Icelandair Flight UA623 Deals & Information (2025/2026)

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Icelandair Flight 623 Route Deals From $436

The cheapest prices found with in the last 7 days for return flights were $524 and $436 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Mar 1 - Wed, Mar 4
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$524 Roundtrip, found 1 day ago
$524
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sun, Mar 1 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Wed, Mar 4, priced at $524 found 1 day ago
Fri, Feb 6 - Wed, Feb 11
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$525 Roundtrip, found 7 hours ago
$525
Roundtrip
found 7 hours ago
Select Icelandair flight, departing Fri, Feb 6 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Wed, Feb 11, priced at $525 found 7 hours ago
Sat, Apr 18 - Thu, May 14
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$525 Roundtrip, found 2 days ago
$525
Roundtrip
found 2 days ago
Select Icelandair flight, departing Sat, Apr 18 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Thu, May 14, priced at $525 found 2 days ago
Fri, Apr 24 - Tue, Apr 28
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$536 Roundtrip, found 1 day ago
$536
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Apr 24 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Tue, Apr 28, priced at $536 found 1 day ago
Mon, Aug 4 - Thu, Oct 9
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$536 Roundtrip, found 4 days ago
$536
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, Aug 4 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Thu, Oct 9, priced at $536 found 4 days ago
Thu, Nov 6 - Wed, Nov 12
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$537 Roundtrip, found 2 days ago
$537
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 $537 found 2 days ago
Wed, Oct 15 - Tue, Oct 21
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$548 Roundtrip, found 1 day ago
$548
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Oct 15 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Tue, Oct 21, priced at $548 found 1 day ago
Tue, Aug 19 - Sun, Aug 31
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$548 Roundtrip, found 1 day ago
$548
Roundtrip
found 1 day ago
Select Icelandair flight, departing Tue, Aug 19 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Sun, Aug 31, priced at $548 found 1 day ago
Mon, Aug 4 - Wed, Aug 13
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$549 Roundtrip, found 1 day ago
$549
Roundtrip
found 1 day ago
Select Icelandair flight, departing Mon, Aug 4 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Wed, Aug 13, priced at $549 found 1 day ago
Thu, Sep 18 - Sun, Sep 21
KEF
Keflavik Intl.
EWR
Newark Liberty Intl. Airport
$560 Roundtrip, found 4 days ago
$560
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Sep 18 from Keflavik Intl. to Newark Liberty Intl. Airport, returning Sun, Sep 21, priced at $560 found 4 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.