Are these the guaranteed airline ticket prices?

No. AirHint displays the lowest fares we found in a recent search. Airlines change prices often; confirm the total on the booking site before you pay.

How current are these prices?

Results refresh when you open or revisit this page. Last snapshot: Oct 11, 2026.

Where do I complete my booking?

Use the price buttons to continue on our booking partner's site. AirHint surfaces fares; ticketing is completed with the airline or agency.

Cheapest one-way flights from St. Louis (STL) to Keflavik (KEF), June

10 dates in June 2027, from $ 375. Book in one tap, or check whether to buy now or wait.

One-way Return

Dates, airline, and price
Dates	Airline	Price
7 Jun 2027	Air Canada
13 Jun 2027	United
4 Jun 2027	United

7 Jun 2027	Icelandair Direct Flight
27 Jun 2027	United
28 Jun 2027	United
20 Jun 2027	United
29 Jun 2027	United
21 Jun 2027	United
26 Jun 2027	United

Cheapest deals for the full year

Deals for return flights from St. Louis to Keflavik in June.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik International Airport

Updated Oct 11, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Find your flight now

Feel free to contact us with any feedback or request another flight research.

Cheapest one-way flights from St. Louis (STL) to Keflavik (KEF), June

About these fares

Sign In

User Name