Cheap Flights From Lambert-St. Louis Intl. (STL) To Keflavik Intl. (KEF)

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Cheapest Flights from St. Louis (STL) to Reykjavik (KEF)

The cheapest flights to Keflavik Intl. found within the past 7 days were CA $1,463 round trip and CA $1,007 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,463 Roundtrip, found 4 days ago
CA $1,463
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,463 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,464 Roundtrip, found 4 days ago
CA $1,464
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,464 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,468 Roundtrip, found 4 days ago
CA $1,468
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,468 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,472 Roundtrip, found 4 days ago
CA $1,472
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,472 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,473 Roundtrip, found 4 days ago
CA $1,473
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,473 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,477 Roundtrip, found 4 days ago
CA $1,477
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,477 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,532 Roundtrip, found 4 days ago
CA $1,532
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,532 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,532 Roundtrip, found 4 days ago
CA $1,532
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,532 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,536 Roundtrip, found 4 days ago
CA $1,536
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,536 found 4 days ago
Tue, Jun 9 - Mon, Jun 15
STL
St. Louis
KEF
Reykjavik
CA $1,663 Roundtrip, found 4 days ago
CA $1,663
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Tue, Jun 9 from St. Louis to Reykjavik, returning Mon, Jun 15, priced at CA $1,663 found 4 days ago

Frequently asked questions

Are there direct flights from STL to Keflavik Intl. Airport (KEF)?
Unfortunately, there are no nonstop flights from STL to Keflavik Intl. Airport (KEF). However, there are airlines that operate flights with just one stopover. Have a look at United Airlines, Air Canada and Delta.
What airlines fly from STL to KEF?
With no direct flights available, it's a wise idea to plan well in advance when traveling between St. Louis Lambert International Airport and Keflavik Intl. Airport (KEF). Find a convenient route with minimal layovers and save yourself some time.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from St. Louis (STL)

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Popular Flight Routes from Reykjavik (KEF)

Travelers at KEF love to visit these top cities. Roam to the top destinations from Reykjavik(KEF) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.