Route brief · WAS → OSL
Washington → Oslo
$644
round-trip · too little price history on this route to compare
Sep 16 – Sep 20 · 4 nights
SAS1 stop
Cached fare — the booking search re-prices live before you pay.
Destination briefOSLOsloExpensive once you land, cheap to reach — and the fjords are a train ride, not another flight.Best windowJun–AugAirportsGardermoen (OSL) · Torp (TRF)All routes into OsloWhen this route gets cheap.
Best time to be in Oslo: Jun–Aug. Fare history for this route is still thin, so we make no seasonal call yet.
The cheapest itinerary we are tracking makes one stop and takes about 9 hours outbound, on a 4-night trip — ticketed under SAS, which on a connecting fare need not operate every leg. At $644 for 6,233 km each way, that works out to about $52 per 1,000 km flown. That is above the $44 typical of long-haul fares here. Across the 10 departure cities we track at a similar distance from Oslo, this fare ranks 7th — 2.5× the $261 we hold from Chicago. That puts it in the cheaper half of the 28 routes of similar length we watch out of Washington, where the middle fare is $644. We have 1 month of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage.
The one day we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 24% higher than when tracking began on Aug 8 — $541 then versus $669 now, across 4 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 $541, on Sep 16.
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.
Route facts
- Airports
- Dulles (IAD) · Reagan National (DCA) · Baltimore (BWI) ↔ Gardermoen (OSL) · Torp (TRF)
- Flight time
- ~9 hours outbound
- Distance
- ~6,233 km each way
- Airlines on the board
- SAS
- Itineraries
- Connections on current fares
- Best months to visit
- Jun–Aug
WAS → OSL, answered.
How far in advance should I book WAS → Oslo?
We do not publish a number for this, because we cannot measure it yet.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. See /guides/what-moves-a-flight-price/ for the levers we can measure.
Are there nonstop flights from Washington to Oslo?
The current cheapest fares involve a connection, ticketed under SAS. 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 Oslo?
Lock the flight first — then compare stays for Sep 16 – Sep 20 · 4 nights.
Browse hotels ↗
Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next WAS → OSL drop reaches you as soon as we find it.
Follow WAS → OSL