Icelandair Flight UA623 Deals & Information (2025/2026)

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Icelandair Flight 623 Route Deals From $444

The cheapest prices found with in the last 7 days for return flights were $533 and $444 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 27 - Fri, Oct 31
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$533 Roundtrip, found 1 day ago
$533
Roundtrip
found 1 day ago
Select Icelandair flight, departing Mon, Oct 27 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Fri, Oct 31, priced at $533 found 1 day ago
Mon, Nov 10 - Fri, Nov 28
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$533 Roundtrip, found 4 days ago
$533
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, Nov 10 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Fri, Nov 28, priced at $533 found 4 days ago
Sat, Jan 10 - Sat, Jan 17
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$535 Roundtrip, found 4 days ago
$535
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sat, Jan 10 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Sat, Jan 17, priced at $535 found 4 days ago
Thu, Nov 6 - Wed, Nov 12
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$544 Roundtrip, found 2 days ago
$544
Roundtrip
found 2 days ago
Select Icelandair flight, departing Thu, Nov 6 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Wed, Nov 12, priced at $544 found 2 days ago
Thu, Nov 20 - Wed, Nov 26
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$545 Roundtrip, found 2 hours ago
$545
Roundtrip
found 2 hours ago
Select Icelandair flight, departing Thu, Nov 20 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Wed, Nov 26, priced at $545 found 2 hours ago
Mon, Nov 10 - Mon, Nov 17
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$545 Roundtrip, found 6 days ago
$545
Roundtrip
found 6 days ago
Select Icelandair flight, departing Mon, Nov 10 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Mon, Nov 17, priced at $545 found 6 days ago
Thu, Jan 15 - Thu, Jan 29
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$547 Roundtrip, found 4 days ago
$547
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Jan 15 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Thu, Jan 29, priced at $547 found 4 days ago
Thu, Jul 24 - Wed, Jul 30
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$554 Roundtrip, found 2 days ago
$554
Roundtrip
found 2 days ago
Select Icelandair flight, departing Thu, Jul 24 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Wed, Jul 30, priced at $554 found 2 days ago
Mon, Oct 13 - Tue, Oct 21
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$556 Roundtrip, found 2 days ago
$556
Roundtrip
found 2 days ago
Select Icelandair flight, departing Mon, Oct 13 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Tue, Oct 21, priced at $556 found 2 days ago
Sun, May 24 - Sun, Jun 7
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$557 Roundtrip, found 3 days ago
$557
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sun, May 24 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Sun, Jun 7, priced at $557 found 3 days ago

Frequently asked questions

What route does flight number FI623 take?
FI623 flies non-stop from Reykjavik Airport (KEF-Keflavik Intl.) to EWR. During this journey, you'll be in the air for approximately 6 hours and 10 minutes. Consider booking ahead to lock in your favorite seat.
How often is FI623 on time?
Around 75% of Icelandair flight number FI623 planes arrive according to scheduled times — so you may want to leave a little extra room in your itinerary. In the event of a delay, the average wait is around 22 minutes. Be aware of this if you need to make a connecting journey or your friend is greeting you at the airport. This route has a rating of 2.35 stars.
What kind of plane is on flight number FI623?
The route for FI623 is nearly always Reykjavik Airport (KEF-Keflavik Intl.) to Newark, NJ Airport (EWR-Liberty Intl.), and the Boeing 737 MAX 9 is the type of aircraft you'll probably be taking off on.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your FI623 flight with Travelocity, please visit our Customer Service Portal.