Icelandair Flight 343 Deals & Information (2026/2027)

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Icelandair Flight 343 Route Deals From $177

The cheapest prices found with in the last 7 days for return flights were $223 and $177 for one-way flights to Keflavik Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 21 - Mon, Nov 30
HEL
Vantaa
KEF
Keflavik Intl.
$223 Roundtrip, found 4 hours ago
$223
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Sat, Nov 21 from Vantaa to Keflavik Intl., returning Mon, Nov 30, priced at $223 found 4 hours ago
Thu, Nov 19 - Wed, Nov 25
HEL
Vantaa
KEF
Keflavik Intl.
$268 Roundtrip, found 3 days ago
$268
Roundtrip
found 3 days ago
Select Icelandair flight, departing Thu, Nov 19 from Vantaa to Keflavik Intl., returning Wed, Nov 25, priced at $268 found 3 days ago
Wed, Mar 17 - Fri, Mar 26
HEL
Vantaa
KEF
Keflavik Intl.
$289 Roundtrip, found 3 days ago
$289
Roundtrip
found 3 days ago
Select Icelandair flight, departing Wed, Mar 17 from Vantaa to Keflavik Intl., returning Fri, Mar 26, priced at $289 found 3 days ago
Thu, Feb 25 - Tue, Mar 2
HEL
Vantaa
KEF
Keflavik Intl.
$290 Roundtrip, found 6 days ago
$290
Roundtrip
found 6 days ago
Select Icelandair flight, departing Thu, Feb 25 from Vantaa to Keflavik Intl., returning Tue, Mar 2, priced at $290 found 6 days ago
Fri, Dec 4 - Mon, Dec 7
HEL
Vantaa
KEF
Keflavik Intl.
$327 Roundtrip, found 6 days ago
$327
Roundtrip
found 6 days ago
Select Icelandair flight, departing Fri, Dec 4 from Vantaa to Keflavik Intl., returning Mon, Dec 7, priced at $327 found 6 days ago
Thu, Nov 19 - Wed, Nov 25
HEL
Vantaa
KEF
Keflavik Intl.
$341 Roundtrip, found 3 days ago
$341
Roundtrip
found 3 days ago
Select Icelandair flight, departing Thu, Nov 19 from Vantaa to Keflavik Intl., returning Wed, Nov 25, priced at $341 found 3 days ago
Thu, Dec 24 - Sun, Dec 27
HEL
Vantaa
KEF
Keflavik Intl.
$355 Roundtrip, found 6 days ago
$355
Roundtrip
found 6 days ago
Select Icelandair flight, departing Thu, Dec 24 from Vantaa to Keflavik Intl., returning Sun, Dec 27, priced at $355 found 6 days ago
Thu, Feb 25 - Tue, Mar 2
HEL
Vantaa
KEF
Keflavik Intl.
$363 Roundtrip, found 6 days ago
$363
Roundtrip
found 6 days ago
Select Icelandair flight, departing Thu, Feb 25 from Vantaa to Keflavik Intl., returning Tue, Mar 2, priced at $363 found 6 days ago
Sat, Nov 21 - Mon, Nov 30
HEL
Vantaa
KEF
Keflavik Intl.
$395 Roundtrip, found 4 hours ago
$395
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Sat, Nov 21 from Vantaa to Keflavik Intl., returning Mon, Nov 30, priced at $395 found 4 hours ago
Fri, Mar 26 - Tue, Mar 30
HEL
Vantaa
KEF
Keflavik Intl.
$411 Roundtrip, found 2 hours ago
$411
Roundtrip
found 2 hours ago
Select Icelandair flight, departing Fri, Mar 26 from Vantaa to Keflavik Intl., returning Tue, Mar 30, priced at $411 found 2 hours ago

Frequently asked questions

What route does flight number FI343 take?
Flight number FI343 flies non-stop from Helsinki Airport (HEL-Vantaa) to Keflavik Intl. Airport (KEF). During this journey, expect to be in the air for about 3 hours and 35 minutes. Book ahead to secure your preferred seat.
What terminal does FI343 fly out of?
FI343 runs between Helsinki Airport and Reykjavik Airport (KEF-Keflavik Intl.), and those taking this flight generally jet off from Terminal 1.
What kind of plane is on flight number FI343?
Get ready to board a Boeing 737 MAX 8 if you're traveling on flight FI343. Most flights from HEL to KEF use this aircraft type.
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 FI343 flight with Travelocity, please visit our Customer Service Portal.