Delta Flights from Seattle to Reykjavik (SEA-KEF)
Everything you need to fly Origin to Destination: timing, airlines, and insider tips.
Seasonal Summer
Flown by Delta
Travel from the Pacific Northwest to the heart of the North Atlantic with Delta's direct seasonal service. Connecting Seattle-Tacoma International Airport to Keflavik International Airport, this route offers a streamlined path for travelers heading to Iceland's dramatic landscapes without the need for East Coast layovers.
This specific route, identified by the code DL-SEA-KEF, is a seasonal summer operation. Delta utilizes the Boeing 757-200 for this trans-Atlantic crossing, providing a consistent narrow-body experience for the approximately 7.5-hour journey.
“As one of the few direct links between the US West Coast and Iceland, this route is essential for summer tourism. It bypasses major hubs like New York or Atlanta, saving several hours of travel time for those starting in the Pacific Northwest.”
Book with Borderly • Powered by Duffel
Fly to Destination, booked directly.
Real-time seat availability, live baggage options, and transparent fares across 400+ airlines.
Airline
Delta
Region
Europe
Aircraft
B757-200
Service
Seasonal Summer
Airports
Landing and taking off
Departure
Seattle-Tacoma International (SEA)
Check-In
Use the Delta Fly Delta app for digital boarding passes and bag tracking.
Connections
Free high-speed Wi-Fi is available throughout the terminal.
Security
International travelers should arrive at least 3 hours before departure, especially during the busy summer season.
Arrival
Keflavik International Airport (KEF)
On Arrival
The duty-free shop is available upon arrival; many locals buy alcohol here to avoid high city prices.
Ground Transport
The Flybus and Airport Direct shuttles meet every arriving flight for transport to Reykjavik.
Planning Ahead
KEF is a compact airport, but customs lines can be long during the early morning arrival wave from North America.
Booking, timing and fares
Timing & Reliability
Schedule. Usually departs Seattle in the late afternoon and arrives in Iceland early the following morning.
Duration. Eastbound flights are shorter due to tailwinds, while westbound return flights take longer.
Seasonality. This route typically operates from May through September.
Time Zones. Iceland operates on GMT year-round and does not observe daylight savings.
Fares & Booking
Booking Window. Early spring is the latest you should wait to book for the summer season.
Cabin Advice. Delta One is recommended for those who want a lie-flat experience, though availability is limited on the 757.
Peak Pricing. Prices spike significantly in July and August due to high European tourism demand.
Peak
June through August sees the highest load factors and prices.
Shoulder
May and September offer a balance of manageable prices and decent weather.
Off-Peak
This route does not operate during the winter months.
- Book at least 4 to 6 months in advance as summer demand for Iceland is extremely high.
- Use the Delta Flexible Dates calendar to find lower fares mid-week.
- Consider upgrading to Comfort+ for the extra legroom on this long-haul narrow-body flight.
Search Flights
Want tours and activities at either end?
Book vetted tours and experiences through our travel partner.
Best Time to Fly Origin to Destination
Summer (June - August)
Best for 24-hour daylight and access to the interior highlands.
Late May / Early September
Shoulder season offering slightly lower fares and fewer crowds.
Trip Planning
Who this route suits
Best For
Adventure Seekers
Direct access to Iceland's hiking, glaciers, and volcanic landscapes.
Families
The direct flight minimizes the stress of layovers with children.
Photography Enthusiasts
Perfect for capturing the Midnight Sun during the peak summer months.
Connections & Alternatives
Akureyri
Take a domestic flight from Reykjavik to explore the north of Iceland.
Amsterdam
Common connection point via Delta's partner KLM for further European travel.
London
Easily accessible from KEF via various low-cost carriers for a multi-city trip.
Travel Tips for the Origin-Destination Route
Good to Know
Visa & Entry
- US citizens do not need a visa for stays under 90 days for tourism.
- Ensure your passport is valid for at least three months beyond your intended departure date.
- Iceland is a member of the Schengen Area, so you will clear immigration upon arrival at KEF.
Airport Transfers
- Pre-booking a rental car is highly recommended as local supply is limited in the summer.
- The Flybus takes approximately 45-50 minutes to reach the BSI Bus Terminal in Reykjavik.
- Private transfers are available but significantly more expensive than the shuttle buses.
Baggage & Transit
- Ensure your carry-on includes a warm layer as temperatures in Iceland are cool even in summer.
- Delta's standard international baggage allowance applies, but check specific fare class rules.
- If connecting in KEF to a domestic flight, remember that domestic flights depart from the separate Reykjavik Airport (RKV).
Checklist
- Valid Passport
- Universal power adapter (Type F)
- Windproof and waterproof outer layers
- Travel insurance covering outdoor activities
Airlines Flying Origin to Destination
Delta
Daily during peak summer months
Features Delta One, Comfort+, and Main Cabin configurations on the B757-200
Common questions
Is the Seattle to Reykjavik flight available year-round?
No, Delta operates this route as a seasonal service, primarily during the summer months from May to September.
What aircraft does Delta fly from SEA to KEF?
Delta typically uses the Boeing 757-200 aircraft for this specific route.
How long is the flight from Seattle to Iceland?
The direct flight usually takes between 7 hours and 30 minutes to 8 hours.
Does Delta provide meals on the Seattle to Reykjavik flight?
Yes, as an international trans-Atlantic flight, Delta provides complimentary meal service and beverages in all cabins.
Which airport does the flight arrive at in Iceland?
The flight arrives at Keflavik International Airport (KEF), which is the main international gateway for Iceland.
Borderly
Fly this route? Track it.
Log this flight in your Borderly travel vault, earn badges, and see how your miles stack up.
Explore more
Structured data verifiedAirports
Countries & Layovers
Your Travel Vault
Track Delta Air Lines Sea Kef
Upload your Origin to Destination boarding pass and keep every flight organized in your Borderly travel vault.
- Use the Borderly platform to monitor flight statistics and route performance.
- Download the Fly Delta app for real-time flight status updates.
- Sign up for Delta's email alerts for schedule changes on seasonal routes.
Keep every boarding pass, route, and milestone in one place.
Saily eSIMBorderly AI