Airport Tips & Quick Reference Guide to Seattle–Tacoma Airport - Seatac (SEA)

FI684 Icelandair - Flight Status

Codeshare Flights
The flight AS5556 from Alaska Airlines (AS) is a codeshare flight operated by Icelandair (FI) under the flight number FI684. Check this page for details about flight FI684.

Below, you can find details about Icelandair flight FI684, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Reykjavik - Keflavik Airport (Airport Code KEF).
This flight data pertains specifically to the flight's details for Tuesday, May 26, 2026.

FI684 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

FI684 Icelandair to Reykjavik

Scheduled
Flight Status for Tuesday May 26, 2026
This flight is also scheduled for Today (May 25, 2026). See it here

Airline information

Icelandair
Icelandair
Equipment: Boeing 737MAX 8 Passenger

Departure

Seattle (SEA)
May 26, 2026
Seattle-Tacoma International Airport
Scheduled Departure Time:
11:25 pm
Gate:
-
Scheduled Departure Time: 11:25 pm

Arrival

Reykjavik (KEF)
May 27, 2026
Keflavik Airport
Scheduled Arrival Time:
02:00 pm
Terminal:
-
Gate:
-
Scheduled Arrival Time: 02:00 pm
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.seattle-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- AS5556 - Alaska Airlines

Additional Information

Which is the frequency of flight FI684?
The flight FI684 is scheduled to flight on Monday, Wednesday, Thursday, Friday, Saturday on a weekly basis.

Which is the distance of flight FI684?
The distance between the two airports is 3611 miles.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Seattle: 2026-05-25 01:41:45
Current Time in Reykjavik: 2026-05-25 08:41:45

Alternative Flights

The following airline serve the same route between Seattle and Reykjavik:
Icelandair - Flight Number: FI680. (On Time performance: 93 - Average Delay: 9 minutes)

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from May 21, 2025 to September 13, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights FI684

Date
Departure
Arrival
Duration
Aircraft
Status
Sunday
24 May
11:32 pm
Seattle (SEA)
01:56 pm
Reykjavik (KEF)
07h 24min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
23 May
11:44 pm
Seattle (SEA)
02:02 pm
Reykjavik (KEF)
07h 18min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Friday
22 May
11:39 pm
Seattle (SEA)
02:07 pm
Reykjavik (KEF)
07h 28min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
21 May
11:18 pm
Seattle (SEA)
01:52 pm
Reykjavik (KEF)
07h 34min
Boeing 737MAX
Boeing 737MAX
Landed - On-time