Reykjavík to Seattle (KEF–SEA) — Airlines, Schedules & Connections

KEF Airport Page →
3,611 mi airlines charter/private 22/wk
On-time Some delays Frequent delays
Flight Schedule 7 flights Verified 39m ago
Also flown by charter / private operators: Global Jet Austria, GmbH.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
FI685
FI Icelandair
7M8
10:40 AM
GMT
11:45 AM
PDT
8h 5m
43%
M T W T F S S
Prices
FI681
FI Icelandair
B38M
4:50 PM
GMT
5:55 PM
PDT
8h 5m
43%
M T W T F S S
Prices
FI683
FI Icelandair
7M8
7:45 PM
GMT
8:40 PM
PDT
7h 55m
43%
M T W T F S S
Prices
FI11
FI Icelandair
7:57 PM
GMT
8:12 PM
PDT
7h 15m
43%
M T W T F S S
Prices
FI680
FI Icelandair
B38M
3:40 PM
PDT
6:15 AM+1
GMT
7h 35m
M T W T F S S
Prices
FI682
FI Icelandair
32Q
7:00 PM
PDT
9:25 AM+1
GMT
7h 25m
M T W T F S S
Prices
FI684
FI Icelandair
B38M
11:25 PM
PDT Red-eye
2:00 PM+1
GMT
7h 35m
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
PDX Portland 10h 5m FI AFAMAS Portland (PDX) to Seattle flights
YVR Vancouver 10h 7m FI ACAFAM Vancouver (YVR) to Seattle flights
YYC Calgary 10h 24m WS ASAYEK Calgary (YYC) to Seattle flights
DEN Denver 11h 21m FI 8CAFAS Denver (DEN) to Seattle flights
MSP Minneapolis 11h 41m AFDLFI AFAMAS Minneapolis (MSP) to Seattle flights
ORD Chicago 12h 18m ACFIOS AAASAV Chicago (ORD) to Seattle flights
BOS Boston 12h 53m FI AFASAY Boston (BOS) to Seattle flights
JFK New York 13h 11m AFDLFI AFAMAS New York (JFK) to Seattle flights
EWR Newark 13h 17m FISNUA ASJLOZ Newark (EWR) to Seattle flights
LHR London 13h 57m AIBAEK ASAYBA London (LHR) to Seattle flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Reykjavík to Seattle
3 carriers, 22 flights/week nonstop.
3 Airlines 3,611 mi 8h nonstop -7h behind

KEF–SEA is served by 3 airlines with nonstop service. Icelandair, Alaska Airlines and airBaltic lead the route. The flight covers 3,611 miles in approximately 8h. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop KEF–SEA service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
FI Icelandair 22 7M8, B38M 7h15-8h05
AS Alaska Airlines 4 Oneworld
BT airBaltic 0
Aircraft on this route
7M8 Boeing 737 MAX 8 – FI
B38M Boeing 737 MAX 8 – FI
Alliance coverage
Unaffiliated: BT + FI (22 flights/wk, 85%)
Oneworld: AS (4 flights/wk, 15%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, KEF to SEA direction.
Mon
2
flights
Tue
3
flights
Wed
2
flights
Thu
4
flights
Fri
4
flights
Sat
4
flights
Sun
3
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
4
Nonstop flights
22
Outbound / wk
17
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for KEF to SEA.
1-STOP
One-Stop Connections
27
Hubs
~10h
Fastest
~27h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,048
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
KEF → SEA
92%
Generally reliable. Most flights run on time.
Arriving
92%
Return
SEA → KEF
72%
Moderate delays possible. Allow buffer time.
Departing
72%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays →

Travel Essentials

Practical planning for this route.
Time Difference
-7h
Seattle is 7 hours behind Reykjavík.
KEF: GMT · SEA: PDT

When it's 6:00 PM in Reykjavík, it's 11:00 AM in Seattle.
Distance & Flight Time
3,611 mi / 5,811 km
Nonstop flight time is approximately 8h 0m gate to gate.
Getting from SEA

Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.

Seattle Climate

Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.

Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.

KEF–SEA Quick Facts

Key statistics for the Reykjavík to Seattle route.
Route details
Distance3,611 mi / 5,811 km
Flight time8h
Time difference-7 hours
Airlines (nonstop)3
Weekly flights22 out / 17 return
1-stop connectionsAvailable
Origin: KEF
IATA / ICAOKEF / BIKF
TimezoneAtlantic/Reykjavik
Passengers/yr8.3M
Elevation171 ft / 52 m
Destination: SEA
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr50.8M
Elevation433 ft / 132 m

Frequently Asked Questions

Common questions about KEF to SEA flights.
Nonstop flights from Keflavik International Airport to Seattle–Tacoma International Airport take about 8h gate to gate. The route covers 3,611 miles.
3 airlines operate flights from KEF to SEA: Icelandair, Alaska Airlines and airBaltic.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Portland, Vancouver and Calgary.
On a single ticket, yes. Your bags are checked through to SEA and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Seattle is 7 hours behind Reykjavík.
Yes, return flights from SEA to KEF are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from KEF to SEA

Keflavik International Airport (KEF) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Icelandair, Alaska Airlines and airBaltic. With 22 weekly departures, this is a well served route.

KEF to SEA Flight Duration and Schedule

Nonstop flight time from KEF to SEA is about 8 hours gate to gate. The route covers a distance of 3,611 miles (5,811 km). There are approximately 22 weekly flights outbound and 17 return, totaling 39 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Portland, Vancouver and Calgary. Two-stop connections are also available via intermediate hubs.