10m

£181

SouthamptonOslo

SOU - TRF

SOUTRF

Southampton Eastleigh

Mon 1/6

20:40-20:30

2 stops22h 50m

Oslo Sandefjord

Fri 12/6

15:20-11:45

2 stops21h 25m

£184

SouthamptonOslo

SOU - TRF

SOUTRF

Southampton Eastleigh

Wed 13/5

08:55-19:55

2 stops10h 00m

Oslo Sandefjord

Wed 20/5

20:20-19:30

2 stops24h 10m

£197

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Wed 27/5

09:20-10:10

2 stops23h 50m

Oslo Gardermoen

Wed 3/6

10:35-08:35

2 stops23h 00m

£198
Fastest return journey

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Thu 28/5

17:20-22:35

1 stop4h 15m

Oslo Gardermoen

Wed 3/6

11:50-16:50

1 stop6h 00m

£207

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Mon 1/6

19:20-11:05

2 stops14h 45m

Oslo Gardermoen

Fri 12/6

19:20-19:30

1 stop25h 10m

£212

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Mon 1/6

12:55-10:10

2 stops20h 15m

Oslo Gardermoen

Sun 14/6

10:40-11:50

3 stops26h 10m

£215

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Fri 29/5

17:20-08:40

1 stop14h 20m

Oslo Gardermoen

Fri 5/6

19:15-08:45

1 stop14h 30m

£218

SouthamptonOslo

SOU - TRF

SOUTRF

Southampton Eastleigh

Mon 1/6

19:20-17:50

2 stops21h 30m

Oslo Sandefjord

Sun 14/6

21:40-17:40

1 stop21h 00m

£219

SouthamptonOslo

SOU - OSL

SOUOSL

Southampton Eastleigh

Wed 13/5

17:20-08:45

1 stop14h 25m

Oslo Gardermoen

Wed 20/5

17:20-08:35

1 stop16h 15m

£228

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 17 resultsSorted by cheapest first
1
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, September is the cheapest month in which you can book a flight from Portsmouth to Oslo (average of £20). Flying from Portsmouth to Oslo in August is currently the most expensive (average of £44). 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 15 April 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 evening 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 11 April 2026.

Travellers seeking maximum savings on their Portsmouth to Oslo flight should consider departing on Thursday at midday when fares are most often at their lowest. Monday 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 15 April 2026.

The most flights from P0R to OS1 are scheduled on a Monday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Oslo

Get insights into the airlines that provide service to Oslo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oslo. Reviews last updated 15 April 2026.
Get a feel of what it's like to fly with KLM from Portsmouth to Oslo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,499 reviews
Check prices

Comfort

7.7

Crew

8.4

Entertainment

7.2

Overall

7.8

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,499 reviews
KLM
7.8
Good
1,499 reviews
Check prices

Comfort

7.7

Crew

8.4

Entertainment

7.2

Overall

7.8

Food

7.3

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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 15m. 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: LATAM Airlines (96%), Thai Lion Air (93%), Finnair (90%).

  • What are the cheapest flights from Portsmouth to Oslo?

    Looking at all options, your cheapest flight can be booked for £63. While the most popular route (Southampton Eastleigh - Oslo Gardermoen) can be booked for £175 on average, our data indicates £283 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, September is the cheapest month in which you can book a flight from Portsmouth to Oslo (average of £20). Flying from Portsmouth to Oslo in August is currently the most expensive (average of £44). 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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Newcastle upon Tyne to Sandefjord flights

Top 7 airlines flying from Portsmouth to Oslo

Discover the top 7 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 15 April 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£15Average£66FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£38Average£62FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
NorwegianCheapest£41Average£141FlexibilityNo cancel feeOn-time74%
Search Norwegian flights
Scandinavian AirlinesCheapest£74Average£226FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£78Average£131FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£157Average£180FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
KLMCheapest£186Average£282FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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?

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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.

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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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