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Cheap flights from Belfast Intl Airport to Oslo from £133

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — OSL
20 Jul — 27 Jul1
1 adult

Cheap flight deals from Belfast Intl to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Oslo (OS1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 July 2025.

Round-trip from

£133

Popular in

June

Cheapest in

May

Average price

£305
Ryanair
  • Ryanair
  • 27/8-3/9
  • 2 total stops
  • 23h 15m total
  • Belfast to Oslo
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£36 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Belfast Intl to Oslo

Cheapest flights from Belfast Intl to Oslo
Explore the most affordable flight options available from Belfast Intl to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Wed 27/822:05BFS - OSL
1 stop11h 35mRyanair
Wed 3/922:20OSL - BFS
1 stop11h 40mRyanair
Deal found 13/7£133
Thu 28/808:50BFS - OSL
1 stop7h 50mMultiple Airlines
Thu 4/911:05OSL - BFS
1 stop11h 55mMultiple Airlines
Deal found 14/7£135
Mon 11/810:55BFS - TRF
1 stop20h 15mMultiple Airlines
Mon 18/815:35TRF - BFS
1 stop6h 55mMultiple Airlines
Deal found 14/7£182

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast Intl 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 July 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Oslo that are best for you.

Fly from

Belfast Intl

Fly to

Oslo

Route

Depart

Return

Price

BelfastOslo

BFS - OSL

BFSOSL

Belfast Intl

Wed 27/8

22:05-10:40

1 stop11h 35m

Oslo Gardermoen

Wed 3/9

22:20-09:00

1 stop11h 40m

£133

BelfastOslo

BFS - OSL

BFSOSL

Belfast Intl

Thu 28/8

08:50-17:40

1 stop7h 50m

Oslo Gardermoen

Thu 4/9

11:05-22:00

1 stop11h 55m

£135

BelfastOslo

BFS - TRF

BFSTRF

Belfast Intl

Mon 11/8

10:55-08:10

1 stop20h 15m

Oslo Sandefjord

Mon 18/8

15:35-21:30

1 stop6h 55m

£182

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Best time to book a flight from Belfast Intl to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo from Belfast Intl 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 Belfast Intl Airport to Oslo

What is the cheapest month to book a flight from Belfast Intl Airport to Oslo?

Currently, May is the cheapest month in which you can book a flight from Belfast Intl Airport to Oslo (average of £103). Flying from Belfast Intl Airport to Oslo in July is currently the most expensive (average of £187). 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.

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 July 2025.
Read through reviews of airlines operating flights from Belfast Intl Airport to Oslo, such as Ryanair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.1
Okay
Check prices

Boarding

6.0

Entertainment

5.3

Crew

6.9

Overall

6.1

Comfort

6.0

Food

5.7

Reviews

1 / 5
2.0
Mediocre

Tristan,Jul 2024

STN - EDI

Delayed again called for boarding when they didn’t even have an aircraft at the gate
Ryanair
6.1
Okay
Ryanair
6.1
Okay
Check prices

Boarding

6.0

Entertainment

5.3

Crew

6.9

Overall

6.1

Comfort

6.0

Food

5.7

Reviews

1 / 5
2.0
Mediocre

Tristan,Jul 2024

STN - EDI

Delayed again called for boarding when they didn’t even have an aircraft at the gate

Related info for your journey

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

  • What is the cheapest airline to fly from Belfast Intl Airport to Oslo round-trip?

    Flying on Ryanair is currently your cheapest option to Oslo, with prices starting at £133. This flight start at 32% lower than the current average price 3 months from now.

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

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

  • How can I find direct flights from Belfast Intl to Oslo?

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl 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 Belfast Intl Airport to Oslo?

    Currently, May is the cheapest month in which you can book a flight from Belfast Intl Airport to Oslo (average of £103). Flying from Belfast Intl Airport to Oslo in July is currently the most expensive (average of £187). 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 Belfast Intl to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Oslo Gardermoen flights
Belfast City to Oslo Gardermoen flights
Belfast Intl to Bergen flights
Belfast City to Bergen flights

Top airline flying from Belfast Intl to Oslo

Discover the top airline that operate flights from Belfast Intl 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 July 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£151Average£186FlexibilityNo cancel feeOn-time75%
Search KLM 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 Belfast Intl to Oslo?

Deals for Belfast Intl to Oslo flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Belfast Intl to Oslo by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast Intl to Oslo, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Oslo from Belfast Intl today and book when prices fit your budget.

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