Cheap Flights from Seattle to Trondheim
Compare cheap flights from Seattle 🇺🇸 to Trondheim 🇳🇴. Real prices, daily refreshed from Aviasales.
Live price data temporarily unavailable for this route. Search current fares directly →
| Currency | NOK |
| Language | Norwegian |
| Power plug | Type C/F |
| Tipping | included |
| Emergency | 112 |
🏨 Search Hotels in Trondheim — Compare 100+ booking sites
🚗 Rent a Car in Trondheim — 800+ rental brands worldwide
🚙 Local Car Rental — Owner-operated fleets
🎧 Self-Guided Audio Tours of Trondheim
🎫 Skip-the-Line Tickets
🚕 Airport Transfer
🛡️ Travel Insurance from $4/day
📱 Get an eSIM (code FALLY20)
✈️ Flight Delayed? Claim up to €600
Seattle → Barcelona Seattle → Madrid Seattle → Malaga Seattle → Valencia Seattle → Seville Seattle → Ibiza Seattle → Mallorca Seattle → Tenerife Seattle → Gran Canaria Seattle → Lanzarote Seattle → Bilbao Seattle → Granada Seattle → Lisbon Seattle → Porto Seattle → Faro Seattle → Madeira Seattle → Rome Seattle → Milan Seattle → Venice Seattle → Florence Seattle → Naples Seattle → Palermo Seattle → Catania Seattle → Bologna Seattle → Bari Seattle → Verona Seattle → Pisa Seattle → Sardinia Seattle → Paris Seattle → Nice
London → Trondheim Paris → Trondheim Amsterdam → Trondheim Brussels → Trondheim Frankfurt → Trondheim Munich → Trondheim Berlin → Trondheim Hamburg → Trondheim Zurich → Trondheim Geneva → Trondheim Vienna → Trondheim Dublin → Trondheim Madrid → Trondheim Barcelona → Trondheim Lisbon → Trondheim Porto → Trondheim Rome → Trondheim Milan → Trondheim Naples → Trondheim Athens → Trondheim Copenhagen → Trondheim Stockholm → Trondheim Oslo → Trondheim Helsinki → Trondheim Reykjavik → Trondheim Warsaw → Trondheim Krakow → Trondheim Prague → Trondheim Budapest → Trondheim Bucharest → Trondheim
Updated 2026-04-14 · Real-time travel data · Affiliate disclosure: this page contains affiliate links — we earn a commission if you book.
The Seattle to Trondheim flight takes approximately 4–9 hours depending on routing. Total journey time including check-in and airport transfers adds 2–3 hours. Filter search results by total journey time, not just fare, to find the most efficient routing.
January, february, and november typically offer the lowest fares, often 25–45% below peak-season prices. Shoulder season — April through May and September through October — balances value with excellent travel conditions. Avoid school holiday windows, when demand drives fares sharply higher.
Book 3–5 weeks ahead for the best price and seat availability. Fares typically rise sharply inside 14 days of departure. Searching on Tuesday or Wednesday mornings returns 10–15% lower fares than weekend searches on average.
Direct nonstop service may be limited on this route. Most itineraries connect through a major hub. Check current airline schedules as nonstop routes are added and removed seasonally.
Set a fare alert for the route and search ±3 days around your target travel dates. Compare fares from nearby airports — a short drive can unlock significantly lower base fares. Self-connecting through a separate booking can beat bundled itinerary prices by 20–30%, though this carries risk if your first segment is delayed.