Earn point on your loyalty program!arrow arc left

Cheap flights from St Louis (STL) to Reykjavik (KEF)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from St Louis (STL) to Reykjavik (KEF)

How to find the cheapest flight from St Louis (STL) to Reykjavik (KEF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Reykjavik (KEF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Reykjavik (KEF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from St Louis to Reykjavik in September , October 2026

29 Sep - 06 Oct $ 1,232.00
STL
St Louis
Air Canada
1 STOPS
KEF
Reykjavik
KEF
Reykjavik
Air Canada
1 STOPS
STL
St Louis
Pick dates
30 Sep - 07 Oct $ 1,303.00
STL
St Louis
Air Canada
1 STOPS
KEF
Reykjavik
KEF
Reykjavik
Air Canada
1 STOPS
STL
St Louis
Pick dates
27 Sep - 03 Oct $ 1,390.00
STL
St Louis
United Airlines
1 STOPS
KEF
Reykjavik
KEF
Reykjavik
United Airlines
1 STOPS
STL
St Louis
Pick dates

Last minute flights from St Louis to Reykjavik

28 Sep - 01 Oct $ 1,558.00
STL
St Louis
Frontier Airlines
2 STOPS
KEF
Reykjavik
KEF
Reykjavik
Frontier Airlines
2 STOPS
STL
St Louis
Pick dates
28 Sep - 01 Oct $ 1,572.00
STL
St Louis
Southern Airways Express
2 STOPS
KEF
Reykjavik
KEF
Reykjavik
Southern Airways Express
2 STOPS
STL
St Louis
Pick dates
28 Sep - 01 Oct $ 1,636.00
STL
St Louis
Frontier Airlines
2 STOPS
KEF
Reykjavik
KEF
Reykjavik
Frontier Airlines
3 STOPS
STL
St Louis
Pick dates

One-way flights to Reykjavik from St Louis

5:36 PM - 9:35 PM
United Airlines
1 Stops
10h 14m
STL - KEF
$ 626
Kiwi
Pick dates
3:11 PM - 9:35 PM
United Airlines
1 Stops
12h 39m
STL - KEF
$ 626
Kiwi
Pick dates
7:01 PM - 9:35 PM
United Airlines
1 Stops
8h 49m
STL - KEF
$ 632
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to Reykjavik (KEF)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Reykjavik (KEF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Reykjavik (KEF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.