Route brief · OSL → BCN
Oslo → Barcelona
$122
−13% vs typical
seasonal median $140 · difference $18
Dec 14 – Dec 19 · 5 nights
Buzz1 stop
- Usual monthly lows
- $127–$152
- Board rank
- Stronger than 31%
- Route sample
- 6 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefBCNBarcelonaGaudí’s fever dream with a beach attached. One of the cheapest big-city landings in Europe.Best windowMay–Jun · Sep–OctAirportsEl Prat (BCN)All routes into BarcelonaWhen this route gets cheap.
Cached-fare history: across 6 months, Dec is the cheapest for OSL → BCN. Best time to be there: May–Jun · Sep–Oct.
Fares bottom out in December around $122 and peak in September near $178 — a $56 spread across the 6 months we track. The cheapest itinerary we are tracking makes one stop and takes about 4.5 hours outbound, on a 5-night trip — ticketed under Buzz, which on a connecting fare need not operate every leg. At $122 for 2,143 km each way, that works out to about $28 per 1,000 km flown. That is well under the $41 that short-haul fares on this board typically run. Across the 5 departure cities we track at a similar distance from Barcelona, this fare ranks 4th — 1.6× the $74 we hold from Stockholm. That puts it in the cheaper half of the 14 routes of similar length we watch out of Oslo, where the middle fare is $148.
The 7 days we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 28% higher than when tracking began on Aug 8 — $141 then versus $180 now, across 7 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $105, on Oct 10.
- Fri, Sep 4$228
- Mon, Sep 7$210
- Fri, Sep 18$189
- Sun, Sep 20$180
- Mon, Sep 21$175
- Mon, Nov 2$146
- Thu, Nov 12$127
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cheapest in Dec · around $122
13% below the $140 typical fare
Cheapest round-trip fare found per month · Oslo → Barcelona · cached-price history
Route facts
- Airports
- Gardermoen (OSL) · Torp (TRF) ↔ El Prat (BCN)
- Flight time
- ~4.5 hours outbound
- Distance
- ~2,143 km each way
- Typical price
- $140 round-trip (seasonal median)
- Airlines on the board
- Buzz
- Itineraries
- Connections on current fares
- Best months to visit
- May–Jun · Sep–Oct
OSL → BCN, answered.
Is $122 a good price for Oslo to Barcelona?
Only slightly. The seasonal median is around $140 round-trip and this fare is 13% under it, about $18. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from Oslo to Barcelona?
Across 6 months of cached-fare history, Dec comes out cheapest on this route. The best months to actually be in Barcelona are May–Jun · Sep–Oct — when those overlap, that's your window.
How far in advance should I book OSL → Barcelona?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 6 months of cached fares, Dec comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from Oslo to Barcelona?
The current cheapest fares involve a connection, ticketed under Buzz. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Barcelona?
Lock the flight first — then compare stays for Dec 14 – Dec 19 · 5 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next OSL → BCN drop reaches you as soon as we find it.
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