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Boston → Oslo flights

The median fare for Boston to Oslo is $197, but only 7 identical snapshots underpin this figure — not enough to draw reliable booking-window conclusions.

BOS–Oslo fares locked at $197 — but treat this data cautiously

Key takeaways

  • Every single snapshot across the 7-day sample returned exactly $197 — zero price variation observed.
  • Sample size is thin: 7 data points fall well below the 30-snapshot baseline needed for confident trend analysis.
  • Spread is 0%: p25, median, and p75 are all $197, meaning there is no low-end or high-end range to quote meaningfully.
  • $197 is notably low for a transatlantic BOS–OSL itinerary if taken at face value — verify the fare includes expected fees before booking.
  • No carrier or day-of-week patterns can be inferred from this dataset given its uniformity and size.

30-day price trend

BOS → OSL · cheapest cached fare per day · last 7 days · flat
$197 low$197 high

See full numbers and stats on the BOSOSL price history page.

The full picture

The snapshot data for Boston (BOS) to Oslo (OSL) shows a median fare of $197 — but every statistical indicator, from the low and high to the 25th and 75th percentiles, lands on the exact same number. A spread of 0% across any dataset is a signal to pause before drawing conclusions. This uniformity most likely reflects a cached fare that didn't update during the 7-day collection window, a promotional or error fare captured in a narrow window, or a data pipeline issue rather than a stable, representative market price.

With only 7 samples — less than a quarter of the 30-snapshot baseline this analysis is designed around — there is simply not enough variation or volume to say anything credible about booking horizons, optimal lead times, or price trends. Transatlantic routes like BOS–OSL typically exhibit meaningful fare movement over a 6–12 week booking window, and prices across a genuine 30-day snapshot series would normally show at least some spread. The absence of that here is the most important data point in this dataset.

If you are actively shopping this route, $197 is worth investigating — it could represent a genuine promotional fare worth acting on quickly. However, cross-check it against at least two other fare aggregators before assuming it is bookable and fully inclusive of carrier-imposed fees and taxes. The honest takeaway: this data is too thin and too uniform to support booking-window guidance. Revisit once a fuller snapshot series is available.

Ready to look at fares?

Search BOSOSL on Aviasales →See the price history →

AI-authored from this route's 30-day price index. Article last regenerated May 13, 2026. Fares shift continuously — confirm at booking.

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